./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0490b_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_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0490b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 34324710c17488da862b5b1b77adbd97563f405e ............................................................................................................................................................................................................................................................................................................................................. 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_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0490b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 34324710c17488da862b5b1b77adbd97563f405e .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:35:18,443 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:35:18,444 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:35:18,450 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:35:18,450 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:35:18,451 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:35:18,452 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:35:18,453 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:35:18,455 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:35:18,455 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:35:18,456 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:35:18,456 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:35:18,457 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:35:18,458 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:35:18,458 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:35:18,459 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:35:18,459 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:35:18,461 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:35:18,462 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:35:18,463 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:35:18,464 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:35:18,465 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:35:18,467 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:35:18,467 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:35:18,468 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:35:18,468 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:35:18,469 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:35:18,469 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:35:18,470 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:35:18,471 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:35:18,471 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:35:18,471 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:35:18,472 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:35:18,472 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:35:18,472 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:35:18,474 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:35:18,474 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 12:35:18,485 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:35:18,485 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:35:18,485 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:35:18,485 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 12:35:18,486 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:35:18,486 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:35:18,486 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 12:35:18,486 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:35:18,486 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:35:18,487 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:35:18,487 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:35:18,487 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:35:18,487 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:35:18,487 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:35:18,487 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:35:18,487 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:35:18,488 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:35:18,488 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:35:18,488 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:35:18,488 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:35:18,488 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:35:18,488 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:35:18,488 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:35:18,489 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:35:18,490 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:35:18,490 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:35:18,490 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:35:18,490 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 12:35:18,491 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:35:18,491 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:35:18,491 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_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer 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 -> Automizer 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 -> 34324710c17488da862b5b1b77adbd97563f405e [2018-11-18 12:35:18,516 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:35:18,525 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:35:18,527 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:35:18,528 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:35:18,529 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:35:18,529 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0490b_true-unreach-call.c [2018-11-18 12:35:18,577 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer/data/69dbf77f8/9fb10105f2cd4516a81201d569f8c1f1/FLAG0e6b87580 [2018-11-18 12:35:18,934 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:35:18,936 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_132af86e-58ed-46b1-9692-8759ae2955f9/sv-benchmarks/c/float-newlib/double_req_bl_0490b_true-unreach-call.c [2018-11-18 12:35:18,941 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer/data/69dbf77f8/9fb10105f2cd4516a81201d569f8c1f1/FLAG0e6b87580 [2018-11-18 12:35:18,951 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer/data/69dbf77f8/9fb10105f2cd4516a81201d569f8c1f1 [2018-11-18 12:35:18,954 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:35:18,955 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 12:35:18,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:35:18,956 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:35:18,959 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:35:18,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:35:18" (1/1) ... [2018-11-18 12:35:18,962 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@602e9054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:35:18, skipping insertion in model container [2018-11-18 12:35:18,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:35:18" (1/1) ... [2018-11-18 12:35:18,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:35:18,988 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:35:19,134 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:35:19,137 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:35:19,180 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:35:19,196 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:35:19,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:35:19 WrapperNode [2018-11-18 12:35:19,196 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:35:19,197 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:35:19,197 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:35:19,197 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:35:19,256 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:35:19" (1/1) ... [2018-11-18 12:35:19,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:35:19" (1/1) ... [2018-11-18 12:35:19,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:35:19" (1/1) ... [2018-11-18 12:35:19,265 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:35:19" (1/1) ... [2018-11-18 