./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0460_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0460_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/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 2f567a7a12cd8f512f9f6ce0cb1d1ec1e0dd22bc ........................................................................................................................................................................................................................................................................................................................ 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_19fc9981-baad-4f5f-91c4-ffcab75f1993/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0460_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/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 2f567a7a12cd8f512f9f6ce0cb1d1ec1e0dd22bc ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 15:23:24,633 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 15:23:24,634 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 15:23:24,642 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 15:23:24,642 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 15:23:24,643 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 15:23:24,643 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 15:23:24,644 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 15:23:24,645 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 15:23:24,645 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 15:23:24,646 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 15:23:24,646 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 15:23:24,646 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 15:23:24,647 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 15:23:24,647 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 15:23:24,648 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 15:23:24,648 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 15:23:24,649 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 15:23:24,650 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 15:23:24,651 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 15:23:24,651 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 15:23:24,652 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 15:23:24,653 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 15:23:24,653 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 15:23:24,653 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 15:23:24,654 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 15:23:24,654 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 15:23:24,654 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 15:23:24,655 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 15:23:24,655 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 15:23:24,655 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 15:23:24,656 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 15:23:24,656 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 15:23:24,656 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 15:23:24,656 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 15:23:24,657 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 15:23:24,657 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-02 15:23:24,664 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 15:23:24,664 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 15:23:24,665 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 15:23:24,665 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 15:23:24,665 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 15:23:24,665 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 15:23:24,666 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 15:23:24,666 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 15:23:24,666 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 15:23:24,666 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 15:23:24,666 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 15:23:24,666 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 15:23:24,666 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 15:23:24,667 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 15:23:24,667 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 15:23:24,667 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 15:23:24,667 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 15:23:24,667 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 15:23:24,667 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 15:23:24,667 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 15:23:24,667 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 15:23:24,668 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 15:23:24,668 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 15:23:24,668 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 15:23:24,668 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 15:23:24,668 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 15:23:24,668 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 15:23:24,668 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 15:23:24,669 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 15:23:24,669 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 15:23:24,669 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_19fc9981-baad-4f5f-91c4-ffcab75f1993/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 -> 2f567a7a12cd8f512f9f6ce0cb1d1ec1e0dd22bc [2018-12-02 15:23:24,686 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 15:23:24,693 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 15:23:24,695 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 15:23:24,696 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 15:23:24,696 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 15:23:24,696 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0460_true-unreach-call.c [2018-12-02 15:23:24,733 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/bin-2019/uautomizer/data/494cba5d6/b3d1511e9d564e589fda1e7a28c543bc/FLAG1417c6327 [2018-12-02 15:23:25,126 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 15:23:25,126 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/sv-benchmarks/c/float-newlib/float_req_bl_0460_true-unreach-call.c [2018-12-02 15:23:25,131 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/bin-2019/uautomizer/data/494cba5d6/b3d1511e9d564e589fda1e7a28c543bc/FLAG1417c6327 [2018-12-02 15:23:25,139 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/bin-2019/uautomizer/data/494cba5d6/b3d1511e9d564e589fda1e7a28c543bc [2018-12-02 15:23:25,140 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 15:23:25,141 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 15:23:25,142 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 15:23:25,142 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 15:23:25,144 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 15:23:25,144 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:23:25" (1/1) ... [2018-12-02 15:23:25,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74e1e261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:25, skipping insertion in model container [2018-12-02 15:23:25,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:23:25" (1/1) ... [2018-12-02 15:23:25,150 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 15:23:25,163 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 15:23:25,269 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 15:23:25,272 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 15:23:25,296 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 15:23:25,339 INFO L195 MainTranslator]: Completed translation [2018-12-02 15:23:25,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:25 WrapperNode [2018-12-02 15:23:25,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 15:23:25,340 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 15:23:25,340 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 15:23:25,340 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 15:23:25,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:25" (1/1) ... [2018-12-02 15:23:25,352 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:25" (1/1) ... [2018-12-02 15:23:25,356 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 15:23:25,357 