./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_604652aa-a86d-4e14-ab7c-09177c67a12c/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_604652aa-a86d-4e14-ab7c-09177c67a12c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_604652aa-a86d-4e14-ab7c-09177c67a12c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_604652aa-a86d-4e14-ab7c-09177c67a12c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c -s /tmp/vcloud-vcloud-master/worker/run_dir_604652aa-a86d-4e14-ab7c-09177c67a12c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_604652aa-a86d-4e14-ab7c-09177c67a12c/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 3a46db52b19fb11eeacebca884b6de40c52cb082 ........................................................................................................................................................................................................................................................................................................ 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_604652aa-a86d-4e14-ab7c-09177c67a12c/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_604652aa-a86d-4e14-ab7c-09177c67a12c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_604652aa-a86d-4e14-ab7c-09177c67a12c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_604652aa-a86d-4e14-ab7c-09177c67a12c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c -s /tmp/vcloud-vcloud-master/worker/run_dir_604652aa-a86d-4e14-ab7c-09177c67a12c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_604652aa-a86d-4e14-ab7c-09177c67a12c/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 3a46db52b19fb11eeacebca884b6de40c52cb082 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:58:39,627 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:58:39,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:58:39,699 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:58:39,700 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:58:39,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:58:39,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:58:39,709 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:58:39,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:58:39,712 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:58:39,713 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:58:39,715 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:58:39,715 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:58:39,716 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:58:39,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:58:39,723 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:58:39,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:58:39,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:58:39,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:58:39,730 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:58:39,732 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:58:39,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:58:39,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:58:39,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:58:39,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:58:39,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:58:39,754 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:58:39,755 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:58:39,755 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:58:39,756 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:58:39,757 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:58:39,758 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:58:39,758 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:58:39,759 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:58:39,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:58:39,770 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:58:39,771 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:58:39,771 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:58:39,771 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:58:39,772 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:58:39,773 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:58:39,775 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_604652aa-a86d-4e14-ab7c-09177c67a12c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 12:58:39,818 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:58:39,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:58:39,819 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:58:39,819 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:58:39,820 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:58:39,820 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:58:39,820 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 12:58:39,820 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:58:39,820 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:58:39,821 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 12:58:39,821 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 12:58:39,821 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:58:39,821 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 12:58:39,821 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 12:58:39,822 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 12:58:39,822 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:58:39,823 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:58:39,823 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:58:39,823 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:58:39,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:58:39,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:58:39,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:58:39,824 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:58:39,824 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:58:39,824 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:58:39,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:58:39,824 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:58:39,825 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:58:39,825 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:58:39,825 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:58:39,825 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:58:39,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:58:39,826 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:58:39,826 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:58:39,826 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:58:39,826 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 12:58:39,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 12:58:39,827 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:58:39,827 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:58:39,827 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:58:39,827 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_604652aa-a86d-4e14-ab7c-09177c67a12c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_604652aa-a86d-4e14-ab7c-09177c67a12c/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a46db52b19fb11eeacebca884b6de40c52cb082 [2020-11-22 12:58:40,062 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:58:40,097 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:58:40,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:58:40,102 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:58:40,103 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:58:40,104 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_604652aa-a86d-4e14-ab7c-09177c67a12c/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-11-22 12:58:40,175 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_604652aa-a86d-4e14-ab7c-09177c67a12c/bin/utaipan/data/fb4be8d5e/b69bf7a3009b43aba25e5e711851393c/FLAGae0332d06 [2020-11-22 12:58:40,651 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:58:40,651 