12:35:19,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:35:19" (1/1) ... [2018-11-18 12:35:19,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:35:19" (1/1) ... [2018-11-18 12:35:19,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:35:19" (1/1) ... [2018-11-18 12:35:19,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:35:19,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:35:19,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:35:19,292 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:35:19,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:35:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer/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 12:35:19,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:35:19,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:35:19,331 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-11-18 12:35:19,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2018-11-18 12:35:19,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acos [2018-11-18 12:35:19,331 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:35:19,332 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 12:35:19,332 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-11-18 12:35:19,332 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2018-11-18 12:35:19,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:35:19,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 12:35:19,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 12:35:19,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 12:35:19,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 12:35:19,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 12:35:19,332 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acos [2018-11-18 12:35:19,332 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:35:19,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:35:19,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:35:19,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 12:35:19,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-18 12:35:19,927 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:35:19,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:35:19 BoogieIcfgContainer [2018-11-18 12:35:19,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:35:19,928 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:35:19,928 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:35:19,930 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:35:19,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:35:18" (1/3) ... [2018-11-18 12:35:19,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e019938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:35:19, skipping insertion in model container [2018-11-18 12:35:19,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:35:19" (2/3) ... [2018-11-18 12:35:19,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e019938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:35:19, skipping insertion in model container [2018-11-18 12:35:19,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:35:19" (3/3) ... [2018-11-18 12:35:19,934 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0490b_true-unreach-call.c [2018-11-18 12:35:19,943 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:35:19,949 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:35:19,963 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:35:19,990 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:35:19,991 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:35:19,991 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:35:19,991 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:35:19,991 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:35:19,991 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:35:19,991 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:35:19,991 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:35:19,991 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:35:20,008 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2018-11-18 12:35:20,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 12:35:20,014 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:35:20,015 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:35:20,017 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:35:20,021 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:35:20,022 INFO L82 PathProgramCache]: Analyzing trace with hash -2130266062, now seen corresponding path program 1 times [2018-11-18 12:35:20,023 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:35:20,024 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:35:20,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:35:20,065 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:35:20,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:35:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:35:20,148 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 12:35:20,150 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:35:20,151 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:35:20,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 12:35:20,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 12:35:20,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:35:20,167 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 2 states. [2018-11-18 12:35:20,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:35:20,191 INFO L93 Difference]: Finished difference Result 166 states and 250 transitions. [2018-11-18 12:35:20,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 12:35:20,192 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-11-18 12:35:20,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:35:20,201 INFO L225 Difference]: With dead ends: 166 [2018-11-18 12:35:20,201 INFO L226 Difference]: Without dead ends: 83 [2018-11-18 12:35:20,204 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 12:35:20,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-11-18 12:35:20,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2018-11-18 12:35:20,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-11-18 12:35:20,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 109 transitions. [2018-11-18 12:35:20,241 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 109 transitions. Word has length 23 [2018-11-18 12:35:20,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:35:20,241 INFO L480 AbstractCegarLoop]: Abstraction has 83 states and 109 transitions. [2018-11-18 12:35:20,241 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 12:35:20,241 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 109 transitions. [2018-11-18 12:35:20,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 12:35:20,243 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:35:20,243 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:35:20,243 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:35:20,243 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:35:20,243 INFO L82 PathProgramCache]: Analyzing trace with hash -2015651507, now seen corresponding path program 1 times [2018-11-18 12:35:20,243 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:35:20,244 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:35:20,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:35:20,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:35:20,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:35:20,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:35:20,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:35:20,328 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 12:35:20,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:35:20 BoogieIcfgContainer [2018-11-18 12:35:20,358 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:35:20,358 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:35:20,358 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:35:20,358 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:35:20,359 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:35:19" (3/4) ... [2018-11-18 12:35:20,362 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 12:35:20,362 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:35:20,363 INFO L168 Benchmark]: Toolchain (without parser) took 1408.