./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0250a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_52073c3a-afc3-45ce-b972-77a5371edae1/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_52073c3a-afc3-45ce-b972-77a5371edae1/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_52073c3a-afc3-45ce-b972-77a5371edae1/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_52073c3a-afc3-45ce-b972-77a5371edae1/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0250a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_52073c3a-afc3-45ce-b972-77a5371edae1/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_52073c3a-afc3-45ce-b972-77a5371edae1/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 78ea74dfa7532b5891dcf798c387cbc67437d79b ............................................................................................................................................................................................................................................................................................................................ 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_52073c3a-afc3-45ce-b972-77a5371edae1/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_52073c3a-afc3-45ce-b972-77a5371edae1/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_52073c3a-afc3-45ce-b972-77a5371edae1/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_52073c3a-afc3-45ce-b972-77a5371edae1/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0250a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_52073c3a-afc3-45ce-b972-77a5371edae1/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_52073c3a-afc3-45ce-b972-77a5371edae1/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 78ea74dfa7532b5891dcf798c387cbc67437d79b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 01:24:36,739 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 01:24:36,740 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 01:24:36,746 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 01:24:36,746 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 01:24:36,747 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 01:24:36,748 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 01:24:36,748 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 01:24:36,749 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 01:24:36,749 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 01:24:36,750 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 01:24:36,750 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 01:24:36,750 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 01:24:36,751 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 01:24:36,751 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 01:24:36,752 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 01:24:36,752 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 01:24:36,753 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 01:24:36,754 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 01:24:36,755 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 01:24:36,755 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 01:24:36,756 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 01:24:36,757 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 01:24:36,757 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 01:24:36,757 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 01:24:36,757 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 01:24:36,758 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 01:24:36,758 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 01:24:36,759 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 01:24:36,759 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 01:24:36,759 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 01:24:36,760 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 01:24:36,760 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 01:24:36,760 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 01:24:36,760 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 01:24:36,761 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 01:24:36,761 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_52073c3a-afc3-45ce-b972-77a5371edae1/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-09 01:24:36,768 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 01:24:36,768 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 01:24:36,768 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 01:24:36,768 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 01:24:36,769 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 01:24:36,769 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 01:24:36,769 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 01:24:36,769 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 01:24:36,769 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 01:24:36,769 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 01:24:36,769 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 01:24:36,769 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 01:24:36,770 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 01:24:36,770 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 01:24:36,770 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 01:24:36,770 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 01:24:36,770 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 01:24:36,770 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 01:24:36,770 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 01:24:36,770 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 01:24:36,770 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 01:24:36,770 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 01:24:36,770 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 01:24:36,771 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 01:24:36,771 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 01:24:36,771 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 01:24:36,771 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 01:24:36,771 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 01:24:36,771 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 01:24:36,771 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 01:24:36,771 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_52073c3a-afc3-45ce-b972-77a5371edae1/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 -> 78ea74dfa7532b5891dcf798c387cbc67437d79b [2018-12-09 01:24:36,788 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 01:24:36,795 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 01:24:36,797 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 01:24:36,798 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 01:24:36,798 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 01:24:36,799 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_52073c3a-afc3-45ce-b972-77a5371edae1/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0250a_true-unreach-call.c [2018-12-09 01:24:36,832 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_52073c3a-afc3-45ce-b972-77a5371edae1/bin-2019/uautomizer/data/27964b9c2/82ffb553f4af4110bf767711c3cb6ece/FLAGdcb9ca11c [2018-12-09 01:24:37,179 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 01:24:37,179 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_52073c3a-afc3-45ce-b972-77a5371edae1/sv-benchmarks/c/float-newlib/float_req_bl_0250a_true-unreach-call.c [2018-12-09 01:24:37,183 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_52073c3a-afc3-45ce-b972-77a5371edae1/bin-2019/uautomizer/data/27964b9c2/82ffb553f4af4110bf767711c3cb6ece/FLAGdcb9ca11c [2018-12-09 01:24:37,193 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_52073c3a-afc3-45ce-b972-77a5371edae1/bin-2019/uautomizer/data/27964b9c2/82ffb553f4af4110bf767711c3cb6ece [2018-12-09 01:24:37,195 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 01:24:37,196 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 01:24:37,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 01:24:37,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 01:24:37,200 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 01:24:37,200 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:24:37" (1/1) ... [2018-12-09 01:24:37,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1441f7a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:37, skipping