./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b664f927-d265-4fa4-a1df-eee62e004bce/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b664f927-d265-4fa4-a1df-eee62e004bce/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b664f927-d265-4fa4-a1df-eee62e004bce/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b664f927-d265-4fa4-a1df-eee62e004bce/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b664f927-d265-4fa4-a1df-eee62e004bce/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b664f927-d265-4fa4-a1df-eee62e004bce/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 9ab995f7fc826665e07ee96ac8969470b0927c50 ................................................................................................................................................................................................................................ 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/working_dir_b664f927-d265-4fa4-a1df-eee62e004bce/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b664f927-d265-4fa4-a1df-eee62e004bce/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b664f927-d265-4fa4-a1df-eee62e004bce/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b664f927-d265-4fa4-a1df-eee62e004bce/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b664f927-d265-4fa4-a1df-eee62e004bce/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b664f927-d265-4fa4-a1df-eee62e004bce/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 9ab995f7fc826665e07ee96ac8969470b0927c50 ............................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:26:43,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:26:43,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:26:43,810 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:26:43,810 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:26:43,811 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:26:43,812 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:26:43,814 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:26:43,815 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:26:43,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:26:43,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:26:43,818 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:26:43,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:26:43,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:26:43,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:26:43,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:26:43,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:26:43,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:26:43,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:26:43,825 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:26:43,826 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:26:43,827 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:26:43,828 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:26:43,828 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:26:43,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:26:43,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:26:43,831 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:26:43,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:26:43,832 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:26:43,833 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:26:43,833 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:26:43,834 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:26:43,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:26:43,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:26:43,836 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:26:43,836 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:26:43,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:26:43,836 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:26:43,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:26:43,837 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:26:43,838 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:26:43,839 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b664f927-d265-4fa4-a1df-eee62e004bce/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:26:43,850 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:26:43,850 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:26:43,850 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:26:43,851 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:26:43,851 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:26:43,851 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:26:43,851 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:26:43,851 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:26:43,851 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:26:43,852 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:26:43,852 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:26:43,852 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:26:43,853 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:26:43,853 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:26:43,853 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:26:43,853 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:26:43,853 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:26:43,853 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:26:43,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:26:43,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:26:43,854 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:26:43,854 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:26:43,855 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:26:43,855 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:26:43,855 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:26:43,855 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:26:43,855 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:26:43,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:26:43,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:26:43,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:26:43,856 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:26:43,856 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:26:43,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:26:43,856 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:26:43,857 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:26:43,857 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/working_dir_b664f927-d265-4fa4-a1df-eee62e004bce/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 -> 9ab995f7fc826665e07ee96ac8969470b0927c50 [2019-10-22 11:26:43,892 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:26:43,902 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:26:43,915 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:26:43,917 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:26:43,918 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:26:43,918 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b664f927-d265-4fa4-a1df-eee62e004bce/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2019-10-22 11:26:43,969 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b664f927-d265-4fa4-a1df-eee62e004bce/bin/utaipan/data/7c01046a0/b5492aef5a814320b2f4736d1bbb3038/FLAG4cac79586 [2019-10-22 11:26:44,345 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:26:44,346 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b664f927-d265-4fa4-a1df-eee62e004bce/sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2019-10-22 11:26:44,350 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b664f927-d265-4fa4-a1df-eee62e004bce/bin/utaipan/data/7c01046a0/b5492aef5a814320b2f4736d1bbb3038/FLAG4cac79586 [2019-10-22 11:26:44,753 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b664f927-d265-4fa4-a1df-eee62e004bce/bin/utaipan/data/7c01046a0/b5492aef5a814320b2f4736d1bbb3038 [2019-10-22 11:26:44,755 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:26:44,756 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:26:44,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:44,758 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:26:44,761 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:26:44,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:44" (1/1) ... [2019-10-22 11:26:44,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49cdef3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:44, skipping insertion in model container [2019-10-22 11:26:44,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:44" (1/1) ... [2019-10-22 11:26:44,771 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:26:44,785 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:26:44,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:44,975 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:26:45,060 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:45,076 