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -92.0 MB). Peak memory consumption was 38.0 MB. Max. memory is 11.5 GB. [2018-11-18 12:35:20,364 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:35:20,364 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.27 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 940.4 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2018-11-18 12:35:20,365 INFO L168 Benchmark]: Boogie Preprocessor took 94.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -186.9 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:35:20,365 INFO L168 Benchmark]: RCFGBuilder took 635.16 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: 35.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. [2018-11-18 12:35:20,366 INFO L168 Benchmark]: TraceAbstraction took 429.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. [2018-11-18 12:35:20,366 INFO L168 Benchmark]: Witness Printer took 4.16 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:35:20,370 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 241.27 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 940.4 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 94.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -186.9 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 635.16 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: 35.8 MB). Peak memory consumption was 35.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 429.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. * Witness Printer took 4.16 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 228]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 136, overapproximation of someBinaryArithmeticDOUBLEoperation at line 173, overapproximation of bitwiseAnd at line 154, overapproximation of someBinaryDOUBLEComparisonOperation at line 17. Possible FailurePath: [L19] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L131-L144] static const double one_acos = 1.00000000000000000000e+00, pi = 3.14159265358979311600e+00, pio2_hi_acos = 1.57079632679489655800e+00, pio2_lo_acos = 6.12323399573676603587e-17, pS0_acos = 1.66666666666666657415e-01, pS1_acos = -3.25565818622400915405e-01, pS2_acos = 2.01212532134862925881e-01, pS3_acos = -4.00555345006794114027e-02, pS4_acos = 7.91534994289814532176e-04, pS5_acos = 3.47933107596021167570e-05, qS1_acos = -2.40339491173441421878e+00, qS2_acos = 2.02094576023350569471e+00, qS3_acos = -6.88283971605453293030e-01, qS4_acos = 7.70381505559019352791e-02; VAL [\old(one_acos)=6442450962, \old(one_sqrt)=6442450953, \old(pi)=6442450951, \old(pi)=6442450965, \old(pi)=6442450955, \old(pS0_acos)=6442450945, \old(pS1_acos)=6442450963, \old(pS2_acos)=6442450964, \old(pS3_acos)=6442450949, \old(pS4_acos)=6442450954, \old(pS5_acos)=6442450966, \old(qS1_acos)=6442450948, \old(qS2_acos)=6442450956, \old(qS3_acos)=6442450958, \old(qS4_acos)=6442450950, \old(tiny_sqrt)=6442450961, one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L223] double x = -1.0 / 0.0; VAL [one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L224] CALL, EXPR __ieee754_acos(x) VAL [\old(x)=6442450959, one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L147] double z, p, q, r, w, s, c, df; [L148] __int32_t hx, ix; VAL [\old(x)=6442450959, one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450959] [L150] FCALL ieee_double_shape_type gh_u; [L151] FCALL gh_u.value = (x) [L152] EXPR, FCALL gh_u.parts.msw [L152] (hx) = gh_u.parts.msw [L153] COND FALSE !(0) VAL [\old(x)=6442450959, hx=-2147483648, one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450959] [L154] ix = hx & 0x7fffffff VAL [\old(x)=6442450959, hx=-2147483648, one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450959] [L155] COND FALSE !(ix >= 0x3ff00000) VAL [\old(x)=6442450959, hx=-2147483648, ix=1012924417, one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450959] [L170] COND TRUE ix < 0x3fe00000 VAL [\old(x)=6442450959, hx=-2147483648, ix=1012924417, one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450959] [L171] COND FALSE !(ix <= 0x3c600000) [L173] z = x * x [L174-L177] p = z * (pS0_acos + z * (pS1_acos + z * (pS2_acos + z * (pS3_acos + z * (pS4_acos + z * pS5_acos))))) [L178-L179] q = one_acos + z * (qS1_acos + z * (qS2_acos + z * (qS3_acos + z * qS4_acos))) [L180] r = p / q [L181] RET return pio2_hi_acos - (x - (pio2_lo_acos - x * r)); VAL [\old(x)=6442450959, hx=-2147483648, ix=1012924417, one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450959] [L224] EXPR __ieee754_acos(x) VAL [__ieee754_acos(x)=6442450952, one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450959] [L224] double res = __ieee754_acos(x); [L227] CALL, EXPR isnan_double(res) VAL [\old(x)=6442450952, one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L17] RET return x != x; VAL [\old(x)=6442450952, \result=0, one_acos=1, one_sqrt=1, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450952] [L227] EXPR isnan_double(res) VAL [isnan_double(res)=0, one_acos=1, one_sqrt=1, pi=785398163397448279/500000000000000000, pi=785398163397448279/250000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, res=6442450952, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450959] [L227] COND TRUE !isnan_double(res) [L228] __VERIFIER_error() VAL [one_acos=1, one_sqrt=1, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, res=6442450952, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=6442450959] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 87 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 113 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=87occurred 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, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 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 12:35:22,018 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:35:22,020 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:35:22,030 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:35:22,030 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:35:22,031 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:35:22,031 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:35:22,033 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:35:22,034 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:35:22,035 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:35:22,036 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:35:22,036 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:35:22,036 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:35:22,038 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:35:22,038 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:35:22,039 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:35:22,039 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:35:22,041 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:35:22,042 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:35:22,044 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:35:22,044 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:35:22,046 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:35:22,047 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:35:22,047 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:35:22,048 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:35:22,049 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:35:22,049 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:35:22,050 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:35:22,050 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:35:22,051 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:35:22,051 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:35:22,052 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:35:22,052 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:35:22,052 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:35:22,054 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:35:22,054 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:35:22,054 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 12:35:22,065 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:35:22,065 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:35:22,066 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:35:22,066 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 12:35:22,066 