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_604652aa-a86d-4e14-ab7c-09177c67a12c/sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-11-22 12:58:40,658 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_604652aa-a86d-4e14-ab7c-09177c67a12c/bin/utaipan/data/fb4be8d5e/b69bf7a3009b43aba25e5e711851393c/FLAGae0332d06 [2020-11-22 12:58:41,025 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_604652aa-a86d-4e14-ab7c-09177c67a12c/bin/utaipan/data/fb4be8d5e/b69bf7a3009b43aba25e5e711851393c [2020-11-22 12:58:41,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:58:41,029 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:58:41,031 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:58:41,031 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:58:41,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:58:41,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:58:41" (1/1) ... [2020-11-22 12:58:41,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20580314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:41, skipping insertion in model container [2020-11-22 12:58:41,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:58:41" (1/1) ... [2020-11-22 12:58:41,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:58:41,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:58:41,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:58:41,271 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:58:41,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:58:41,320 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:58:41,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:41 WrapperNode [2020-11-22 12:58:41,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:58:41,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:58:41,322 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:58:41,322 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:58:41,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:41" (1/1) ... [2020-11-22 12:58:41,336 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:41" (1/1) ... [2020-11-22 12:58:41,360 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:58:41,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:58:41,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:58:41,361 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:58:41,370 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:41" (1/1) ... [2020-11-22 12:58:41,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:41" (1/1) ... [2020-11-22 12:58:41,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:41" (1/1) ... [2020-11-22 12:58:41,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:41" (1/1) ... [2020-11-22 12:58:41,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:41" (1/1) ... [2020-11-22 12:58:41,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:41" (1/1) ... [2020-11-22 12:58:41,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:41" (1/1) ... [2020-11-22 12:58:41,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:58:41,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:58:41,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:58:41,410 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:58:41,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_604652aa-a86d-4e14-ab7c-09177c67a12c/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:58:41,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 12:58:41,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:58:41,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-22 12:58:41,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-22 12:58:41,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-22 12:58:41,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:58:41,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:58:41,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-22 12:58:41,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 12:58:42,226 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:58:42,226 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-22 12:58:42,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:58:42 BoogieIcfgContainer [2020-11-22 12:58:42,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:58:42,230 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:58:42,230 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:58:42,242 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:58:42,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:58:41" (1/3) ... [2020-11-22 12:58:42,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61b28636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:58:42, skipping insertion in model container [2020-11-22 12:58:42,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:41" (2/3) ... [2020-11-22 12:58:42,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61b28636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:58:42, skipping insertion in model container [2020-11-22 12:58:42,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:58:42" (3/3) ... [2020-11-22 12:58:42,246 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720.c [2020-11-22 12:58:42,258 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:58:42,261 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 12:58:42,271 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 12:58:42,290 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:58:42,291 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:58:42,291 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:58:42,291 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:58:42,291 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:58:42,291 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:58:42,291 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:58:42,292 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:58:42,302 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-11-22 12:58:42,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-22 12:58:42,307 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:42,308 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:58:42,308 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:42,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:42,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1121646355, now seen corresponding path program 1 times [2020-11-22 12:58:42,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:58:42,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230677301] [2020-11-22 12:58:42,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:58:42,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:58:42,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:42,452 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230677301] [2020-11-22 12:58:42,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:58:42,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 12:58:42,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771102789] [2020-11-22 12:58:42,458 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 12:58:42,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:58:42,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 12:58:42,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:58:42,478 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2020-11-22 12:58:42,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:58:42,497 INFO L93 Difference]: Finished difference Result 39 states and 59 transitions. [2020-11-22 12:58:42,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 12:58:42,499 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-22 12:58:42,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:58:42,519 INFO L225 Difference]: With dead ends: 39 [2020-11-22 12:58:42,519 INFO L226 Difference]: Without dead ends: 18 [2020-11-22 12:58:42,522 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:58:42,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-22 12:58:42,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-22 12:58:42,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-22 