./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0490a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0490a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/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 42a5ff50ef75a9bc2b11724463e26eddfdf3a733 ...................................................................................................................................................................................................................................................................................................................... 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_3d595d69-705d-41ab-b614-0d456ca62670/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0490a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/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 42a5ff50ef75a9bc2b11724463e26eddfdf3a733 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:17:46,630 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:17:46,632 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:17:46,641 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:17:46,641 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:17:46,642 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:17:46,642 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:17:46,644 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:17:46,645 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:17:46,646 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:17:46,647 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:17:46,647 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:17:46,647 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:17:46,648 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:17:46,649 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:17:46,650 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:17:46,650 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:17:46,651 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:17:46,653 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:17:46,654 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:17:46,655 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:17:46,656 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:17:46,658 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:17:46,658 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:17:46,658 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:17:46,659 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:17:46,659 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:17:46,660 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:17:46,660 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:17:46,661 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:17:46,661 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:17:46,662 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:17:46,662 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:17:46,662 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:17:46,663 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:17:46,663 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:17:46,663 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 12:17:46,673 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:17:46,673 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:17:46,674 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:17:46,674 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:17:46,674 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:17:46,675 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:17:46,675 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:17:46,675 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:17:46,675 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:17:46,675 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:17:46,675 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:17:46,675 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:17:46,675 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:17:46,675 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:17:46,675 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:17:46,676 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:17:46,676 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:17:46,676 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:17:46,676 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:17:46,676 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:17:46,676 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:17:46,676 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:17:46,676 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:17:46,676 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:17:46,676 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:17:46,676 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:17:46,676 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:17:46,677 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:17:46,677 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:17:46,677 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 12:17:46,677 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_3d595d69-705d-41ab-b614-0d456ca62670/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 -> 42a5ff50ef75a9bc2b11724463e26eddfdf3a733 [2018-11-28 12:17:46,704 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:17:46,711 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:17:46,713 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:17:46,714 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:17:46,714 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:17:46,714 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0490a_true-unreach-call.c [2018-11-28 12:17:46,752 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/bin-2019/uautomizer/data/1de391097/2ebf125d060e4e6b8f84e2696dd46003/FLAG8aa33b2b1 [2018-11-28 12:17:47,161 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:17:47,162 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/sv-benchmarks/c/float-newlib/float_req_bl_0490a_true-unreach-call.c [2018-11-28 12:17:47,166 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/bin-2019/uautomizer/data/1de391097/2ebf125d060e4e6b8f84e2696dd46003/FLAG8aa33b2b1 [2018-11-28 12:17:47,175 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/bin-2019/uautomizer/data/1de391097/2ebf125d060e4e6b8f84e2696dd46003 [2018-11-28 12:17:47,177 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:17:47,178 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:17:47,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:17:47,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:17:47,182 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:17:47,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:17:47" (1/1) ... [2018-11-28 12:17:47,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60b03df8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:17:47, skipping insertion in model container [2018-11-28 12:17:47,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:17:47" (1/1) ... [2018-11-28 12:17:47,189 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:17:47,205 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:17:47,327 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:17:47,330 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:17:47,358 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:17:47,413 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:17:47,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:17:47 WrapperNode [2018-11-28 12:17:47,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:17:47,414 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:17:47,414 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:17:47,414 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:17:47,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:17:47" (1/1) ... [2018-11-28 12:17:47,432 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:17:47" (1/1) ... [2018-11-28 12:17:47,439 