./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash db1a0648fa242e1728c1c06c3b545dcc4e795062 ................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash db1a0648fa242e1728c1c06c3b545dcc4e795062 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:06:17,734 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:06:17,736 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:06:17,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:06:17,817 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:06:17,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:06:17,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:06:17,835 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:06:17,840 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:06:17,845 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:06:17,846 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:06:17,849 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:06:17,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:06:17,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:06:17,854 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:06:17,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:06:17,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:06:17,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:06:17,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:06:17,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:06:17,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:06:17,870 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:06:17,871 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:06:17,873 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:06:17,880 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:06:17,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:06:17,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:06:17,885 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:06:17,886 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:06:17,887 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:06:17,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:06:17,888 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:06:17,890 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:06:17,891 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:06:17,892 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:06:17,892 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:06:17,893 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:06:17,893 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:06:17,893 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:06:17,894 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:06:17,895 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:06:17,899 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:06:17,935 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:06:17,935 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:06:17,936 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:06:17,936 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:06:17,936 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:06:17,937 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:06:17,937 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:06:17,937 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:06:17,938 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:06:17,938 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:06:17,938 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:06:17,938 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:06:17,938 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:06:17,939 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:06:17,939 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:06:17,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:06:17,940 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:06:17,940 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:06:17,940 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:06:17,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:06:17,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:06:17,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:06:17,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:06:17,942 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:06:17,942 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:06:17,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:06:17,942 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:06:17,942 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:06:17,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:06:17,943 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:06:17,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:06:17,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:06:17,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:06:17,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:06:17,944 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:06:17,944 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:06:17,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:06:17,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:06:17,945 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:06:17,945 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:06:17,945 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db1a0648fa242e1728c1c06c3b545dcc4e795062 [2020-11-22 13:06:18,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:06:18,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:06:18,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:06:18,246 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:06:18,247 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:06:18,248 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2020-11-22 13:06:18,313 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan/data/b5096c715/78c88509750c4d9fa0ea70b83f6e186c/FLAG2d773c870 [2020-11-22 13:06:18,745 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:06:18,746 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2020-11-22 13:06:18,753 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan/data/b5096c715/78c88509750c4d9fa0ea70b83f6e186c/FLAG2d773c870 [2020-11-22 13:06:19,129 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan/data/b5096c715/78c88509750c4d9fa0ea70b83f6e186c [2020-11-22 13:06:19,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:06:19,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:06:19,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:19,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:06:19,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:06:19,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:19" (1/1) ... [2020-11-22 13:06:19,144 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55b11754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:19, skipping insertion in model container [2020-11-22 13:06:19,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:19" (1/1) ... [2020-11-22 13:06:19,157 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:06:19,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:06:19,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:19,410 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:06:19,452 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:19,489 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:06:19,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:19 WrapperNode [2020-11-22 13:06:19,490 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:19,491 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:06:19,491 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:06:19,491 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:06:19,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:19" (1/1) ... [2020-11-22 13:06:19,509 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:19" (1/1) ... [2020-11-22 13:06:19,542 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:06:19,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:06:19,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:06:19,543 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:06:19,551 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:19" (1/1) ... [2020-11-22 