12:58:42,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2020-11-22 12:58:42,557 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 7 [2020-11-22 12:58:42,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:58:42,558 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2020-11-22 12:58:42,558 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 12:58:42,558 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2020-11-22 12:58:42,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-22 12:58:42,558 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:42,559 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:58:42,559 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 12:58:42,559 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:42,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:42,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1816986138, now seen corresponding path program 1 times [2020-11-22 12:58:42,563 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:58:42,563 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461202755] [2020-11-22 12:58:42,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:58:42,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:58:42,650 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:58:42,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:58:42,717 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:58:42,749 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 12:58:42,749 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 12:58:42,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 12:58:42,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:58:42 BoogieIcfgContainer [2020-11-22 12:58:42,785 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:58:42,786 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:58:42,786 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:58:42,787 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:58:42,787 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:58:42" (3/4) ... [2020-11-22 12:58:42,792 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-22 12:58:42,792 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:58:42,797 INFO L168 Benchmark]: Toolchain (without parser) took 1764.21 ms. Allocated memory is still 102.8 MB. Free memory was 73.6 MB in the beginning and 57.6 MB in the end (delta: 16.0 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:42,797 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 75.5 MB. Free memory was 37.2 MB in the beginning and 37.1 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:58:42,798 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.25 ms. Allocated memory is still 102.8 MB. Free memory was 73.4 MB in the beginning and 80.6 MB in the end (delta: -7.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:42,800 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.36 ms. Allocated memory is still 102.8 MB. Free memory was 80.5 MB in the beginning and 78.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:42,801 INFO L168 Benchmark]: Boogie Preprocessor took 47.88 ms. Allocated memory is still 102.8 MB. Free memory was 78.5 MB in the beginning and 77.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:42,802 INFO L168 Benchmark]: RCFGBuilder took 818.88 ms. Allocated memory is still 102.8 MB. Free memory was 77.2 MB in the beginning and 80.1 MB in the end (delta: -2.9 MB). Peak memory consumption was 35.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:42,803 INFO L168 Benchmark]: TraceAbstraction took 555.59 ms. Allocated memory is still 102.8 MB. Free memory was 79.6 MB in the beginning and 57.6 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:42,804 INFO L168 Benchmark]: Witness Printer took 6.80 ms. Allocated memory is still 102.8 MB. Free memory is still 57.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:58:42,813 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 75.5 MB. Free memory was 37.2 MB in the beginning and 37.1 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 290.25 ms. Allocated memory is still 102.8 MB. Free memory was 73.4 MB in the beginning and 80.6 MB in the end (delta: -7.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.36 ms. Allocated memory is still 102.8 MB. Free memory was 80.5 MB in the beginning and 78.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.88 ms. Allocated memory is still 102.8 MB. Free memory was 78.5 MB in the beginning and 77.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 818.88 ms. Allocated memory is still 102.8 MB. Free memory was 77.2 MB in the beginning and 80.1 MB in the end (delta: -2.9 MB). Peak memory consumption was 35.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 555.59 ms. Allocated memory is still 102.8 MB. Free memory was 79.6 MB in the beginning and 57.6 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Witness Printer took 6.80 ms. Allocated memory is still 102.8 MB. Free memory is still 57.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 15, overapproximation of someBinaryArithmeticFLOAToperation at line 32, overapproximation of bitwiseAnd at line 29. Possible FailurePath: [L17] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L93] float x = 0.0f / 0.0f; [L20] float z; [L21] __uint32_t r, hx; [L22] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L25] ieee_float_shape_type gf_u; [L26] gf_u.value = (x) [L27] EXPR gf_u.word [L27] (ix) = gf_u.word [L29] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L31] COND TRUE !((hx) < 0x7f800000L) [L32] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L94] float res = __ieee754_sqrtf(x); [L15] return x != x; [L97] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_0720.c", 3, "reach_error") VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 25 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=20occurred 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, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:58:45,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:58:45,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:58:45,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:58:45,302 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:58:45,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:58:45,311 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:58:45,315 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:58:45,318 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:58:45,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:58:45,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:58:45,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:58:45,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:58:45,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:58:45,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:58:45,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:58:45,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:58:45,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:58:45,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:58:45,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:58:45,342 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:58:45,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:58:45,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:58:45,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:58:45,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:58:45,363 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:58:45,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:58:45,365 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:58:45,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:58:45,367 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:58:45,367 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:58:45,368 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:58:45,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:58:45,371 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:58:45,372 