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:35:22,066 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:35:22,066 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 12:35:22,067 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:35:22,067 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:35:22,067 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:35:22,067 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:35:22,067 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:35:22,067 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:35:22,067 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:35:22,068 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 12:35:22,068 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 12:35:22,068 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:35:22,068 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:35:22,068 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:35:22,068 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:35:22,068 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:35:22,069 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:35:22,070 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:35:22,071 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:35:22,071 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:35:22,071 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:35:22,071 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:35:22,071 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:35:22,071 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 12:35:22,072 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:35:22,072 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 12:35:22,072 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 12:35:22,072 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_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer 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 -> Automizer 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 -> 34324710c17488da862b5b1b77adbd97563f405e [2018-11-18 12:35:22,104 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:35:22,114 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:35:22,119 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:35:22,120 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:35:22,120 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:35:22,121 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0490b_true-unreach-call.c [2018-11-18 12:35:22,172 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer/data/6503bd9b8/b4497ed817fc4040b9cea4dea2f4ff7d/FLAG0a38d3276 [2018-11-18 12:35:22,523 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:35:22,524 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_132af86e-58ed-46b1-9692-8759ae2955f9/sv-benchmarks/c/float-newlib/double_req_bl_0490b_true-unreach-call.c [2018-11-18 12:35:22,528 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer/data/6503bd9b8/b4497ed817fc4040b9cea4dea2f4ff7d/FLAG0a38d3276 [2018-11-18 12:35:22,537 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer/data/6503bd9b8/b4497ed817fc4040b9cea4dea2f4ff7d [2018-11-18 12:35:22,539 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:35:22,540 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 12:35:22,540 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:35:22,541 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:35:22,543 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:35:22,544 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:35:22" (1/1) ... [2018-11-18 12:35:22,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@404064a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:35:22, skipping insertion in model container [2018-11-18 12:35:22,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:35:22" (1/1) ... [2018-11-18 12:35:22,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:35:22,576 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:35:22,789 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:35:22,796 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:35:22,842 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:35:22,866 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:35:22,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:35:22 WrapperNode [2018-11-18 12:35:22,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:35:22,867 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:35:22,867 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:35:22,867 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:35:22,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:35:22" (1/1) ... [2018-11-18 12:35:22,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:35:22" (1/1) ... [2018-11-18 12:35:22,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:35:22" (1/1) ... [2018-11-18 12:35:22,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:35:22" (1/1) ... [2018-11-18 12:35:22,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:35:22" (1/1) ... [2018-11-18 12:35:22,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:35:22" (1/1) ... [2018-11-18 12:35:22,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:35:22" (1/1) ... [2018-11-18 12:35:22,973 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:35:22,973 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:35:22,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:35:22,973 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:35:22,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:35:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer/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 12:35:23,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:35:23,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:35:23,016 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-11-18 12:35:23,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2018-11-18 12:35:23,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acos [2018-11-18 12:35:23,016 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:35:23,016 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 12:35:23,016 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-11-18 12:35:23,016 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2018-11-18 12:35:23,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:35:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-18 12:35:23,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 12:35:23,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 12:35:23,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 12:35:23,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-18 12:35:23,021 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acos [2018-11-18 12:35:23,021 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:35:23,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:35:23,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:35:23,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-11-18 12:35:23,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 12:35:23,214 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 12:35:26,506 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 12:35:36,333 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 12:35:36,510 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 12:35:38,989 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:35:38,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:35:38 BoogieIcfgContainer [2018-11-18 12:35:38,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:35:38,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:35:38,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:35:38,991 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:35:38,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:35:22" (1/3) ... [2018-11-18 12:35:38,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27879c32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:35:38, skipping insertion in model container [2018-11-18 12:35:38,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:35:22" (2/3) ... [2018-11-18 12:35:38,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27879c32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:35:38, skipping insertion in model container [2018-11-18 