13:06:19,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:19" (1/1) ... [2020-11-22 13:06:19,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:19" (1/1) ... [2020-11-22 13:06:19,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:19" (1/1) ... [2020-11-22 13:06:19,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:19" (1/1) ... [2020-11-22 13:06:19,573 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:19" (1/1) ... [2020-11-22 13:06:19,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:19" (1/1) ... [2020-11-22 13:06:19,580 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:06:19,581 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:06:19,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:06:19,581 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:06:19,582 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan/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 [2020-11-22 13:06:19,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 13:06:19,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:06:19,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-22 13:06:19,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-22 13:06:19,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-22 13:06:19,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:06:19,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:06:19,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-22 13:06:19,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 13:06:20,463 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:06:20,464 INFO L298 CfgBuilder]: Removed 32 assume(true) statements. [2020-11-22 13:06:20,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:20 BoogieIcfgContainer [2020-11-22 13:06:20,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:06:20,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:06:20,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:06:20,471 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:06:20,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:06:19" (1/3) ... [2020-11-22 13:06:20,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@516f55ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:06:20, skipping insertion in model container [2020-11-22 13:06:20,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:19" (2/3) ... [2020-11-22 13:06:20,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@516f55ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:06:20, skipping insertion in model container [2020-11-22 13:06:20,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:20" (3/3) ... [2020-11-22 13:06:20,477 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0270a.c [2020-11-22 13:06:20,491 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:06:20,496 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:06:20,510 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 13:06:20,548 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:06:20,548 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:06:20,548 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:06:20,548 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:06:20,548 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:06:20,548 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:06:20,548 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:06:20,549 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:06:20,566 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-11-22 13:06:20,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-22 13:06:20,571 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:20,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:20,572 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:20,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:20,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1760934509, now seen corresponding path program 1 times [2020-11-22 13:06:20,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:20,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002212491] [2020-11-22 13:06:20,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:20,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:20,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002212491] [2020-11-22 13:06:20,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:20,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:06:20,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449418603] [2020-11-22 13:06:20,762 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:06:20,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:20,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:06:20,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:06:20,779 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 2 states. [2020-11-22 13:06:20,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:20,806 INFO L93 Difference]: Finished difference Result 91 states and 149 transitions. [2020-11-22 13:06:20,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:06:20,807 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-22 13:06:20,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:20,826 INFO L225 Difference]: With dead ends: 91 [2020-11-22 13:06:20,826 INFO L226 Difference]: Without dead ends: 44 [2020-11-22 13:06:20,828 INFO L677 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 [2020-11-22 13:06:20,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-11-22 13:06:20,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-11-22 13:06:20,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-11-22 13:06:20,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2020-11-22 13:06:20,856 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 8 [2020-11-22 13:06:20,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:20,856 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2020-11-22 13:06:20,857 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:06:20,857 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2020-11-22 13:06:20,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-22 13:06:20,857 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:20,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:20,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 13:06:20,858 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:20,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:20,859 INFO L82 PathProgramCache]: Analyzing trace with hash -971347180, now seen corresponding path program 1 times [2020-11-22 13:06:20,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:20,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128092583] [2020-11-22 13:06:20,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:20,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:06:20,894 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:06:20,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:06:20,920 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:06:20,943 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 13:06:20,943 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:06:20,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 13:06:20,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:06:20 BoogieIcfgContainer [2020-11-22 13:06:20,974 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:06:20,974 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:06:20,975 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:06:20,975 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:06:20,975 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:20" (3/4) ... [2020-11-22 13:06:20,978 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-22 13:06:20,978 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:06:20,980 INFO L168 Benchmark]: Toolchain (without parser) took 1846.71 ms. Allocated memory is still 119.5 MB. Free memory was 91.9 MB in the beginning and 55.4 MB in the end (delta: 36.5 MB). Peak memory consumption was 37.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:20,980 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 90.2 MB. Free memory is still 49.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:20,981 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.75 ms. Allocated memory is still 119.5 MB. Free memory was 91.6 MB in the beginning and 93.6 MB in the end (delta: -1.