insertion in model container [2018-12-09 01:24:37,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:24:37" (1/1) ... [2018-12-09 01:24:37,207 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 01:24:37,226 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 01:24:37,353 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:24:37,356 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 01:24:37,389 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:24:37,437 INFO L195 MainTranslator]: Completed translation [2018-12-09 01:24:37,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:37 WrapperNode [2018-12-09 01:24:37,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 01:24:37,438 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 01:24:37,438 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 01:24:37,438 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 01:24:37,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:37" (1/1) ... [2018-12-09 01:24:37,452 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:37" (1/1) ... [2018-12-09 01:24:37,457 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 01:24:37,458 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 01:24:37,458 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 01:24:37,458 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 01:24:37,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:37" (1/1) ... [2018-12-09 01:24:37,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:37" (1/1) ... [2018-12-09 01:24:37,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:37" (1/1) ... [2018-12-09 01:24:37,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:37" (1/1) ... [2018-12-09 01:24:37,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:37" (1/1) ... [2018-12-09 01:24:37,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:37" (1/1) ... [2018-12-09 01:24:37,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:37" (1/1) ... [2018-12-09 01:24:37,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 01:24:37,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 01:24:37,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 01:24:37,482 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 01:24:37,483 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_52073c3a-afc3-45ce-b972-77a5371edae1/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 01:24:37,511 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 01:24:37,511 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 01:24:37,512 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-12-09 01:24:37,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-12-09 01:24:37,512 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-09 01:24:37,512 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-09 01:24:37,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 01:24:37,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 01:24:37,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 01:24:37,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 01:24:37,512 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-12-09 01:24:37,512 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-12-09 01:24:37,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 01:24:37,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 01:24:37,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 01:24:37,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 01:24:37,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 01:24:37,513 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-12-09 01:24:37,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-12-09 01:24:37,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 01:24:37,750 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 01:24:37,751 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-12-09 01:24:37,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:24:37 BoogieIcfgContainer [2018-12-09 01:24:37,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 01:24:37,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 01:24:37,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 01:24:37,753 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 01:24:37,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 01:24:37" (1/3) ... [2018-12-09 01:24:37,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b21641c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:24:37, skipping insertion in model container [2018-12-09 01:24:37,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:37" (2/3) ... [2018-12-09 01:24:37,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b21641c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:24:37, skipping insertion in model container [2018-12-09 01:24:37,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:24:37" (3/3) ... [2018-12-09 01:24:37,755 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0250a_true-unreach-call.c [2018-12-09 01:24:37,761 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 01:24:37,766 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 01:24:37,774 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 01:24:37,792 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 01:24:37,792 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 01:24:37,792 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 01:24:37,792 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 01:24:37,792 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 01:24:37,792 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 01:24:37,792 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 01:24:37,793 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 01:24:37,793 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 01:24:37,803 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2018-12-09 01:24:37,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 01:24:37,807 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:24:37,807 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] [2018-12-09 01:24:37,809 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:24:37,812 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:24:37,812 INFO L82 PathProgramCache]: Analyzing trace with hash 257035693, now seen corresponding path program 1 times [2018-12-09 01:24:37,813 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 01:24:37,813 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 01:24:37,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:24:37,842 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:24:37,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:24:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:24:37,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:24:37,902 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:24:37,902 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 01:24:37,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 01:24:37,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 01:24:37,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 01:24:37,913 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 2 states. [2018-12-09 01:24:37,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:24:37,929 INFO L93 Difference]: Finished difference Result 144 states and 214 transitions. [2018-12-09 01:24:37,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 01:24:37,930 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-12-09 01:24:37,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:24:37,936 INFO L225 Difference]: With dead ends: 144 [2018-12-09 01:24:37,936 INFO L226 Difference]: Without dead ends: 72 [2018-12-09 01:24:37,938 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 01:24:37,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-12-09 01:24:37,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-12-09 01:24:37,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-12-09 01:24:37,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 89 transitions. [2018-12-09 01:24:37,961 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 89 transitions. Word has length 21 [2018-12-09 01:24:37,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:24:37,961 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 89 transitions. [2018-12-09 01:24:37,961 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 01:24:37,962 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 89 transitions. [2018-12-09 