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:58:45,372 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:58:45,373 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:58:45,374 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:58:45,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:58:45,376 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:58:45,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:58:45,377 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_604652aa-a86d-4e14-ab7c-09177c67a12c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 12:58:45,422 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:58:45,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:58:45,423 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:58:45,423 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:58:45,424 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:58:45,424 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:58:45,424 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:58:45,424 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:58:45,425 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:58:45,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:58:45,427 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:58:45,427 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:58:45,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:58:45,428 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:58:45,428 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:58:45,428 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:58:45,428 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:58:45,428 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 12:58:45,429 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 12:58:45,429 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:58:45,429 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:58:45,429 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:58:45,430 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:58:45,430 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:58:45,430 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 12:58:45,430 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:58:45,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:58:45,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:58:45,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:58:45,439 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:58:45,439 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:58:45,439 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 12:58:45,439 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 12:58:45,440 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:58:45,440 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:58:45,440 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:58:45,440 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_604652aa-a86d-4e14-ab7c-09177c67a12c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_604652aa-a86d-4e14-ab7c-09177c67a12c/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a46db52b19fb11eeacebca884b6de40c52cb082 [2020-11-22 12:58:45,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:58:45,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:58:45,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:58:45,879 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:58:45,881 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:58:45,883 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_604652aa-a86d-4e14-ab7c-09177c67a12c/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-11-22 12:58:45,955 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_604652aa-a86d-4e14-ab7c-09177c67a12c/bin/utaipan/data/6e26dbd77/e2f9d5c941f84cd093a329598562a3f6/FLAGd1b81ef7c [2020-11-22 12:58:46,500 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:58:46,501 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_604652aa-a86d-4e14-ab7c-09177c67a12c/sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2020-11-22 12:58:46,508 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_604652aa-a86d-4e14-ab7c-09177c67a12c/bin/utaipan/data/6e26dbd77/e2f9d5c941f84cd093a329598562a3f6/FLAGd1b81ef7c [2020-11-22 12:58:46,877 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_604652aa-a86d-4e14-ab7c-09177c67a12c/bin/utaipan/data/6e26dbd77/e2f9d5c941f84cd093a329598562a3f6 [2020-11-22 12:58:46,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:58:46,880 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:58:46,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:58:46,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:58:46,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:58:46,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:58:46" (1/1) ... [2020-11-22 12:58:46,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7717531f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:46, skipping insertion in model container [2020-11-22 12:58:46,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:58:46" (1/1) ... [2020-11-22 12:58:46,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:58:46,915 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:58:47,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:58:47,091 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:58:47,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:58:47,137 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:58:47,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:47 WrapperNode [2020-11-22 12:58:47,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:58:47,139 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:58:47,140 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:58:47,140 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:58:47,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:47" (1/1) ... [2020-11-22 12:58:47,158 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:47" (1/1) ... [2020-11-22 12:58:47,213 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:58:47,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:58:47,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:58:47,214 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:58:47,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:47" (1/1) ... [2020-11-22 12:58:47,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:47" (1/1) ... [2020-11-22 12:58:47,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:47" (1/1) ... [2020-11-22 12:58:47,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:47" (1/1) ... [2020-11-22 12:58:47,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:47" (1/1) ... [2020-11-22 12:58:47,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:47" (1/1) ... [2020-11-22 12:58:47,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:47" (1/1) ... [2020-11-22 12:58:47,277 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:58:47,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:58:47,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:58:47,279 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:58:47,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_604652aa-a86d-4e14-ab7c-09177c67a12c/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:58:47,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 12:58:47,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:58:47,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-22 12:58:47,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-22 12:58:47,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:58:47,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:58:47,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-22 12:58:47,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-22 12:58:47,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 12:58:48,403 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:58:48,403 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-22 