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:20,982 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.37 ms. Allocated memory is still 119.5 MB. Free memory was 93.6 MB in the beginning and 91.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:20,983 INFO L168 Benchmark]: Boogie Preprocessor took 37.68 ms. Allocated memory is still 119.5 MB. Free memory was 91.0 MB in the beginning and 88.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:20,983 INFO L168 Benchmark]: RCFGBuilder took 884.82 ms. Allocated memory is still 119.5 MB. Free memory was 88.9 MB in the beginning and 79.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 34.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:20,984 INFO L168 Benchmark]: TraceAbstraction took 506.63 ms. Allocated memory is still 119.5 MB. Free memory was 79.4 MB in the beginning and 55.4 MB in the end (delta: 23.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:20,984 INFO L168 Benchmark]: Witness Printer took 3.66 ms. Allocated memory is still 119.5 MB. Free memory is still 55.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:20,988 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 90.2 MB. Free memory is still 49.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 350.75 ms. Allocated memory is still 119.5 MB. Free memory was 91.6 MB in the beginning and 93.6 MB in the end (delta: -1.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.37 ms. Allocated memory is still 119.5 MB. Free memory was 93.6 MB in the beginning and 91.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.68 ms. Allocated memory is still 119.5 MB. Free memory was 91.0 MB in the beginning and 88.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 884.82 ms. Allocated memory is still 119.5 MB. Free memory was 88.9 MB in the beginning and 79.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 34.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 506.63 ms. Allocated memory is still 119.5 MB. Free memory was 79.4 MB in the beginning and 55.4 MB in the end (delta: 23.9 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Witness Printer took 3.66 ms. Allocated memory is still 119.5 MB. Free memory is still 55.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 199, overapproximation of someUnaryDOUBLEoperation at line 113, overapproximation of bitwiseAnd at line 127, overapproximation of someUnaryFLOAToperation at line 111, overapproximation of someBinaryArithmeticFLOAToperation at line 130. Possible FailurePath: [L26] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L109-L117] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; [L195] float x = -0.0f; [L120] float t, w, p, q, c, r, s; [L121] __int32_t hx, ix; VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L123] ieee_float_shape_type gf_u; [L124] gf_u.value = (x) [L125] EXPR gf_u.word [L125] (hx) = gf_u.word [L127] ix = hx & 0x7fffffff VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L128] COND TRUE ix == 0x3f800000 [L130] return x * pio2_hi_asin + x * pio2_lo_asin; VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L196] float res = __ieee754_asinf(x); [L199] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L199] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L3] __assert_fail("0", "float_req_bl_0270a.c", 3, "reach_error") VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 58 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=46occurred 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, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 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, ACCELERATED_INTERPOLATION: 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 0.2.0-a4ecdab [2020-11-22 13:06:23,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:06:23,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:06:23,466 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:06:23,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:06:23,473 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:06:23,475 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:06:23,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:06:23,483 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:06:23,491 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:06:23,492 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:06:23,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:06:23,498 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:06:23,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:06:23,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:06:23,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:06:23,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:06:23,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:06:23,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:06:23,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:06:23,512 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:06:23,513 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:06:23,520 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:06:23,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:06:23,530 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:06:23,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:06:23,531 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:06:23,533 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:06:23,534 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:06:23,535 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:06:23,535 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:06:23,536 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:06:23,538 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:06:23,539 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:06:23,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:06:23,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:06:23,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:06:23,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:06:23,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:06:23,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:06:23,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:06:23,544 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:06:23,586 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:06:23,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:06:23,588 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:06:23,589 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:06:23,589 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:06:23,589 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:06:23,589 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:06:23,589 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:06:23,590 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:06:23,591 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:06:23,592 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:06:23,592 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:06:23,592 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:06:23,592 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:06:23,592 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:06:23,593 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:06:23,593 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:06:23,593 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:06:23,593 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:06:23,593 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:06:23,594 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:06:23,594 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:06:23,594 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:06:23,594 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:06:23,595 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:06:23,595 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:06:23,595 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:06:23,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:06:23,596 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:06:23,596 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:06:23,596 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:06:23,596 