01:24:37,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 01:24:37,962 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:24:37,962 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:24:37,962 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:24:37,962 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:24:37,963 INFO L82 PathProgramCache]: Analyzing trace with hash -225488588, now seen corresponding path program 1 times [2018-12-09 01:24:37,963 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 01:24:37,963 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 01:24:37,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:24:37,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:24:37,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 01:24:37,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 01:24:37,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 01:24:38,015 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 01:24:38,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 01:24:38 BoogieIcfgContainer [2018-12-09 01:24:38,037 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 01:24:38,037 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 01:24:38,037 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 01:24:38,037 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 01:24:38,038 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:24:37" (3/4) ... [2018-12-09 01:24:38,040 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 01:24:38,040 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 01:24:38,040 INFO L168 Benchmark]: Toolchain (without parser) took 844.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 952.2 MB in the beginning and 1.0 GB in the end (delta: -73.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-12-09 01:24:38,041 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:24:38,042 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -148.5 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. [2018-12-09 01:24:38,042 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 01:24:38,042 INFO L168 Benchmark]: Boogie Preprocessor took 24.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 01:24:38,042 INFO L168 Benchmark]: RCFGBuilder took 268.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2018-12-09 01:24:38,043 INFO L168 Benchmark]: TraceAbstraction took 285.60 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2018-12-09 01:24:38,043 INFO L168 Benchmark]: Witness Printer took 2.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 01:24:38,045 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 241.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.7 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -148.5 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.28 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 268.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 285.60 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Witness Printer took 2.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 233]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 58, overapproximation of someUnaryDOUBLEoperation at line 147, overapproximation of bitwiseAnd at line 161, overapproximation of someUnaryFLOAToperation at line 145, overapproximation of someBinaryArithmeticFLOAToperation at line 164. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; [L60] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L143-L151] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; VAL [\old(huge_asin)=6442450968, \old(huge_floor)=6442450957, \old(one_asin)=6442450960, \old(one_sqrt)=6442450958, \old(pio2_hi_asin)=6442450959, \old(pio2_lo_asin)=6442450952, \old(pio4_hi_asin)=6442450961, \old(pS0_asin)=6442450966, \old(pS1_asin)=6442450962, \old(pS2_asin)=6442450946, \old(pS3_asin)=6442450965, \old(pS4_asin)=6442450954, \old(pS5_asin)=6442450951, \old(qS1_asin)=6442450969, \old(qS2_asin)=6442450955, \old(qS3_asin)=6442450945, \old(qS4_asin)=6442450967, \old(tiny_sqrt)=6442450953, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L228] float x = 1.0f / 0.0f; VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L229] CALL, EXPR __ieee754_asinf(x) VAL [\old(x)=6442450963, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L154] float t, w, p, q, c, r, s; [L155] __int32_t hx, ix; VAL [\old(x)=6442450963, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L157] ieee_float_shape_type gf_u; [L158] gf_u.value = (x) [L159] EXPR gf_u.word [L159] (hx) = gf_u.word [L161] ix = hx & 0x7fffffff VAL [\old(x)=6442450963, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-2147483648, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L162] COND TRUE ix == 0x3f800000 [L164] return x * pio2_hi_asin + x * pio2_lo_asin; VAL [\old(x)=6442450963, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-2147483648, ix=1065353216, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L229] RET, EXPR __ieee754_asinf(x) VAL [__ieee754_asinf(x)=6442450949, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L229] float res = __ieee754_asinf(x); [L232] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450949, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L58] return x != x; VAL [\old(x)=6442450949, \result=0, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L232] RET, EXPR isnan_float(res) VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, isnan_float(res)=0, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=6442450949, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L232] COND TRUE !isnan_float(res) [L233] __VERIFIER_error() VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=6442450949, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 76 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 93 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=76occurred 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, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-09 01:24:39,347 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 01:24:39,348 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 01:24:39,354 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 01:24:39,354 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 01:24:39,354 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 01:24:39,355 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 01:24:39,356 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 01:24:39,357 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 01:24:39,357 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 01:24:39,358 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 01:24:39,358 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 01:24:39,358 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 01:24:39,359 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 01:24:39,359 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 01:24:39,360 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 01:24:39,360 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 01:24:39,361 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 01:24:39,362 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 01:24:39,362 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 01:24:39,363 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 01:24:39,364 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 01:24:39,365 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 01:24:39,365 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 01:24:39,365 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 01:24:39,365 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 01:24:39,366 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 01:24:39,366 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 01:24:39,367 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 01:24:39,367 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 01:24:39,367 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 01:24:39,368 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 01:24:39,368 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 01:24:39,368 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 01:24:39,369 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 01:24:39,369 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 01:24:39,369 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_52073c3a-afc3-45ce-b972-77a5371edae1/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-09 