./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1052b_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f9e3a1f0-9d65-4593-989c-223548eed758/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f9e3a1f0-9d65-4593-989c-223548eed758/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f9e3a1f0-9d65-4593-989c-223548eed758/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f9e3a1f0-9d65-4593-989c-223548eed758/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f9e3a1f0-9d65-4593-989c-223548eed758/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f9e3a1f0-9d65-4593-989c-223548eed758/bin-2019/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 02d9fa71bb5dc4dc4df0d2e6f9518debee649c89 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f9e3a1f0-9d65-4593-989c-223548eed758/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f9e3a1f0-9d65-4593-989c-223548eed758/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f9e3a1f0-9d65-4593-989c-223548eed758/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f9e3a1f0-9d65-4593-989c-223548eed758/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f9e3a1f0-9d65-4593-989c-223548eed758/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f9e3a1f0-9d65-4593-989c-223548eed758/bin-2019/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 02d9fa71bb5dc4dc4df0d2e6f9518debee649c89 ............................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 14:28:34,715 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:28:34,717 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:28:34,725 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:28:34,725 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:28:34,726 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:28:34,727 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:28:34,728 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:28:34,729 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:28:34,730 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:28:34,731 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:28:34,731 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:28:34,732 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:28:34,732 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:28:34,734 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:28:34,734 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:28:34,735 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:28:34,736 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:28:34,738 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:28:34,739 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:28:34,740 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:28:34,741 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:28:34,743 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:28:34,743 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:28:34,743 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:28:34,744 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:28:34,745 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:28:34,746 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:28:34,747 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:28:34,747 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:28:34,748 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:28:34,748 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:28:34,749 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:28:34,749 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:28:34,750 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:28:34,750 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:28:34,751 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f9e3a1f0-9d65-4593-989c-223548eed758/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 14:28:34,761 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:28:34,762 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:28:34,762 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:28:34,763 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 14:28:34,763 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 14:28:34,763 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 14:28:34,763 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 14:28:34,763 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 14:28:34,763 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 14:28:34,763 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 14:28:34,763 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 14:28:34,764 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 14:28:34,764 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 14:28:34,765 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:28:34,766 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:28:34,766 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:28:34,766 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:28:34,766 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:28:34,766 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:28:34,766 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:28:34,767 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:28:34,767 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:28:34,767 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:28:34,767 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:28:34,767 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:28:34,767 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:28:34,767 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:28:34,767 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:28:34,768 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:28:34,768 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:28:34,768 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:28:34,768 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:28:34,768 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:28:34,768 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 14:28:34,768 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:28:34,769 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 14:28:34,769 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 14:28:34,769 INFO L133 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_f9e3a1f0-9d65-4593-989c-223548eed758/bin-2019/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 -> 02d9fa71bb5dc4dc4df0d2e6f9518debee649c89 [2018-11-18 14:28:34,805 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:28:34,814 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:28:34,817 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:28:34,819 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:28:34,819 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:28:34,820 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f9e3a1f0-9d65-4593-989c-223548eed758/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1052b_true-unreach-call.c [2018-11-18 14:28:34,863 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f9e3a1f0-9d65-4593-989c-223548eed758/bin-2019/utaipan/data/2518c2794/7f349bf1460a45fdb047882b1dbf1a4f/FLAG2c347e5ea [2018-11-18 14:28:35,246 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:28:35,246 