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:06:23,596 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:06:23,596 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:06:23,597 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:06:23,597 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:06:23,597 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db1a0648fa242e1728c1c06c3b545dcc4e795062 [2020-11-22 13:06:23,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:06:23,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:06:24,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:06:24,005 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:06:24,006 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:06:24,007 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2020-11-22 13:06:24,078 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan/data/99ec015ea/ea31d4789ad34b9b824e0c2d8724d6d9/FLAGf8fd420ff [2020-11-22 13:06:24,663 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:06:24,663 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2020-11-22 13:06:24,670 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan/data/99ec015ea/ea31d4789ad34b9b824e0c2d8724d6d9/FLAGf8fd420ff [2020-11-22 13:06:24,984 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan/data/99ec015ea/ea31d4789ad34b9b824e0c2d8724d6d9 [2020-11-22 13:06:24,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:06:24,988 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:06:24,989 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:24,989 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:06:24,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:06:24,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:24" (1/1) ... [2020-11-22 13:06:25,001 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a1f6fb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:24, skipping insertion in model container [2020-11-22 13:06:25,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:24" (1/1) ... [2020-11-22 13:06:25,009 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:06:25,054 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:06:25,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:25,235 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:06:25,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:25,308 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:06:25,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:25 WrapperNode [2020-11-22 13:06:25,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:25,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:06:25,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:06:25,310 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:06:25,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:25" (1/1) ... [2020-11-22 13:06:25,331 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:25" (1/1) ... [2020-11-22 13:06:25,369 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:06:25,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:06:25,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:06:25,370 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:06:25,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:25" (1/1) ... [2020-11-22 13:06:25,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:25" (1/1) ... [2020-11-22 13:06:25,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:25" (1/1) ... [2020-11-22 13:06:25,385 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:25" (1/1) ... [2020-11-22 13:06:25,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:25" (1/1) ... [2020-11-22 13:06:25,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:25" (1/1) ... [2020-11-22 13:06:25,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:25" (1/1) ... [2020-11-22 13:06:25,416 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:06:25,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:06:25,417 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:06:25,417 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:06:25,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan/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 [2020-11-22 13:06:25,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:06:25,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:06:25,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-22 13:06:25,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-22 13:06:25,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:06:25,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:06:25,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-22 13:06:25,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-22 13:06:25,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 13:06:36,607 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:06:36,607 INFO L298 CfgBuilder]: Removed 32 assume(true) statements. [2020-11-22 13:06:36,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:36 BoogieIcfgContainer [2020-11-22 13:06:36,609 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:06:36,610 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:06:36,611 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:06:36,613 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:06:36,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:06:24" (1/3) ... [2020-11-22 13:06:36,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@493c33e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:06:36, skipping insertion in model container [2020-11-22 13:06:36,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:25" (2/3) ... [2020-11-22 13:06:36,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@493c33e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:06:36, skipping insertion in model container [2020-11-22 13:06:36,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:36" (3/3) ... [2020-11-22 13:06:36,616 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0270a.c [2020-11-22 13:06:36,626 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:06:36,631 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:06:36,645 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 13:06:36,668 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:06:36,668 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:06:36,668 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:06:36,668 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:06:36,668 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:06:36,669 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:06:36,669 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:06:36,669 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:06:36,678 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2020-11-22 13:06:36,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-22 13:06:36,683 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:36,683 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:36,684 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:36,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:36,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1900514974, now seen corresponding path program 1 times [2020-11-22 13:06:36,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:06:36,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1506346659] [2020-11-22 13:06:36,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan/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 [2020-11-22 13:06:37,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:37,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 13:06:37,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:37,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:37,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:37,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:37,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1506346659] [2020-11-22 13:06:37,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:37,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 13:06:37,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327524165] [2020-11-22 13:06:37,442 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:06:37,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:06:37,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:06:37,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:06:37,456 