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:17:47,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:17:47,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:17:47,439 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:17:47,448 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:17:47" (1/1) ... [2018-11-28 12:17:47,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:17:47" (1/1) ... [2018-11-28 12:17:47,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:17:47" (1/1) ... [2018-11-28 12:17:47,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:17:47" (1/1) ... [2018-11-28 12:17:47,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:17:47" (1/1) ... [2018-11-28 12:17:47,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:17:47" (1/1) ... [2018-11-28 12:17:47,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:17:47" (1/1) ... [2018-11-28 12:17:47,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:17:47,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:17:47,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:17:47,476 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:17:47,477 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:17:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:17:47,515 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-11-28 12:17:47,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-11-28 12:17:47,515 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:17:47,516 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:17:47,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 12:17:47,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 12:17:47,516 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-28 12:17:47,516 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-28 12:17:47,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:17:47,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:17:47,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 12:17:47,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 12:17:47,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:17:47,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:17:47,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 12:17:47,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 12:17:47,517 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-28 12:17:47,517 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-28 12:17:47,863 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:17:47,863 INFO L280 CfgBuilder]: Removed 12 assue(true) statements. [2018-11-28 12:17:47,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:17:47 BoogieIcfgContainer [2018-11-28 12:17:47,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:17:47,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:17:47,864 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:17:47,867 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:17:47,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:17:47" (1/3) ... [2018-11-28 12:17:47,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b68b0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:17:47, skipping insertion in model container [2018-11-28 12:17:47,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:17:47" (2/3) ... [2018-11-28 12:17:47,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b68b0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:17:47, skipping insertion in model container [2018-11-28 12:17:47,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:17:47" (3/3) ... [2018-11-28 12:17:47,869 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0490a_true-unreach-call.c [2018-11-28 12:17:47,876 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:17:47,881 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 12:17:47,892 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 12:17:47,914 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:17:47,914 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:17:47,914 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:17:47,914 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:17:47,914 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:17:47,915 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:17:47,915 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:17:47,915 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:17:47,915 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:17:47,929 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states. [2018-11-28 12:17:47,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 12:17:47,934 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:17:47,935 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] [2018-11-28 12:17:47,936 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:17:47,940 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:17:47,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1524271188, now seen corresponding path program 1 times [2018-11-28 12:17:47,942 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:17:47,942 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:17:47,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:17:47,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:17:47,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:17:48,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:17:48,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:17:48,056 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:17:48,056 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:17:48,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 12:17:48,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 12:17:48,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 12:17:48,076 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 2 states. [2018-11-28 12:17:48,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:17:48,096 INFO L93 Difference]: Finished difference Result 126 states and 188 transitions. [2018-11-28 12:17:48,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 12:17:48,096 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-28 12:17:48,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:17:48,103 INFO L225 Difference]: With dead ends: 126 [2018-11-28 12:17:48,103 INFO L226 Difference]: Without dead ends: 63 [2018-11-28 12:17:48,107 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 [2018-11-28 12:17:48,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-11-28 12:17:48,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-11-28 12:17:48,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-11-28 12:17:48,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 80 transitions. [2018-11-28 12:17:48,141 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 80 transitions. Word has length 22 [2018-11-28 12:17:48,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:17:48,141 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 80 transitions. [2018-11-28 12:17:48,142 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 12:17:48,142 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2018-11-28 12:17:48,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 12:17:48,144 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:17:48,144 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] [2018-11-28 12:17:48,144 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:17:48,145 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:17:48,145 INFO L82 PathProgramCache]: Analyzing trace with hash -199733833, now seen corresponding path program 1 times [2018-11-28 12:17:48,145 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:17:48,145 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:17:48,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:17:48,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:17:48,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:17:48,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:17:48,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:17:48,220 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 12:17:48,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:17:48 BoogieIcfgContainer [2018-11-28 12:17:48,250 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:17:48,250 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:17:48,250 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:17:48,250 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:17:48,251 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:17:47" (3/4) ... [2018-11-28 12:17:48,253 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 12:17:48,253 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:17:48,254 INFO L168 Benchmark]: Toolchain (without parser) took 1076.