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 15:23:25,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 15:23:25,357 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 15:23:25,363 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:25" (1/1) ... [2018-12-02 15:23:25,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:25" (1/1) ... [2018-12-02 15:23:25,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:25" (1/1) ... [2018-12-02 15:23:25,365 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:25" (1/1) ... [2018-12-02 15:23:25,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:25" (1/1) ... [2018-12-02 15:23:25,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:25" (1/1) ... [2018-12-02 15:23:25,378 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:25" (1/1) ... [2018-12-02 15:23:25,380 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 15:23:25,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 15:23:25,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 15:23:25,380 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 15:23:25,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/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 [2018-12-02 15:23:25,413 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-12-02 15:23:25,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-12-02 15:23:25,413 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 15:23:25,413 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 15:23:25,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-02 15:23:25,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 15:23:25,413 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-02 15:23:25,414 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-02 15:23:25,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 15:23:25,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 15:23:25,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-02 15:23:25,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 15:23:25,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 15:23:25,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 15:23:25,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 15:23:25,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 15:23:25,415 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-12-02 15:23:25,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-12-02 15:23:25,639 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 15:23:25,639 INFO L280 CfgBuilder]: Removed 12 assue(true) statements. [2018-12-02 15:23:25,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:23:25 BoogieIcfgContainer [2018-12-02 15:23:25,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 15:23:25,640 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 15:23:25,640 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 15:23:25,642 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 15:23:25,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:23:25" (1/3) ... [2018-12-02 15:23:25,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c51bc95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:23:25, skipping insertion in model container [2018-12-02 15:23:25,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:25" (2/3) ... [2018-12-02 15:23:25,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c51bc95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:23:25, skipping insertion in model container [2018-12-02 15:23:25,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:23:25" (3/3) ... [2018-12-02 15:23:25,644 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0460_true-unreach-call.c [2018-12-02 15:23:25,650 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 15:23:25,655 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 15:23:25,664 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 15:23:25,681 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 15:23:25,681 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 15:23:25,681 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 15:23:25,681 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 15:23:25,681 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 15:23:25,681 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 15:23:25,681 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 15:23:25,681 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 15:23:25,681 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 15:23:25,692 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states. [2018-12-02 15:23:25,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 15:23:25,695 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:23:25,696 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:23:25,697 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:23:25,700 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:23:25,700 INFO L82 PathProgramCache]: Analyzing trace with hash -961075978, now seen corresponding path program 1 times [2018-12-02 15:23:25,701 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 15:23:25,702 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 15:23:25,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:23:25,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:23:25,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:23:25,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:23:25,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:23:25,788 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 15:23:25,788 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 15:23:25,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 15:23:25,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 15:23:25,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 15:23:25,799 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 2 states. [2018-12-02 15:23:25,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:23:25,815 INFO L93 Difference]: Finished difference Result 129 states and 192 transitions. [2018-12-02 15:23:25,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 15:23:25,816 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-12-02 15:23:25,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:23:25,821 INFO L225 Difference]: With dead ends: 129 [2018-12-02 15:23:25,821 INFO L226 Difference]: Without dead ends: 64 [2018-12-02 15:23:25,823 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 15:23:25,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-12-02 15:23:25,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2018-12-02 15:23:25,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-12-02 15:23:25,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 81 transitions. [2018-12-02 15:23:25,849 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 81 transitions. Word has length 23 [2018-12-02 15:23:25,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:23:25,850 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 81 transitions. [2018-12-02 15:23:25,850 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 15:23:25,850 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 81 transitions. [2018-12-02 15:23:25,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-02 15:23:25,851 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:23:25,851 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:23:25,851 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:23:25,852 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:23:25,852 INFO L82 PathProgramCache]: Analyzing trace with hash 2050098715, now seen corresponding path program 1 times [2018-12-02 15:23:25,852 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 15:23:25,852 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 15:23:25,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:23:25,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:23:25,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 15:23:25,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 15:23:25,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 15:23:25,909 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 15:23:25,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:23:25 BoogieIcfgContainer [2018-12-02 15:23:25,936 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 15:23:25,936 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 15:23:25,936 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 15:23:25,936 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 15:23:25,937 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:23:25" (3/4) ... [2018-12-02 15:23:25,939 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 15:23:25,939 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 15:23:25,939 INFO L168 Benchmark]: Toolchain (without parser) took 798.45 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 954.4 MB in the beginning and 1.0 GB in the end (delta: -77.6 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. [2018-12-02 15:23:25,940 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 15:23:25,940 INFO L168 Benchmark]: CACSL2BoogieTranslator took 198.