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 2 states. [2020-11-22 13:06:37,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:37,483 INFO L93 Difference]: Finished difference Result 119 states and 193 transitions. [2020-11-22 13:06:37,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:06:37,484 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-22 13:06:37,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:37,500 INFO L225 Difference]: With dead ends: 119 [2020-11-22 13:06:37,501 INFO L226 Difference]: Without dead ends: 57 [2020-11-22 13:06:37,503 INFO L677 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 [2020-11-22 13:06:37,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-11-22 13:06:37,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-11-22 13:06:37,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-11-22 13:06:37,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 75 transitions. [2020-11-22 13:06:37,537 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 75 transitions. Word has length 9 [2020-11-22 13:06:37,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:37,537 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 75 transitions. [2020-11-22 13:06:37,538 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:06:37,538 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 75 transitions. [2020-11-22 13:06:37,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-22 13:06:37,538 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:37,539 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:37,761 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:06:37,762 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:37,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:37,763 INFO L82 PathProgramCache]: Analyzing trace with hash 1487835839, now seen corresponding path program 1 times [2020-11-22 13:06:37,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:06:37,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1668457124] [2020-11-22 13:06:37,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan/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 [2020-11-22 13:06:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:38,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-22 13:06:38,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:38,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:38,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:38,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:38,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1668457124] [2020-11-22 13:06:38,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:38,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-22 13:06:38,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572097001] [2020-11-22 13:06:38,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 13:06:38,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:06:38,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 13:06:38,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-22 13:06:38,605 INFO L87 Difference]: Start difference. First operand 57 states and 75 transitions. Second operand 8 states. [2020-11-22 13:06:39,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:39,744 INFO L93 Difference]: Finished difference Result 104 states and 135 transitions. [2020-11-22 13:06:39,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:06:39,745 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2020-11-22 13:06:39,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:39,746 INFO L225 Difference]: With dead ends: 104 [2020-11-22 13:06:39,746 INFO L226 Difference]: Without dead ends: 57 [2020-11-22 13:06:39,750 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-22 13:06:39,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-11-22 13:06:39,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-11-22 13:06:39,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-11-22 13:06:39,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 69 transitions. [2020-11-22 13:06:39,759 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 69 transitions. Word has length 10 [2020-11-22 13:06:39,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:39,760 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 69 transitions. [2020-11-22 13:06:39,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 13:06:39,760 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 69 transitions. [2020-11-22 13:06:39,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-22 13:06:39,761 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:39,761 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:39,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 13:06:39,977 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:39,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:39,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1089938183, now seen corresponding path program 1 times [2020-11-22 13:06:39,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:06:39,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1352678076] [2020-11-22 13:06:39,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan/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 [2020-11-22 13:06:40,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:40,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 13:06:40,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:40,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:40,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:40,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:40,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1352678076] [2020-11-22 13:06:40,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:40,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2020-11-22 13:06:40,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440734912] [2020-11-22 13:06:40,618 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-22 13:06:40,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:06:40,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-22 13:06:40,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:06:40,619 INFO L87 Difference]: Start difference. First operand 57 states and 69 transitions. Second operand 7 states. [2020-11-22 13:06:40,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:40,822 INFO L93 Difference]: Finished difference Result 69 states and 80 transitions. [2020-11-22 13:06:40,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:06:40,822 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-11-22 13:06:40,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:40,823 INFO L225 Difference]: With dead ends: 69 [2020-11-22 13:06:40,823 INFO L226 Difference]: Without dead ends: 66 [2020-11-22 13:06:40,824 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-11-22 13:06:40,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-11-22 13:06:40,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 59. [2020-11-22 13:06:40,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-11-22 13:06:40,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 71 transitions. [2020-11-22 13:06:40,835 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 71 transitions. Word has length 14 [2020-11-22 13:06:40,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:40,835 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 71 transitions. [2020-11-22 13:06:40,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-22 13:06:40,835 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2020-11-22 13:06:40,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-22 13:06:40,836 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:40,836 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:41,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 13:06:41,048 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:41,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:41,048 INFO L82 PathProgramCache]: Analyzing trace with hash 980104924, now seen corresponding path program 1 times [2020-11-22 13:06:41,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:06:41,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1540610575] [2020-11-22 