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 953.3 MB in the beginning and 1.0 GB in the end (delta: -96.6 MB). Peak memory consumption was 29.3 MB. Max. memory is 11.5 GB. [2018-11-28 12:17:48,255 INFO L168 Benchmark]: CDTParser took 0.11 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. [2018-11-28 12:17:48,255 INFO L168 Benchmark]: CACSL2BoogieTranslator took 234.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -172.8 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. [2018-11-28 12:17:48,256 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:17:48,256 INFO L168 Benchmark]: Boogie Preprocessor took 36.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:17:48,257 INFO L168 Benchmark]: RCFGBuilder took 387.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:17:48,257 INFO L168 Benchmark]: TraceAbstraction took 385.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. [2018-11-28 12:17:48,257 INFO L168 Benchmark]: Witness Printer took 3.25 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:17:48,260 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 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 234.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -172.8 MB). Peak memory consumption was 27.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 387.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 385.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. * Witness Printer took 3.25 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 173]: 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, overapproximation of someBinaryArithmeticFLOAToperation at line 168. 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)=6442450961, \old(one_sqrt)=6442450951, \old(pi)=6442450950, \old(pi)=6442450954, \old(pi)=6442450964, \old(pS0_acos)=6442450944, \old(pS1_acos)=6442450962, \old(pS2_acos)=6442450963, \old(pS3_acos)=6442450948, \old(pS4_acos)=6442450953, \old(pS5_acos)=6442450965, \old(qS1_acos)=6442450947, \old(qS2_acos)=6442450955, \old(qS3_acos)=6442450959, \old(qS4_acos)=6442450949, \old(tiny_sqrt)=6442450960, 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] [L168] float x = 1.0f / 0.0f; 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] [L169] CALL, EXPR __ieee754_acosf(x) VAL [\old(x)=6442450957, 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] [L94] float z, p, q, r, w, s, c, df; [L95] __int32_t hx, ix; VAL [\old(x)=6442450957, 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=6442450957] [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)=6442450957, hx=2147483647, 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=6442450957] [L102] COND TRUE ix == 0x3f800000 VAL [\old(x)=6442450957, 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=6442450957] [L103] COND TRUE hx > 0 [L104] return 0.0; VAL [\old(x)=6442450957, \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=6442450957] [L169] RET, EXPR __ieee754_acosf(x) VAL [__ieee754_acosf(x)=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=6442450957] [L169] float res = __ieee754_acosf(x); [L172] CALL, EXPR isnan_float(res) VAL [\old(x)=0, 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] [L13] return x != x; VAL [\old(x)=0, \result=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=0] [L172] RET, EXPR isnan_float(res) VAL [isnan_float(res)=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, res=0, tiny_sqrt=1/1000000000000000000000000000000, x=6442450957] [L172] COND TRUE !isnan_float(res) [L173] __VERIFIER_error() VAL [one_acos=1, one_sqrt=1, pi=15707962513/5000000000, pi=75497894159/1000000000000000000, pi=15707962513/10000000000, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, res=0, tiny_sqrt=1/1000000000000000000000000000000, x=6442450957] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 67 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 84 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=67occurred 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, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 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 0.1.23-0cd3be1 [2018-11-28 12:17:49,761 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:17:49,762 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:17:49,769 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:17:49,770 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:17:49,770 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:17:49,771 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:17:49,772 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:17:49,774 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:17:49,774 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:17:49,775 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:17:49,775 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:17:49,776 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:17:49,777 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:17:49,778 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:17:49,779 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:17:49,779 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:17:49,781 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:17:49,783 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:17:49,784 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:17:49,785 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:17:49,786 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:17:49,788 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:17:49,788 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:17:49,788 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:17:49,789 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:17:49,790 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:17:49,790 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:17:49,791 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:17:49,792 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:17:49,792 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:17:49,792 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:17:49,793 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:17:49,794 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:17:49,794 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:17:49,795 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:17:49,795 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 12:17:49,807 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:17:49,807 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:17:49,808 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:17:49,808 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:17:49,808 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:17:49,809 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:17:49,809 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:17:49,809 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:17:49,810 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:17:49,810 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:17:49,810 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:17:49,810 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:17:49,810 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:17:49,810 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:17:49,810 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 12:17:49,810 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 12:17:49,810 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:17:49,811 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:17:49,811 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:17:49,811 