./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0740.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9aa4a35e-70a3-4c77-9982-fa241d19c362/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9aa4a35e-70a3-4c77-9982-fa241d19c362/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9aa4a35e-70a3-4c77-9982-fa241d19c362/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9aa4a35e-70a3-4c77-9982-fa241d19c362/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0740.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9aa4a35e-70a3-4c77-9982-fa241d19c362/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9aa4a35e-70a3-4c77-9982-fa241d19c362/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1ba5abe06d07a4712bf40ef71e353712c0bd3c97 .......................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9aa4a35e-70a3-4c77-9982-fa241d19c362/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9aa4a35e-70a3-4c77-9982-fa241d19c362/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9aa4a35e-70a3-4c77-9982-fa241d19c362/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9aa4a35e-70a3-4c77-9982-fa241d19c362/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0740.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9aa4a35e-70a3-4c77-9982-fa241d19c362/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9aa4a35e-70a3-4c77-9982-fa241d19c362/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1ba5abe06d07a4712bf40ef71e353712c0bd3c97 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:57:27,720 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:57:27,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:57:27,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:57:27,737 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:57:27,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:57:27,740 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:57:27,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:57:27,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:57:27,756 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:57:27,757 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:57:27,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:57:27,759 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:57:27,761 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:57:27,762 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:57:27,763 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:57:27,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:57:27,764 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:57:27,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:57:27,770 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:57:27,773 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:57:27,776 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:57:27,777 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:57:27,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:57:27,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:57:27,780 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:57:27,780 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:57:27,783 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:57:27,784 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:57:27,785 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:57:27,785 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:57:27,785 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:57:27,786 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:57:27,787 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:57:27,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:57:27,788 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:57:27,788 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:57:27,788 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:57:27,789 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:57:27,789 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:57:27,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:57:27,791 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9aa4a35e-70a3-4c77-9982-fa241d19c362/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:57:27,816 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:57:27,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:57:27,816 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:57:27,817 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:57:27,817 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:57:27,817 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:57:27,817 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:57:27,817 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:57:27,817 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:57:27,818 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:57:27,818 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:57:27,818 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:57:27,818 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:57:27,818 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:57:27,819 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:57:27,819 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:57:27,819 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:57:27,819 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:57:27,820 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:57:27,820 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:57:27,820 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:57:27,820 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:57:27,820 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:57:27,821 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:57:27,821 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:57:27,821 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:57:27,821 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:57:27,821 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:57:27,821 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:57:27,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:57:27,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:57:27,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:57:27,825 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:57:27,825 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:57:27,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:57:27,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:57:27,826 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:57:27,827 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_9aa4a35e-70a3-4c77-9982-fa241d19c362/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(__VERIFIER_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 -> 1ba5abe06d07a4712bf40ef71e353712c0bd3c97 [2019-11-26 02:57:27,966 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:57:27,984 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:57:27,987 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:57:27,988 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:57:27,989 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:57:27,989 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9aa4a35e-70a3-4c77-9982-fa241d19c362/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0740.c [2019-11-26 02:57:28,048 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9aa4a35e-70a3-4c77-9982-fa241d19c362/bin/utaipan/data/908768209/14fafe68dbb64b45b0263d6fefb5cd52/FLAG7aaf7ce26 [2019-11-26 02:57:28,433 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:57:28,434 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9aa4a35e-70a3-4c77-9982-fa241d19c362/sv-benchmarks/c/float-newlib/float_req_bl_0740.c [2019-11-26 02:57:28,442 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9aa4a35e-70a3-4c77-9982-fa241d19c362/bin/utaipan/data/908768209/14fafe68dbb64b45b0263d6fefb5cd52/FLAG7aaf7ce26 [2019-11-26 02:57:28,780 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9aa4a35e-70a3-4c77-9982-fa241d19c362/bin/utaipan/data/908768209/14fafe68dbb64b45b0263d6fefb5cd52 [2019-11-26 02:57:28,782 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:57:28,783 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:57:28,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:57:28,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:57:28,787 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:57:28,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:57:28" (1/1) ... [2019-11-26 02:57:28,790 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35c2b584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:28, skipping insertion in model container [2019-11-26 02:57:28,790 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:57:28" (1/1) ... [2019-11-26 02:57:28,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:57:28,809 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:57:28,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:57:28,971 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:57:29,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:57:29,099 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:57:29,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:29 WrapperNode [2019-11-26 