13:06:41,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan/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 [2020-11-22 13:06:41,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:41,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 14 conjunts are in the unsatisfiable core [2020-11-22 13:06:41,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:41,612 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-22 13:06:41,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:41,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:41,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:41,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1540610575] [2020-11-22 13:06:41,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:41,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2020-11-22 13:06:41,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871668917] [2020-11-22 13:06:41,965 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-22 13:06:41,965 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:06:41,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-22 13:06:41,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-11-22 13:06:41,966 INFO L87 Difference]: Start difference. First operand 59 states and 71 transitions. Second operand 14 states. [2020-11-22 13:06:42,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:42,400 INFO L93 Difference]: Finished difference Result 66 states and 77 transitions. [2020-11-22 13:06:42,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-22 13:06:42,400 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-11-22 13:06:42,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:42,401 INFO L225 Difference]: With dead ends: 66 [2020-11-22 13:06:42,401 INFO L226 Difference]: Without dead ends: 57 [2020-11-22 13:06:42,402 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2020-11-22 13:06:42,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-11-22 13:06:42,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-11-22 13:06:42,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-11-22 13:06:42,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 68 transitions. [2020-11-22 13:06:42,411 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 68 transitions. Word has length 18 [2020-11-22 13:06:42,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:42,411 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 68 transitions. [2020-11-22 13:06:42,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-22 13:06:42,411 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 68 transitions. [2020-11-22 13:06:42,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-22 13:06:42,413 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:42,413 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:42,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-22 13:06:42,617 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:42,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:42,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1296197232, now seen corresponding path program 1 times [2020-11-22 13:06:42,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:06:42,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1122984184] [2020-11-22 13:06:42,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-22 13:06:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:44,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 13:06:44,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:44,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:44,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:45,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:45,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1122984184] [2020-11-22 13:06:45,072 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:45,072 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-22 13:06:45,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628904328] [2020-11-22 13:06:45,073 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:06:45,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:06:45,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:06:45,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:06:45,074 INFO L87 Difference]: Start difference. First operand 57 states and 68 transitions. Second operand 6 states. [2020-11-22 13:06:45,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:45,149 INFO L93 Difference]: Finished difference Result 57 states and 68 transitions. [2020-11-22 13:06:45,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:06:45,152 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-11-22 13:06:45,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:45,152 INFO L225 Difference]: With dead ends: 57 [2020-11-22 13:06:45,152 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 13:06:45,152 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:06:45,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 13:06:45,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 13:06:45,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 13:06:45,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 13:06:45,153 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2020-11-22 13:06:45,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:45,153 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 13:06:45,153 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:06:45,153 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 13:06:45,153 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 13:06:45,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-22 13:06:45,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-22 13:06:45,616 INFO L270 CegarLoopResult]: At program point L184(lines 119 185) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start___ieee754_asinf_#res| .cse0) (exists ((ULTIMATE.start___ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_asinf_~ix~2 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_asinf_~hx~1)) (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1))))) (= ULTIMATE.start___ieee754_asinf_~x .cse0) (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1))))) [2020-11-22 13:06:45,616 INFO L274 CegarLoopResult]: For program point L135(lines 135 136) no Hoare annotation was computed. [2020-11-22 13:06:45,616 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-22 13:06:45,616 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-22 13:06:45,616 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-22 13:06:45,616 INFO L274 CegarLoopResult]: For program point L87-1(lines 87 91) no Hoare annotation was computed. [2020-11-22 13:06:45,616 INFO L270 CegarLoopResult]: At program point L87-2(lines 87 91) the Hoare annotation is: false [2020-11-22 13:06:45,617 INFO L274 CegarLoopResult]: For program point L87-3(lines 87 91) no Hoare annotation was computed. [2020-11-22 13:06:45,617 INFO L274 CegarLoopResult]: For program point L170(lines 170 174) no Hoare annotation was computed. [2020-11-22 13:06:45,617 INFO L274 CegarLoopResult]: For program point L170-1(lines 162 180) no Hoare annotation was computed. [2020-11-22 13:06:45,617 INFO L274 CegarLoopResult]: For program point L170-2(lines 170 174) no Hoare annotation was computed. [2020-11-22 13:06:45,617 INFO L277 CegarLoopResult]: At program point L204(lines 187 205) the Hoare annotation is: true [2020-11-22 13:06:45,617 INFO L274 CegarLoopResult]: For program point L122-1(lines 122 126) no Hoare annotation was computed. [2020-11-22 13:06:45,617 INFO L270 CegarLoopResult]: At program point L122-2(lines 122 126) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start___ieee754_asinf_~x (fp.neg (_ +zero 8 24))) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_asin~0) (= ~huge_asin~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)))) [2020-11-22 13:06:45,617 INFO L274 CegarLoopResult]: For program point L56(lines 56 57) no Hoare annotation was computed. [2020-11-22 13:06:45,618 INFO L274 CegarLoopResult]: For program point L122-3(lines 122 126) no Hoare annotation was computed. [2020-11-22 13:06:45,618 INFO L270 CegarLoopResult]: At program point L23(lines 14 24) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and |ULTIMATE.start_main_#t~short28| (= (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= |ULTIMATE.start___ieee754_asinf_#res| .cse0) (exists ((ULTIMATE.start___ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_asinf_~ix~2 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_asinf_~hx~1)) (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1))))) (= .cse0 ULTIMATE.start___signbit_float_~x) (= ULTIMATE.start___ieee754_asinf_~x .cse0) (= .cse0 ULTIMATE.start_main_~res~0) (= (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0)) .cse0) (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1))))) [2020-11-22 13:06:45,618 INFO L274 CegarLoopResult]: For program point L56-2(lines 56 57) no Hoare annotation was computed. [2020-11-22 13:06:45,618 INFO L270 CegarLoopResult]: At program point L106(lines 94 107) the Hoare annotation is: false [2020-11-22 13:06:45,618 INFO L274 CegarLoopResult]: For program point L40(lines 40 41) no Hoare annotation was computed. [2020-11-22 13:06:45,618 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-22 13:06:45,618 INFO L274 CegarLoopResult]: For program point L75(lines 75 84) no Hoare annotation was computed. [2020-11-22 13:06:45,618 INFO L270 CegarLoopResult]: At program point L92(lines 28 93) the Hoare annotation is: false [2020-11-22 13:06:45,619 INFO L274 CegarLoopResult]: For program point L43(lines 43 44) no Hoare annotation was computed. [2020-11-22 13:06:45,619 INFO L274 CegarLoopResult]: For program point L159(lines 159 180) no Hoare annotation was computed. [2020-11-22 13:06:45,619 INFO L274 CegarLoopResult]: For program point L159-2(lines 119 185) no Hoare annotation was computed. [2020-11-22 13:06:45,619 INFO L274 CegarLoopResult]: For program point L77(lines 77 83) no Hoare annotation was computed. [2020-11-22 13:06:45,619 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-22 13:06:45,619 INFO L274 CegarLoopResult]: For program point L45(lines 45 46) no Hoare annotation was computed. [2020-11-22 13:06:45,619 INFO L274 CegarLoopResult]: For program point L128(lines 128 148) no Hoare annotation was computed. [2020-11-22 13:06:45,619 INFO L274 CegarLoopResult]: For program point L79(lines 79 82) no Hoare annotation was computed. [2020-11-22 13:06:45,619 INFO L274 CegarLoopResult]: For program point L96-1(lines 96 100) no Hoare annotation was computed. [2020-11-22 13:06:45,620 INFO L270 CegarLoopResult]: At program point L96-2(lines 96 100) the Hoare annotation is: false [2020-11-22 13:06:45,620 INFO L270 CegarLoopResult]: At program point L64-2(lines 64 73) the Hoare annotation is: false [2020-11-22 13:06:45,620 INFO L274 CegarLoopResult]: For program point L64-3(lines 28 93) no Hoare annotation was computed. [2020-11-22 13:06:45,620 INFO L274 CegarLoopResult]: For program point L131(lines 131 148) no Hoare annotation was computed. [2020-11-22 13:06:45,620 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-22 13:06:45,620 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-22 13:06:45,620 INFO L274 CegarLoopResult]: For program point L49(lines 49 53) no Hoare annotation was computed. [2020-11-22 13:06:45,620 INFO L274 CegarLoopResult]: For program point L49-2(lines 49 53) no Hoare annotation was computed. [2020-11-22 13:06:45,620 INFO L274 CegarLoopResult]: For program point L165-1(lines 165 169) no Hoare annotation was computed. [2020-11-22 13:06:45,621 INFO L270 CegarLoopResult]: At program point L165-2(lines 165 169) the Hoare annotation is: false [2020-11-22 13:06:45,621 INFO L274 CegarLoopResult]: For program point L66(lines 66 70) no Hoare annotation was computed. [2020-11-22 13:06:45,621 INFO L274 CegarLoopResult]: For program point L33-1(lines 33 37) no Hoare annotation was computed. [2020-11-22 13:06:45,621 INFO L274 CegarLoopResult]: For program point L66-2(lines 66 70) no Hoare annotation was computed. [2020-11-22 13:06:45,621 INFO L270 CegarLoopResult]: At program point L33-2(lines 33 37) the Hoare annotation is: false [2020-11-22 13:06:45,621 INFO L274 CegarLoopResult]: For program point L33-3(lines 33 37) no Hoare annotation was computed. [2020-11-22 13:06:45,621 INFO L274 CegarLoopResult]: For program point L50-2(lines 50 51) no Hoare annotation was computed. [2020-11-22 13:06:45,621 INFO L274 CegarLoopResult]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2020-11-22 13:06:45,621 INFO L270 CegarLoopResult]: At program point L50-3(lines 50 51) the Hoare annotation is: false [2020-11-22 13:06:45,622 INFO L270 CegarLoopResult]: At program point L17-2(lines 17 21) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and |ULTIMATE.start_main_#t~short28| (= |ULTIMATE.start___ieee754_asinf_#res| .cse0) (exists ((ULTIMATE.start___ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_asinf_~ix~2 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_asinf_~hx~1)) (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1))))) (= .cse0 ULTIMATE.start___signbit_float_~x) (= ULTIMATE.start___ieee754_asinf_~x .cse0) (= .cse0 ULTIMATE.start_main_~res~0) (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1))))) [2020-11-22 13:06:45,622 INFO L274 CegarLoopResult]: For program point L50-4(lines 50 51) no Hoare annotation was computed. [2020-11-22 13:06:45,622 INFO L274 CegarLoopResult]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2020-11-22 13:06:45,622 INFO L274 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-11-22 13:06:45,622 INFO L274 CegarLoopResult]: For program point L133(lines 133 148) no Hoare annotation was computed. [2020-11-22 13:06:45,622 INFO L274 CegarLoopResult]: For program point L199-2(lines 199 202) no Hoare annotation was computed. [2020-11-22 13:06:45,622 INFO L274 CegarLoopResult]: For program point L133-1(lines 133 148) no Hoare annotation was computed. [2020-11-22 13:06:45,622 INFO L274 CegarLoopResult]: For program point L134(lines 134 147) no Hoare annotation was computed. [2020-11-22 13:06:45,622 INFO L274 CegarLoopResult]: For program point L101(lines 101 105) no Hoare annotation was computed. [2020-11-22 13:06:45,623 INFO L274 CegarLoopResult]: For program point L101-1(lines 94 107) no Hoare annotation was computed. [2020-11-22 13:06:45,623 INFO L274 CegarLoopResult]: For program point L101-2(lines 101 105) no Hoare annotation was computed. [2020-11-22 13:06:45,636 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,637 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,637 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,637 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,645 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,645 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,645 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,645 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,647 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,647 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,648 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,648 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,649 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,649 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,649 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,649 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,657 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,657 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,658 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,658 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,667 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,667 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,667 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,667 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,669 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:45,669 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:45,669 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:45,669 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:45,670 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:45,670 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:45,671 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:45,671 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:45,671 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:45,671 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:45,672 