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:17:49,811 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:17:49,811 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:17:49,811 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:17:49,811 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:17:49,812 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:17:49,812 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:17:49,812 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:17:49,812 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:17:49,812 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 12:17:49,812 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:17:49,812 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 12:17:49,812 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 12:17:49,812 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_3d595d69-705d-41ab-b614-0d456ca62670/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 -> 42a5ff50ef75a9bc2b11724463e26eddfdf3a733 [2018-11-28 12:17:49,840 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:17:49,849 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:17:49,852 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:17:49,853 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:17:49,853 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:17:49,853 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0490a_true-unreach-call.c [2018-11-28 12:17:49,892 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/bin-2019/uautomizer/data/a3cfd6e33/d62f7c3c9a0348cc83381b5daa98580f/FLAG1bd679c85 [2018-11-28 12:17:50,236 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:17:50,237 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/sv-benchmarks/c/float-newlib/float_req_bl_0490a_true-unreach-call.c [2018-11-28 12:17:50,241 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/bin-2019/uautomizer/data/a3cfd6e33/d62f7c3c9a0348cc83381b5daa98580f/FLAG1bd679c85 [2018-11-28 12:17:50,656 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/bin-2019/uautomizer/data/a3cfd6e33/d62f7c3c9a0348cc83381b5daa98580f [2018-11-28 12:17:50,660 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:17:50,661 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:17:50,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:17:50,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:17:50,666 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:17:50,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:17:50" (1/1) ... [2018-11-28 12:17:50,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d2fc0f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:17:50, skipping insertion in model container [2018-11-28 12:17:50,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:17:50" (1/1) ... [2018-11-28 12:17:50,677 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:17:50,700 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:17:50,850 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:17:50,854 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:17:50,892 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:17:50,910 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:17:50,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:17:50 WrapperNode [2018-11-28 12:17:50,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:17:50,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:17:50,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:17:50,912 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:17:50,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:17:50" (1/1) ... [2018-11-28 12:17:50,931 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:17:50" (1/1) ... [2018-11-28 12:17:50,935 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:17:50,936 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:17:50,936 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:17:50,936 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:17:50,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:17:50" (1/1) ... [2018-11-28 12:17:50,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:17:50" (1/1) ... [2018-11-28 12:17:50,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:17:50" (1/1) ... [2018-11-28 12:17:50,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:17:50" (1/1) ... [2018-11-28 12:17:51,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:17:50" (1/1) ... [2018-11-28 12:17:51,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:17:50" (1/1) ... [2018-11-28 12:17:51,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:17:50" (1/1) ... [2018-11-28 12:17:51,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:17:51,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:17:51,014 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:17:51,014 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:17:51,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:17:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:17:51,050 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_acosf [2018-11-28 12:17:51,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_acosf [2018-11-28 12:17:51,050 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:17:51,050 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:17:51,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-28 12:17:51,050 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-28 12:17:51,050 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-28 12:17:51,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:17:51,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:17:51,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 12:17:51,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 12:17:51,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:17:51,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:17:51,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-28 12:17:51,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 12:17:51,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 12:17:51,051 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-28 12:17:51,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-28 12:17:53,410 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:18:00,253 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:18:00,339 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 12:18:01,042 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:18:01,043 INFO L280 CfgBuilder]: Removed 12 assue(true) statements. [2018-11-28 12:18:01,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:18:01 BoogieIcfgContainer [2018-11-28 12:18:01,043 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:18:01,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:18:01,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:18:01,047 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:18:01,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:17:50" (1/3) ... [2018-11-28 12:18:01,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f4887c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:18:01, skipping insertion in model container [2018-11-28 12:18:01,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:17:50" (2/3) ... [2018-11-28 12:18:01,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f4887c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:18:01, skipping insertion in model container [2018-11-28 12:18:01,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:18:01" (3/3) ... [2018-11-28 12:18:01,050 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0490a_true-unreach-call.c [2018-11-28 12:18:01,060 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:18:01,067 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 12:18:01,081 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 12:18:01,101 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:18:01,102 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:18:01,102 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:18:01,102 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:18:01,102 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:18:01,102 