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 954.4 MB in the beginning and 1.1 GB in the end (delta: -153.9 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2018-12-02 15:23:25,941 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-02 15:23:25,941 INFO L168 Benchmark]: Boogie Preprocessor took 23.36 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-02 15:23:25,941 INFO L168 Benchmark]: RCFGBuilder took 259.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. [2018-12-02 15:23:25,942 INFO L168 Benchmark]: TraceAbstraction took 295.77 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-12-02 15:23:25,942 INFO L168 Benchmark]: Witness Printer took 2.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-02 15:23:25,944 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 198.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.0 MB). Free memory was 954.4 MB in the beginning and 1.1 GB in the end (delta: -153.9 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.36 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 259.73 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 295.77 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 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: 177]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of someUnaryDOUBLEoperation at line 87, overapproximation of bitwiseAnd at line 101. Possible FailurePath: [L15] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L84-L91] static const float one_acos = 1.0000000000e+00, pi = 3.1415925026e+00, pio2_hi_acos = 1.5707962513e+00, pio2_lo_acos = 7.5497894159e-08, pS0_acos = 1.6666667163e-01, pS1_acos = -3.2556581497e-01, pS2_acos = 2.0121252537e-01, pS3_acos = -4.0055535734e-02, pS4_acos = 7.9153501429e-04, pS5_acos = 3.4793309169e-05, qS1_acos = -2.4033949375e+00, qS2_acos = 2.0209457874e+00, qS3_acos = -6.8828397989e-01, qS4_acos = 7.7038154006e-02; VAL [\old(one_acos)=6442450960, \old(one_sqrt)=6442450952, \old(pi)=6442450954, \old(pi)=6442450963, \old(pi)=6442450949, \old(pS0_acos)=6442450944, \old(pS1_acos)=6442450961, \old(pS2_acos)=6442450962, \old(pS3_acos)=6442450947, \old(pS4_acos)=6442450953, \old(pS5_acos)=6442450964, \old(qS1_acos)=6442450946, \old(qS2_acos)=6442450955, \old(qS3_acos)=6442450958, \old(qS4_acos)=6442450948, \old(tiny_sqrt)=6442450959, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L169] float x = __VERIFIER_nondet_float(); [L171] COND TRUE x < -1.0f || x > 1.0f VAL [one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450950] [L173] CALL, EXPR __ieee754_acosf(x) VAL [\old(x)=6442450950, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L94] float z, p, q, r, w, s, c, df; [L95] __int32_t hx, ix; VAL [\old(x)=6442450950, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450950] [L97] ieee_float_shape_type gf_u; [L98] gf_u.value = (x) [L99] EXPR gf_u.word [L99] (hx) = gf_u.word [L101] ix = hx & 0x7fffffff VAL [\old(x)=6442450950, hx=2147483647, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450950] [L102] COND TRUE ix == 0x3f800000 VAL [\old(x)=6442450950, hx=2147483647, ix=1065353216, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450950] [L103] COND TRUE hx > 0 [L104] return 0.0; VAL [\old(x)=6442450950, \result=0, hx=2147483647, ix=1065353216, one_acos=1, one_sqrt=1, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450950] [L173] RET, EXPR __ieee754_acosf(x) VAL [__ieee754_acosf(x)=0, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450950] [L173] float res = __ieee754_acosf(x); [L176] CALL, EXPR isnan_float(res) VAL [\old(x)=0, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L13] return x != x; VAL [\old(x)=0, \result=0, one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L176] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, res=0, tiny_sqrt=1/1000000000000000000000000000000, x=6442450950] [L176] COND TRUE !isnan_float(res) [L177] __VERIFIER_error() VAL [one_acos=1, one_sqrt=1, pi=15707962513/10000000000, pi=75497894159/1000000000000000000, pi=15707962513/5000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, res=0, tiny_sqrt=1/1000000000000000000000000000000, x=6442450950] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 69 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 87 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=69occurred 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 0.1.23-635dfa2 [2018-12-02 15:23:27,296 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 15:23:27,297 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 15:23:27,303 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 15:23:27,303 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 15:23:27,304 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 15:23:27,304 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 15:23:27,305 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 15:23:27,306 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 15:23:27,306 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 15:23:27,307 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 15:23:27,307 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 15:23:27,308 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 15:23:27,308 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 15:23:27,309 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 15:23:27,309 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 15:23:27,309 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 15:23:27,310 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 15:23:27,311 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 15:23:27,312 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 15:23:27,312 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 15:23:27,313 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 15:23:27,314 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 15:23:27,314 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 15:23:27,314 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 15:23:27,315 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 15:23:27,316 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 15:23:27,316 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 15:23:27,316 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 15:23:27,317 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 15:23:27,317 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 15:23:27,318 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 15:23:27,318 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 15:23:27,318 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 15:23:27,318 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 15:23:27,319 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 15:23:27,319 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-02 15:23:27,326 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 15:23:27,326 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 15:23:27,327 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 15:23:27,327 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 15:23:27,327 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 15:23:27,327 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 15:23:27,328 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 15:23:27,328 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 15:23:27,328 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 15:23:27,328 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 15:23:27,328 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 15:23:27,328 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 15:23:27,328 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 15:23:27,328 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 