./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0920b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0920b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/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 258242508bb2f0d624fb3f4a66fd347aa6adb575 ...................................................................................................................................................................................................................................................................................................................... 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_f35ee13b-7ff8-49af-8996-5776923dc88a/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0920b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/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 258242508bb2f0d624fb3f4a66fd347aa6adb575 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 07:43:31,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 07:43:31,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 07:43:31,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 07:43:31,723 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 07:43:31,725 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 07:43:31,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 07:43:31,728 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 07:43:31,731 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 07:43:31,732 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 07:43:31,733 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 07:43:31,734 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 07:43:31,734 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 07:43:31,735 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 07:43:31,736 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 07:43:31,738 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 07:43:31,738 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 07:43:31,739 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 07:43:31,741 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 07:43:31,743 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 07:43:31,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 07:43:31,746 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 07:43:31,747 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 07:43:31,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 07:43:31,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 07:43:31,752 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 07:43:31,752 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 07:43:31,753 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 07:43:31,753 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 07:43:31,754 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 07:43:31,755 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 07:43:31,756 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 07:43:31,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 07:43:31,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 07:43:31,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 07:43:31,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 07:43:31,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 07:43:31,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 07:43:31,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 07:43:31,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 07:43:31,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 07:43:31,760 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 07:43:31,781 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 07:43:31,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 07:43:31,782 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 07:43:31,783 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 07:43:31,783 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 07:43:31,783 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 07:43:31,783 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 07:43:31,783 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 07:43:31,783 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 07:43:31,784 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 07:43:31,784 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 07:43:31,784 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 07:43:31,784 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 07:43:31,784 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 07:43:31,785 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 07:43:31,785 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 07:43:31,785 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 07:43:31,786 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 07:43:31,786 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 07:43:31,786 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 07:43:31,786 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 07:43:31,786 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 07:43:31,786 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 07:43:31,787 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 07:43:31,787 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 07:43:31,787 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 07:43:31,787 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 07:43:31,787 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 07:43:31,787 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 07:43:31,787 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 07:43:31,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 07:43:31,788 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 07:43:31,788 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 07:43:31,788 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 07:43:31,788 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 07:43:31,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 07:43:31,789 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 07:43:31,789 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 07:43:31,789 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 07:43:31,789 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_f35ee13b-7ff8-49af-8996-5776923dc88a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 258242508bb2f0d624fb3f4a66fd347aa6adb575 [2020-12-09 07:43:31,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 07:43:31,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 07:43:31,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 07:43:31,974 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 07:43:31,975 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 07:43:31,976 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2020-12-09 07:43:32,015 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/bin/utaipan/data/aab250f97/55ae213249c24a13877ac43fec5d0cf9/FLAG60bc488bc [2020-12-09 07:43:32,378 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 07:43:32,378 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2020-12-09 07:43:32,384 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/bin/utaipan/data/aab250f97/55ae213249c24a13877ac43fec5d0cf9/FLAG60bc488bc [2020-12-09 07:43:32,395 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/bin/utaipan/data/aab250f97/55ae213249c24a13877ac43fec5d0cf9 [2020-12-09 07:43:32,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 07:43:32,398 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 07:43:32,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 07:43:32,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 07:43:32,402 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 07:43:32,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:43:32" (1/1) ... [2020-12-09 07:43:32,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d159774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:32, skipping insertion in model container [2020-12-09 07:43:32,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:43:32" (1/1) ... [2020-12-09 07:43:32,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 07:43:32,428 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 07:43:32,570 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c[3940,3953] [2020-12-09 07:43:32,572 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 07:43:32,578 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 07:43:32,608 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c[3940,3953] [2020-12-09 07:43:32,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 07:43:32,620 INFO L208 MainTranslator]: Completed translation [2020-12-09 07:43:32,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:32 WrapperNode [2020-12-09 07:43:32,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 07:43:32,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 07:43:32,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 07:43:32,621 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 07:43:32,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:32" (1/1) ... [2020-12-09 07:43:32,633 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:32" (1/1) ... [2020-12-09 07:43:32,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 07:43:32,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 07:43:32,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 07:43:32,652 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 07:43:32,658 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:32" (1/1) ... [2020-12-09 07:43:32,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:32" (1/1) ... [2020-12-09 07:43:32,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:32" (1/1) ... [2020-12-09 07:43:32,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:32" (1/1) ... [2020-12-09 07:43:32,666 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:32" (1/1) ... [2020-12-09 07:43:32,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:32" (1/1) ... [2020-12-09 07:43:32,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:32" (1/1) ... [2020-12-09 07:43:32,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 07:43:32,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 07:43:32,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 07:43:32,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 07:43:32,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/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 [2020-12-09 07:43:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 07:43:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 07:43:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-09 07:43:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 07:43:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-09 07:43:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 07:43:32,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 07:43:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 07:43:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 07:43:33,049 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 07:43:33,050 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2020-12-09 07:43:33,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:43:33 BoogieIcfgContainer [2020-12-09 07:43:33,052 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 07:43:33,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 07:43:33,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 07:43:33,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 07:43:33,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:43:32" (1/3) ... [2020-12-09 07:43:33,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@694be906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:43:33, skipping insertion in model container [2020-12-09 07:43:33,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:32" (2/3) ... [2020-12-09 07:43:33,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@694be906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:43:33, skipping insertion in model container [2020-12-09 07:43:33,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:43:33" (3/3) ... [2020-12-09 07:43:33,059 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920b.c [2020-12-09 07:43:33,072 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 07:43:33,075 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 07:43:33,086 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 07:43:33,106 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 07:43:33,106 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 07:43:33,106 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 07:43:33,106 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 07:43:33,106 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 07:43:33,106 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 07:43:33,106 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 07:43:33,106 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 07:43:33,125 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-12-09 07:43:33,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 07:43:33,130 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:43:33,130 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:43:33,131 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:43:33,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:43:33,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1765374846, now seen corresponding path program 1 times [2020-12-09 07:43:33,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 07:43:33,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060848987] [2020-12-09 07:43:33,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 07:43:33,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:43:33,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:43:33,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060848987] [2020-12-09 07:43:33,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 07:43:33,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 07:43:33,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658607093] [2020-12-09 07:43:33,262 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 07:43:33,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 07:43:33,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 07:43:33,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 07:43:33,273 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2020-12-09 07:43:33,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:43:33,283 INFO L93 Difference]: Finished difference Result 37 states and 57 transitions. [2020-12-09 07:43:33,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 07:43:33,284 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-09 07:43:33,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:43:33,290 INFO L225 Difference]: With dead ends: 37 [2020-12-09 07:43:33,290 INFO L226 Difference]: Without dead ends: 17 [2020-12-09 07:43:33,292 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 [2020-12-09 07:43:33,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-12-09 07:43:33,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-12-09 07:43:33,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-12-09 07:43:33,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2020-12-09 07:43:33,315 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 8 [2020-12-09 07:43:33,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:43:33,315 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2020-12-09 07:43:33,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 07:43:33,316 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2020-12-09 07:43:33,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 07:43:33,316 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:43:33,316 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:43:33,316 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 07:43:33,316 