./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0921.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0921.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/bin/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 86466cf5e99320b887fae6f726f2af775c2eaef8 ....................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0921.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/bin/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 86466cf5e99320b887fae6f726f2af775c2eaef8 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 01:10:13,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 01:10:13,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 01:10:13,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 01:10:13,646 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 01:10:13,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 01:10:13,649 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 01:10:13,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 01:10:13,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 01:10:13,669 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 01:10:13,670 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 01:10:13,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 01:10:13,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 01:10:13,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 01:10:13,673 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 01:10:13,675 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 01:10:13,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 01:10:13,676 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 01:10:13,678 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 01:10:13,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 01:10:13,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 01:10:13,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 01:10:13,697 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 01:10:13,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 01:10:13,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 01:10:13,703 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 01:10:13,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 01:10:13,707 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 01:10:13,707 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 01:10:13,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 01:10:13,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 01:10:13,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 01:10:13,711 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 01:10:13,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 01:10:13,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 01:10:13,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 01:10:13,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 01:10:13,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 01:10:13,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 01:10:13,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 01:10:13,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 01:10:13,717 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 01:10:13,748 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 01:10:13,748 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 01:10:13,749 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 01:10:13,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 01:10:13,750 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 01:10:13,750 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 01:10:13,750 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 01:10:13,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 01:10:13,751 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 01:10:13,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 01:10:13,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 01:10:13,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 01:10:13,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 01:10:13,752 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 01:10:13,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 01:10:13,752 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 01:10:13,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 01:10:13,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 01:10:13,753 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 01:10:13,753 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 01:10:13,753 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 01:10:13,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 01:10:13,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 01:10:13,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 01:10:13,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 01:10:13,755 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 01:10:13,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 01:10:13,755 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 01:10:13,755 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/bin/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 -> 86466cf5e99320b887fae6f726f2af775c2eaef8 [2019-11-20 01:10:13,924 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 01:10:13,943 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 01:10:13,947 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 01:10:13,956 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 01:10:13,957 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 01:10:13,959 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0921.c [2019-11-20 01:10:14,044 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/bin/uautomizer/data/00b6716fb/25d3438806a94765bd7d8f8c14c3625b/FLAG49807d372 [2019-11-20 01:10:14,508 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 01:10:14,509 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/sv-benchmarks/c/float-newlib/float_req_bl_0921.c [2019-11-20 01:10:14,526 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/bin/uautomizer/data/00b6716fb/25d3438806a94765bd7d8f8c14c3625b/FLAG49807d372 [2019-11-20 01:10:14,883 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/bin/uautomizer/data/00b6716fb/25d3438806a94765bd7d8f8c14c3625b [2019-11-20 01:10:14,886 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 01:10:14,887 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 01:10:14,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 01:10:14,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 01:10:14,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 01:10:14,894 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:10:14" (1/1) ... [2019-11-20 01:10:14,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be73bae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:10:14, skipping insertion in model container [2019-11-20 01:10:14,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:10:14" (1/1) ... [2019-11-20 01:10:14,906 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 01:10:14,948 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 01:10:15,339 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:10:15,346 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 01:10:15,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:10:15,432 INFO L192 MainTranslator]: Completed translation [2019-11-20 01:10:15,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:10:15 WrapperNode [2019-11-20 01:10:15,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 01:10:15,434 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 01:10:15,434 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 01:10:15,434 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 01:10:15,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:10:15" (1/1) ... [2019-11-20 01:10:15,473 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:10:15" (1/1) ... [2019-11-20 01:10:15,501 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 01:10:15,502 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 01:10:15,502 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 01:10:15,502 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 01:10:15,513 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:10:15" (1/1) ... [2019-11-20 01:10:15,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:10:15" (1/1) ... [2019-11-20 01:10:15,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:10:15" (1/1) ... [2019-11-20 01:10:15,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:10:15" (1/1) ... [2019-11-20 01:10:15,526 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:10:15" (1/1) ... [2019-11-20 01:10:15,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:10:15" (1/1) ... [2019-11-20 