15:23:27,329 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-02 15:23:27,329 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-02 15:23:27,329 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 15:23:27,329 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 15:23:27,329 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 15:23:27,329 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 15:23:27,329 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 15:23:27,329 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 15:23:27,330 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 15:23:27,330 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 15:23:27,330 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 15:23:27,330 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 15:23:27,330 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 15:23:27,330 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 15:23:27,330 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-02 15:23:27,331 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 15:23:27,331 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-02 15:23:27,331 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-02 15:23:27,331 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_19fc9981-baad-4f5f-91c4-ffcab75f1993/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 -> 2f567a7a12cd8f512f9f6ce0cb1d1ec1e0dd22bc [2018-12-02 15:23:27,350 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 15:23:27,359 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 15:23:27,362 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 15:23:27,363 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 15:23:27,363 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 15:23:27,364 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0460_true-unreach-call.c [2018-12-02 15:23:27,404 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/bin-2019/uautomizer/data/794794b5e/f81ea7d5c946490e995db78a3253d0bb/FLAGc7089373f [2018-12-02 15:23:27,791 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 15:23:27,792 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/sv-benchmarks/c/float-newlib/float_req_bl_0460_true-unreach-call.c [2018-12-02 15:23:27,796 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/bin-2019/uautomizer/data/794794b5e/f81ea7d5c946490e995db78a3253d0bb/FLAGc7089373f [2018-12-02 15:23:27,806 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/bin-2019/uautomizer/data/794794b5e/f81ea7d5c946490e995db78a3253d0bb [2018-12-02 15:23:27,809 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 15:23:27,810 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 15:23:27,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 15:23:27,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 15:23:27,813 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 15:23:27,814 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:23:27" (1/1) ... [2018-12-02 15:23:27,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a12c072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:27, skipping insertion in model container [2018-12-02 15:23:27,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:23:27" (1/1) ... [2018-12-02 15:23:27,822 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 15:23:27,836 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 15:23:27,950 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 15:23:27,954 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 15:23:27,983 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 15:23:27,999 INFO L195 MainTranslator]: Completed translation [2018-12-02 15:23:27,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:27 WrapperNode [2018-12-02 15:23:27,999 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 15:23:27,999 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 15:23:28,000 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 15:23:28,000 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 15:23:28,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:27" (1/1) ... [2018-12-02 15:23:28,013 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:27" (1/1) ... [2018-12-02 15:23:28,024 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 15:23:28,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 15:23:28,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 15:23:28,025 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 15:23:28,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:27" (1/1) ... [2018-12-02 15:23:28,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:27" (1/1) ... [2018-12-02 15:23:28,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:27" (1/1) ... [2018-12-02 15:23:28,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:27" (1/1) ... [2018-12-02 15:23:28,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:27" (1/1) ... [2018-12-02 15:23:28,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:27" (1/1) ... [2018-12-02 15:23:28,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:27" (1/1) ... [2018-12-02 15:23:28,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 15:23:28,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 15:23:28,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 15:23:28,076 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 15:23:28,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/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 [2018-12-02 15:23:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-12-02 15:23:28,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-12-02 15:23:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 15:23:28,106 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 15:23:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-02 15:23:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-02 15:23:28,106 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-02 15:23:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 15:23:28,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 15:23:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 15:23:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-02 15:23:28,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 15:23:28,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 15:23:28,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-02 15:23:28,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-02 15:23:28,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 15:23:28,107 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-12-02 15:23:28,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-12-02 15:23:30,397 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:23:37,161 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:23:37,231 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 15:23:37,562 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 15:23:37,562 INFO L280 CfgBuilder]: Removed 12 assue(true) statements. [2018-12-02 15:23:37,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:23:37 BoogieIcfgContainer [2018-12-02 15:23:37,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 15:23:37,563 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 15:23:37,563 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 15:23:37,565 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 15:23:37,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:23:27" (1/3) ... [2018-12-02 15:23:37,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f739e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:23:37, skipping insertion in model container [2018-12-02 15:23:37,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:27" (2/3) ... [2018-12-02 15:23:37,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f739e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:23:37, skipping insertion in model container [2018-12-02 15:23:37,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:23:37" (3/3) ... [2018-12-02 15:23:37,567 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0460_true-unreach-call.c [2018-12-02 15:23:37,575 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 15:23:37,580 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 15:23:37,589 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 15:23:37,606 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 15:23:37,606 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 