12:35:38,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:35:38" (3/3) ... [2018-11-18 12:35:38,996 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0490b_true-unreach-call.c [2018-11-18 12:35:39,004 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:35:39,009 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:35:39,019 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:35:39,039 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:35:39,040 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:35:39,040 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:35:39,040 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:35:39,040 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:35:39,040 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:35:39,040 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:35:39,040 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:35:39,041 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:35:39,051 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2018-11-18 12:35:39,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 12:35:39,055 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:35:39,056 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:35:39,057 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:35:39,060 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:35:39,060 INFO L82 PathProgramCache]: Analyzing trace with hash 253597376, now seen corresponding path program 1 times [2018-11-18 12:35:39,063 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:35:39,064 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer/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 12:35:39,074 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:35:39,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:35:39,801 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:35:39,812 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 12:35:39,813 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:35:39,834 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:35:39,834 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:35:39,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 12:35:39,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 12:35:39,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:35:39,851 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 2 states. [2018-11-18 12:35:39,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:35:39,876 INFO L93 Difference]: Finished difference Result 164 states and 248 transitions. [2018-11-18 12:35:39,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 12:35:39,878 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-18 12:35:39,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:35:39,886 INFO L225 Difference]: With dead ends: 164 [2018-11-18 12:35:39,887 INFO L226 Difference]: Without dead ends: 82 [2018-11-18 12:35:39,890 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 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 12:35:39,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-11-18 12:35:39,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2018-11-18 12:35:39,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-11-18 12:35:39,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 108 transitions. [2018-11-18 12:35:39,928 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 108 transitions. Word has length 22 [2018-11-18 12:35:39,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:35:39,929 INFO L480 AbstractCegarLoop]: Abstraction has 82 states and 108 transitions. [2018-11-18 12:35:39,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 12:35:39,929 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 108 transitions. [2018-11-18 12:35:39,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 12:35:39,931 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:35:39,931 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:35:39,931 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:35:39,932 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:35:39,932 INFO L82 PathProgramCache]: Analyzing trace with hash 1832054529, now seen corresponding path program 1 times [2018-11-18 12:35:39,932 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:35:39,932 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer/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 12:35:39,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:35:43,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:35:44,167 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:35:44,293 WARN L180 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2018-11-18 12:35:44,478 WARN L180 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2018-11-18 12:35:44,644 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2018-11-18 12:35:47,350 WARN L832 $PredicateComparison]: unable to prove that (and (= (fp.sub roundNearestTiesToEven c_~pio2_hi_acos~0 (fp.sub roundNearestTiesToEven |c___ieee754_acos_#in~x| (fp.sub roundNearestTiesToEven c_~pio2_lo_acos~0 (fp.mul roundNearestTiesToEven |c___ieee754_acos_#in~x| (let ((.cse0 (fp.mul roundNearestTiesToEven |c___ieee754_acos_#in~x| |c___ieee754_acos_#in~x|))) (fp.div roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~pS0_acos~0 (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~pS1_acos~0 (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~pS2_acos~0 (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~pS3_acos~0 (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~pS4_acos~0 (fp.mul roundNearestTiesToEven .cse0 c_~pS5_acos~0))))))))))) (fp.add roundNearestTiesToEven c_~one_acos~0 (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~qS1_acos~0 (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~qS2_acos~0 (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~qS3_acos~0 (fp.mul roundNearestTiesToEven .cse0 c_~qS4_acos~0)))))))))))))) |c___ieee754_acos_#res|) (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 49470937143113408261.0 62500000000000000000000.0)) c_~pS4_acos~0) (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 201212532134862925881.0 1000000000000000000000.0)) c_~pS2_acos~0) (= c_~one_acos~0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (= c_~pS0_acos~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 33333333333333331483.0 200000000000000000000.0))) (= (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 65113163724480183081.0 200000000000000000000.0))) c_~pS1_acos~0) (= c_~qS1_acos~0 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 120169745586720710939.0 50000000000000000000.0)))) (= c_~qS3_acos~0 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 68828397160545329303.0 100000000000000000000.0)))) (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 770381505559019352791.0 10000000000000000000000.0)) c_~qS4_acos~0) (= c_~pS5_acos~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 34793310759602116757.0 1000000000000000000000000.0))) (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 202094576023350569471.0 100000000000000000000.0)) c_~qS2_acos~0) (= c_~pS3_acos~0 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 400555345006794114027.0 10000000000000000000000.0))))) is different from false [2018-11-18 12:35:50,272 WARN L854 $PredicateComparison]: unable to prove that (and (= (fp.sub roundNearestTiesToEven c_~pio2_hi_acos~0 (fp.sub roundNearestTiesToEven |c___ieee754_acos_#in~x| (fp.sub roundNearestTiesToEven c_~pio2_lo_acos~0 (fp.mul roundNearestTiesToEven |c___ieee754_acos_#in~x| (let ((.cse0 (fp.mul roundNearestTiesToEven |c___ieee754_acos_#in~x| |c___ieee754_acos_#in~x|))) (fp.div roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~pS0_acos~0 (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~pS1_acos~0 (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~pS2_acos~0 (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~pS3_acos~0 (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~pS4_acos~0 (fp.mul roundNearestTiesToEven .cse0 c_~pS5_acos~0))))))))))) (fp.add roundNearestTiesToEven c_~one_acos~0 (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~qS1_acos~0 (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~qS2_acos~0 (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~qS3_acos~0 (fp.mul roundNearestTiesToEven .cse0 