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:45,672 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:45,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:06:45 BoogieIcfgContainer [2020-11-22 13:06:45,674 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:06:45,675 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:06:45,675 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:06:45,675 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:06:45,675 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:36" (3/4) ... [2020-11-22 13:06:45,678 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 13:06:45,696 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-22 13:06:45,696 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-22 13:06:45,697 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 13:06:45,697 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 13:06:45,721 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]))) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) [2020-11-22 13:06:45,723 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((aux-res == -0.0f && __signbit_float(res) == 1-aux && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]))) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) [2020-11-22 13:06:45,724 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((aux-res == -0.0f && __signbit_float(res) == 1-aux && ~bvadd64(\result, 4294967295bv32) == 0bv32) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]))) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) [2020-11-22 13:06:45,777 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_31ae442e-499f-4110-ba31-ef3b472d0ba8/bin/utaipan/witness.graphml [2020-11-22 13:06:45,779 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:06:45,781 INFO L168 Benchmark]: Toolchain (without parser) took 20792.34 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 40.3 MB in the beginning and 49.5 MB in the end (delta: -9.2 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:45,781 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 58.7 MB. Free memory is still 41.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:45,782 INFO L168 Benchmark]: CACSL2BoogieTranslator took 320.21 ms. Allocated memory is still 58.7 MB. Free memory was 40.1 MB in the beginning and 42.2 MB in the end (delta: -2.1 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:45,782 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.21 ms. Allocated memory is still 58.7 MB. Free memory was 42.2 MB in the beginning and 39.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:45,783 INFO L168 Benchmark]: Boogie Preprocessor took 46.65 ms. Allocated memory is still 58.7 MB. Free memory was 39.8 MB in the beginning and 37.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:45,783 INFO L168 Benchmark]: RCFGBuilder took 11192.03 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 37.3 MB in the beginning and 56.0 MB in the end (delta: -18.8 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:45,783 INFO L168 Benchmark]: TraceAbstraction took 9063.80 ms. Allocated memory is still 75.5 MB. Free memory was 55.6 MB in the beginning and 55.2 MB in the end (delta: 482.5 kB). Peak memory consumption was 32.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:45,784 INFO L168 Benchmark]: Witness Printer took 104.50 ms. Allocated memory is still 75.5 MB. Free memory was 55.2 MB in the beginning and 49.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:45,786 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 58.7 MB. Free memory is still 41.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 320.21 ms. Allocated memory is still 58.7 MB. Free memory was 40.1 MB in the beginning and 42.2 MB in the end (delta: -2.1 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.21 ms. Allocated memory is still 58.7 MB. Free memory was 42.2 MB in the beginning and 39.8 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.65 ms. Allocated memory is still 58.7 MB. Free memory was 39.8 MB in the beginning and 37.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 11192.03 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 37.3 MB in the beginning and 56.0 MB in the end (delta: -18.8 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9063.80 ms. Allocated memory is still 75.5 MB. Free memory was 55.6 MB in the beginning and 55.2 MB in the end (delta: 482.5 kB). Peak memory consumption was 32.1 MB. Max. memory is 16.1 GB. * Witness Printer took 104.50 ms. Allocated memory is still 75.5 MB. Free memory was 55.2 MB in the beginning and 49.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 17]: Loop Invariant [2020-11-22 13:06:45,793 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,793 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,793 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,793 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,794 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,794 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,794 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,794 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: (((((aux-res == -0.0f && __signbit_float(res) == 1-aux && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]))) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant [2020-11-22 13:06:45,796 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,796 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,796 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,796 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,798 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,798 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,799 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,802 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: (((((((aux-res == -0.0f && __signbit_float(res) == 1-aux && ~bvadd64(\result, 4294967295bv32) == 0bv32) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]))) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) - InvariantResult [Line: 119]: Loop Invariant [2020-11-22 13:06:45,803 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,807 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,807 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,807 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,808 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,808 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,808 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-11-22 13:06:45,808 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: ((\result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]))) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) - InvariantResult [Line: 122]: Loop Invariant [2020-11-22 13:06:45,809 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:45,809 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:45,809 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:45,809 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:45,809 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:45,810 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:45,810 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 13:06:45,810 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:45,810 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:45,810 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:45,810 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 13:06:45,810 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_asin) && huge_asin == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 267 SDtfs, 516 SDslu, 613 SDs, 0 SdLazy, 108 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 169 GetRequests, 129 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred 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, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 13 PreInvPairs, 18 NumberOfFragments, 172 HoareAnnotationTreeSize, 13 FomulaSimplifications, 88 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 13 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.7s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 158 ConstructedInterpolants, 13 QuantifiedInterpolants, 16357 SizeOfPredicates, 28 NumberOfNonLiveVariables, 393 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...