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:18:01,102 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:18:01,102 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:18:01,102 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:18:01,113 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states. [2018-11-28 12:18:01,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 12:18:01,117 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:18:01,117 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:18:01,119 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:18:01,123 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:18:01,123 INFO L82 PathProgramCache]: Analyzing trace with hash -709161853, now seen corresponding path program 1 times [2018-11-28 12:18:01,126 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:18:01,126 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-28 12:18:01,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:18:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:18:01,200 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:18:01,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:18:01,215 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:18:01,230 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:18:01,231 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:18:01,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 12:18:01,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 12:18:01,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 12:18:01,243 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 2 states. [2018-11-28 12:18:01,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:18:01,261 INFO L93 Difference]: Finished difference Result 124 states and 186 transitions. [2018-11-28 12:18:01,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 12:18:01,262 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-28 12:18:01,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:18:01,272 INFO L225 Difference]: With dead ends: 124 [2018-11-28 12:18:01,272 INFO L226 Difference]: Without dead ends: 62 [2018-11-28 12:18:01,275 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 12:18:01,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-11-28 12:18:01,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-11-28 12:18:01,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-11-28 12:18:01,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 79 transitions. [2018-11-28 12:18:01,313 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 79 transitions. Word has length 21 [2018-11-28 12:18:01,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:18:01,313 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 79 transitions. [2018-11-28 12:18:01,313 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 12:18:01,313 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 79 transitions. [2018-11-28 12:18:01,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 12:18:01,314 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:18:01,314 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] [2018-11-28 12:18:01,315 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:18:01,315 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:18:01,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1128526692, now seen corresponding path program 1 times [2018-11-28 12:18:01,316 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:18:01,316 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-28 12:18:01,323 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:18:01,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:18:01,419 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:18:01,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:18:01,557 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:18:01,571 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:18:01,572 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 12:18:01,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:18:01,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:18:01,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:18:01,574 INFO L87 Difference]: Start difference. First operand 62 states and 79 transitions. Second operand 7 states. [2018-11-28 12:18:07,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:18:07,697 INFO L93 Difference]: Finished difference Result 74 states and 90 transitions. [2018-11-28 12:18:07,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 12:18:07,698 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-11-28 12:18:07,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:18:07,700 INFO L225 Difference]: With dead ends: 74 [2018-11-28 12:18:07,701 INFO L226 Difference]: Without dead ends: 63 [2018-11-28 12:18:07,701 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:18:07,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-11-28 12:18:07,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2018-11-28 12:18:07,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-11-28 12:18:07,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 76 transitions. [2018-11-28 12:18:07,711 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 76 transitions. Word has length 22 [2018-11-28 12:18:07,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:18:07,711 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 76 transitions. [2018-11-28 12:18:07,711 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:18:07,712 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 76 transitions. [2018-11-28 12:18:07,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 12:18:07,712 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:18:07,713 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] [2018-11-28 12:18:07,713 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:18:07,713 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:18:07,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1789050876, now seen corresponding path program 1 times [2018-11-28 12:18:07,714 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:18:07,714 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-28 12:18:07,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:18:07,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:18:07,929 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:18:10,510 WARN L180 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-11-28 12:18:12,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:18:12,987 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:18:12,997 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:18:12,997 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 12:18:12,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 12:18:12,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 12:18:12,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:18:12,998 INFO L87 Difference]: Start difference. First operand 61 states and 76 transitions. Second operand 9 states. [2018-11-28 12:18:17,170 WARN L180 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 9 [2018-11-28 12:18:31,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:18:31,487 INFO L93 Difference]: Finished difference Result 70 states and 85 transitions. [2018-11-28 12:18:31,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 12:18:31,487 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-11-28 12:18:31,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:18:31,489 INFO L225 Difference]: With dead ends: 70 [2018-11-28 12:18:31,489 INFO L226 Difference]: Without dead ends: 63 [2018-11-28 12:18:31,490 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-28 12:18:31,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-11-28 12:18:31,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2018-11-28 12:18:31,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-11-28 12:18:31,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 75 transitions. [2018-11-28 12:18:31,497 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 75 transitions. Word has length 22 [2018-11-28 12:18:31,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:18:31,498 