01:24:39,376 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 01:24:39,376 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 01:24:39,377 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 01:24:39,377 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 01:24:39,377 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 01:24:39,377 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 01:24:39,378 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 01:24:39,378 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 01:24:39,378 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 01:24:39,378 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 01:24:39,378 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 01:24:39,378 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 01:24:39,378 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 01:24:39,378 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 01:24:39,379 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 01:24:39,379 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 01:24:39,379 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 01:24:39,379 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 01:24:39,379 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 01:24:39,379 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 01:24:39,379 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 01:24:39,380 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 01:24:39,380 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 01:24:39,380 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 01:24:39,380 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 01:24:39,380 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 01:24:39,380 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 01:24:39,380 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 01:24:39,380 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-09 01:24:39,381 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 01:24:39,381 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 01:24:39,381 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 01:24:39,381 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_52073c3a-afc3-45ce-b972-77a5371edae1/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 -> 78ea74dfa7532b5891dcf798c387cbc67437d79b [2018-12-09 01:24:39,399 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 01:24:39,409 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 01:24:39,412 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 01:24:39,413 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 01:24:39,413 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 01:24:39,414 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_52073c3a-afc3-45ce-b972-77a5371edae1/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0250a_true-unreach-call.c [2018-12-09 01:24:39,461 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_52073c3a-afc3-45ce-b972-77a5371edae1/bin-2019/uautomizer/data/53f5b19dd/41c1914b73ea46a3ae0f30c134fbd78d/FLAGe93e863a2 [2018-12-09 01:24:39,792 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 01:24:39,792 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_52073c3a-afc3-45ce-b972-77a5371edae1/sv-benchmarks/c/float-newlib/float_req_bl_0250a_true-unreach-call.c [2018-12-09 01:24:39,797 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_52073c3a-afc3-45ce-b972-77a5371edae1/bin-2019/uautomizer/data/53f5b19dd/41c1914b73ea46a3ae0f30c134fbd78d/FLAGe93e863a2 [2018-12-09 01:24:39,806 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_52073c3a-afc3-45ce-b972-77a5371edae1/bin-2019/uautomizer/data/53f5b19dd/41c1914b73ea46a3ae0f30c134fbd78d [2018-12-09 01:24:39,808 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 01:24:39,809 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 01:24:39,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 01:24:39,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 01:24:39,811 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 01:24:39,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:24:39" (1/1) ... [2018-12-09 01:24:39,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@736e3ff3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:39, skipping insertion in model container [2018-12-09 01:24:39,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:24:39" (1/1) ... [2018-12-09 01:24:39,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 01:24:39,837 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 01:24:39,967 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:24:39,971 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 01:24:40,009 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 01:24:40,031 INFO L195 MainTranslator]: Completed translation [2018-12-09 01:24:40,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:40 WrapperNode [2018-12-09 01:24:40,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 01:24:40,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 01:24:40,033 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 01:24:40,033 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 01:24:40,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:40" (1/1) ... [2018-12-09 01:24:40,046 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:40" (1/1) ... [2018-12-09 01:24:40,084 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 01:24:40,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 01:24:40,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 01:24:40,084 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 01:24:40,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:40" (1/1) ... [2018-12-09 01:24:40,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:40" (1/1) ... [2018-12-09 01:24:40,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:40" (1/1) ... [2018-12-09 01:24:40,094 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:40" (1/1) ... [2018-12-09 01:24:40,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:40" (1/1) ... [2018-12-09 01:24:40,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:40" (1/1) ... [2018-12-09 01:24:40,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:40" (1/1) ... [2018-12-09 01:24:40,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 01:24:40,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 01:24:40,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 01:24:40,118 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 01:24:40,119 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_52073c3a-afc3-45ce-b972-77a5371edae1/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 01:24:40,148 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 01:24:40,148 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 01:24:40,148 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-12-09 01:24:40,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-12-09 01:24:40,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-09 01:24:40,149 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-09 01:24:40,149 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-09 01:24:40,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 01:24:40,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 01:24:40,149 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-12-09 01:24:40,149 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-12-09 01:24:40,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 01:24:40,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 01:24:40,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 01:24:40,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 01:24:40,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-09 01:24:40,150 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-12-09 01:24:40,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-12-09 01:24:40,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 01:24:40,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 01:24:40,277 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:24:49,131 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:24:49,170 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:24:49,649 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 01:24:49,654 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 01:24:49,654 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-12-09 01:24:49,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:24:49 