02:57:29,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:57:29,100 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:57:29,100 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:57:29,100 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:57:29,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:29" (1/1) ... [2019-11-26 02:57:29,114 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:29" (1/1) ... [2019-11-26 02:57:29,142 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:57:29,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:57:29,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:57:29,144 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:57:29,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:29" (1/1) ... [2019-11-26 02:57:29,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:29" (1/1) ... [2019-11-26 02:57:29,156 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:29" (1/1) ... [2019-11-26 02:57:29,157 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:29" (1/1) ... [2019-11-26 02:57:29,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:29" (1/1) ... [2019-11-26 02:57:29,191 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:29" (1/1) ... [2019-11-26 02:57:29,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:29" (1/1) ... [2019-11-26 02:57:29,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:57:29,206 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:57:29,206 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:57:29,206 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:57:29,207 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9aa4a35e-70a3-4c77-9982-fa241d19c362/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 [2019-11-26 02:57:29,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:57:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-26 02:57:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-26 02:57:29,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-26 02:57:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:57:29,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:57:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-26 02:57:29,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:57:29,816 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:57:29,816 INFO L284 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-26 02:57:29,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:57:29 BoogieIcfgContainer [2019-11-26 02:57:29,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:57:29,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:57:29,818 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:57:29,821 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:57:29,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:57:28" (1/3) ... [2019-11-26 02:57:29,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64b7140c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:57:29, skipping insertion in model container [2019-11-26 02:57:29,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:29" (2/3) ... [2019-11-26 02:57:29,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64b7140c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:57:29, skipping insertion in model container [2019-11-26 02:57:29,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:57:29" (3/3) ... [2019-11-26 02:57:29,824 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0740.c [2019-11-26 02:57:29,833 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:57:29,839 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:57:29,849 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:57:29,869 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:57:29,869 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:57:29,869 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:57:29,870 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:57:29,870 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:57:29,870 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:57:29,870 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:57:29,870 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:57:29,882 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-26 02:57:29,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:57:29,886 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:57:29,887 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:57:29,887 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:57:29,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:57:29,891 INFO L82 PathProgramCache]: Analyzing trace with hash 510809898, now seen corresponding path program 1 times [2019-11-26 02:57:29,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:57:29,898 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419148453] [2019-11-26 02:57:29,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:57:29,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:57:29,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:57:29,983 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419148453] [2019-11-26 02:57:29,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:57:29,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:57:29,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567213209] [2019-11-26 02:57:29,988 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:57:29,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:57:30,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:57:30,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:57:30,002 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2019-11-26 02:57:30,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:57:30,015 INFO L93 Difference]: Finished difference Result 39 states and 59 transitions. [2019-11-26 02:57:30,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:57:30,016 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-26 02:57:30,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:57:30,025 INFO L225 Difference]: With dead ends: 39 [2019-11-26 02:57:30,026 INFO L226 Difference]: Without dead ends: 18 [2019-11-26 02:57:30,028 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:57:30,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-26 02:57:30,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-26 02:57:30,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-26 02:57:30,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2019-11-26 02:57:30,058 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 7 [2019-11-26 02:57:30,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:57:30,059 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-11-26 02:57:30,059 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:57:30,059 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2019-11-26 02:57:30,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:57:30,059 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:57:30,059 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:57:30,060 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:57:30,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:57:30,060 INFO L82 PathProgramCache]: Analyzing trace with hash 883522429, now seen corresponding path program 1 times [2019-11-26 02:57:30,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:57:30,060 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668727960] [2019-11-26 02:57:30,060 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:57:30,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:57:30,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:57:30,138 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:57:30,138 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:57:30,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:57:30 BoogieIcfgContainer [2019-11-26 02:57:30,161 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:57:30,161 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:57:30,161 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:57:30,161 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:57:30,162 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:57:29" (3/4) ... [2019-11-26 02:57:30,164 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-26 02:57:30,165 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:57:30,167 INFO L168 Benchmark]: Toolchain (without parser) took 1382.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -100.8 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:57:30,167 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:57:30,168 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -164.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:57:30,168 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.30 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:57:30,168 INFO L168 Benchmark]: Boogie Preprocessor took 61.73 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:57:30,169 INFO L168 Benchmark]: RCFGBuilder took 611.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 42.8 MB). Peak memory consumption was 42.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:57:30,170 INFO L168 Benchmark]: TraceAbstraction took 342.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:57:30,170 INFO L168 Benchmark]: Witness Printer took 3.