01:10:15,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:10:15" (1/1) ... [2019-11-20 01:10:15,539 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 01:10:15,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 01:10:15,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 01:10:15,540 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 01:10:15,541 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:10:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/bin/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 [2019-11-20 01:10:15,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 01:10:15,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-20 01:10:15,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 01:10:15,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-20 01:10:15,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 01:10:15,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 01:10:15,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 01:10:15,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 01:10:16,112 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 01:10:16,112 INFO L285 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-20 01:10:16,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:10:16 BoogieIcfgContainer [2019-11-20 01:10:16,114 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 01:10:16,115 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 01:10:16,116 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 01:10:16,119 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 01:10:16,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:10:14" (1/3) ... [2019-11-20 01:10:16,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e59c8a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:10:16, skipping insertion in model container [2019-11-20 01:10:16,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:10:15" (2/3) ... [2019-11-20 01:10:16,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e59c8a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:10:16, skipping insertion in model container [2019-11-20 01:10:16,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:10:16" (3/3) ... [2019-11-20 01:10:16,122 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0921.c [2019-11-20 01:10:16,130 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 01:10:16,136 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 01:10:16,148 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 01:10:16,176 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 01:10:16,176 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 01:10:16,176 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 01:10:16,176 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 01:10:16,176 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 01:10:16,177 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 01:10:16,177 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 01:10:16,177 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 01:10:16,194 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-11-20 01:10:16,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 01:10:16,201 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:10:16,201 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:10:16,202 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:10:16,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:10:16,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1904103824, now seen corresponding path program 1 times [2019-11-20 01:10:16,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:10:16,218 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288598208] [2019-11-20 01:10:16,218 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:10:16,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:10:16,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:10:16,352 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288598208] [2019-11-20 01:10:16,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:10:16,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 01:10:16,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590512889] [2019-11-20 01:10:16,357 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 01:10:16,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:10:16,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 01:10:16,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 01:10:16,372 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2019-11-20 01:10:16,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:10:16,391 INFO L93 Difference]: Finished difference Result 58 states and 92 transitions. [2019-11-20 01:10:16,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 01:10:16,393 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-11-20 01:10:16,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:10:16,405 INFO L225 Difference]: With dead ends: 58 [2019-11-20 01:10:16,405 INFO L226 Difference]: Without dead ends: 27 [2019-11-20 01:10:16,408 INFO L630 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 [2019-11-20 01:10:16,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-20 01:10:16,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-20 01:10:16,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-20 01:10:16,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-11-20 01:10:16,448 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 9 [2019-11-20 01:10:16,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:10:16,449 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-11-20 01:10:16,449 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 01:10:16,449 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-11-20 01:10:16,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 01:10:16,450 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:10:16,450 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:10:16,451 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:10:16,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:10:16,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1484246989, now seen corresponding path program 1 times [2019-11-20 01:10:16,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:10:16,452 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374879139] [2019-11-20 01:10:16,452 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:10:16,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:10:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 01:10:16,561 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 01:10:16,561 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 01:10:16,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 01:10:16 BoogieIcfgContainer [2019-11-20 01:10:16,599 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 01:10:16,600 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 01:10:16,600 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 01:10:16,600 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 01:10:16,601 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:10:16" (3/4) ... [2019-11-20 01:10:16,604 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 01:10:16,604 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 01:10:16,607 INFO L168 Benchmark]: Toolchain (without parser) took 1718.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -124.6 MB). Peak memory consumption was 4.4 MB. Max. memory is 11.5 GB. [2019-11-20 01:10:16,608 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:10:16,609 INFO L168 Benchmark]: CACSL2BoogieTranslator took 544.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -175.2 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-11-20 01:10:16,609 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.82 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:10:16,610 INFO L168 Benchmark]: Boogie Preprocessor took 37.22 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-20 01:10:16,611 INFO L168 Benchmark]: RCFGBuilder took 575.00 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-11-20 01:10:16,612 INFO L168 Benchmark]: TraceAbstraction took 484.07 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-11-20 01:10:16,612 INFO L168 Benchmark]: Witness Printer took 4.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:10:16,616 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 544.