BoogieIcfgContainer [2018-12-09 01:24:49,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 01:24:49,655 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 01:24:49,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 01:24:49,658 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 01:24:49,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 01:24:39" (1/3) ... [2018-12-09 01:24:49,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f516349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:24:49, skipping insertion in model container [2018-12-09 01:24:49,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:24:40" (2/3) ... [2018-12-09 01:24:49,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f516349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:24:49, skipping insertion in model container [2018-12-09 01:24:49,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:24:49" (3/3) ... [2018-12-09 01:24:49,660 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0250a_true-unreach-call.c [2018-12-09 01:24:49,667 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 01:24:49,673 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 01:24:49,683 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 01:24:49,701 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 01:24:49,701 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 01:24:49,701 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 01:24:49,701 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 01:24:49,702 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 01:24:49,702 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 01:24:49,702 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 01:24:49,702 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 01:24:49,702 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 01:24:49,712 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2018-12-09 01:24:49,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 01:24:49,716 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:24:49,716 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] [2018-12-09 01:24:49,718 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:24:49,722 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:24:49,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1204794971, now seen corresponding path program 1 times [2018-12-09 01:24:49,724 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 01:24:49,725 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_52073c3a-afc3-45ce-b972-77a5371edae1/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-09 01:24:49,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:24:49,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:24:49,908 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:24:49,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:24:49,919 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 01:24:49,929 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:24:49,929 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 01:24:49,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 01:24:49,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 01:24:49,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 01:24:49,942 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 2 states. [2018-12-09 01:24:49,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:24:49,963 INFO L93 Difference]: Finished difference Result 142 states and 212 transitions. [2018-12-09 01:24:49,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 01:24:49,964 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-12-09 01:24:49,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:24:49,972 INFO L225 Difference]: With dead ends: 142 [2018-12-09 01:24:49,972 INFO L226 Difference]: Without dead ends: 71 [2018-12-09 01:24:49,975 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 01:24:49,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-12-09 01:24:49,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-12-09 01:24:49,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-12-09 01:24:49,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 88 transitions. [2018-12-09 01:24:50,000 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 88 transitions. Word has length 20 [2018-12-09 01:24:50,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:24:50,001 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 88 transitions. [2018-12-09 01:24:50,001 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 01:24:50,001 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2018-12-09 01:24:50,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 01:24:50,001 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:24:50,001 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] [2018-12-09 01:24:50,002 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:24:50,002 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:24:50,002 INFO L82 PathProgramCache]: Analyzing trace with hash -624565231, now seen corresponding path program 1 times [2018-12-09 01:24:50,003 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 01:24:50,003 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_52073c3a-afc3-45ce-b972-77a5371edae1/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-09 01:24:50,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:24:50,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:24:50,179 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:24:50,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:24:50,259 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 01:24:50,268 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:24:50,268 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 01:24:50,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 01:24:50,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 01:24:50,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 01:24:50,269 INFO L87 Difference]: Start difference. First operand 71 states and 88 transitions. Second operand 7 states. [2018-12-09 01:24:56,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:24:56,371 INFO L93 Difference]: Finished difference Result 84 states and 101 transitions. [2018-12-09 01:24:56,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 01:24:56,372 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-12-09 01:24:56,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:24:56,374 INFO L225 Difference]: With dead ends: 84 [2018-12-09 01:24:56,374 INFO L226 Difference]: Without dead ends: 74 [2018-12-09 01:24:56,375 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-12-09 01:24:56,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-12-09 01:24:56,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 71. [2018-12-09 01:24:56,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-12-09 01:24:56,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 87 transitions. [2018-12-09 01:24:56,381 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 87 transitions. Word has length 21 [2018-12-09 01:24:56,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:24:56,381 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 87 transitions. [2018-12-09 01:24:56,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 01:24:56,381 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 87 transitions. [2018-12-09 01:24:56,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 01:24:56,381 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:24:56,382 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:24:56,382 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:24:56,382 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:24:56,382 INFO L82 PathProgramCache]: Analyzing trace with hash 2002478333, now seen corresponding path program 1 times [2018-12-09 01:24:56,382 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 01:24:56,382 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_52073c3a-afc3-45ce-b972-77a5371edae1/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-09 01:24:56,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:24:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:24:56,576 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:24:58,263 WARN L180 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-12-09 01:25:00,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:25:00,496 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 