12:58:48,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:58:48 BoogieIcfgContainer [2020-11-22 12:58:48,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:58:48,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:58:48,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:58:48,410 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:58:48,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:58:46" (1/3) ... [2020-11-22 12:58:48,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab330ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:58:48, skipping insertion in model container [2020-11-22 12:58:48,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:47" (2/3) ... [2020-11-22 12:58:48,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ab330ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:58:48, skipping insertion in model container [2020-11-22 12:58:48,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:58:48" (3/3) ... [2020-11-22 12:58:48,438 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720.c [2020-11-22 12:58:48,447 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:58:48,451 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 12:58:48,463 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 12:58:48,487 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:58:48,487 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:58:48,487 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:58:48,487 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:58:48,487 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:58:48,487 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:58:48,488 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:58:48,488 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:58:48,501 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-11-22 12:58:48,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-22 12:58:48,506 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:48,506 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:58:48,507 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:48,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:48,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1903734416, now seen corresponding path program 1 times [2020-11-22 12:58:48,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:58:48,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1224521011] [2020-11-22 12:58:48,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_604652aa-a86d-4e14-ab7c-09177c67a12c/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-22 12:58:48,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:58:48,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-22 12:58:48,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:58:48,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:48,733 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:58:48,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:48,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1224521011] [2020-11-22 12:58:48,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:58:48,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-22 12:58:48,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788432578] [2020-11-22 12:58:48,744 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 12:58:48,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:58:48,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 12:58:48,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:58:48,759 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-11-22 12:58:48,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:58:48,777 INFO L93 Difference]: Finished difference Result 65 states and 99 transitions. [2020-11-22 12:58:48,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 12:58:48,779 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-22 12:58:48,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:58:48,788 INFO L225 Difference]: With dead ends: 65 [2020-11-22 12:58:48,788 INFO L226 Difference]: Without dead ends: 30 [2020-11-22 12:58:48,791 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 12:58:48,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-22 12:58:48,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-22 12:58:48,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-22 12:58:48,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2020-11-22 12:58:48,824 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2020-11-22 12:58:48,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:58:48,825 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-11-22 12:58:48,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 12:58:48,825 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2020-11-22 12:58:48,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-22 12:58:48,826 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:48,826 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:58:49,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 12:58:49,046 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:49,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:49,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1484616397, now seen corresponding path program 1 times [2020-11-22 12:58:49,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:58:49,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1923107555] [2020-11-22 12:58:49,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_604652aa-a86d-4e14-ab7c-09177c67a12c/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-22 12:58:49,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:58:49,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-22 12:58:49,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:58:49,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:49,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:58:54,110 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-11-22 12:58:54,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:54,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1923107555] [2020-11-22 12:58:54,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:58:54,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-22 12:58:54,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783647540] [2020-11-22 12:58:54,132 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-22 12:58:54,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:58:54,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-22 12:58:54,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-22 12:58:54,134 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 10 states. [2020-11-22 12:58:55,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:58:55,314 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2020-11-22 12:58:55,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-22 12:58:55,315 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 10 [2020-11-22 12:58:55,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:58:55,316 INFO L225 Difference]: With dead ends: 35 [2020-11-22 12:58:55,316 INFO L226 Difference]: Without dead ends: 30 [2020-11-22 12:58:55,317 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-11-22 12:58:55,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-22 12:58:55,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-22 12:58:55,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-22 12:58:55,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-11-22 12:58:55,323 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 10 [2020-11-22 12:58:55,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:58:55,323 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-11-22 12:58:55,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-22 12:58:55,323 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-11-22 12:58:55,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-22 12:58:55,325 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:55,325 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 12:58:55,548 