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:57:30,173 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 316.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -164.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.30 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 61.73 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 611.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 42.8 MB). Peak memory consumption was 42.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 342.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Witness Printer took 3.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 97]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of someBinaryArithmeticFLOAToperation at line 30, overapproximation of bitwiseAnd at line 27. Possible FailurePath: [L15] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L91] float x = -1.0f / 0.0f; [L18] float z; [L19] __uint32_t r, hx; [L20] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (ix) = gf_u.word [L27] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L29] COND TRUE !((hx) < 0x7f800000L) [L30] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L93] float res = __ieee754_sqrtf(x); [L13] return x != x; [L96] COND TRUE !isnan_float(res) [L97] __VERIFIER_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-6b5699a [2019-11-26 02:57:31,950 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:57:31,952 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:57:31,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:57:31,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:57:31,970 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:57:31,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:57:31,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:57:31,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:57:31,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:57:31,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:57:31,991 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:57:31,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:57:31,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:57:31,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:57:31,997 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:57:31,998 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:57:31,999 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:57:32,001 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:57:32,005 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:57:32,008 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:57:32,012 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:57:32,013 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:57:32,014 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:57:32,018 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:57:32,018 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:57:32,018 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:57:32,020 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:57:32,020 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:57:32,021 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:57:32,021 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:57:32,022 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:57:32,022 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:57:32,023 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:57:32,024 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:57:32,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:57:32,025 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:57:32,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:57:32,026 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:57:32,027 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:57:32,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:57:32,028 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9aa4a35e-70a3-4c77-9982-fa241d19c362/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-11-26 02:57:32,053 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:57:32,062 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:57:32,063 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:57:32,063 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:57:32,063 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:57:32,064 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:57:32,064 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:57:32,064 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:57:32,064 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:57:32,065 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:57:32,065 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:57:32,066 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:57:32,066 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:57:32,066 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:57:32,067 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:57:32,067 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:57:32,067 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 02:57:32,068 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 02:57:32,068 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 02:57:32,068 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:57:32,068 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:57:32,069 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:57:32,069 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:57:32,069 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:57:32,069 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 02:57:32,070 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:57:32,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:57:32,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:57:32,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:57:32,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:57:32,071 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:57:32,071 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-11-26 02:57:32,072 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 02:57:32,072 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:57:32,072 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:57:32,073 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9aa4a35e-70a3-4c77-9982-fa241d19c362/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(__VERIFIER_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 -> 1ba5abe06d07a4712bf40ef71e353712c0bd3c97 [2019-11-26 02:57:32,379 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:57:32,397 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:57:32,400 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:57:32,401 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:57:32,402 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:57:32,402 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9aa4a35e-70a3-4c77-9982-fa241d19c362/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0740.c [2019-11-26 02:57:32,455 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9aa4a35e-70a3-4c77-9982-fa241d19c362/bin/utaipan/data/a283d9ba1/7ab6d55281c0428bb0954a965075a1a7/FLAGef1e18975 [2019-11-26 02:57:32,884 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:57:32,884 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9aa4a35e-70a3-4c77-9982-fa241d19c362/sv-benchmarks/c/float-newlib/float_req_bl_0740.c [2019-11-26 02:57:32,895 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9aa4a35e-70a3-4c77-9982-fa241d19c362/bin/utaipan/data/a283d9ba1/7ab6d55281c0428bb0954a965075a1a7/FLAGef1e18975 [2019-11-26 02:57:33,235 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9aa4a35e-70a3-4c77-9982-fa241d19c362/bin/utaipan/data/a283d9ba1/7ab6d55281c0428bb0954a965075a1a7 [2019-11-26 02:57:33,238 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:57:33,239 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:57:33,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:57:33,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:57:33,243 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:57:33,244 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:57:33" (1/1) ... [2019-11-26 02:57:33,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7719c6b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:33, skipping insertion in model container [2019-11-26 02:57:33,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:57:33" (1/1) ... [2019-11-26 02:57:33,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:57:33,276 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:57:33,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:57:33,445 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:57:33,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:57:33,561 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:57:33,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:33 WrapperNode [2019-11-26 02:57:33,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:57:33,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:57:33,562 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:57:33,562 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:57:33,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:33" (1/1) ... [2019-11-26 