01:25:00,505 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:25:00,505 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-09 01:25:00,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 01:25:00,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 01:25:00,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-09 01:25:00,506 INFO L87 Difference]: Start difference. First operand 71 states and 87 transitions. Second operand 9 states. [2018-12-09 01:25:03,575 WARN L180 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 9 [2018-12-09 01:25:10,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:25:10,801 INFO L93 Difference]: Finished difference Result 80 states and 96 transitions. [2018-12-09 01:25:10,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 01:25:10,801 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-12-09 01:25:10,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:25:10,802 INFO L225 Difference]: With dead ends: 80 [2018-12-09 01:25:10,802 INFO L226 Difference]: Without dead ends: 73 [2018-12-09 01:25:10,803 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-12-09 01:25:10,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-12-09 01:25:10,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 71. [2018-12-09 01:25:10,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-12-09 01:25:10,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 86 transitions. [2018-12-09 01:25:10,810 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 86 transitions. Word has length 22 [2018-12-09 01:25:10,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:25:10,810 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 86 transitions. [2018-12-09 01:25:10,810 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 01:25:10,810 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 86 transitions. [2018-12-09 01:25:10,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 01:25:10,811 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:25:10,811 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:25:10,811 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:25:10,811 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:25:10,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1628950099, now seen corresponding path program 1 times [2018-12-09 01:25:10,812 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 01:25:10,812 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_52073c3a-afc3-45ce-b972-77a5371edae1/bin-2019/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-09 01:25:10,815 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:25:11,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:25:11,762 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:25:11,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:25:11,838 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 01:25:11,855 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:25:11,855 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 01:25:11,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 01:25:11,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 01:25:11,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 01:25:11,855 INFO L87 Difference]: Start difference. First operand 71 states and 86 transitions. Second operand 7 states. [2018-12-09 01:25:16,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:25:16,870 INFO L93 Difference]: Finished difference Result 84 states and 99 transitions. [2018-12-09 01:25:16,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 01:25:16,871 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-12-09 01:25:16,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:25:16,871 INFO L225 Difference]: With dead ends: 84 [2018-12-09 01:25:16,871 INFO L226 Difference]: Without dead ends: 66 [2018-12-09 01:25:16,872 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 [2018-12-09 01:25:16,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-12-09 01:25:16,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2018-12-09 01:25:16,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-12-09 01:25:16,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 78 transitions. [2018-12-09 01:25:16,876 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 78 transitions. Word has length 24 [2018-12-09 01:25:16,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:25:16,876 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 78 transitions. [2018-12-09 01:25:16,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 01:25:16,876 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 78 transitions. [2018-12-09 01:25:16,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-12-09 01:25:16,877 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 01:25:16,877 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 01:25:16,877 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 01:25:16,877 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 01:25:16,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1429916512, now seen corresponding path program 1 times [2018-12-09 01:25:16,878 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 01:25:16,878 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_52073c3a-afc3-45ce-b972-77a5371edae1/bin-2019/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-12-09 01:25:16,881 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 01:25:17,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 01:25:17,983 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 01:25:18,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 01:25:18,067 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 01:25:18,087 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 01:25:18,087 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 01:25:18,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 01:25:18,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 01:25:18,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 01:25:18,088 INFO L87 Difference]: Start difference. First operand 66 states and 78 transitions. Second operand 7 states. [2018-12-09 01:25:20,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 01:25:20,530 INFO L93 Difference]: Finished difference Result 66 states and 78 transitions. [2018-12-09 01:25:20,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 01:25:20,531 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2018-12-09 01:25:20,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 01:25:20,531 INFO L225 Difference]: With dead ends: 66 [2018-12-09 01:25:20,531 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 01:25:20,532 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-12-09 01:25:20,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 01:25:20,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 01:25:20,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 01:25:20,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 01:25:20,532 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2018-12-09 01:25:20,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 01:25:20,532 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 01:25:20,532 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 01:25:20,533 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 01:25:20,533 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 01:25:20,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 01:25:20,693 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 58) no Hoare annotation was computed. [2018-12-09 01:25:20,694 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 58) the Hoare annotation is: true [2018-12-09 01:25:20,694 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 58) no Hoare annotation was computed. [2018-12-09 01:25:20,694 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 01:25:20,694 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 01:25:20,694 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 01:25:20,694 INFO L448 ceAbstractionStarter]: For program point L130-1(lines 130 134) no Hoare annotation was computed. [2018-12-09 01:25:20,694 INFO L451 ceAbstractionStarter]: At program point L130-2(lines 130 134) the Hoare annotation is: true [2018-12-09 01:25:20,694 INFO L448 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 128 141) no Hoare annotation was computed. [2018-12-09 01:25:20,694 INFO L448 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 128 141) no