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:26:45,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:45 WrapperNode [2019-10-22 11:26:45,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:45,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:45,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:26:45,077 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:26:45,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:45" (1/1) ... [2019-10-22 11:26:45,092 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:45" (1/1) ... [2019-10-22 11:26:45,105 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:45,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:26:45,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:26:45,106 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:26:45,112 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:45" (1/1) ... [2019-10-22 11:26:45,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:45" (1/1) ... [2019-10-22 11:26:45,112 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:45" (1/1) ... [2019-10-22 11:26:45,112 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:45" (1/1) ... [2019-10-22 11:26:45,115 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:45" (1/1) ... [2019-10-22 11:26:45,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:45" (1/1) ... [2019-10-22 11:26:45,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:45" (1/1) ... [2019-10-22 11:26:45,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:26:45,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:26:45,122 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:26:45,122 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:26:45,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b664f927-d265-4fa4-a1df-eee62e004bce/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 [2019-10-22 11:26:45,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:26:45,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:26:45,261 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:26:45,262 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 11:26:45,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:45 BoogieIcfgContainer [2019-10-22 11:26:45,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:26:45,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:26:45,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:26:45,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:26:45,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:26:44" (1/3) ... [2019-10-22 11:26:45,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16eca284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:26:45, skipping insertion in model container [2019-10-22 11:26:45,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:45" (2/3) ... [2019-10-22 11:26:45,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16eca284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:26:45, skipping insertion in model container [2019-10-22 11:26:45,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:45" (3/3) ... [2019-10-22 11:26:45,270 INFO L109 eAbstractionObserver]: Analyzing ICFG float-to-double2.c [2019-10-22 11:26:45,279 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:26:45,286 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:26:45,297 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:26:45,321 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:26:45,321 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:26:45,322 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:26:45,322 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:26:45,322 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:26:45,322 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:26:45,322 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:26:45,322 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:26:45,336 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-10-22 11:26:45,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 11:26:45,343 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:45,344 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 11:26:45,347 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:45,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:45,353 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-10-22 11:26:45,363 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:26:45,364 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938953141] [2019-10-22 11:26:45,364 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:45,364 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:26:45,364 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:26:45,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:26:45,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:26:45,459 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:26:45,459 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:26:45,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:26:45 BoogieIcfgContainer [2019-10-22 11:26:45,475 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:26:45,475 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:26:45,476 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:26:45,476 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:26:45,477 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:45" (3/4) ... [2019-10-22 11:26:45,481 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 11:26:45,483 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:26:45,485 INFO L168 Benchmark]: Toolchain (without parser) took 728.20 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -118.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:45,487 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 967.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:45,488 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -147.4 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:45,489 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.40 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:45,489 INFO L168 Benchmark]: Boogie Preprocessor took 13.59 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:45,490 INFO L168 Benchmark]: RCFGBuilder took 143.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:45,490 INFO L168 Benchmark]: TraceAbstraction took 211.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:45,491 INFO L168 Benchmark]: Witness Printer took 7.80 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:45,496 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 967.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 319.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -147.4 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.40 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.59 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 143.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 211.26 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 7.80 ms. Allocated memory is still 1.1 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: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 9, overapproximation of someUnaryDOUBLEoperation at line 6, overapproximation of someUnaryFLOAToperation at line 5. Possible FailurePath: [L5] float f = -0x1.0p-127f; [L6] double d = -0x1.0p-127; [L7] double fp = (double)f; [L9] COND TRUE !(d == fp) [L9] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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-cad4683 [2019-10-22 11:26:47,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:26:47,546 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:26:47,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:26:47,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:26:47,558 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:26:47,560 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:26:47,561 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:26:47,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:26:47,565 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:26:47,567 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:26:47,569 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:26:47,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:26:47,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:26:47,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:26:47,577 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:26:47,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:26:47,581 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:26:47,583 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:26:47,585 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:26:47,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:26:47,591 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:26:47,591 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:26:47,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:26:47,594 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:26:47,596 