02:57:33,577 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:33" (1/1) ... [2019-11-26 02:57:33,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:57:33,599 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:57:33,599 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:57:33,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:57:33,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:33" (1/1) ... [2019-11-26 02:57:33,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:33" (1/1) ... [2019-11-26 02:57:33,612 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:33" (1/1) ... [2019-11-26 02:57:33,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:33" (1/1) ... [2019-11-26 02:57:33,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:33" (1/1) ... [2019-11-26 02:57:33,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:33" (1/1) ... [2019-11-26 02:57:33,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:33" (1/1) ... [2019-11-26 02:57:33,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:57:33,635 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:57:33,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:57:33,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:57:33,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9aa4a35e-70a3-4c77-9982-fa241d19c362/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 [2019-11-26 02:57:33,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-26 02:57:33,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-26 02:57:33,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-26 02:57:33,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:57:33,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:57:33,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-26 02:57:33,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-26 02:57:33,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-26 02:57:34,586 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:57:34,587 INFO L284 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-26 02:57:34,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:57:34 BoogieIcfgContainer [2019-11-26 02:57:34,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:57:34,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:57:34,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:57:34,592 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:57:34,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:57:33" (1/3) ... [2019-11-26 02:57:34,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@123403a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:57:34, skipping insertion in model container [2019-11-26 02:57:34,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:57:33" (2/3) ... [2019-11-26 02:57:34,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@123403a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:57:34, skipping insertion in model container [2019-11-26 02:57:34,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:57:34" (3/3) ... [2019-11-26 02:57:34,596 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0740.c [2019-11-26 02:57:34,603 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:57:34,608 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:57:34,616 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:57:34,637 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:57:34,637 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:57:34,637 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:57:34,637 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:57:34,637 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:57:34,638 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:57:34,638 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:57:34,638 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:57:34,649 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-11-26 02:57:34,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-26 02:57:34,654 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:57:34,655 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:57:34,656 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:57:34,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:57:34,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1903734416, now seen corresponding path program 1 times [2019-11-26 02:57:34,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:57:34,668 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [420622773] [2019-11-26 02:57:34,668 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9aa4a35e-70a3-4c77-9982-fa241d19c362/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 [2019-11-26 02:57:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:57:34,834 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-26 02:57:34,838 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:57:34,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:57:34,848 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:57:34,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:57:34,852 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [420622773] [2019-11-26 02:57:34,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:57:34,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-26 02:57:34,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486936853] [2019-11-26 02:57:34,858 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-26 02:57:34,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:57:34,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-26 02:57:34,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:57:34,869 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2019-11-26 02:57:34,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:57:34,886 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2019-11-26 02:57:34,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-26 02:57:34,887 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-11-26 02:57:34,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:57:34,897 INFO L225 Difference]: With dead ends: 64 [2019-11-26 02:57:34,897 INFO L226 Difference]: Without dead ends: 30 [2019-11-26 02:57:34,900 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-26 02:57:34,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-26 02:57:34,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-26 02:57:34,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-26 02:57:34,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2019-11-26 02:57:34,932 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2019-11-26 02:57:34,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:57:34,933 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2019-11-26 02:57:34,933 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-26 02:57:34,933 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2019-11-26 02:57:34,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-26 02:57:34,934 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:57:34,934 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:57:35,150 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-26 02:57:35,150 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:57:35,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:57:35,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1484616397, now seen corresponding path program 1 times [2019-11-26 02:57:35,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:57:35,152 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [573382830] [2019-11-26 02:57:35,152 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9aa4a35e-70a3-4c77-9982-fa241d19c362/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 [2019-11-26 02:57:35,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:57:35,352 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-26 02:57:35,353 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:57:35,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:57:35,453 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:57:37,966 WARN L192 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2019-11-26 02:57:37,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:57:37,980 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [573382830] [2019-11-26 02:57:37,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:57:37,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-26 02:57:37,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402198216] [2019-11-26 02:57:37,982 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-26 02:57:37,982 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:57:37,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-26 02:57:37,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-26 02:57:37,983 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 10 states. [2019-11-26 02:57:38,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:57:38,790 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2019-11-26 02:57:38,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:57:38,791 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 10 [2019-11-26 02:57:38,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:57:38,792 INFO L225 Difference]: With dead ends: 35 [2019-11-26 