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:43:33,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:43:33,317 INFO L82 PathProgramCache]: Analyzing trace with hash -656636463, now seen corresponding path program 1 times [2020-12-09 07:43:33,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 07:43:33,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412629339] [2020-12-09 07:43:33,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 07:43:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 07:43:33,350 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 07:43:33,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 07:43:33,372 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 07:43:33,389 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 07:43:33,390 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 07:43:33,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 07:43:33,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:43:33 BoogieIcfgContainer [2020-12-09 07:43:33,412 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 07:43:33,413 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 07:43:33,413 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 07:43:33,413 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 07:43:33,413 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:43:33" (3/4) ... [2020-12-09 07:43:33,415 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 07:43:33,415 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 07:43:33,417 INFO L168 Benchmark]: Toolchain (without parser) took 1017.88 ms. Allocated memory is still 111.1 MB. Free memory was 74.2 MB in the beginning and 67.6 MB in the end (delta: 6.6 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. [2020-12-09 07:43:33,417 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 111.1 MB. Free memory is still 90.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 07:43:33,418 INFO L168 Benchmark]: CACSL2BoogieTranslator took 220.93 ms. Allocated memory is still 111.1 MB. Free memory was 74.1 MB in the beginning and 84.8 MB in the end (delta: -10.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 07:43:33,418 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.01 ms. Allocated memory is still 111.1 MB. Free memory was 84.8 MB in the beginning and 82.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:43:33,419 INFO L168 Benchmark]: Boogie Preprocessor took 21.74 ms. Allocated memory is still 111.1 MB. Free memory was 82.8 MB in the beginning and 81.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:43:33,419 INFO L168 Benchmark]: RCFGBuilder took 378.11 ms. Allocated memory is still 111.1 MB. Free memory was 81.0 MB in the beginning and 48.8 MB in the end (delta: 32.2 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2020-12-09 07:43:33,419 INFO L168 Benchmark]: TraceAbstraction took 358.95 ms. Allocated memory is still 111.1 MB. Free memory was 48.8 MB in the beginning and 68.2 MB in the end (delta: -19.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 07:43:33,420 INFO L168 Benchmark]: Witness Printer took 2.64 ms. Allocated memory is still 111.1 MB. Free memory was 68.2 MB in the beginning and 67.6 MB in the end (delta: 623.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 07:43:33,422 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 111.1 MB. Free memory is still 90.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 220.93 ms. Allocated memory is still 111.1 MB. Free memory was 74.1 MB in the beginning and 84.8 MB in the end (delta: -10.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.01 ms. Allocated memory is still 111.1 MB. Free memory was 84.8 MB in the beginning and 82.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.74 ms. Allocated memory is still 111.1 MB. Free memory was 82.8 MB in the beginning and 81.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 378.11 ms. Allocated memory is still 111.1 MB. Free memory was 81.0 MB in the beginning and 48.8 MB in the end (delta: 32.2 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 358.95 ms. Allocated memory is still 111.1 MB. Free memory was 48.8 MB in the beginning and 68.2 MB in the end (delta: -19.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 2.64 ms. Allocated memory is still 111.1 MB. Free memory was 68.2 MB in the beginning and 67.6 MB in the end (delta: 623.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 153]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 139, overapproximation of bitwiseOr at line 61, overapproximation of someBinaryArithmeticDOUBLEoperation at line 62. Possible FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; [L148] double x = -1.0 / 0.0; [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L53] ieee_double_shape_type ew_u; [L54] ew_u.value = (x) [L55] EXPR ew_u.parts.msw [L55] (hx) = ew_u.parts.msw [L56] EXPR ew_u.parts.lsw [L56] (lx) = ew_u.parts.lsw [L59] k = 0 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L60] COND TRUE hx < 0x00100000 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L61] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L62] return -two54_log / zero; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L149] double res = __ieee754_log(x); [L139] return x != x; [L152] COND TRUE !isnan_double(res) [L153] reach_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 22 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=19occurred 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 0.2.0-7b2dab5 [2020-12-09 07:43:35,064 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 07:43:35,066 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 07:43:35,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 07:43:35,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 07:43:35,088 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 07:43:35,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 07:43:35,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 07:43:35,093 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 07:43:35,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 07:43:35,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 07:43:35,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 07:43:35,096 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 07:43:35,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 07:43:35,098 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 07:43:35,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 07:43:35,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 07:43:35,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 07:43:35,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 07:43:35,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 07:43:35,105 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 07:43:35,107 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 07:43:35,108 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 07:43:35,109 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 07:43:35,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 07:43:35,113 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 07:43:35,113 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 07:43:35,114 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 07:43:35,115 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 07:43:35,116 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 07:43:35,117 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 07:43:35,117 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 07:43:35,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 07:43:35,119 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 07:43:35,120 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 07:43:35,121 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 07:43:35,121 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 07:43:35,122 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 07:43:35,122 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 07:43:35,123 