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -175.2 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 67.82 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.22 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 575.00 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 484.07 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 124]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 111, overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 43. Possible FailurePath: [L24-L28] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L30] static const float zero_log = 0.0; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L119] float x = 0.0f / 0.0f; [L33] float hfsq, f, s, z, R, w, t1, t2, dk; [L34] __int32_t k, ix, i, j; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L37] ieee_float_shape_type gf_u; [L38] gf_u.value = (x) [L39] EXPR gf_u.word [L39] (ix) = gf_u.word [L42] k = 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L43] COND TRUE ((ix & 0x7fffffff) == 0) [L44] return -two25_log / zero_log; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L120] float res = __ieee754_logf(x); [L111] return x != x; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L123] COND TRUE !isnan_float(res) [L124] __VERIFIER_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 40 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=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: 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 0.1.24-678e011 [2019-11-20 01:10:18,970 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2019-11-20 01:10:19,039 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 01:10:19,039 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 01:10:19,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 01:10:19,041 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 01:10:19,045 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 01:10:19,046 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 01:10:19,047 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 01:10:19,047 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 01:10:19,047 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 01:10:19,051 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 01:10:19,053 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 01:10:19,054 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-20 01:10:19,077 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 01:10:19,077 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 01:10:19,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 01:10:19,079 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 01:10:19,080 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 01:10:19,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 01:10:19,081 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 01:10:19,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 01:10:19,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 01:10:19,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 01:10:19,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 01:10:19,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 01:10:19,083 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-20 01:10:19,083 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-20 01:10:19,084 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 01:10:19,084 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 01:10:19,085 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 01:10:19,085 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 01:10:19,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 01:10:19,085 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 01:10:19,086 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 01:10:19,086 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 01:10:19,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 01:10:19,087 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 01:10:19,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 01:10:19,087 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 01:10:19,087 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-20 01:10:19,088 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-20 01:10:19,088 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 01:10:19,088 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-20 01:10:19,088 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/bin/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 -> 86466cf5e99320b887fae6f726f2af775c2eaef8 [2019-11-20 01:10:19,433 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 01:10:19,448 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 01:10:19,452 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 01:10:19,453 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 01:10:19,454 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 01:10:19,455 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0921.c [2019-11-20 01:10:19,519 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/bin/uautomizer/data/b87d42272/e07f9c7d28eb4540978f9198648ace60/FLAGabf121f50 [2019-11-20 01:10:20,056 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 01:10:20,059 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/sv-benchmarks/c/float-newlib/float_req_bl_0921.c [2019-11-20 01:10:20,070 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/bin/uautomizer/data/b87d42272/e07f9c7d28eb4540978f9198648ace60/FLAGabf121f50 [2019-11-20 01:10:20,431 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/bin/uautomizer/data/b87d42272/e07f9c7d28eb4540978f9198648ace60 [2019-11-20 01:10:20,434 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 01:10:20,436 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 01:10:20,437 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 01:10:20,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 01:10:20,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 01:10:20,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:10:20" (1/1) ... [2019-11-20 01:10:20,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68f5958f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:10:20, skipping insertion in model container [2019-11-20 01:10:20,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:10:20" (1/1) ... [2019-11-20 01:10:20,455 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 01:10:20,499 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 01:10:20,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:10:20,865 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 01:10:20,996 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:10:21,031 INFO L192 MainTranslator]: Completed translation [2019-11-20 01:10:21,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:10:21 WrapperNode [2019-11-20 01:10:21,033 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 01:10:21,034 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 01:10:21,034 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 01:10:21,034 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 01:10:21,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:10:21" (1/1) ... [2019-11-20 01:10:21,078 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:10:21" (1/1) ... [2019-11-20 01:10:21,118 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 01:10:21,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 01:10:21,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 01:10:21,119 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 01:10:21,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:10:21" (1/1) ... [2019-11-20 01:10:21,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:10:21" (1/1) ... [2019-11-20 01:10:21,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:10:21" (1/1) ... [2019-11-20 01:10:21,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:10:21" (1/1) ... [2019-11-20 01:10:21,150 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:10:21" (1/1) ... [2019-11-20 01:10:21,156 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:10:21" (1/1) ... [2019-11-20 01:10:21,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:10:21" (1/1) ... [2019-11-20 01:10:21,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 01:10:21,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 01:10:21,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 01:10:21,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 01:10:21,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:10:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/bin/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 [2019-11-20 01:10:21,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 01:10:21,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-20 01:10:21,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-20 01:10:21,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 01:10:21,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 01:10:21,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-20 01:10:21,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-20 01:10:21,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 01:10:34,351 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 