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 75 transitions. [2018-11-28 12:18:31,498 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 12:18:31,498 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 75 transitions. [2018-11-28 12:18:31,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 12:18:31,499 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:18:31,499 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] [2018-11-28 12:18:31,499 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:18:31,499 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:18:31,500 INFO L82 PathProgramCache]: Analyzing trace with hash -752448456, now seen corresponding path program 1 times [2018-11-28 12:18:31,500 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:18:31,500 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/bin-2019/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-28 12:18:31,503 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:18:31,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:18:31,593 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:18:31,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:18:31,677 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:18:31,686 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:18:31,687 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 12:18:31,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:18:31,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:18:31,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:18:31,688 INFO L87 Difference]: Start difference. First operand 61 states and 75 transitions. Second operand 7 states. [2018-11-28 12:18:37,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:18:37,485 INFO L93 Difference]: Finished difference Result 71 states and 84 transitions. [2018-11-28 12:18:37,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 12:18:37,486 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-28 12:18:37,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:18:37,488 INFO L225 Difference]: With dead ends: 71 [2018-11-28 12:18:37,488 INFO L226 Difference]: Without dead ends: 54 [2018-11-28 12:18:37,488 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:18:37,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-11-28 12:18:37,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-11-28 12:18:37,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-11-28 12:18:37,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2018-11-28 12:18:37,493 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 24 [2018-11-28 12:18:37,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:18:37,493 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2018-11-28 12:18:37,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:18:37,494 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2018-11-28 12:18:37,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 12:18:37,494 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:18:37,494 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] [2018-11-28 12:18:37,495 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:18:37,495 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:18:37,495 INFO L82 PathProgramCache]: Analyzing trace with hash -948961961, now seen corresponding path program 1 times [2018-11-28 12:18:37,495 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:18:37,495 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/bin-2019/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-28 12:18:37,499 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:18:38,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:18:38,627 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:18:38,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:18:38,712 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:18:38,733 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:18:38,733 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 12:18:38,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:18:38,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:18:38,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:18:38,734 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand 7 states. [2018-11-28 12:18:43,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:18:43,733 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2018-11-28 12:18:43,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:18:43,906 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-28 12:18:43,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:18:43,907 INFO L225 Difference]: With dead ends: 64 [2018-11-28 12:18:43,907 INFO L226 Difference]: Without dead ends: 53 [2018-11-28 12:18:43,907 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:18:43,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-11-28 12:18:43,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-11-28 12:18:43,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-11-28 12:18:43,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 63 transitions. [2018-11-28 12:18:43,911 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 63 transitions. Word has length 24 [2018-11-28 12:18:43,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:18:43,911 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 63 transitions. [2018-11-28 12:18:43,911 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:18:43,911 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2018-11-28 12:18:43,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-28 12:18:43,912 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:18:43,912 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:18:43,912 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:18:43,913 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:18:43,913 INFO L82 PathProgramCache]: Analyzing trace with hash 489021777, now seen corresponding path program 1 times [2018-11-28 12:18:43,913 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:18:43,913 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/bin-2019/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-28 12:18:43,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:18:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:18:45,133 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:18:45,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:18:45,225 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:18:45,247 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:18:45,247 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 12:18:45,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:18:45,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:18:45,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:18:45,248 INFO L87 Difference]: Start difference. First operand 53 states and 63 transitions. Second operand 7 states. [2018-11-28 12:18:47,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:18:47,803 INFO L93 Difference]: Finished difference Result 53 states and 63 transitions. [2018-11-28 12:18:47,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:18:47,804 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-11-28 12:18:47,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:18:47,805 INFO L225 Difference]: With dead ends: 53 [2018-11-28 12:18:47,805 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 12:18:47,805 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:18:47,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 12:18:47,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 12:18:47,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 12:18:47,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 12:18:47,806 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-11-28 12:18:47,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:18:47,807 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:18:47,807 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:18:47,807 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 12:18:47,807 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 12:18:47,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 