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-22 12:58:55,548 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:55,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:55,549 INFO L82 PathProgramCache]: Analyzing trace with hash 591854048, now seen corresponding path program 1 times [2020-11-22 12:58:55,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:58:55,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [947494002] [2020-11-22 12:58:55,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_604652aa-a86d-4e14-ab7c-09177c67a12c/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-22 12:58:55,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:58:55,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-22 12:58:55,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:58:55,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:55,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:58:55,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:55,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [947494002] [2020-11-22 12:58:55,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:58:55,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-22 12:58:55,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226494939] [2020-11-22 12:58:55,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 12:58:55,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:58:55,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 12:58:55,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-22 12:58:55,909 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 8 states. [2020-11-22 12:58:56,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:58:56,085 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2020-11-22 12:58:56,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 12:58:56,085 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-11-22 12:58:56,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:58:56,085 INFO L225 Difference]: With dead ends: 30 [2020-11-22 12:58:56,086 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 12:58:56,086 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-22 12:58:56,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 12:58:56,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 12:58:56,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 12:58:56,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 12:58:56,087 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-11-22 12:58:56,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:58:56,087 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 12:58:56,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 12:58:56,087 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 12:58:56,087 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 12:58:56,288 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-22 12:58:56,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-22 12:58:56,440 INFO L277 CegarLoopResult]: At program point L102(lines 86 103) the Hoare annotation is: true [2020-11-22 12:58:56,440 INFO L274 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-11-22 12:58:56,440 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-22 12:58:56,441 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-22 12:58:56,441 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-22 12:58:56,441 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-22 12:58:56,441 INFO L274 CegarLoopResult]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2020-11-22 12:58:56,441 INFO L270 CegarLoopResult]: At program point L78-2(lines 78 82) the Hoare annotation is: false [2020-11-22 12:58:56,441 INFO L274 CegarLoopResult]: For program point L78-3(lines 78 82) no Hoare annotation was computed. [2020-11-22 12:58:56,441 INFO L274 CegarLoopResult]: For program point L70(lines 70 73) no Hoare annotation was computed. [2020-11-22 12:58:56,441 INFO L270 CegarLoopResult]: At program point L55-2(lines 55 64) the Hoare annotation is: false [2020-11-22 12:58:56,441 INFO L274 CegarLoopResult]: For program point L55-3(lines 19 84) no Hoare annotation was computed. [2020-11-22 12:58:56,442 INFO L274 CegarLoopResult]: For program point L47(lines 47 48) no Hoare annotation was computed. [2020-11-22 12:58:56,442 INFO L274 CegarLoopResult]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2020-11-22 12:58:56,442 INFO L274 CegarLoopResult]: For program point L97(lines 97 100) no Hoare annotation was computed. [2020-11-22 12:58:56,442 INFO L274 CegarLoopResult]: For program point L31(lines 31 32) no Hoare annotation was computed. [2020-11-22 12:58:56,442 INFO L270 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) |ULTIMATE.start___ieee754_sqrtf_#res|) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_sqrtf_~x)) [2020-11-22 12:58:56,442 INFO L274 CegarLoopResult]: For program point L40(lines 40 44) no Hoare annotation was computed. [2020-11-22 12:58:56,442 INFO L274 CegarLoopResult]: For program point L40-2(lines 40 44) no Hoare annotation was computed. [2020-11-22 12:58:56,443 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-22 12:58:56,443 INFO L274 CegarLoopResult]: For program point L57(lines 57 61) no Hoare annotation was computed. [2020-11-22 12:58:56,443 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-22 12:58:56,443 INFO L274 CegarLoopResult]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2020-11-22 12:58:56,443 INFO L274 CegarLoopResult]: For program point L57-2(lines 57 61) no Hoare annotation was computed. [2020-11-22 12:58:56,443 INFO L270 CegarLoopResult]: At program point L24-2(lines 24 28) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_sqrtf_~x)) [2020-11-22 12:58:56,443 INFO L274 CegarLoopResult]: For program point L24-3(lines 24 28) no Hoare annotation was computed. [2020-11-22 12:58:56,443 INFO L274 CegarLoopResult]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2020-11-22 12:58:56,444 INFO L270 CegarLoopResult]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2020-11-22 12:58:56,444 INFO L274 CegarLoopResult]: For program point L41-4(lines 41 42) no Hoare annotation was computed. [2020-11-22 12:58:56,444 INFO L274 CegarLoopResult]: For program point L66(lines 66 75) no Hoare annotation was computed. [2020-11-22 12:58:56,444 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-22 12:58:56,444 INFO L270 CegarLoopResult]: At program point L83(lines 19 84) the Hoare annotation is: (and (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) |ULTIMATE.start___ieee754_sqrtf_#res|) (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_sqrtf_~x)) [2020-11-22 12:58:56,444 INFO L274 CegarLoopResult]: For program point L34(lines 34 35) no Hoare annotation was computed. [2020-11-22 12:58:56,444 INFO L274 CegarLoopResult]: For program point L68(lines 68 74) no Hoare annotation was computed. [2020-11-22 12:58:56,452 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,453 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,453 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,454 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,454 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,454 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,456 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:58:56,456 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:58:56,459 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,459 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,459 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,459 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,459 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,459 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,460 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:58:56,460 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:58:56,461 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,461 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:58:56,461 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:58:56,461 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,462 