01:10:34,352 INFO L285 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-20 01:10:34,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:10:34 BoogieIcfgContainer [2019-11-20 01:10:34,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 01:10:34,354 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 01:10:34,354 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 01:10:34,357 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 01:10:34,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:10:20" (1/3) ... [2019-11-20 01:10:34,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507f6c51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:10:34, skipping insertion in model container [2019-11-20 01:10:34,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:10:21" (2/3) ... [2019-11-20 01:10:34,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507f6c51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:10:34, skipping insertion in model container [2019-11-20 01:10:34,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:10:34" (3/3) ... [2019-11-20 01:10:34,361 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0921.c [2019-11-20 01:10:34,372 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 01:10:34,380 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 01:10:34,393 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 01:10:34,421 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 01:10:34,421 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 01:10:34,422 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 01:10:34,422 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 01:10:34,422 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 01:10:34,422 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 01:10:34,422 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 01:10:34,423 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 01:10:34,440 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-11-20 01:10:34,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-20 01:10:34,447 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:10:34,448 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:10:34,449 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:10:34,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:10:34,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1904103824, now seen corresponding path program 1 times [2019-11-20 01:10:34,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 01:10:34,468 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1107002832] [2019-11-20 01:10:34,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/bin/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 [2019-11-20 01:10:34,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:10:34,822 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-20 01:10:34,827 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:10:34,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:10:34,842 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 01:10:34,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:10:34,848 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1107002832] [2019-11-20 01:10:34,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:10:34,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-20 01:10:34,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178090881] [2019-11-20 01:10:34,854 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 01:10:34,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 01:10:34,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 01:10:34,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 01:10:34,869 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2019-11-20 01:10:34,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:10:34,887 INFO L93 Difference]: Finished difference Result 58 states and 92 transitions. [2019-11-20 01:10:34,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 01:10:34,888 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-11-20 01:10:34,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:10:34,900 INFO L225 Difference]: With dead ends: 58 [2019-11-20 01:10:34,900 INFO L226 Difference]: Without dead ends: 27 [2019-11-20 01:10:34,904 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 01:10:34,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-20 01:10:34,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-20 01:10:34,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-20 01:10:34,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2019-11-20 01:10:34,947 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 9 [2019-11-20 01:10:34,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:10:34,947 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2019-11-20 01:10:34,947 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 01:10:34,948 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-11-20 01:10:34,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 01:10:34,949 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:10:34,949 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:10:35,158 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-20 01:10:35,159 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:10:35,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:10:35,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1484246989, now seen corresponding path program 1 times [2019-11-20 01:10:35,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 01:10:35,160 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [36489438] [2019-11-20 01:10:35,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/bin/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 [2019-11-20 01:10:35,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:10:35,569 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 01:10:35,571 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:10:35,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:10:35,622 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 01:10:35,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:10:35,699 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [36489438] [2019-11-20 01:10:35,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:10:35,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-20 01:10:35,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611222605] [2019-11-20 01:10:35,702 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-20 01:10:35,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 01:10:35,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-20 01:10:35,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 01:10:35,704 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand 6 states. [2019-11-20 01:10:38,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:10:38,791 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2019-11-20 01:10:38,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 01:10:38,937 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-11-20 01:10:38,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:10:38,939 INFO L225 Difference]: With dead ends: 42 [2019-11-20 01:10:38,939 INFO L226 Difference]: Without dead ends: 37 [2019-11-20 01:10:38,940 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2019-11-20 01:10:38,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-20 01:10:38,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 27. [2019-11-20 01:10:38,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-20 01:10:38,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2019-11-20 01:10:38,948 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2019-11-20 01:10:38,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:10:38,949 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2019-11-20 01:10:38,949 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-20 01:10:38,949 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2019-11-20 01:10:38,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 01:10:38,950 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:10:38,951 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:10:39,165 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-20 01:10:39,166 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:10:39,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:10:39,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1245975282, now seen corresponding path program 1 times [2019-11-20 01:10:39,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 01:10:39,168 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [741127849] [2019-11-20 01:10:39,168 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/bin/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 [2019-11-20 01:10:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:10:39,515 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 01:10:39,516 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:10:39,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:10:39,642 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 01:10:45,388 WARN L191 SmtUtils]: Spent 978.