12:18:47,956 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 13) no Hoare annotation was computed. [2018-11-28 12:18:47,956 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 13) the Hoare annotation is: true [2018-11-28 12:18:47,957 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 13) no Hoare annotation was computed. [2018-11-28 12:18:47,957 INFO L448 ceAbstractionStarter]: For program point L130-1(line 130) no Hoare annotation was computed. [2018-11-28 12:18:47,957 INFO L448 ceAbstractionStarter]: For program point L122(lines 122 159) no Hoare annotation was computed. [2018-11-28 12:18:47,957 INFO L448 ceAbstractionStarter]: For program point __ieee754_acosfFINAL(lines 93 160) no Hoare annotation was computed. [2018-11-28 12:18:47,957 INFO L448 ceAbstractionStarter]: For program point L110(lines 110 159) no Hoare annotation was computed. [2018-11-28 12:18:47,957 INFO L448 ceAbstractionStarter]: For program point L139-1(lines 139 143) no Hoare annotation was computed. [2018-11-28 12:18:47,957 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))))) (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~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))))) (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1)))) [2018-11-28 12:18:47,957 INFO L448 ceAbstractionStarter]: For program point L102(lines 102 109) no Hoare annotation was computed. [2018-11-28 12:18:47,957 INFO L451 ceAbstractionStarter]: At program point __ieee754_acosfENTRY(lines 93 160) the Hoare annotation is: true [2018-11-28 12:18:47,958 INFO L448 ceAbstractionStarter]: For program point L144(lines 144 148) no Hoare annotation was computed. [2018-11-28 12:18:47,958 INFO L448 ceAbstractionStarter]: For program point L111(lines 111 112) no Hoare annotation was computed. [2018-11-28 12:18:47,958 INFO L448 ceAbstractionStarter]: For program point L144-1(lines 134 159) no Hoare annotation was computed. [2018-11-28 12:18:47,958 INFO L448 ceAbstractionStarter]: For program point L144-2(lines 144 148) no Hoare annotation was computed. [2018-11-28 12:18:47,958 INFO L448 ceAbstractionStarter]: For program point L107(lines 107 109) no Hoare annotation was computed. [2018-11-28 12:18:47,958 INFO L448 ceAbstractionStarter]: For program point L103(lines 103 106) no Hoare annotation was computed. [2018-11-28 12:18:47,958 INFO L448 ceAbstractionStarter]: For program point __ieee754_acosfEXIT(lines 93 160) no Hoare annotation was computed. [2018-11-28 12:18:47,958 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))))) (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~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))))) (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) (= |__ieee754_acosf_#in~x| (fp ((_ extract 31 31) __ieee754_acosf_~hx~1) ((_ extract 30 23) __ieee754_acosf_~hx~1) ((_ extract 22 0) __ieee754_acosf_~hx~1)))) [2018-11-28 12:18:47,958 INFO L448 ceAbstractionStarter]: For program point L137-1(line 137) no Hoare annotation was computed. [2018-11-28 12:18:47,958 INFO L448 ceAbstractionStarter]: For program point L96-1(lines 96 100) no Hoare annotation was computed. [2018-11-28 12:18:47,958 INFO L444 ceAbstractionStarter]: At program point L96-2(lines 96 100) the Hoare annotation is: (= |__ieee754_acosf_#in~x| __ieee754_acosf_~x) [2018-11-28 12:18:47,959 INFO L448 ceAbstractionStarter]: For program point L96-3(lines 96 100) no Hoare annotation was computed. [2018-11-28 12:18:47,959 INFO L444 ceAbstractionStarter]: At program point L130(line 130) the Hoare annotation is: (exists ((__ieee754_acosf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_acosf_~hx~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))))) [2018-11-28 12:18:47,959 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 12:18:47,959 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 12:18:47,959 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:18:47,959 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:18:47,959 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 12:18:47,959 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 12:18:47,959 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 12:18:47,959 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 162 178) the Hoare annotation is: true [2018-11-28 12:18:47,959 INFO L448 ceAbstractionStarter]: For program point L173(line 173) no Hoare annotation was computed. [2018-11-28 12:18:47,959 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 162 178) no Hoare annotation was computed. [2018-11-28 12:18:47,960 INFO L444 ceAbstractionStarter]: At program point L172(line 172) the Hoare annotation is: (let ((.cse1 (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24)))) (and (= main_~res~0 (let ((.cse0 (fp.sub roundNearestTiesToEven .cse1 .cse1))) (fp.div roundNearestTiesToEven .cse0 .cse0))) (= main_~x~0 .cse1))) [2018-11-28 12:18:47,960 INFO L448 ceAbstractionStarter]: For program point L172-1(lines 172 175) no Hoare annotation was computed. [2018-11-28 12:18:47,960 INFO L444 ceAbstractionStarter]: At program point L169(line 169) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24))) [2018-11-28 12:18:47,960 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 162 178) no Hoare annotation was computed. [2018-11-28 12:18:47,960 INFO L448 ceAbstractionStarter]: For program point L169-1(line 169) no Hoare annotation was computed. [2018-11-28 12:18:47,960 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 173) no Hoare annotation was computed. [2018-11-28 12:18:47,960 INFO L448 ceAbstractionStarter]: For program point L64(lines 64 73) no Hoare annotation was computed. [2018-11-28 12:18:47,960 INFO L448 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-11-28 12:18:47,960 INFO L451 ceAbstractionStarter]: At program point L53-2(lines 53 62) the Hoare annotation is: true [2018-11-28 12:18:47,961 INFO L448 ceAbstractionStarter]: For program point L53-3(lines 17 82) no Hoare annotation was computed. [2018-11-28 12:18:47,961 INFO L451 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 17 82) the Hoare annotation is: true [2018-11-28 12:18:47,961 INFO L448 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-11-28 12:18:47,961 INFO L448 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-11-28 12:18:47,961 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 17 82) no Hoare annotation was computed. [2018-11-28 12:18:47,961 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 72) no Hoare annotation was computed. [2018-11-28 12:18:47,961 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-11-28 12:18:47,961 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 17 82) no Hoare annotation was computed. [2018-11-28 12:18:47,961 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 42) no Hoare annotation was computed. [2018-11-28 12:18:47,961 INFO L448 ceAbstractionStarter]: For program point L38-2(lines 38 42) no Hoare annotation was computed. [2018-11-28 12:18:47,961 INFO L448 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-11-28 12:18:47,961 INFO L448 ceAbstractionStarter]: For program point L55(lines 55 59) no Hoare annotation was computed. [2018-11-28 12:18:47,961 INFO L448 ceAbstractionStarter]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2018-11-28 12:18:47,962 INFO L448 ceAbstractionStarter]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2018-11-28 12:18:47,962 INFO L451 ceAbstractionStarter]: At program point L22-2(lines 22 26) the Hoare annotation is: true [2018-11-28 12:18:47,962 INFO L448 ceAbstractionStarter]: For program point L22-3(lines 22 26) no Hoare annotation was computed. [2018-11-28 12:18:47,962 INFO L448 ceAbstractionStarter]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2018-11-28 12:18:47,962 INFO L451 ceAbstractionStarter]: At program point L76-2(lines 76 80) the Hoare annotation is: true [2018-11-28 12:18:47,962 INFO L448 ceAbstractionStarter]: For program point L76-3(lines 76 80) no Hoare annotation was computed. [2018-11-28 12:18:47,962 INFO L448 ceAbstractionStarter]: For program point L39-2(lines 39 40) no Hoare annotation was computed. [2018-11-28 12:18:47,962 