15:23:37,606 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 15:23:37,607 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 15:23:37,607 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 15:23:37,607 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 15:23:37,607 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 15:23:37,607 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 15:23:37,607 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 15:23:37,616 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2018-12-02 15:23:37,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-02 15:23:37,620 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:23:37,621 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:23:37,622 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:23:37,625 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:23:37,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1262342526, now seen corresponding path program 1 times [2018-12-02 15:23:37,627 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 15:23:37,628 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/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 [2018-12-02 15:23:37,632 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:23:37,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:23:37,703 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 15:23:37,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:23:37,714 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 15:23:37,723 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 15:23:37,723 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 15:23:37,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 15:23:37,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 15:23:37,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 15:23:37,734 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 2 states. [2018-12-02 15:23:37,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:23:37,750 INFO L93 Difference]: Finished difference Result 127 states and 190 transitions. [2018-12-02 15:23:37,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 15:23:37,751 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-12-02 15:23:37,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:23:37,757 INFO L225 Difference]: With dead ends: 127 [2018-12-02 15:23:37,757 INFO L226 Difference]: Without dead ends: 63 [2018-12-02 15:23:37,760 INFO L631 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 [2018-12-02 15:23:37,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-12-02 15:23:37,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-12-02 15:23:37,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-12-02 15:23:37,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 80 transitions. [2018-12-02 15:23:37,786 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 80 transitions. Word has length 22 [2018-12-02 15:23:37,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:23:37,787 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 80 transitions. [2018-12-02 15:23:37,787 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 15:23:37,787 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2018-12-02 15:23:37,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 15:23:37,787 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:23:37,787 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:23:37,788 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:23:37,788 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:23:37,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1047695047, now seen corresponding path program 1 times [2018-12-02 15:23:37,788 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 15:23:37,788 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/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 [2018-12-02 15:23:37,792 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:23:37,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:23:37,845 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 15:23:37,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:23:37,945 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 15:23:37,953 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 15:23:37,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 15:23:37,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 15:23:37,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 15:23:37,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 15:23:37,955 INFO L87 Difference]: Start difference. First operand 63 states and 80 transitions. Second operand 7 states. [2018-12-02 15:23:43,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:23:43,823 INFO L93 Difference]: Finished difference Result 75 states and 91 transitions. [2018-12-02 15:23:43,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 15:23:43,824 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-12-02 15:23:43,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:23:43,827 INFO L225 Difference]: With dead ends: 75 [2018-12-02 15:23:43,827 INFO L226 Difference]: Without dead ends: 64 [2018-12-02 15:23:43,828 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-12-02 15:23:43,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2018-12-02 15:23:43,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2018-12-02 15:23:43,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-12-02 15:23:43,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 77 transitions. [2018-12-02 15:23:43,836 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 77 transitions. Word has length 23 [2018-12-02 15:23:43,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:23:43,837 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 77 transitions. [2018-12-02 15:23:43,837 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 15:23:43,837 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 77 transitions. [2018-12-02 15:23:43,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 15:23:43,837 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:23:43,838 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:23:43,838 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:23:43,838 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:23:43,838 INFO L82 PathProgramCache]: Analyzing trace with hash 1869882521, now seen corresponding path program 1 times [2018-12-02 15:23:43,838 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 15:23:43,838 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/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 [2018-12-02 15:23:43,841 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:23:44,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:23:44,035 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 15:23:44,700 WARN L180 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-12-02 15:23:46,097 WARN L180 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-12-02 15:23:47,925 WARN L180 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-12-02 15:23:50,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:23:50,387 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 15:23:50,396 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 15:23:50,397 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 15:23:50,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 15:23:50,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 15:23:50,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 15:23:50,397 INFO L87 Difference]: Start difference. First operand 62 states and 77 transitions. Second operand 7 states. [2018-12-02 15:23:57,967 WARN L180 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 11 [2018-12-02 15:24:03,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:24:03,291 INFO L93 Difference]: Finished difference Result 69 states and 84 transitions. [2018-12-02 15:24:03,291 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 15:24:03,292 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-12-02 15:24:03,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:24:03,293 INFO L225 Difference]: With dead ends: 69 [2018-12-02 15:24:03,293 INFO L226 Difference]: Without dead ends: 62 [2018-12-02 15:24:03,293 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-12-02 15:24:03,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-12-02 