Hoare annotation was computed. [2018-12-09 01:25:20,694 INFO L451 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 128 141) the Hoare annotation is: true [2018-12-09 01:25:20,694 INFO L448 ceAbstractionStarter]: For program point L135(lines 135 139) no Hoare annotation was computed. [2018-12-09 01:25:20,694 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 128 141) no Hoare annotation was computed. [2018-12-09 01:25:20,694 INFO L448 ceAbstractionStarter]: For program point L135-2(lines 135 139) no Hoare annotation was computed. [2018-12-09 01:25:20,695 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 01:25:20,695 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 01:25:20,695 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 01:25:20,695 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 01:25:20,695 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 233) no Hoare annotation was computed. [2018-12-09 01:25:20,695 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 221 238) the Hoare annotation is: true [2018-12-09 01:25:20,695 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 221 238) no Hoare annotation was computed. [2018-12-09 01:25:20,695 INFO L448 ceAbstractionStarter]: For program point L233(line 233) no Hoare annotation was computed. [2018-12-09 01:25:20,695 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 221 238) no Hoare annotation was computed. [2018-12-09 01:25:20,695 INFO L444 ceAbstractionStarter]: At program point L232(line 232) 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))) [2018-12-09 01:25:20,695 INFO L448 ceAbstractionStarter]: For program point L232-1(lines 232 235) no Hoare annotation was computed. [2018-12-09 01:25:20,695 INFO L444 ceAbstractionStarter]: At program point L229(line 229) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24))) [2018-12-09 01:25:20,696 INFO L448 ceAbstractionStarter]: For program point L229-1(line 229) no Hoare annotation was computed. [2018-12-09 01:25:20,696 INFO L444 ceAbstractionStarter]: At program point L192(line 192) the Hoare annotation is: (and (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) __ieee754_asinf_~ix~3))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) (_ bv1065353216 32))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|)))) [2018-12-09 01:25:20,696 INFO L448 ceAbstractionStarter]: For program point L192-1(line 192) no Hoare annotation was computed. [2018-12-09 01:25:20,696 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-12-09 01:25:20,696 INFO L448 ceAbstractionStarter]: For program point L168(lines 168 181) no Hoare annotation was computed. [2018-12-09 01:25:20,696 INFO L448 ceAbstractionStarter]: For program point L193(lines 193 214) no Hoare annotation was computed. [2018-12-09 01:25:20,696 INFO L448 ceAbstractionStarter]: For program point L193-2(lines 153 219) no Hoare annotation was computed. [2018-12-09 01:25:20,696 INFO L448 ceAbstractionStarter]: For program point L156-1(lines 156 160) no Hoare annotation was computed. [2018-12-09 01:25:20,696 INFO L444 ceAbstractionStarter]: At program point L156-2(lines 156 160) the Hoare annotation is: (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) [2018-12-09 01:25:20,696 INFO L448 ceAbstractionStarter]: For program point L156-3(lines 156 160) no Hoare annotation was computed. [2018-12-09 01:25:20,696 INFO L448 ceAbstractionStarter]: For program point L169(lines 169 170) no Hoare annotation was computed. [2018-12-09 01:25:20,696 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 182) no Hoare annotation was computed. [2018-12-09 01:25:20,697 INFO L451 ceAbstractionStarter]: At program point __ieee754_asinfENTRY(lines 153 219) the Hoare annotation is: true [2018-12-09 01:25:20,697 INFO L448 ceAbstractionStarter]: For program point L199-1(lines 199 203) no Hoare annotation was computed. [2018-12-09 01:25:20,697 INFO L444 ceAbstractionStarter]: At program point L199-2(lines 199 203) the Hoare annotation is: (and (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) __ieee754_asinf_~ix~3))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) (_ bv1065353216 32))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|)))) [2018-12-09 01:25:20,697 INFO L448 ceAbstractionStarter]: For program point __ieee754_asinfFINAL(lines 153 219) no Hoare annotation was computed. [2018-12-09 01:25:20,697 INFO L448 ceAbstractionStarter]: For program point L162(lines 162 182) no Hoare annotation was computed. [2018-12-09 01:25:20,697 INFO L448 ceAbstractionStarter]: For program point __ieee754_asinfEXIT(lines 153 219) no Hoare annotation was computed. [2018-12-09 01:25:20,697 INFO L448 ceAbstractionStarter]: For program point L204(lines 204 208) no Hoare annotation was computed. [2018-12-09 01:25:20,697 INFO L448 ceAbstractionStarter]: For program point L204-1(lines 196 214) no Hoare annotation was computed. [2018-12-09 01:25:20,697 INFO L448 ceAbstractionStarter]: For program point L204-2(lines 204 208) no Hoare annotation was computed. [2018-12-09 01:25:20,697 INFO L448 ceAbstractionStarter]: For program point L167(lines 167 182) no Hoare annotation was computed. [2018-12-09 01:25:20,697 INFO L444 ceAbstractionStarter]: At program point L167-1(lines 167 182) the Hoare annotation is: (and (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) __ieee754_asinf_~ix~3))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) (_ bv1065353216 32))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|)))) [2018-12-09 01:25:20,697 INFO L448 ceAbstractionStarter]: For program point L77(lines 77 78) no Hoare annotation was computed. [2018-12-09 01:25:20,698 INFO L451 ceAbstractionStarter]: At program point L98-2(lines 98 107) the Hoare annotation is: true [2018-12-09 01:25:20,698 INFO L448 ceAbstractionStarter]: For program point L98-3(lines 62 127) no Hoare annotation was computed. [2018-12-09 01:25:20,698 INFO L448 ceAbstractionStarter]: For program point L90(lines 90 91) no Hoare annotation was computed. [2018-12-09 01:25:20,698 INFO L448 ceAbstractionStarter]: For program point L90-2(lines 90 91) no Hoare annotation was computed. [2018-12-09 01:25:20,698 INFO L451 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 62 127) the Hoare annotation is: true [2018-12-09 01:25:20,698 INFO L448 ceAbstractionStarter]: For program point L111(lines 111 117) no Hoare annotation was computed. [2018-12-09 01:25:20,698 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 75) no Hoare annotation was computed. [2018-12-09 01:25:20,698 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 62 127) no Hoare annotation was computed. [2018-12-09 01:25:20,698 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 62 127) no Hoare annotation was computed. [2018-12-09 01:25:20,698 INFO L448 ceAbstractionStarter]: For program point L83(lines 83 87) no Hoare annotation was computed. [2018-12-09 01:25:20,698 INFO L448 ceAbstractionStarter]: For program point L83-2(lines 83 87) no Hoare annotation was computed. [2018-12-09 01:25:20,698 INFO L448 ceAbstractionStarter]: For program point L79(lines 79 80) no Hoare annotation was computed. [2018-12-09 01:25:20,699 INFO L448 ceAbstractionStarter]: For program point L100(lines 100 104) no Hoare annotation was computed. [2018-12-09 01:25:20,699 INFO L448 ceAbstractionStarter]: For program point L67-1(lines 67 71) no Hoare annotation was computed. [2018-12-09 01:25:20,699 INFO L448 ceAbstractionStarter]: For program point L100-2(lines 100 104) no Hoare annotation was computed. [2018-12-09 01:25:20,699 INFO L451 ceAbstractionStarter]: At program point L67-2(lines 67 71) the Hoare annotation is: true [2018-12-09 01:25:20,699 INFO L448 ceAbstractionStarter]: For program point L67-3(lines 67 71) no Hoare annotation was computed. [2018-12-09 01:25:20,699 INFO L448 ceAbstractionStarter]: For program point L121-1(lines 121 125) no Hoare annotation was computed. [2018-12-09 01:25:20,699 INFO L451 ceAbstractionStarter]: At program point L121-2(lines 121 125) the Hoare annotation is: true [2018-12-09 01:25:20,699 INFO L448 ceAbstractionStarter]: For program point L121-3(lines 121 125) no Hoare annotation was computed. [2018-12-09 01:25:20,699 INFO L448 ceAbstractionStarter]: For program point L84-2(lines 84 85) no Hoare annotation was computed. [2018-12-09 01:25:20,699 INFO L451 ceAbstractionStarter]: At program point L84-3(lines 84 85) the Hoare annotation is: true [2018-12-09 01:25:20,699 INFO L448 