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:26:47,596 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:26:47,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:26:47,597 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:26:47,598 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:26:47,598 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:26:47,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:26:47,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:26:47,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:26:47,600 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:26:47,600 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:26:47,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:26:47,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:26:47,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:26:47,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:26:47,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:26:47,604 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b664f927-d265-4fa4-a1df-eee62e004bce/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:26:47,628 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:26:47,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:26:47,629 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:26:47,629 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:26:47,629 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:26:47,629 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:26:47,629 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:26:47,629 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:26:47,629 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:26:47,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:26:47,630 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:26:47,630 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:26:47,630 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:26:47,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:26:47,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:26:47,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:26:47,631 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:26:47,631 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:26:47,631 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:26:47,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:26:47,631 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:26:47,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:26:47,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:26:47,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:26:47,632 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:26:47,632 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:26:47,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:26:47,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:26:47,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:26:47,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:26:47,633 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:26:47,633 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:26:47,633 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:26:47,633 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:26:47,633 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/working_dir_b664f927-d265-4fa4-a1df-eee62e004bce/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 -> 9ab995f7fc826665e07ee96ac8969470b0927c50 [2019-10-22 11:26:47,660 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:26:47,670 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:26:47,672 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:26:47,674 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:26:47,674 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:26:47,675 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b664f927-d265-4fa4-a1df-eee62e004bce/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2019-10-22 11:26:47,717 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b664f927-d265-4fa4-a1df-eee62e004bce/bin/utaipan/data/d5911b868/4eaad356db5c47a7975655ebcdf7df01/FLAGb7a269f81 [2019-10-22 11:26:48,102 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:26:48,103 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b664f927-d265-4fa4-a1df-eee62e004bce/sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2019-10-22 11:26:48,108 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b664f927-d265-4fa4-a1df-eee62e004bce/bin/utaipan/data/d5911b868/4eaad356db5c47a7975655ebcdf7df01/FLAGb7a269f81 [2019-10-22 11:26:48,124 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b664f927-d265-4fa4-a1df-eee62e004bce/bin/utaipan/data/d5911b868/4eaad356db5c47a7975655ebcdf7df01 [2019-10-22 11:26:48,129 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:26:48,131 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:26:48,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:48,132 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:26:48,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:26:48,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:48" (1/1) ... [2019-10-22 11:26:48,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@277fead8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:48, skipping insertion in model container [2019-10-22 11:26:48,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:26:48" (1/1) ... [2019-10-22 11:26:48,147 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:26:48,160 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:26:48,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:48,301 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:26:48,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:26:48,330 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:26:48,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:48 WrapperNode [2019-10-22 11:26:48,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:26:48,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:48,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:26:48,331 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:26:48,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:48" (1/1) ... [2019-10-22 11:26:48,345 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:48" (1/1) ... [2019-10-22 11:26:48,361 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:26:48,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:26:48,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:26:48,362 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:26:48,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:48" (1/1) ... [2019-10-22 11:26:48,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:48" (1/1) ... [2019-10-22 11:26:48,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:48" (1/1) ... [2019-10-22 11:26:48,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:48" (1/1) ... [2019-10-22 11:26:48,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:48" (1/1) ... [2019-10-22 11:26:48,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:48" (1/1) ... [2019-10-22 11:26:48,476 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:48" (1/1) ... [2019-10-22 11:26:48,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:26:48,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:26:48,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:26:48,479 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:26:48,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b664f927-d265-4fa4-a1df-eee62e004bce/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 [2019-10-22 11:26:48,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:26:48,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:26:48,678 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:26:48,678 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 11:26:48,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:48 BoogieIcfgContainer [2019-10-22 11:26:48,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:26:48,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:26:48,680 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:26:48,686 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:26:48,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:26:48" (1/3) ... [2019-10-22 11:26:48,688 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2db458e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:26:48, skipping insertion in model container [2019-10-22 11:26:48,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:26:48" (2/3) ... [2019-10-22 11:26:48,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2db458e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:26:48, skipping insertion in model container [2019-10-22 11:26:48,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:48" (3/3) ... [2019-10-22 11:26:48,692 INFO L109 eAbstractionObserver]: Analyzing ICFG float-to-double2.c [2019-10-22 