15:24:03,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-12-02 15:24:03,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-12-02 15:24:03,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 76 transitions. [2018-12-02 15:24:03,298 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 76 transitions. Word has length 23 [2018-12-02 15:24:03,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:24:03,299 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 76 transitions. [2018-12-02 15:24:03,299 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 15:24:03,299 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 76 transitions. [2018-12-02 15:24:03,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 15:24:03,299 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:24:03,300 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:24:03,300 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:24:03,300 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:24:03,300 INFO L82 PathProgramCache]: Analyzing trace with hash 681739413, now seen corresponding path program 1 times [2018-12-02 15:24:03,300 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 15:24:03,301 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/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 [2018-12-02 15:24:03,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:24:03,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:24:03,373 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 15:24:03,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:24:03,484 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 15:24:03,497 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 15:24:03,497 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 15:24:03,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 15:24:03,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 15:24:03,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-12-02 15:24:03,497 INFO L87 Difference]: Start difference. First operand 62 states and 76 transitions. Second operand 8 states. [2018-12-02 15:24:09,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:24:09,038 INFO L93 Difference]: Finished difference Result 74 states and 87 transitions. [2018-12-02 15:24:09,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 15:24:09,039 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2018-12-02 15:24:09,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:24:09,040 INFO L225 Difference]: With dead ends: 74 [2018-12-02 15:24:09,040 INFO L226 Difference]: Without dead ends: 55 [2018-12-02 15:24:09,040 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-12-02 15:24:09,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-12-02 15:24:09,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-12-02 15:24:09,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-12-02 15:24:09,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 66 transitions. [2018-12-02 15:24:09,044 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 66 transitions. Word has length 25 [2018-12-02 15:24:09,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:24:09,045 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 66 transitions. [2018-12-02 15:24:09,045 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 15:24:09,045 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 66 transitions. [2018-12-02 15:24:09,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 15:24:09,045 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:24:09,046 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:24:09,046 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:24:09,046 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:24:09,046 INFO L82 PathProgramCache]: Analyzing trace with hash 485225908, now seen corresponding path program 1 times [2018-12-02 15:24:09,046 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 15:24:09,046 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/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 [2018-12-02 15:24:09,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:24:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:24:10,029 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 15:24:10,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:24:10,153 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 15:24:10,171 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 15:24:10,171 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 15:24:10,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 15:24:10,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 15:24:10,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-12-02 15:24:10,171 INFO L87 Difference]: Start difference. First operand 55 states and 66 transitions. Second operand 8 states. [2018-12-02 15:24:15,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:24:15,032 INFO L93 Difference]: Finished difference Result 65 states and 75 transitions. [2018-12-02 15:24:15,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-02 15:24:15,200 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2018-12-02 15:24:15,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:24:15,201 INFO L225 Difference]: With dead ends: 65 [2018-12-02 15:24:15,201 INFO L226 Difference]: Without dead ends: 54 [2018-12-02 15:24:15,201 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-12-02 15:24:15,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-12-02 15:24:15,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-12-02 15:24:15,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-12-02 15:24:15,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 64 transitions. [2018-12-02 15:24:15,205 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 64 transitions. Word has length 25 [2018-12-02 15:24:15,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:24:15,205 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 64 transitions. [2018-12-02 15:24:15,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 15:24:15,205 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2018-12-02 15:24:15,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-12-02 15:24:15,205 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 15:24:15,206 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 15:24:15,206 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 15:24:15,206 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 15:24:15,206 INFO L82 PathProgramCache]: Analyzing trace with hash 935117644, now seen corresponding path program 1 times [2018-12-02 15:24:15,206 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 15:24:15,206 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/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 [2018-12-02 15:24:15,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 15:24:16,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 15:24:16,288 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 15:24:16,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 15:24:16,437 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 15:24:16,456 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 15:24:16,457 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-02 15:24:16,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 15:24:16,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 15:24:16,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-12-02 15:24:16,457 INFO L87 Difference]: Start difference. First operand 54 states and 64 transitions. Second operand 9 states. [2018-12-02 15:24:19,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 15:24:19,059 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2018-12-02 15:24:19,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-02 15:24:19,060 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2018-12-02 15:24:19,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 15:24:19,061 INFO L225 Difference]: With dead ends: 54 [2018-12-02 15:24:19,061 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 15:24:19,061 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2018-12-02 15:24:19,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 15:24:19,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 15:24:19,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 15:24:19,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 15:24:19,062 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2018-12-02 