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f9e3a1f0-9d65-4593-989c-223548eed758/sv-benchmarks/c/float-newlib/float_req_bl_1052b_true-unreach-call.c [2018-11-18 14:28:35,252 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f9e3a1f0-9d65-4593-989c-223548eed758/bin-2019/utaipan/data/2518c2794/7f349bf1460a45fdb047882b1dbf1a4f/FLAG2c347e5ea [2018-11-18 14:28:35,661 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f9e3a1f0-9d65-4593-989c-223548eed758/bin-2019/utaipan/data/2518c2794/7f349bf1460a45fdb047882b1dbf1a4f [2018-11-18 14:28:35,665 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:28:35,668 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:28:35,671 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:28:35,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:28:35,678 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:28:35,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:28:35" (1/1) ... [2018-11-18 14:28:35,688 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@486b3616 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:28:35, skipping insertion in model container [2018-11-18 14:28:35,688 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:28:35" (1/1) ... [2018-11-18 14:28:35,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:28:35,739 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:28:35,884 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:28:35,887 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:28:35,907 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:28:35,935 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:28:35,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:28:35 WrapperNode [2018-11-18 14:28:35,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:28:35,936 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:28:35,936 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:28:35,936 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:28:35,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:28:35" (1/1) ... [2018-11-18 14:28:35,971 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:28:35" (1/1) ... [2018-11-18 14:28:35,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:28:35,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:28:35,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:28:35,983 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:28:35,994 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:28:35" (1/1) ... [2018-11-18 14:28:35,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:28:35" (1/1) ... [2018-11-18 14:28:35,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:28:35" (1/1) ... [2018-11-18 14:28:35,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:28:35" (1/1) ... [2018-11-18 14:28:36,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:28:35" (1/1) ... [2018-11-18 14:28:36,014 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:28:35" (1/1) ... [2018-11-18 14:28:36,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:28:35" (1/1) ... [2018-11-18 14:28:36,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:28:36,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:28:36,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:28:36,027 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:28:36,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:28:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f9e3a1f0-9d65-4593-989c-223548eed758/bin-2019/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 [2018-11-18 14:28:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:28:36,158 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:28:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 14:28:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 14:28:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-18 14:28:36,159 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-18 14:28:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:28:36,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:28:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 14:28:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:28:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-11-18 14:28:36,159 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-11-18 14:28:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:28:36,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:28:36,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 14:28:36,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 14:28:36,452 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:28:36,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:28:36 BoogieIcfgContainer [2018-11-18 14:28:36,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:28:36,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:28:36,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:28:36,457 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:28:36,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:28:35" (1/3) ... [2018-11-18 14:28:36,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f6457d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:28:36, skipping insertion in model container [2018-11-18 14:28:36,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:28:35" (2/3) ... [2018-11-18 14:28:36,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f6457d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:28:36, skipping insertion in model container [2018-11-18 14:28:36,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:28:36" (3/3) ... [2018-11-18 14:28:36,462 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052b_true-unreach-call.c [2018-11-18 14:28:36,471 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:28:36,477 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:28:36,500 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:28:36,563 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:28:36,563 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:28:36,563 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:28:36,563 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:28:36,563 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:28:36,563 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:28:36,563 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:28:36,564 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:28:36,584 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-11-18 14:28:36,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 14:28:36,593 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:28:36,594 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:28:36,596 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:28:36,602 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:28:36,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1120536925, now seen corresponding path program 1 times [2018-11-18 14:28:36,604 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:28:36,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:28:36,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:28:36,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:28:36,646 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:28:36,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:28:36,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:28:36,726 