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2019-11-20 01:10:45,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:10:45,399 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [741127849] [2019-11-20 01:10:45,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:10:45,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-20 01:10:45,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423158195] [2019-11-20 01:10:45,400 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 01:10:45,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 01:10:45,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 01:10:45,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-11-20 01:10:45,401 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand 10 states. [2019-11-20 01:10:57,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:10:57,422 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2019-11-20 01:10:57,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-20 01:10:57,423 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2019-11-20 01:10:57,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:10:57,424 INFO L225 Difference]: With dead ends: 32 [2019-11-20 01:10:57,424 INFO L226 Difference]: Without dead ends: 27 [2019-11-20 01:10:57,425 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2019-11-20 01:10:57,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-20 01:10:57,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-11-20 01:10:57,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-11-20 01:10:57,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2019-11-20 01:10:57,431 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 11 [2019-11-20 01:10:57,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:10:57,431 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2019-11-20 01:10:57,432 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 01:10:57,432 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2019-11-20 01:10:57,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 01:10:57,433 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:10:57,433 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:10:57,634 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-20 01:10:57,634 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:10:57,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:10:57,635 INFO L82 PathProgramCache]: Analyzing trace with hash 933407232, now seen corresponding path program 1 times [2019-11-20 01:10:57,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-20 01:10:57,636 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1458995405] [2019-11-20 01:10:57,636 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/bin/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 [2019-11-20 01:10:57,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:10:57,745 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-20 01:10:57,748 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:10:57,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:10:57,816 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-20 01:10:57,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 01:10:57,897 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1458995405] [2019-11-20 01:10:57,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:10:57,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-20 01:10:57,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567985816] [2019-11-20 01:10:57,899 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-20 01:10:57,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-20 01:10:57,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-20 01:10:57,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-11-20 01:10:57,900 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand 8 states. [2019-11-20 01:10:57,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:10:57,957 INFO L93 Difference]: Finished difference Result 27 states and 34 transitions. [2019-11-20 01:10:57,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 01:10:57,958 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2019-11-20 01:10:57,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:10:57,958 INFO L225 Difference]: With dead ends: 27 [2019-11-20 01:10:57,959 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 01:10:57,959 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2019-11-20 01:10:57,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 01:10:57,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 01:10:57,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 01:10:57,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 01:10:57,960 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2019-11-20 01:10:57,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:10:57,961 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 01:10:57,961 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-20 01:10:57,961 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 01:10:57,961 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 01:10:58,162 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-11-20 01:10:58,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 01:10:58,269 INFO L444 ceAbstractionStarter]: For program point L97(lines 97 101) no Hoare annotation was computed. [2019-11-20 01:10:58,269 INFO L444 ceAbstractionStarter]: For program point L52-1(lines 52 56) no Hoare annotation was computed. [2019-11-20 01:10:58,269 INFO L440 ceAbstractionStarter]: At program point L52-2(lines 52 56) the Hoare annotation is: false [2019-11-20 01:10:58,269 INFO L440 ceAbstractionStarter]: At program point L106(lines 32 108) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)))) (and (= ULTIMATE.start___ieee754_logf_~x .cse0) (= .cse1 ~zero_log~0) (= (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse0 .cse0) .cse1) |ULTIMATE.start___ieee754_logf_#res|))) [2019-11-20 01:10:58,270 INFO L444 ceAbstractionStarter]: For program point L69(lines 69 76) no Hoare annotation was computed. [2019-11-20 01:10:58,270 INFO L444 ceAbstractionStarter]: For program point L36-1(lines 36 40) no Hoare annotation was computed. [2019-11-20 01:10:58,270 INFO L440 ceAbstractionStarter]: At program point L36-2(lines 36 40) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_logf_~x (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) [2019-11-20 01:10:58,270 INFO L444 ceAbstractionStarter]: For program point L36-3(lines 36 40) no Hoare annotation was computed. [2019-11-20 01:10:58,270 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 01:10:58,270 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 01:10:58,271 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 01:10:58,271 INFO L444 ceAbstractionStarter]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2019-11-20 01:10:58,271 INFO L440 ceAbstractionStarter]: At program point L61-2(lines 61 65) the Hoare annotation is: false [2019-11-20 01:10:58,271 INFO L444 ceAbstractionStarter]: For program point L123(lines 123 126) no Hoare annotation was computed. [2019-11-20 01:10:58,271 INFO L444 ceAbstractionStarter]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2019-11-20 01:10:58,272 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 124) no Hoare annotation was computed. [2019-11-20 01:10:58,272 INFO L444 ceAbstractionStarter]: For program point L49(lines 49 57) no Hoare annotation was computed. [2019-11-20 01:10:58,272 INFO L444 ceAbstractionStarter]: For program point L49-1(lines 49 57) no Hoare annotation was computed. [2019-11-20 01:10:58,272 INFO L440 ceAbstractionStarter]: At program point L111(line 111) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) (.