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 07:43:35,123 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 07:43:35,124 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 07:43:35,151 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 07:43:35,151 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 07:43:35,152 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 07:43:35,152 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 07:43:35,152 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 07:43:35,152 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 07:43:35,152 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 07:43:35,152 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 07:43:35,153 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 07:43:35,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 07:43:35,153 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 07:43:35,153 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 07:43:35,153 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 07:43:35,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 07:43:35,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 07:43:35,154 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 07:43:35,154 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 07:43:35,154 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 07:43:35,154 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 07:43:35,154 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 07:43:35,154 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 07:43:35,155 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 07:43:35,155 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 07:43:35,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 07:43:35,155 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 07:43:35,155 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 07:43:35,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 07:43:35,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 07:43:35,156 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 07:43:35,156 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 07:43:35,156 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 07:43:35,156 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 07:43:35,156 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 07:43:35,156 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 07:43:35,156 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 07:43:35,156 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_f35ee13b-7ff8-49af-8996-5776923dc88a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 258242508bb2f0d624fb3f4a66fd347aa6adb575 [2020-12-09 07:43:35,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 07:43:35,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 07:43:35,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 07:43:35,396 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 07:43:35,397 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 07:43:35,397 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/bin/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2020-12-09 07:43:35,440 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/bin/utaipan/data/f8d22c4db/a83c110d44144d65865ed3a78dc454bc/FLAG34b841366 [2020-12-09 07:43:35,913 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 07:43:35,914 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c [2020-12-09 07:43:35,921 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/bin/utaipan/data/f8d22c4db/a83c110d44144d65865ed3a78dc454bc/FLAG34b841366 [2020-12-09 07:43:36,423 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/bin/utaipan/data/f8d22c4db/a83c110d44144d65865ed3a78dc454bc [2020-12-09 07:43:36,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 07:43:36,427 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 07:43:36,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 07:43:36,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 07:43:36,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 07:43:36,432 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:43:36" (1/1) ... [2020-12-09 07:43:36,434 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@358effaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:36, skipping insertion in model container [2020-12-09 07:43:36,435 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:43:36" (1/1) ... [2020-12-09 07:43:36,440 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 07:43:36,458 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 07:43:36,597 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c[3940,3953] [2020-12-09 07:43:36,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 07:43:36,617 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 07:43:36,657 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/sv-benchmarks/c/float-newlib/double_req_bl_0920b.c[3940,3953] [2020-12-09 07:43:36,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 07:43:36,672 INFO L208 MainTranslator]: Completed translation [2020-12-09 07:43:36,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:36 WrapperNode [2020-12-09 07:43:36,673 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 07:43:36,674 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 07:43:36,674 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 07:43:36,674 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 07:43:36,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:36" (1/1) ... [2020-12-09 07:43:36,688 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:36" (1/1) ... [2020-12-09 07:43:36,707 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 07:43:36,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 07:43:36,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 07:43:36,708 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 07:43:36,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:36" (1/1) ... [2020-12-09 07:43:36,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:36" (1/1) ... [2020-12-09 07:43:36,717 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:36" (1/1) ... [2020-12-09 07:43:36,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:36" (1/1) ... [2020-12-09 07:43:36,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:36" (1/1) ... [2020-12-09 07:43:36,732 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:36" (1/1) ... [2020-12-09 07:43:36,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:36" (1/1) ... [2020-12-09 07:43:36,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 07:43:36,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 07:43:36,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 07:43:36,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 07:43:36,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/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 [2020-12-09 07:43:36,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-09 07:43:36,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-09 07:43:36,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 07:43:36,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 07:43:36,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-09 07:43:36,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 07:43:36,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 07:43:36,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-09 07:43:36,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 07:44:03,201 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 07:44:03,201 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2020-12-09 07:44:03,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:44:03 BoogieIcfgContainer [2020-12-09 07:44:03,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 07:44:03,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 07:44:03,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 07:44:03,207 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 