c_~qS4_acos~0)))))))))))))) |c___ieee754_acos_#res|) (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 49470937143113408261.0 62500000000000000000000.0)) c_~pS4_acos~0) (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 201212532134862925881.0 1000000000000000000000.0)) c_~pS2_acos~0) (= c_~one_acos~0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (= c_~pS0_acos~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 33333333333333331483.0 200000000000000000000.0))) (= (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 65113163724480183081.0 200000000000000000000.0))) c_~pS1_acos~0) (= c_~qS1_acos~0 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 120169745586720710939.0 50000000000000000000.0)))) (= c_~qS3_acos~0 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 68828397160545329303.0 100000000000000000000.0)))) (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 770381505559019352791.0 10000000000000000000000.0)) c_~qS4_acos~0) (= c_~pS5_acos~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 34793310759602116757.0 1000000000000000000000000.0))) (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 202094576023350569471.0 100000000000000000000.0)) c_~qS2_acos~0) (= c_~pS3_acos~0 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 400555345006794114027.0 10000000000000000000000.0))))) is different from true [2018-11-18 12:35:50,617 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 12:35:50,617 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:35:50,676 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:35:50,677 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 12:35:50,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 12:35:50,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 12:35:50,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=55, Unknown=2, NotChecked=14, Total=90 [2018-11-18 12:35:50,678 INFO L87 Difference]: Start difference. First operand 82 states and 108 transitions. Second operand 10 states. [2018-11-18 12:36:01,891 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2018-11-18 12:36:06,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:36:06,091 INFO L93 Difference]: Finished difference Result 140 states and 184 transitions. [2018-11-18 12:36:07,136 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 12:36:07,136 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2018-11-18 12:36:07,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:36:07,139 INFO L225 Difference]: With dead ends: 140 [2018-11-18 12:36:07,139 INFO L226 Difference]: Without dead ends: 130 [2018-11-18 12:36:07,140 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=27, Invalid=85, Unknown=2, NotChecked=18, Total=132 [2018-11-18 12:36:07,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-11-18 12:36:07,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 128. [2018-11-18 12:36:07,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2018-11-18 12:36:07,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 172 transitions. [2018-11-18 12:36:07,162 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 172 transitions. Word has length 23 [2018-11-18 12:36:07,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:36:07,162 INFO L480 AbstractCegarLoop]: Abstraction has 128 states and 172 transitions. [2018-11-18 12:36:07,162 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 12:36:07,163 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 172 transitions. [2018-11-18 12:36:07,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 12:36:07,163 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:36:07,163 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:36:07,164 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:36:07,164 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:36:07,164 INFO L82 PathProgramCache]: Analyzing trace with hash 2028568034, now seen corresponding path program 1 times [2018-11-18 12:36:07,164 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:36:07,165 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer/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 12:36:07,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:36:07,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:36:07,303 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:36:07,339 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 12:36:07,339 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 12:36:07,342 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2018-11-18 12:36:07,389 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 24 [2018-11-18 12:36:07,390 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 12:36:07,402 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-11-18 12:36:07,407 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 4 [2018-11-18 12:36:07,407 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 12:36:07,409 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 12:36:07,411 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 12:36:07,418 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 12:36:07,418 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:42, output treesize:14 [2018-11-18 12:36:07,493 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 12:36:07,493 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:36:07,501 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:36:07,501 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 12:36:07,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:36:07,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:36:07,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:36:07,502 INFO L87 Difference]: Start difference. First operand 128 states and 172 transitions. Second operand 7 states. [2018-11-18 12:36:13,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:36:13,372 INFO L93 Difference]: Finished difference Result 140 states and 183 transitions. [2018-11-18 12:36:13,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:36:13,373 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-11-18 12:36:13,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:36:13,374 INFO L225 Difference]: With dead ends: 140 [2018-11-18 12:36:13,374 INFO L226 Difference]: Without dead ends: 78 [2018-11-18 12:36:13,375 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-18 12:36:13,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-11-18 12:36:13,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 76. [2018-11-18 12:36:13,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-11-18 12:36:13,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 98 transitions. [2018-11-18 12:36:13,384 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 98 transitions. Word has length 23 [2018-11-18 12:36:13,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:36:13,384 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 98 transitions. [2018-11-18 12:36:13,384 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:36:13,385 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 98 transitions. [2018-11-18 12:36:13,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 12:36:13,385 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:36:13,385 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:36:13,385 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:36:13,386 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:36:13,386 INFO L82 PathProgramCache]: Analyzing trace with hash 486091453, now seen corresponding path program 1 times [2018-11-18 12:36:13,386 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:36:13,386 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer/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 12:36:13,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:36:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:36:14,066 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:36:27,660 WARN L180 SmtUtils]: Spent 4.16 s on a formula simplification that was a NOOP. DAG size: 6 [2018-11-18 12:36:39,004 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 12:36:39,004 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:36:39,018 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:36:39,018 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 12:36:39,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 