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)))) (and (= ULTIMATE.start___ieee754_logf_~x .cse0) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= .cse1 ~zero_log~0) (= (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse0 .cse0) .cse1) |ULTIMATE.start___ieee754_logf_#res|))) [2019-11-20 01:10:58,272 INFO L444 ceAbstractionStarter]: For program point L78(lines 78 83) no Hoare annotation was computed. [2019-11-20 01:10:58,273 INFO L444 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2019-11-20 01:10:58,273 INFO L444 ceAbstractionStarter]: For program point L103(lines 103 106) no Hoare annotation was computed. [2019-11-20 01:10:58,273 INFO L444 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2019-11-20 01:10:58,273 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 01:10:58,273 INFO L447 ceAbstractionStarter]: At program point L128(lines 113 129) the Hoare annotation is: true [2019-11-20 01:10:58,273 INFO L444 ceAbstractionStarter]: For program point L95(lines 95 107) no Hoare annotation was computed. [2019-11-20 01:10:58,274 INFO L444 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2019-11-20 01:10:58,274 INFO L444 ceAbstractionStarter]: For program point L47(lines 47 48) no Hoare annotation was computed. [2019-11-20 01:10:58,274 INFO L444 ceAbstractionStarter]: For program point L43(lines 43 44) no Hoare annotation was computed. [2019-11-20 01:10:58,274 INFO L444 ceAbstractionStarter]: For program point L68(lines 68 84) no Hoare annotation was computed. [2019-11-20 01:10:58,284 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,285 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,285 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,285 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,286 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,286 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,286 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,291 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,292 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,292 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,292 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,293 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,293 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,293 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,294 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,294 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,295 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,295 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,295 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,295 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,296 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,296 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,296 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,296 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,297 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,297 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,297 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,297 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,298 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,298 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,298 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,298 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 01:10:58 BoogieIcfgContainer [2019-11-20 01:10:58,300 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 01:10:58,301 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 01:10:58,301 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 01:10:58,301 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 01:10:58,301 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:10:34" (3/4) ... [2019-11-20 01:10:58,305 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 01:10:58,319 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-20 01:10:58,320 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-20 01:10:58,321 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 01:10:58,350 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result [2019-11-20 01:10:58,350 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && 1bv32 == \result) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result [2019-11-20 01:10:58,400 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5fdae7fc-a634-45bf-b256-953b621dcf77/bin/uautomizer/witness.graphml [2019-11-20 01:10:58,401 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 01:10:58,402 INFO L168 Benchmark]: Toolchain (without parser) took 37966.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 960.4 MB in the beginning and 966.6 MB in the end (delta: -6.2 MB). Peak memory consumption was 153.2 MB. Max. memory is 11.5 GB. [2019-11-20 01:10:58,403 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:10:58,404 INFO L168 Benchmark]: CACSL2BoogieTranslator took 595.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -189.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-20 01:10:58,404 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.25 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-20 01:10:58,405 INFO L168 Benchmark]: Boogie Preprocessor took 51.48 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2019-11-20 01:10:58,406 INFO L168 Benchmark]: RCFGBuilder took 13183.34 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: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-20 01:10:58,406 INFO L168 Benchmark]: TraceAbstraction took 23946.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 966.6 MB in the end (delta: 144.3 MB). Peak memory consumption was 144.3 MB. Max. memory is 11.5 GB. [2019-11-20 01:10:58,407 INFO L168 Benchmark]: Witness Printer took 100.24 ms. Allocated memory is still 1.2 GB. Free memory is still 966.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:10:58,409 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 595.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -189.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 84.25 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.48 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: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 13183.34 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: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 23946.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 966.6 MB in the end (delta: 144.3 MB). Peak memory consumption was 144.3 MB. Max. memory is 11.5 GB. * Witness Printer took 100.24 ms. Allocated memory is still 1.2 GB. Free memory is still 966.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 124]: 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: 111]: Loop Invariant [2019-11-20 01:10:58,421 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,421 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,422 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,422 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,422 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,422 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,423 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,423 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,424 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,424 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,424 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,424 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,425 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,425 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && 1bv32 == \result) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result - InvariantResult [Line: 32]: Loop Invariant [2019-11-20 01:10:58,426 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,426 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,426 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,427 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,427 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,427 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,427 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,428 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,428 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,429 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,429 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,429 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,429 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,430 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) && ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 36]: Loop Invariant [2019-11-20 01:10:58,431 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,431 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,432 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-20 01:10:58,432 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Result: SAFE, OverallTime: 23.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 15.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 92 SDtfs, 112 SDslu, 198 SDs, 0 SdLazy, 100 SolverSat, 12 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 14.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 72 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 76 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 92 ConstructedInterpolants, 2 QuantifiedInterpolants, 6138 SizeOfPredicates, 19 NumberOfNonLiveVariables, 174 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...