INFO L451 ceAbstractionStarter]: At program point L39-3(lines 39 40) the Hoare annotation is: true [2018-11-28 12:18:47,962 INFO L448 ceAbstractionStarter]: For program point L68(lines 68 71) no Hoare annotation was computed. [2018-11-28 12:18:47,962 INFO L448 ceAbstractionStarter]: For program point L39-4(lines 39 40) no Hoare annotation was computed. [2018-11-28 12:18:47,972 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 12:18:47,973 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 12:18:47,973 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 12:18:47,973 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 12:18:47,973 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 12:18:47,973 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 12:18:47,973 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 12:18:47,974 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 12:18:47,974 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 12:18:47,974 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 12:18:47,975 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 12:18:47,975 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 12:18:47,975 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 12:18:47,975 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 12:18:47,975 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 12:18:47,975 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 12:18:47,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:18:47 BoogieIcfgContainer [2018-11-28 12:18:47,977 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:18:47,977 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:18:47,977 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:18:47,978 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:18:47,978 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:18:01" (3/4) ... [2018-11-28 12:18:47,981 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 12:18:47,986 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-28 12:18:47,986 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_acosf [2018-11-28 12:18:47,986 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 12:18:47,986 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 12:18:47,986 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-11-28 12:18:47,991 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2018-11-28 12:18:47,992 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-11-28 12:18:47,992 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 12:18:47,992 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 12:18:48,012 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 12:18:48,013 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])) && (\exists __ieee754_acosf_~hx~1 : bv32 :: !~bvsgt32(~bvand32(2147483647bv32, __ieee754_acosf_~hx~1), 1065353216bv32) && \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0]))) && \old(x) == x) && \old(x) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) [2018-11-28 12:18:48,042 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3d595d69-705d-41ab-b614-0d456ca62670/bin-2019/uautomizer/witness.graphml [2018-11-28 12:18:48,042 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:18:48,043 INFO L168 Benchmark]: Toolchain (without parser) took 57382.30 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 948.7 MB in the beginning and 814.1 MB in the end (delta: 134.6 MB). Peak memory consumption was 230.0 MB. Max. memory is 11.5 GB. [2018-11-28 12:18:48,043 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:18:48,043 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.11 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 932.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 12:18:48,043 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.93 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:18:48,044 INFO L168 Benchmark]: Boogie Preprocessor took 78.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -156.4 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2018-11-28 12:18:48,044 INFO L168 Benchmark]: RCFGBuilder took 10029.14 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: 38.2 MB). Peak memory consumption was 38.2 MB. Max. memory is 11.5 GB. [2018-11-28 12:18:48,044 INFO L168 Benchmark]: TraceAbstraction took 46933.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 820.9 MB in the end (delta: 224.6 MB). Peak memory consumption was 224.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:18:48,044 INFO L168 Benchmark]: Witness Printer took 64.51 ms. Allocated memory is still 1.1 GB. Free memory was 820.9 MB in the beginning and 814.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:18:48,047 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 249.11 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 932.6 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 23.93 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 78.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.4 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -156.4 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 10029.14 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: 38.2 MB). Peak memory consumption was 38.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 46933.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 820.9 MB in the end (delta: 224.6 MB). Peak memory consumption was 224.6 MB. Max. memory is 11.5 GB. * Witness Printer took 64.51 ms. Allocated memory is still 1.1 GB. Free memory was 820.9 MB in the beginning and 814.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 173]: 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 [2018-11-28 12:18:48,051 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 12:18:48,051 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 12:18:48,051 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 12:18:48,051 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 12:18:48,051 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 12:18:48,051 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 12:18:48,052 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 12:18:48,052 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 12:18:48,052 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 12:18:48,052 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 12:18:48,052 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 12:18:48,052 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 12:18:48,052 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 12:18:48,053 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 12:18:48,053 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_acosf_~hx~1,QUANTIFIED] [2018-11-28 12:18:48,053 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])) && (\exists __ieee754_acosf_~hx~1 : bv32 :: !~bvsgt32(~bvand32(2147483647bv32, __ieee754_acosf_~hx~1), 1065353216bv32) && \old(x) == ~fp~LONGDOUBLE(__ieee754_acosf_~hx~1[31:31], __ieee754_acosf_~hx~1[30:23], __ieee754_acosf_~hx~1[22:0]))) && \old(x) == x) && \old(x) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 66 locations, 1 error locations. SAFE Result, 46.8s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 38.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 386 SDtfs, 163 SDslu, 1508 SDs, 0 SdLazy, 174 SolverSat, 10 SolverUnsat, 11 SolverUnknown, 0 SolverNotchecked, 30.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 156 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 10.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred 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, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 37 PreInvPairs, 50 NumberOfFragments, 172 HoareAnnotationTreeSize, 37 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 17 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 146 NumberOfCodeBlocks, 146 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 140 ConstructedInterpolants, 24 QuantifiedInterpolants, 18500 SizeOfPredicates, 20 NumberOfNonLiveVariables, 654 ConjunctsInSsa, 44 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! Received shutdown request...