ceAbstractionStarter]: For program point L113(lines 113 116) no Hoare annotation was computed. [2018-12-09 01:25:20,699 INFO L448 ceAbstractionStarter]: For program point L84-4(lines 84 85) no Hoare annotation was computed. [2018-12-09 01:25:20,699 INFO L448 ceAbstractionStarter]: For program point L109(lines 109 118) no Hoare annotation was computed. [2018-12-09 01:25:20,704 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 01:25:20,704 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 01:25:20,704 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 01:25:20,704 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 01:25:20,705 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 01:25:20,705 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 01:25:20,705 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 01:25:20,705 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 01:25:20,708 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 01:25:20,708 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 01:25:20,708 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 01:25:20,709 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 01:25:20,709 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 01:25:20,709 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 01:25:20,709 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 01:25:20,709 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 01:25:20,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 01:25:20 BoogieIcfgContainer [2018-12-09 01:25:20,711 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 01:25:20,711 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 01:25:20,711 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 01:25:20,712 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 01:25:20,712 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:24:49" (3/4) ... [2018-12-09 01:25:20,714 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 01:25:20,718 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-12-09 01:25:20,718 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 01:25:20,718 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-12-09 01:25:20,719 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 01:25:20,719 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_asinf [2018-12-09 01:25:20,719 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-12-09 01:25:20,723 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2018-12-09 01:25:20,723 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-12-09 01:25:20,724 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-09 01:25:20,724 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 01:25:20,740 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-09 01:25:20,741 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\old(x) == x && (\exists __ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x) && ~bvand32(2147483647bv32, __ieee754_asinf_~hx~1) == ix)) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x)) && (\exists __ieee754_asinf_~hx~1 : bv32 :: !~bvsgt32(~bvand32(2147483647bv32, __ieee754_asinf_~hx~1), 1065353216bv32) && ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x)) [2018-12-09 01:25:20,764 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_52073c3a-afc3-45ce-b972-77a5371edae1/bin-2019/uautomizer/witness.graphml [2018-12-09 01:25:20,764 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 01:25:20,764 INFO L168 Benchmark]: Toolchain (without parser) took 40955.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 944.7 MB in the beginning and 874.1 MB in the end (delta: 70.6 MB). Peak memory consumption was 208.5 MB. Max. memory is 11.5 GB. [2018-12-09 01:25:20,765 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 01:25:20,765 INFO L168 Benchmark]: CACSL2BoogieTranslator took 222.81 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 923.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-12-09 01:25:20,765 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 923.2 MB in the beginning and 1.1 GB in the end (delta: -209.2 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-12-09 01:25:20,765 INFO L168 Benchmark]: Boogie Preprocessor took 33.78 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-09 01:25:20,765 INFO L168 Benchmark]: RCFGBuilder took 9536.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.3 MB). Peak memory consumption was 35.3 MB. Max. memory is 11.5 GB. [2018-12-09 01:25:20,765 INFO L168 Benchmark]: TraceAbstraction took 31055.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 880.9 MB in the end (delta: 202.6 MB). Peak memory consumption was 202.6 MB. Max. memory is 11.5 GB. [2018-12-09 01:25:20,766 INFO L168 Benchmark]: Witness Printer took 52.38 ms. Allocated memory is still 1.2 GB. Free memory was 880.9 MB in the beginning and 874.1 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-09 01:25:20,767 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 222.81 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 923.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 51.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 923.2 MB in the beginning and 1.1 GB in the end (delta: -209.2 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.78 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 9536.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.3 MB). Peak memory consumption was 35.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 31055.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 880.9 MB in the end (delta: 202.6 MB). Peak memory consumption was 202.6 MB. Max. memory is 11.5 GB. * Witness Printer took 52.38 ms. Allocated memory is still 1.2 GB. Free memory was 880.9 MB in the beginning and 874.1 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 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_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 233]: 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: 98]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 199]: Loop Invariant [2018-12-09 01:25:20,770 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 01:25:20,770 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 01:25:20,771 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 01:25:20,771 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 01:25:20,771 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 01:25:20,771 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 01:25:20,771 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 01:25:20,771 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 01:25:20,771 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 01:25:20,771 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 01:25:20,771 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 01:25:20,772 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 01:25:20,772 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 01:25:20,772 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 01:25:20,772 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-09 01:25:20,772 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: ((\old(x) == x && (\exists __ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x) && ~bvand32(2147483647bv32, __ieee754_asinf_~hx~1) == ix)) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x)) && (\exists __ieee754_asinf_~hx~1 : bv32 :: !~bvsgt32(~bvand32(2147483647bv32, __ieee754_asinf_~hx~1), 1065353216bv32) && ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x)) - InvariantResult [Line: 156]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 75 locations, 1 error locations. SAFE Result, 31.0s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 23.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 380 SDtfs, 198 SDslu, 1429 SDs, 0 SdLazy, 186 SolverSat, 23 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 18.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 7.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred 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, 5 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 30 PreInvPairs, 40 NumberOfFragments, 203 HoareAnnotationTreeSize, 30 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 19 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 126 ConstructedInterpolants, 20 QuantifiedInterpolants, 19273 SizeOfPredicates, 16 NumberOfNonLiveVariables, 606 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...