15:24:19,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 15:24:19,062 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 15:24:19,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 15:24:19,062 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 15:24:19,062 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 15:24:19,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 15:24:20,369 WARN L180 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 15 [2018-12-02 15:24:20,377 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 13) no Hoare annotation was computed. [2018-12-02 15:24:20,378 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 13) the Hoare annotation is: true [2018-12-02 15:24:20,378 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 13) no Hoare annotation was computed. [2018-12-02 15:24:20,378 INFO L448 ceAbstractionStarter]: For program point L130-1(line 130) no Hoare annotation was computed. [2018-12-02 15:24:20,378 INFO L448 ceAbstractionStarter]: For program point L122(lines 122 159) no Hoare annotation was computed. [2018-12-02 15:24:20,378 INFO L448 ceAbstractionStarter]: For program point __ieee754_acosfFINAL(lines 93 160) no Hoare annotation was computed. [2018-12-02 15:24:20,378 INFO L448 ceAbstractionStarter]: For program point L110(lines 110 159) no Hoare annotation was computed. [2018-12-02 15:24:20,378 INFO L448 ceAbstractionStarter]: For program point L139-1(lines 139 143) no Hoare annotation was computed. [2018-12-02 15:24:20,378 INFO L444 ceAbstractionStarter]: At program point L139-2(lines 139 143) the Hoare annotation is: (and (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1) __ieee754_acosf_~ix~1) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))))) (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) (not (bvsgt __ieee754_acosf_~ix~1 (_ bv1065353216 32))) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1)))) [2018-12-02 15:24:20,378 INFO L448 ceAbstractionStarter]: For program point L102(lines 102 109) no Hoare annotation was computed. [2018-12-02 15:24:20,379 INFO L451 ceAbstractionStarter]: At program point __ieee754_acosfENTRY(lines 93 160) the Hoare annotation is: true [2018-12-02 15:24:20,379 INFO L448 ceAbstractionStarter]: For program point L144(lines 144 148) no Hoare annotation was computed. [2018-12-02 15:24:20,379 INFO L448 ceAbstractionStarter]: For program point L111(lines 111 112) no Hoare annotation was computed. [2018-12-02 15:24:20,379 INFO L448 ceAbstractionStarter]: For program point L144-1(lines 134 159) no Hoare annotation was computed. [2018-12-02 15:24:20,379 INFO L448 ceAbstractionStarter]: For program point L144-2(lines 144 148) no Hoare annotation was computed. [2018-12-02 15:24:20,379 INFO L448 ceAbstractionStarter]: For program point L107(lines 107 109) no Hoare annotation was computed. [2018-12-02 15:24:20,379 INFO L448 ceAbstractionStarter]: For program point L103(lines 103 106) no Hoare annotation was computed. [2018-12-02 15:24:20,379 INFO L448 ceAbstractionStarter]: For program point __ieee754_acosfEXIT(lines 93 160) no Hoare annotation was computed. [2018-12-02 15:24:20,379 INFO L444 ceAbstractionStarter]: At program point L137(line 137) the Hoare annotation is: (and (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (= (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1) __ieee754_acosf_~ix~1) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))))) (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) (not (bvsgt __ieee754_acosf_~ix~1 (_ bv1065353216 32))) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1)))) [2018-12-02 15:24:20,379 INFO L448 ceAbstractionStarter]: For program point L137-1(line 137) no Hoare annotation was computed. [2018-12-02 15:24:20,379 INFO L448 ceAbstractionStarter]: For program point L96-1(lines 96 100) no Hoare annotation was computed. [2018-12-02 15:24:20,379 INFO L444 ceAbstractionStarter]: At program point L96-2(lines 96 100) the Hoare annotation is: (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) [2018-12-02 15:24:20,380 INFO L448 ceAbstractionStarter]: For program point L96-3(lines 96 100) no Hoare annotation was computed. [2018-12-02 15:24:20,380 INFO L444 ceAbstractionStarter]: At program point L130(line 130) the Hoare annotation is: (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (let ((.cse0 (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~1))) (and (not (bvsgt .cse0 (_ bv1065353216 32))) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1))) (not (bvslt .cse0 (_ bv1056964608 32))) (not (= (bvadd .cse0 (_ bv3229614080 32)) (_ bv0 32)))))) [2018-12-02 15:24:20,380 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 15:24:20,380 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-02 15:24:20,380 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 15:24:20,380 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 15:24:20,380 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-02 15:24:20,380 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 15:24:20,380 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 15:24:20,380 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 162 183) the Hoare annotation is: true [2018-12-02 15:24:20,380 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 162 183) no Hoare annotation was computed. [2018-12-02 15:24:20,380 INFO L448 ceAbstractionStarter]: For program point L177(line 177) no Hoare annotation was computed. [2018-12-02 15:24:20,381 INFO L444 ceAbstractionStarter]: At program point L176(line 176) the Hoare annotation is: (and (exists ((__ieee754_acosf_~x (_ FloatingPoint 8 24))) (= (let ((.cse0 (fp.sub roundNearestTiesToEven __ieee754_acosf_~x __ieee754_acosf_~x))) (fp.div roundNearestTiesToEven .cse0 .cse0)) main_~res~0)) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (or (fp.lt main_~x~0 (fp.neg .cse1)) (fp.gt main_~x~0 .cse1)))) [2018-12-02 15:24:20,381 INFO L448 ceAbstractionStarter]: For program point L176-1(lines 176 179) no Hoare annotation was computed. [2018-12-02 15:24:20,381 INFO L444 ceAbstractionStarter]: At program point L173(line 173) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (or (fp.lt main_~x~0 (fp.neg .cse0)) (fp.gt main_~x~0 .cse0))) [2018-12-02 15:24:20,381 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 162 183) no Hoare annotation was computed. [2018-12-02 15:24:20,381 INFO L448 ceAbstractionStarter]: For program point L173-1(line 173) no Hoare annotation was computed. [2018-12-02 15:24:20,381 INFO L448 ceAbstractionStarter]: For program point L171(lines 171 180) no Hoare annotation was computed. [2018-12-02 15:24:20,381 INFO L448 ceAbstractionStarter]: For program point L171-2(lines 171 180) no Hoare annotation was computed. [2018-12-02 15:24:20,381 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2018-12-02 15:24:20,381 INFO L448 ceAbstractionStarter]: For program point L64(lines 64 73) no Hoare annotation was computed. [2018-12-02 15:24:20,381 INFO L448 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-12-02 15:24:20,381 INFO L451 ceAbstractionStarter]: At program point L53-2(lines 53 62) the Hoare annotation is: true [2018-12-02 15:24:20,382 INFO L448 ceAbstractionStarter]: For program point L53-3(lines 17 82) no Hoare annotation was computed. [2018-12-02 15:24:20,382 INFO L451 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 17 82) the Hoare annotation is: true [2018-12-02 15:24:20,382 INFO L448 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-12-02 15:24:20,382 INFO L448 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-12-02 15:24:20,382 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 17 82) no Hoare annotation was computed. [2018-12-02 15:24:20,382 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 72) no Hoare annotation was computed. [2018-12-02 15:24:20,382 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-12-02 15:24:20,382 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 17 82) no Hoare annotation was computed. [2018-12-02 15:24:20,382 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 42) no Hoare annotation was computed. [2018-12-02 15:24:20,382 INFO L448 ceAbstractionStarter]: For program point L38-2(lines 38 42) no Hoare annotation was computed. [2018-12-02 15:24:20,382 INFO L448 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-12-02 15:24:20,382 INFO L448 ceAbstractionStarter]: For program point