12:36:39,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 12:36:39,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-18 12:36:39,019 INFO L87 Difference]: Start difference. First operand 76 states and 98 transitions. Second operand 9 states. [2018-11-18 12:36:51,645 WARN L854 $PredicateComparison]: unable to prove that (and (= |c___ieee754_acos_#res| (let ((.cse0 (fp.sub roundNearestTiesToEven |c___ieee754_acos_#in~x| |c___ieee754_acos_#in~x|))) (fp.div roundNearestTiesToEven .cse0 .cse0))) (= |c___ieee754_acos_#in~x| c___ieee754_acos_~x)) is different from true [2018-11-18 12:37:13,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:37:13,844 INFO L93 Difference]: Finished difference Result 85 states and 107 transitions. [2018-11-18 12:37:13,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 12:37:13,845 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2018-11-18 12:37:13,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:37:13,846 INFO L225 Difference]: With dead ends: 85 [2018-11-18 12:37:13,846 INFO L226 Difference]: Without dead ends: 78 [2018-11-18 12:37:13,847 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 34.2s TimeCoverageRelationStatistics Valid=31, Invalid=103, Unknown=2, NotChecked=20, Total=156 [2018-11-18 12:37:13,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-11-18 12:37:13,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 76. [2018-11-18 12:37:13,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-11-18 12:37:13,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 97 transitions. [2018-11-18 12:37:13,859 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 97 transitions. Word has length 24 [2018-11-18 12:37:13,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:37:13,859 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 97 transitions. [2018-11-18 12:37:13,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 12:37:13,859 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 97 transitions. [2018-11-18 12:37:13,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 12:37:13,860 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:37:13,860 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] [2018-11-18 12:37:13,860 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:37:13,860 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:37:13,860 INFO L82 PathProgramCache]: Analyzing trace with hash -326643660, now seen corresponding path program 1 times [2018-11-18 12:37:13,860 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:37:13,861 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer/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 12:37:13,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:37:13,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:37:13,973 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:37:13,991 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 12:37:13,991 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 12:37:13,993 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2018-11-18 12:37:14,029 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 21 [2018-11-18 12:37:14,029 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 12:37:14,041 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-11-18 12:37:14,046 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2018-11-18 12:37:14,046 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 12:37:14,047 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 12:37:14,049 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 12:37:14,055 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 12:37:14,055 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:42, output treesize:14 [2018-11-18 12:37:14,139 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 12:37:14,139 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:37:14,147 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:37:14,147 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 12:37:14,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:37:14,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:37:14,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:37:14,148 INFO L87 Difference]: Start difference. First operand 76 states and 97 transitions. Second operand 7 states. [2018-11-18 12:37:17,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:37:17,662 INFO L93 Difference]: Finished difference Result 86 states and 106 transitions. [2018-11-18 12:37:17,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:37:17,681 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-11-18 12:37:17,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:37:17,682 INFO L225 Difference]: With dead ends: 86 [2018-11-18 12:37:17,682 INFO L226 Difference]: Without dead ends: 72 [2018-11-18 12:37:17,682 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 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 12:37:17,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-11-18 12:37:17,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-11-18 12:37:17,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-11-18 12:37:17,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 91 transitions. [2018-11-18 12:37:17,696 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 91 transitions. Word has length 25 [2018-11-18 12:37:17,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:37:17,696 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 91 transitions. [2018-11-18 12:37:17,697 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:37:17,697 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 91 transitions. [2018-11-18 12:37:17,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 12:37:17,697 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:37:17,697 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:37:17,698 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:37:17,698 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:37:17,698 INFO L82 PathProgramCache]: Analyzing trace with hash -86341488, now seen corresponding path program 1 times [2018-11-18 12:37:17,698 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:37:17,698 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_132af86e-58ed-46b1-9692-8759ae2955f9/bin-2019/uautomizer/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 12:37:17,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:37:21,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:37:22,054 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:37:22,419 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2018-11-18 12:37:24,829 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.add roundNearestTiesToEven c_~one_acos~0 |c___ieee754_acos_#in~x|) ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0))))) (and (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 49470937143113408261.0 62500000000000000000000.0)) c_~pS4_acos~0) (= c_~qS1_acos~0 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 120169745586720710939.0 50000000000000000000.0)))) (= c_~pS5_acos~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 34793310759602116757.0 1000000000000000000000000.0))) (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 201212532134862925881.0 1000000000000000000000.0)) c_~pS2_acos~0) (= c_~one_acos~0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (= (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~pS0_acos~0 (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~pS1_acos~0 (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~pS2_acos~0 (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~pS3_acos~0 (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~pS4_acos~0 (fp.mul roundNearestTiesToEven .cse0 c_~pS5_acos~0))))))))))) c___ieee754_acos_~p~0) (= c_~pS0_acos~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 33333333333333331483.0 200000000000000000000.0))) (= (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 65113163724480183081.0 200000000000000000000.0))) c_~pS1_acos~0) (= c_~qS3_acos~0 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 68828397160545329303.0 100000000000000000000.0)))) (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 770381505559019352791.0 10000000000000000000000.0)) c_~qS4_acos~0) (= (fp.add roundNearestTiesToEven c_~one_acos~0 (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~qS1_acos~0 (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~qS2_acos~0 (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~qS3_acos~0 (fp.mul roundNearestTiesToEven .cse0 c_~qS4_acos~0)))))))) c___ieee754_acos_~q~1) (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 202094576023350569471.0 100000000000000000000.0)) c_~qS2_acos~0) (= c_~pS3_acos~0 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 400555345006794114027.0 10000000000000000000000.0)))))) is different from false [2018-11-18 12:37:27,604 WARN L832 $PredicateComparison]: unable to prove that (and (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 49470937143113408261.0 62500000000000000000000.0)) c_~pS4_acos~0) (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 201212532134862925881.0 1000000000000000000000.0)) c_~pS2_acos~0) (= c_~one_acos~0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (= c_~pS0_acos~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 33333333333333331483.0 200000000000000000000.0))) (= (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 65113163724480183081.0 200000000000000000000.0))) c_~pS1_acos~0) (= c_~qS1_acos~0 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 120169745586720710939.0 50000000000000000000.0)))) (= c_~qS3_acos~0 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 68828397160545329303.0 100000000000000000000.0)))) (exists ((__ieee754_acos_~s~0 (_ FloatingPoint 11 53))) (= (fp.sub roundNearestTiesToEven c_~pi~0 (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) (fp.add roundNearestTiesToEven __ieee754_acos_~s~0 (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.add roundNearestTiesToEven c_~one_acos~0 |c___ieee754_acos_#in~x|) ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0))))) (fp.div roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~pS0_acos~0 (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~pS1_acos~0 (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~pS2_acos~0 (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~pS3_acos~0 (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~pS4_acos~0 (fp.mul roundNearestTiesToEven .cse0 c_~pS5_acos~0))))))))))) (fp.add roundNearestTiesToEven c_~one_acos~0 (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~qS1_acos~0 (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~qS2_acos~0 (fp.mul roundNearestTiesToEven .cse0 (fp.add roundNearestTiesToEven c_~qS3_acos~0 (fp.mul roundNearestTiesToEven .cse0 c_~qS4_acos~0)))))))))) __ieee754_acos_~s~0) c_~pio2_lo_acos~0)))) |c___ieee754_acos_#res|)) (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 770381505559019352791.0 10000000000000000000000.0)) c_~qS4_acos~0) (= c_~pS5_acos~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 34793310759602116757.0 1000000000000000000000000.0))) (= ((_ to_fp 11 53) roundNearestTiesToEven (/ 202094576023350569471.0 100000000000000000000.0)) c_~qS2_acos~0) (= c_~pS3_acos~0 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 400555345006794114027.0 10000000000000000000000.0))))) is different from false [2018-11-18 12:37:27,999 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 12:37:27,999 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:37:28,050 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:37:28,050 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-18 12:37:28,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 12:37:28,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 12:37:28,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=57, Unknown=2, NotChecked=30, Total=110 [2018-11-18 12:37:28,051 INFO L87 Difference]: Start difference. First operand 72 states and 91 transitions. Second operand 11 states. [2018-11-18 12:37:31,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:37:31,587 INFO L93 Difference]: Finished difference Result 72 states and 91 transitions. [2018-11-18 12:37:31,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 12:37:31,587 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 31 [2018-11-18 12:37:31,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:37:31,588 INFO L225 Difference]: With dead ends: 72 [2018-11-18 12:37:31,588 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 12:37:31,588 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=25, Invalid=71, Unknown=2, NotChecked=34, Total=132 [2018-11-18 12:37:31,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 12:37:31,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 12:37:31,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 12:37:31,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 12:37:31,589 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-11-18 12:37:31,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:37:31,589 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:37:31,589 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 12:37:31,589 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 12:37:31,589 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 12:37:31,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 12:37:47,160 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-11-18 12:37:47,160 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:221) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:140) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:102) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.pop(WrapperScript.java:106) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UndoableWrapperScript.pop(UndoableWrapperScript.java:58) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:67) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:626) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:122) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:187) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.simplify(SmtUtils.java:151) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.simplifyWithStatistics(SmtUtils.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter(HoareAnnotationComposer.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.(HoareAnnotationComposer.java:105) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeCFGHoareAnnotation(BasicCegarLoop.java:980) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 32 more [2018-11-18 12:37:47,162 INFO L168 Benchmark]: Toolchain (without parser) took 144623.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 196.1 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -135.2 MB). Peak memory consumption was 60.9 MB. Max. memory is 11.5 GB. [2018-11-18 12:37:47,163 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 973.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:37:47,163 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.32 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 927.7 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:37:47,169 INFO L168 Benchmark]: Boogie Preprocessor took 105.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 927.7 MB in the beginning and 1.1 GB in the end (delta: -190.0 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:37:47,169 INFO L168 Benchmark]: RCFGBuilder took 16016.02 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: 50.4 MB). Peak memory consumption was 50.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:37:47,170 INFO L168 Benchmark]: TraceAbstraction took 128172.20 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -17.1 MB). Peak memory consumption was 48.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:37:47,172 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 973.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 326.32 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 927.7 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 105.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 927.7 MB in the beginning and 1.1 GB in the end (delta: -190.0 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 16016.02 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: 50.4 MB). Peak memory consumption was 50.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 128172.20 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -17.1 MB). Peak memory consumption was 48.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 228]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...