11:26:48,701 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:26:48,709 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:26:48,719 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:26:48,751 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:26:48,751 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:26:48,751 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:26:48,752 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:26:48,752 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:26:48,752 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:26:48,752 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:26:48,752 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:26:48,765 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-10-22 11:26:48,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 11:26:48,773 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:26:48,774 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 11:26:48,776 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:26:48,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:26:48,781 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2019-10-22 11:26:48,791 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:26:48,792 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [704733115] [2019-10-22 11:26:48,792 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b664f927-d265-4fa4-a1df-eee62e004bce/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 [2019-10-22 11:26:48,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:26:48,840 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 11:26:48,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:26:48,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:48,932 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:26:48,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:26:48,965 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [704733115] [2019-10-22 11:26:48,966 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:26:48,966 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-10-22 11:26:48,967 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784830948] [2019-10-22 11:26:48,970 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:26:48,971 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:26:48,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:26:48,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:26:48,987 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 4 states. [2019-10-22 11:26:49,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:26:49,007 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2019-10-22 11:26:49,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 11:26:49,009 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-10-22 11:26:49,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:26:49,016 INFO L225 Difference]: With dead ends: 12 [2019-10-22 11:26:49,017 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:26:49,020 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:26:49,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:26:49,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:26:49,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:26:49,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:26:49,049 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2019-10-22 11:26:49,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:26:49,051 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:26:49,051 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:26:49,051 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:26:49,051 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:26:49,252 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 11:26:49,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:26:49,299 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:26:49,299 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-10-22 11:26:49,299 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:26:49,299 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:26:49,300 INFO L439 ceAbstractionStarter]: At program point L11(lines 3 12) the Hoare annotation is: (and (= ULTIMATE.start_main_~fp~0 ((_ to_fp 11 53) roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 170141183460469231731687303715884105728.0))))) (= (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 170141183460469231731687303715884105728.0))) ULTIMATE.start_main_~d~0)) [2019-10-22 11:26:49,300 INFO L443 ceAbstractionStarter]: For program point L9(line 9) no Hoare annotation was computed. [2019-10-22 11:26:49,300 INFO L443 ceAbstractionStarter]: For program point L9-1(line 9) no Hoare annotation was computed. [2019-10-22 11:26:49,300 INFO L443 ceAbstractionStarter]: For program point L9-3(line 9) no Hoare annotation was computed. [2019-10-22 11:26:49,308 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,309 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,309 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,311 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,312 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,312 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:26:49 BoogieIcfgContainer [2019-10-22 11:26:49,314 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:26:49,315 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:26:49,315 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:26:49,315 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:26:49,316 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:26:48" (3/4) ... [2019-10-22 11:26:49,318 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:26:49,327 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 11:26:49,327 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:26:49,361 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b664f927-d265-4fa4-a1df-eee62e004bce/bin/utaipan/witness.graphml [2019-10-22 11:26:49,361 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:26:49,364 INFO L168 Benchmark]: Toolchain (without parser) took 1232.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -114.0 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:49,365 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:49,365 INFO L168 Benchmark]: CACSL2BoogieTranslator took 198.54 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:49,365 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.24 ms. Allocated memory is still 1.0 GB. Free memory is still 941.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:26:49,367 INFO L168 Benchmark]: Boogie Preprocessor took 116.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -175.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:49,367 INFO L168 Benchmark]: RCFGBuilder took 201.28 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: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:26:49,368 INFO L168 Benchmark]: TraceAbstraction took 634.27 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. [2019-10-22 11:26:49,368 INFO L168 Benchmark]: Witness Printer took 46.53 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. [2019-10-22 11:26:49,372 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 198.54 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.24 ms. Allocated memory is still 1.0 GB. Free memory is still 941.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 116.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.2 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -175.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 201.28 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: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 634.27 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. * Witness Printer took 46.53 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.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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: 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: 3]: Loop Invariant [2019-10-22 11:26:49,378 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,378 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,378 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,380 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,380 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 11:26:49,381 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: fp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/170141183460469231731687303715884105728))) && ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/170141183460469231731687303715884105728)) == d - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 4 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred 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: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 15 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 40 SizeOfPredicates, 3 NumberOfNonLiveVariables, 7 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...