07:44:03,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:43:36" (1/3) ... [2020-12-09 07:44:03,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e50a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:44:03, skipping insertion in model container [2020-12-09 07:44:03,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:43:36" (2/3) ... [2020-12-09 07:44:03,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29e50a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:44:03, skipping insertion in model container [2020-12-09 07:44:03,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:44:03" (3/3) ... [2020-12-09 07:44:03,209 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920b.c [2020-12-09 07:44:03,220 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 07:44:03,223 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 07:44:03,230 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 07:44:03,246 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 07:44:03,246 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 07:44:03,246 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 07:44:03,246 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 07:44:03,246 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 07:44:03,246 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 07:44:03,246 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 07:44:03,246 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 07:44:03,254 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-12-09 07:44:03,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 07:44:03,257 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:44:03,257 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:44:03,258 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:44:03,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:44:03,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1030195787, now seen corresponding path program 1 times [2020-12-09 07:44:03,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 07:44:03,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485070928] [2020-12-09 07:44:03,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/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 [2020-12-09 07:44:04,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:44:04,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 07:44:04,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 07:44:04,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:44:04,078 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 07:44:04,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1485070928] [2020-12-09 07:44:04,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 07:44:04,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 07:44:04,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61152521] [2020-12-09 07:44:04,082 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 07:44:04,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 07:44:04,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 07:44:04,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 07:44:04,091 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2020-12-09 07:44:04,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:44:04,102 INFO L93 Difference]: Finished difference Result 56 states and 90 transitions. [2020-12-09 07:44:04,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 07:44:04,103 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-09 07:44:04,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:44:04,109 INFO L225 Difference]: With dead ends: 56 [2020-12-09 07:44:04,109 INFO L226 Difference]: Without dead ends: 26 [2020-12-09 07:44:04,111 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 07:44:04,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-12-09 07:44:04,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-12-09 07:44:04,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-12-09 07:44:04,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2020-12-09 07:44:04,132 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 10 [2020-12-09 07:44:04,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:44:04,132 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2020-12-09 07:44:04,132 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 07:44:04,132 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2020-12-09 07:44:04,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 07:44:04,132 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:44:04,133 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:44:04,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 07:44:04,335 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:44:04,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:44:04,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1305111410, now seen corresponding path program 1 times [2020-12-09 07:44:04,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 07:44:04,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [24906894] [2020-12-09 07:44:04,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/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 [2020-12-09 07:44:05,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:44:05,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 07:44:05,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 07:44:05,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:44:05,436 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 07:44:05,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [24906894] [2020-12-09 07:44:05,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 07:44:05,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 07:44:05,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922916471] [2020-12-09 07:44:05,438 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 07:44:05,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 07:44:05,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 07:44:05,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 07:44:05,439 INFO L87 Difference]: Start difference. First operand 26 states and 36 transitions. Second operand 4 states. [2020-12-09 07:44:05,614 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-12-09 07:44:08,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:44:08,510 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2020-12-09 07:44:08,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 07:44:08,533 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-09 07:44:08,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:44:08,533 INFO L225 Difference]: With dead ends: 31 [2020-12-09 07:44:08,533 INFO L226 Difference]: Without dead ends: 13 [2020-12-09 07:44:08,534 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 07:44:08,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-12-09 07:44:08,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-12-09 07:44:08,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-12-09 07:44:08,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2020-12-09 07:44:08,536 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 11 [2020-12-09 07:44:08,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:44:08,536 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2020-12-09 07:44:08,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 07:44:08,537 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2020-12-09 07:44:08,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-09 07:44:08,537 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:44:08,537 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:44:08,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 07:44:08,739 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:44:08,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:44:08,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1813045648, now seen corresponding path program 1 times [2020-12-09 07:44:08,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 