02:57:38,792 INFO L226 Difference]: Without dead ends: 30 [2019-11-26 02:57:38,793 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-11-26 02:57:38,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-26 02:57:38,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-26 02:57:38,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-26 02:57:38,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2019-11-26 02:57:38,798 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 10 [2019-11-26 02:57:38,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:57:38,799 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2019-11-26 02:57:38,799 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-26 02:57:38,799 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2019-11-26 02:57:38,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-26 02:57:38,800 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:57:38,800 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:57:39,000 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-26 02:57:39,001 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:57:39,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:57:39,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1245605874, now seen corresponding path program 1 times [2019-11-26 02:57:39,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-11-26 02:57:39,002 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [73967682] [2019-11-26 02:57:39,002 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9aa4a35e-70a3-4c77-9982-fa241d19c362/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 [2019-11-26 02:57:39,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:57:39,082 INFO L255 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-26 02:57:39,084 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:57:39,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:57:39,167 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:57:39,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:57:39,258 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [73967682] [2019-11-26 02:57:39,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:57:39,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-26 02:57:39,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471481066] [2019-11-26 02:57:39,259 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-26 02:57:39,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-11-26 02:57:39,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-26 02:57:39,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-26 02:57:39,260 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand 8 states. [2019-11-26 02:57:39,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:57:39,381 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2019-11-26 02:57:39,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:57:39,381 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-11-26 02:57:39,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:57:39,381 INFO L225 Difference]: With dead ends: 30 [2019-11-26 02:57:39,382 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:57:39,382 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-26 02:57:39,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:57:39,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:57:39,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:57:39,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:57:39,383 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-11-26 02:57:39,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:57:39,384 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:57:39,384 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-26 02:57:39,384 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:57:39,384 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:57:39,585 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-26 02:57:39,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:57:39,714 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:57:39,715 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-26 02:57:39,715 INFO L440 ceAbstractionStarter]: At program point L53-2(lines 53 62) the Hoare annotation is: false [2019-11-26 02:57:39,715 INFO L444 ceAbstractionStarter]: For program point L53-3(lines 17 82) no Hoare annotation was computed. [2019-11-26 02:57:39,715 INFO L444 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2019-11-26 02:57:39,715 INFO L444 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2019-11-26 02:57:39,715 INFO L444 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2019-11-26 02:57:39,716 INFO L440 ceAbstractionStarter]: At program point L13(line 13) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= |ULTIMATE.start___ieee754_sqrtf_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0))) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) ULTIMATE.start___ieee754_sqrtf_~x) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-26 02:57:39,716 INFO L444 ceAbstractionStarter]: For program point L38(lines 38 42) no Hoare annotation was computed. [2019-11-26 02:57:39,716 INFO L444 ceAbstractionStarter]: For program point L38-2(lines 38 42) no Hoare annotation was computed. [2019-11-26 02:57:39,716 INFO L444 ceAbstractionStarter]: For program point L96(lines 96 99) no Hoare annotation was computed. [2019-11-26 02:57:39,716 INFO L444 ceAbstractionStarter]: For program point L55(lines 55 59) no Hoare annotation was computed. [2019-11-26 02:57:39,716 INFO L444 ceAbstractionStarter]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2019-11-26 02:57:39,716 INFO L444 ceAbstractionStarter]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2019-11-26 02:57:39,717 INFO L440 ceAbstractionStarter]: At program point L22-2(lines 22 26) the Hoare annotation is: (and (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) ULTIMATE.start___ieee754_sqrtf_~x) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-26 02:57:39,717 INFO L444 ceAbstractionStarter]: For program point L22-3(lines 22 26) no Hoare annotation was computed. [2019-11-26 02:57:39,717 INFO L444 ceAbstractionStarter]: For program point L39-2(lines 39 40) no Hoare annotation was computed. [2019-11-26 02:57:39,717 INFO L440 ceAbstractionStarter]: At program point L39-3(lines 39 40) the Hoare annotation is: false [2019-11-26 02:57:39,717 INFO L444 ceAbstractionStarter]: For program point L39-4(lines 39 40) no Hoare annotation was computed. [2019-11-26 02:57:39,717 INFO L444 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2019-11-26 02:57:39,717 INFO L444 ceAbstractionStarter]: For program point L64(lines 64 73) no Hoare annotation was computed. [2019-11-26 02:57:39,718 INFO L440 ceAbstractionStarter]: At program point L81(lines 17 82) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_sqrtf_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0))) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) ULTIMATE.start___ieee754_sqrtf_~x) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-26 02:57:39,718 INFO L444 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2019-11-26 02:57:39,718 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-26 02:57:39,718 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 97) no Hoare annotation was computed. [2019-11-26 02:57:39,718 INFO L444 ceAbstractionStarter]: For program point L66(lines 66 72) no Hoare annotation was computed. [2019-11-26 02:57:39,718 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:57:39,719 INFO L444 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2019-11-26 02:57:39,719 INFO L444 ceAbstractionStarter]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2019-11-26 02:57:39,719 INFO L440 ceAbstractionStarter]: At program point L76-2(lines 76 80) the Hoare annotation is: false [2019-11-26 02:57:39,719 INFO L444 ceAbstractionStarter]: For program point L76-3(lines 76 80) no Hoare annotation was computed. [2019-11-26 02:57:39,719 INFO L447 ceAbstractionStarter]: At program point L101(lines 84 102) the Hoare annotation is: true [2019-11-26 02:57:39,719 INFO L444 ceAbstractionStarter]: For program point L68(lines 68 71) no Hoare annotation was computed. [2019-11-26 02:57:39,729 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,730 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,731 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,731 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,731 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,732 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,732 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,732 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,733 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,734 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,735 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,735 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,737 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,737 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,738 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,738 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,738 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,739 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,739 