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:58:56,462 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:58:56,462 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,462 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,463 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,463 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,463 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,463 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,463 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:58:56,463 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:58:56,464 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,464 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,464 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,464 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,465 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,465 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,465 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:58:56,465 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:58:56,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:58:56 BoogieIcfgContainer [2020-11-22 12:58:56,467 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:58:56,468 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:58:56,468 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:58:56,468 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:58:56,468 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:58:48" (3/4) ... [2020-11-22 12:58:56,471 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 12:58:56,481 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-22 12:58:56,482 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-22 12:58:56,482 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 12:58:56,482 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 12:58:56,507 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x [2020-11-22 12:58:56,507 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x [2020-11-22 12:58:56,537 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_604652aa-a86d-4e14-ab7c-09177c67a12c/bin/utaipan/witness.graphml [2020-11-22 12:58:56,538 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:58:56,539 INFO L168 Benchmark]: Toolchain (without parser) took 9658.24 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 40.9 MB in the beginning and 48.8 MB in the end (delta: -7.9 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:56,540 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 60.8 MB. Free memory was 42.3 MB in the beginning and 42.2 MB in the end (delta: 45.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:58:56,540 INFO L168 Benchmark]: CACSL2BoogieTranslator took 256.91 ms. Allocated memory is still 60.8 MB. Free memory was 40.8 MB in the beginning and 29.3 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:56,541 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.39 ms. Allocated memory is still 60.8 MB. Free memory was 29.3 MB in the beginning and 43.6 MB in the end (delta: -14.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:56,541 INFO L168 Benchmark]: Boogie Preprocessor took 64.21 ms. Allocated memory is still 60.8 MB. Free memory was 43.6 MB in the beginning and 41.9 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:58:56,542 INFO L168 Benchmark]: RCFGBuilder took 1126.80 ms. Allocated memory is still 60.8 MB. Free memory was 41.9 MB in the beginning and 22.3 MB in the end (delta: 19.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:56,543 INFO L168 Benchmark]: TraceAbstraction took 8060.21 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 21.8 MB in the beginning and 52.2 MB in the end (delta: -30.4 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:56,543 INFO L168 Benchmark]: Witness Printer took 70.29 ms. Allocated memory is still 77.6 MB. Free memory was 52.2 MB in the beginning and 48.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:56,546 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 60.8 MB. Free memory was 42.3 MB in the beginning and 42.2 MB in the end (delta: 45.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 256.91 ms. Allocated memory is still 60.8 MB. Free memory was 40.8 MB in the beginning and 29.3 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.39 ms. Allocated memory is still 60.8 MB. Free memory was 29.3 MB in the beginning and 43.6 MB in the end (delta: -14.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.21 ms. Allocated memory is still 60.8 MB. Free memory was 43.6 MB in the beginning and 41.9 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1126.80 ms. Allocated memory is still 60.8 MB. Free memory was 41.9 MB in the beginning and 22.3 MB in the end (delta: 19.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8060.21 ms. Allocated memory was 60.8 MB in the beginning and 77.6 MB in the end (delta: 16.8 MB). Free memory was 21.8 MB in the beginning and 52.2 MB in the end (delta: -30.4 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. * Witness Printer took 70.29 ms. Allocated memory is still 77.6 MB. Free memory was 52.2 MB in the beginning and 48.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant [2020-11-22 12:58:56,554 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,554 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,554 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,554 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,554 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,554 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,555 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:58:56,555 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:58:56,555 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,555 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,556 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,556 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,556 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,556 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,556 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:58:56,556 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant [2020-11-22 12:58:56,557 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,557 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:58:56,557 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:58:56,558 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,558 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:58:56,558 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant [2020-11-22 12:58:56,558 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,559 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,559 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,559 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,559 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,559 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,559 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:58:56,559 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:58:56,560 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,560 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,560 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,560 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,560 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,561 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-22 12:58:56,561 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-22 12:58:56,561 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 77 SDtfs, 52 SDslu, 129 SDs, 0 SdLazy, 52 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 60 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 7 LocationsWithAnnotation, 7 PreInvPairs, 11 NumberOfFragments, 73 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 76 ConstructedInterpolants, 5 QuantifiedInterpolants, 4376 SizeOfPredicates, 17 NumberOfNonLiveVariables, 158 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...