07:44:08,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [76939309] [2020-12-09 07:44:08,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/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 [2020-12-09 07:44:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:44:09,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-09 07:44:09,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 07:44:09,905 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-09 07:44:10,284 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 3 [2020-12-09 07:44:10,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:44:10,473 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 07:44:10,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [76939309] [2020-12-09 07:44:10,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 07:44:10,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 07:44:10,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130959520] [2020-12-09 07:44:10,475 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 07:44:10,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 07:44:10,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 07:44:10,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-09 07:44:10,476 INFO L87 Difference]: Start difference. First operand 13 states and 12 transitions. Second operand 7 states. [2020-12-09 07:44:13,598 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-09 07:44:13,885 WARN L197 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-12-09 07:44:14,180 WARN L197 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-12-09 07:44:14,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:44:14,181 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2020-12-09 07:44:14,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 07:44:14,181 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2020-12-09 07:44:14,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:44:14,181 INFO L225 Difference]: With dead ends: 13 [2020-12-09 07:44:14,181 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 07:44:14,182 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-12-09 07:44:14,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 07:44:14,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 07:44:14,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 07:44:14,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 07:44:14,182 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-12-09 07:44:14,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:44:14,182 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 07:44:14,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 07:44:14,183 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 07:44:14,183 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 07:44:14,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 07:44:14,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 07:44:14,590 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-12-09 07:44:14,760 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-09 07:44:15,063 WARN L197 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 13 [2020-12-09 07:44:15,068 INFO L262 CegarLoopResult]: For program point L60(lines 60 72) no Hoare annotation was computed. [2020-12-09 07:44:15,068 INFO L262 CegarLoopResult]: For program point L60-1(lines 47 126) no Hoare annotation was computed. [2020-12-09 07:44:15,069 INFO L262 CegarLoopResult]: For program point L52-1(lines 52 57) no Hoare annotation was computed. [2020-12-09 07:44:15,069 INFO L258 CegarLoopResult]: At program point L52-2(lines 52 57) the Hoare annotation is: (and (= ~zero~0 (_ +zero 11 53)) (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start___ieee754_log_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53)))) [2020-12-09 07:44:15,069 INFO L262 CegarLoopResult]: For program point L52-3(lines 52 57) no Hoare annotation was computed. [2020-12-09 07:44:15,069 INFO L258 CegarLoopResult]: At program point L139(line 139) the Hoare annotation is: (and (= ~zero~0 (_ +zero 11 53)) (= currentRoundingMode roundNearestTiesToEven) (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log_#res|) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|) (= ULTIMATE.start___ieee754_log_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53)))) [2020-12-09 07:44:15,069 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 07:44:15,070 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 07:44:15,070 INFO L262 CegarLoopResult]: For program point L61(lines 61 62) no Hoare annotation was computed. [2020-12-09 07:44:15,070 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 07:44:15,070 INFO L262 CegarLoopResult]: For program point L152(lines 152 155) no Hoare annotation was computed. [2020-12-09 07:44:15,070 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 153) no Hoare annotation was computed. [2020-12-09 07:44:15,070 INFO L262 CegarLoopResult]: For program point L86(lines 86 102) no Hoare annotation was computed. [2020-12-09 07:44:15,070 INFO L262 CegarLoopResult]: For program point L115(lines 115 119) no Hoare annotation was computed. [2020-12-09 07:44:15,070 INFO L262 CegarLoopResult]: For program point L78-1(lines 78 83) no Hoare annotation was computed. [2020-12-09 07:44:15,071 INFO L258 CegarLoopResult]: At program point L78-2(lines 78 83) the Hoare annotation is: false [2020-12-09 07:44:15,071 INFO L262 CegarLoopResult]: For program point L78-3(lines 78 83) no Hoare annotation was computed. [2020-12-09 07:44:15,071 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 07:44:15,071 INFO L265 CegarLoopResult]: At program point L157(lines 141 158) the Hoare annotation is: true [2020-12-09 07:44:15,071 INFO L258 CegarLoopResult]: At program point L124(lines 47 126) the Hoare annotation is: (and (= ~zero~0 (_ +zero 11 53)) (= currentRoundingMode roundNearestTiesToEven) (= (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log_#res|) (= ULTIMATE.start___ieee754_log_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53)))) [2020-12-09 07:44:15,071 INFO L262 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-12-09 07:44:15,071 INFO L262 CegarLoopResult]: For program point L87(lines 87 94) no Hoare annotation was computed. [2020-12-09 07:44:15,072 INFO L262 CegarLoopResult]: For program point L67-1(lines 67 71) no Hoare annotation was computed. [2020-12-09 07:44:15,072 INFO L258 CegarLoopResult]: At program point L67-2(lines 67 71) the Hoare annotation is: false [2020-12-09 07:44:15,072 INFO L262 CegarLoopResult]: For program point L96(lines 96 101) no Hoare annotation was computed. [2020-12-09 07:44:15,072 INFO L262 CegarLoopResult]: For program point L63(lines 63 64) no Hoare annotation was computed. [2020-12-09 07:44:15,072 INFO L262 CegarLoopResult]: For program point L121(lines 121 124) no Hoare annotation was computed. [2020-12-09 07:44:15,072 INFO L262 CegarLoopResult]: For program point L88(lines 88 93) no Hoare annotation was computed. [2020-12-09 07:44:15,072 INFO L262 CegarLoopResult]: For program point L113(lines 113 125) no Hoare annotation was computed. [2020-12-09 07:44:15,081 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,082 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,082 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,082 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,082 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,083 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,083 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,087 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,087 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,087 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,087 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,087 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,087 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,087 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,088 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,089 