L55(lines 55 59) no Hoare annotation was computed. [2018-12-02 15:24:20,382 INFO L448 ceAbstractionStarter]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2018-12-02 15:24:20,382 INFO L448 ceAbstractionStarter]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2018-12-02 15:24:20,382 INFO L451 ceAbstractionStarter]: At program point L22-2(lines 22 26) the Hoare annotation is: true [2018-12-02 15:24:20,383 INFO L448 ceAbstractionStarter]: For program point L22-3(lines 22 26) no Hoare annotation was computed. [2018-12-02 15:24:20,383 INFO L448 ceAbstractionStarter]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2018-12-02 15:24:20,383 INFO L451 ceAbstractionStarter]: At program point L76-2(lines 76 80) the Hoare annotation is: true [2018-12-02 15:24:20,383 INFO L448 ceAbstractionStarter]: For program point L76-3(lines 76 80) no Hoare annotation was computed. [2018-12-02 15:24:20,383 INFO L448 ceAbstractionStarter]: For program point L39-2(lines 39 40) no Hoare annotation was computed. [2018-12-02 15:24:20,383 INFO L451 ceAbstractionStarter]: At program point L39-3(lines 39 40) the Hoare annotation is: true [2018-12-02 15:24:20,383 INFO L448 ceAbstractionStarter]: For program point L68(lines 68 71) no Hoare annotation was computed. [2018-12-02 15:24:20,383 INFO L448 ceAbstractionStarter]: For program point L39-4(lines 39 40) no Hoare annotation was computed. [2018-12-02 15:24:20,390 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-12-02 15:24:20,391 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-12-02 15:24:20,391 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-12-02 15:24:20,391 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-12-02 15:24:20,392 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-12-02 15:24:20,392 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-12-02 15:24:20,392 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-12-02 15:24:20,392 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-12-02 15:24:20,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:24:20 BoogieIcfgContainer [2018-12-02 15:24:20,393 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 15:24:20,394 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 15:24:20,394 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 15:24:20,394 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 15:24:20,394 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:23:37" (3/4) ... [2018-12-02 15:24:20,396 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 15:24:20,400 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-12-02 15:24:20,400 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_acosf [2018-12-02 15:24:20,400 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 15:24:20,401 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 15:24:20,401 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-12-02 15:24:20,404 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2018-12-02 15:24:20,404 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-12-02 15:24:20,404 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-02 15:24:20,404 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-02 15:24:20,421 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-02 15:24:20,421 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists __ieee754_acosf_~hx~1 : bv32 :: ~bvand32(2147483647bv32, __ieee754_acosf_~hx~1) == ix && \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0])) && \old(x) == x) && !~bvsgt32(ix, 1065353216bv32)) && \old(x) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) [2018-12-02 15:24:20,439 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_19fc9981-baad-4f5f-91c4-ffcab75f1993/bin-2019/uautomizer/witness.graphml [2018-12-02 15:24:20,440 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 15:24:20,440 INFO L168 Benchmark]: Toolchain (without parser) took 52631.24 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 235.9 MB). Free memory was 944.7 MB in the beginning and 898.3 MB in the end (delta: 46.4 MB). Peak memory consumption was 282.3 MB. Max. memory is 11.5 GB. [2018-12-02 15:24:20,441 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 15:24:20,441 INFO L168 Benchmark]: CACSL2BoogieTranslator took 188.85 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-02 15:24:20,441 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.08 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 36.7 MB). Free memory was 928.6 MB in the beginning and 1.0 GB in the end (delta: -86.3 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2018-12-02 15:24:20,441 INFO L168 Benchmark]: Boogie Preprocessor took 50.79 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 199.2 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -206.9 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. [2018-12-02 15:24:20,441 INFO L168 Benchmark]: RCFGBuilder took 9486.51 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 51.0 MB). Peak memory consumption was 51.0 MB. Max. memory is 11.5 GB. [2018-12-02 15:24:20,441 INFO L168 Benchmark]: TraceAbstraction took 42830.92 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 898.3 MB in the end (delta: 262.4 MB). Peak memory consumption was 262.4 MB. Max. memory is 11.5 GB. [2018-12-02 15:24:20,442 INFO L168 Benchmark]: Witness Printer took 45.96 ms. Allocated memory is still 1.3 GB. Free memory is still 898.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 15:24:20,443 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 188.85 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.08 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 36.7 MB). Free memory was 928.6 MB in the beginning and 1.0 GB in the end (delta: -86.3 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.79 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 199.2 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -206.9 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 9486.51 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 51.0 MB). Peak memory consumption was 51.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 42830.92 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 898.3 MB in the end (delta: 262.4 MB). Peak memory consumption was 262.4 MB. Max. memory is 11.5 GB. * Witness Printer took 45.96 ms. Allocated memory is still 1.3 GB. Free memory is still 898.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 177]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 139]: Loop Invariant [2018-12-02 15:24:20,445 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-12-02 15:24:20,446 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-12-02 15:24:20,446 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-12-02 15:24:20,446 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-12-02 15:24:20,446 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-12-02 15:24:20,446 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-12-02 15:24:20,446 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-12-02 15:24:20,446 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] Derived loop invariant: (((\exists __ieee754_acosf_~hx~1 : bv32 :: ~bvand32(2147483647bv32, __ieee754_acosf_~hx~1) == ix && \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0])) && \old(x) == x) && !~bvsgt32(ix, 1065353216bv32)) && \old(x) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 68 locations, 1 error locations. SAFE Result, 42.7s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 31.9s AutomataDifference, 0.0s DeadEndRemovalTime, 1.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 400 SDtfs, 149 SDslu, 1507 SDs, 0 SdLazy, 158 SolverSat, 7 SolverUnsat, 10 SolverUnknown, 0 SolverNotchecked, 27.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 163 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 9.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred 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, 6 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 37 PreInvPairs, 50 NumberOfFragments, 149 HoareAnnotationTreeSize, 37 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 17 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 152 NumberOfCodeBlocks, 152 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 146 ConstructedInterpolants, 28 QuantifiedInterpolants, 22666 SizeOfPredicates, 19 NumberOfNonLiveVariables, 660 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...