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,739 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,739 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,740 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,740 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,740 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,741 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,742 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,742 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,742 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,743 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,743 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,743 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,744 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,744 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,744 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,745 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,745 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,746 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,746 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,746 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,747 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,747 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,747 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,748 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,748 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,748 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,749 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,749 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,749 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,750 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,750 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,751 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,751 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,751 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,752 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,752 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,752 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:57:39 BoogieIcfgContainer [2019-11-26 02:57:39,755 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:57:39,755 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:57:39,755 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:57:39,755 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:57:39,756 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:57:34" (3/4) ... [2019-11-26 02:57:39,759 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:57:39,770 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-26 02:57:39,771 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-26 02:57:39,773 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:57:39,805 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-11-26 02:57:39,806 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1bv32 == \result && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()))) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-11-26 02:57:39,857 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9aa4a35e-70a3-4c77-9982-fa241d19c362/bin/utaipan/witness.graphml [2019-11-26 02:57:39,858 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:57:39,859 INFO L168 Benchmark]: Toolchain (without parser) took 6620.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 960.4 MB in the beginning and 1.0 GB in the end (delta: -44.8 MB). Peak memory consumption was 112.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:57:39,860 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:57:39,861 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 960.4 MB in the beginning and 1.2 GB in the end (delta: -193.1 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:57:39,861 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:57:39,862 INFO L168 Benchmark]: Boogie Preprocessor took 35.96 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:57:39,862 INFO L168 Benchmark]: RCFGBuilder took 952.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:57:39,863 INFO L168 Benchmark]: TraceAbstraction took 5165.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 105.0 MB). Peak memory consumption was 105.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:57:39,863 INFO L168 Benchmark]: Witness Printer took 102.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:57:39,865 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 987.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 321.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 960.4 MB in the beginning and 1.2 GB in the end (delta: -193.1 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.96 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 952.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5165.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 105.0 MB). Peak memory consumption was 105.0 MB. Max. memory is 11.5 GB. * Witness Printer took 102.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 - 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: 97]: 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: 76]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant [2019-11-26 02:57:39,881 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,881 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,882 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,882 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,882 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,883 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,883 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,883 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,884 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,884 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,884 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,885 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,893 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,893 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,894 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,894 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,894 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,895 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,895 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,895 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,895 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,898 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,898 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,899 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 13]: Loop Invariant [2019-11-26 02:57:39,899 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,900 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,900 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,900 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,900 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,901 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,901 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,901 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,902 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,902 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,902 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,902 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,903 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,903 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,904 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,904 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,904 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,904 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,905 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,905 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,905 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,905 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,906 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,906 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((1bv32 == \result && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()))) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant [2019-11-26 02:57:39,907 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,907 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,907 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,908 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,908 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-26 02:57:39,908 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,909 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-26 02:57:39,909 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Result: SAFE, OverallTime: 5.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 77 SDtfs, 49 SDslu, 130 SDs, 0 SdLazy, 53 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 100 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 10 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 54 ConstructedInterpolants, 5 QuantifiedInterpolants, 3568 SizeOfPredicates, 17 NumberOfNonLiveVariables, 90 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...