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,089 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,089 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,089 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,089 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,089 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,090 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,090 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,090 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,090 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,090 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,090 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,090 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,091 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,091 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:44:15 BoogieIcfgContainer [2020-12-09 07:44:15,093 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 07:44:15,093 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 07:44:15,093 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 07:44:15,094 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 07:44:15,094 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:44:03" (3/4) ... [2020-12-09 07:44:15,096 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 07:44:15,105 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-12-09 07:44:15,106 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-09 07:44:15,106 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 07:44:15,106 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 07:44:15,125 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((zero == ~Pluszero~LONGDOUBLE() && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE()) == \result) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) [2020-12-09 07:44:15,125 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((zero == ~Pluszero~LONGDOUBLE() && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE()) == \result) && 1bv32 == \result) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) [2020-12-09 07:44:15,149 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f35ee13b-7ff8-49af-8996-5776923dc88a/bin/utaipan/witness.graphml [2020-12-09 07:44:15,149 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 07:44:15,150 INFO L168 Benchmark]: Toolchain (without parser) took 38722.38 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 35.7 MB in the beginning and 42.9 MB in the end (delta: -7.2 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:44:15,150 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 56.6 MB. Free memory was 39.3 MB in the beginning and 39.3 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 07:44:15,150 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.26 ms. Allocated memory is still 56.6 MB. Free memory was 35.5 MB in the beginning and 37.6 MB in the end (delta: -2.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 07:44:15,151 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.54 ms. Allocated memory is still 56.6 MB. Free memory was 37.4 MB in the beginning and 35.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:44:15,151 INFO L168 Benchmark]: Boogie Preprocessor took 31.68 ms. Allocated memory is still 56.6 MB. Free memory was 35.6 MB in the beginning and 33.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:44:15,151 INFO L168 Benchmark]: RCFGBuilder took 26462.54 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 33.6 MB in the beginning and 40.9 MB in the end (delta: -7.4 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2020-12-09 07:44:15,151 INFO L168 Benchmark]: TraceAbstraction took 11888.65 ms. Allocated memory is still 71.3 MB. Free memory was 40.4 MB in the beginning and 47.6 MB in the end (delta: -7.2 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:44:15,152 INFO L168 Benchmark]: Witness Printer took 55.70 ms. Allocated memory is still 71.3 MB. Free memory was 47.6 MB in the beginning and 42.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 07:44:15,153 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 56.6 MB. Free memory was 39.3 MB in the beginning and 39.3 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 245.26 ms. Allocated memory is still 56.6 MB. Free memory was 35.5 MB in the beginning and 37.6 MB in the end (delta: -2.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.54 ms. Allocated memory is still 56.6 MB. Free memory was 37.4 MB in the beginning and 35.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.68 ms. Allocated memory is still 56.6 MB. Free memory was 35.6 MB in the beginning and 33.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 26462.54 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 33.6 MB in the beginning and 40.9 MB in the end (delta: -7.4 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11888.65 ms. Allocated memory is still 71.3 MB. Free memory was 40.4 MB in the beginning and 47.6 MB in the end (delta: -7.2 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. * Witness Printer took 55.70 ms. Allocated memory is still 71.3 MB. Free memory was 47.6 MB in the beginning and 42.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 153]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 139]: Loop Invariant [2020-12-09 07:44:15,158 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,158 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,158 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,158 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,158 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,158 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,158 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,158 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,159 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,159 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,159 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,159 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,159 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,159 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((zero == ~Pluszero~LONGDOUBLE() && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE()) == \result) && 1bv32 == \result) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 47]: Loop Invariant [2020-12-09 07:44:15,159 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,160 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,160 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,160 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,160 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,160 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,160 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,160 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,160 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,160 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,160 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,160 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,161 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,161 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((zero == ~Pluszero~LONGDOUBLE() && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE()) == \result) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 52]: Loop Invariant [2020-12-09 07:44:15,161 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 07:44:15,161 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (zero == ~Pluszero~LONGDOUBLE() && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 6.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 52 SDtfs, 18 SDslu, 25 SDs, 0 SdLazy, 19 SolverSat, 2 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 96 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 10 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 5 QuantifiedInterpolants, 2512 SizeOfPredicates, 17 NumberOfNonLiveVariables, 163 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...