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:28:36,726 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:28:36,726 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:28:36,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 14:28:36,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 14:28:36,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:28:36,745 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-11-18 14:28:36,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:28:36,764 INFO L93 Difference]: Finished difference Result 76 states and 107 transitions. [2018-11-18 14:28:36,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 14:28:36,765 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-18 14:28:36,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:28:36,773 INFO L225 Difference]: With dead ends: 76 [2018-11-18 14:28:36,774 INFO L226 Difference]: Without dead ends: 38 [2018-11-18 14:28:36,778 INFO L604 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 [2018-11-18 14:28:36,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-18 14:28:36,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-11-18 14:28:36,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-18 14:28:36,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2018-11-18 14:28:36,812 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 24 [2018-11-18 14:28:36,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:28:36,812 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2018-11-18 14:28:36,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 14:28:36,812 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2018-11-18 14:28:36,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 14:28:36,813 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:28:36,814 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:28:36,814 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:28:36,814 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:28:36,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1175652165, now seen corresponding path program 1 times [2018-11-18 14:28:36,814 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:28:36,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:28:36,815 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:28:36,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:28:36,816 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:28:36,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:28:36,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:28:36,917 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 14:28:36,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:28:36 BoogieIcfgContainer [2018-11-18 14:28:36,943 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 14:28:36,944 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:28:36,944 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:28:36,944 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:28:36,944 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:28:36" (3/4) ... [2018-11-18 14:28:36,948 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 14:28:36,948 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:28:36,948 INFO L168 Benchmark]: Toolchain (without parser) took 1281.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 959.8 MB in the beginning and 1.1 GB in the end (delta: -131.4 MB). Peak memory consumption was 11.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:28:36,950 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:28:36,950 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.90 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 940.8 MB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. [2018-11-18 14:28:36,951 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.45 ms. Allocated memory is still 1.0 GB. Free memory is still 940.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:28:36,951 INFO L168 Benchmark]: Boogie Preprocessor took 43.87 ms. Allocated memory is still 1.0 GB. Free memory was 940.8 MB in the beginning and 938.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:28:36,952 INFO L168 Benchmark]: RCFGBuilder took 426.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -179.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2018-11-18 14:28:36,953 INFO L168 Benchmark]: TraceAbstraction took 489.93 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-11-18 14:28:36,953 INFO L168 Benchmark]: Witness Printer took 4.03 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. [2018-11-18 14:28:36,956 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 264.90 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 940.8 MB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.45 ms. Allocated memory is still 1.0 GB. Free memory is still 940.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.87 ms. Allocated memory is still 1.0 GB. Free memory was 940.8 MB in the beginning and 938.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 426.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -179.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 489.93 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.03 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: 80]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 75, overapproximation of bitwiseAnd at line 64. Possible FailurePath: [L11] static const float huge_floor = 1.0e30; VAL [\old(huge_floor)=6442450947, huge_floor=1000000000000000000000000000000] [L75] float x = -1.0f / 0.0f; VAL [huge_floor=1000000000000000000000000000000] [L76] CALL, EXPR floor_float(x) VAL [\old(x)=6442450951, huge_floor=1000000000000000000000000000000] [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [\old(x)=6442450951, huge_floor=1000000000000000000000000000000, x=6442450951] [L17] FCALL ieee_float_shape_type gf_u; [L18] FCALL gf_u.value = (x) [L19] EXPR, FCALL gf_u.word [L19] (i0) = gf_u.word [L20] COND FALSE !(0) VAL [\old(x)=6442450951, huge_floor=1000000000000000000000000000000, i0=3, x=6442450951] [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [\old(x)=6442450951, huge_floor=1000000000000000000000000000000, i=-18014397452517376, i0=3, j0=2147483647, x=6442450951] [L23] COND FALSE !(j0 < 23) VAL [\old(x)=6442450951, huge_floor=1000000000000000000000000000000, i=-18014397452517376, i0=3, j0=2147483647, x=6442450951] [L43] COND FALSE !(!((ix) < 0x7f800000L)) [L46] RET return x; VAL [\old(x)=6442450951, \result=6442450951, huge_floor=1000000000000000000000000000000, i=-18014397452517376, i0=3, j0=2147483647, x=6442450951] [L76] EXPR floor_float(x) VAL [floor_float(x)=6442450951, huge_floor=1000000000000000000000000000000, x=6442450951] [L76] float res = floor_float(x); [L79] CALL, EXPR isinf_float(res) VAL [\old(x)=6442450951, huge_floor=1000000000000000000000000000000] [L58] __int32_t ix; VAL [\old(x)=6442450951, huge_floor=1000000000000000000000000000000, x=6442450951] [L60] FCALL ieee_float_shape_type gf_u; [L61] FCALL gf_u.value = (x) [L62] EXPR, FCALL gf_u.word [L62] (ix) = gf_u.word [L63] COND FALSE !(0) VAL [\old(x)=6442450951, huge_floor=1000000000000000000000000000000, ix=-2147483648, x=6442450951] [L64] ix &= 0x7fffffff [L65] RET return ((ix) == 0x7f800000L); VAL [\old(x)=6442450951, \result=0, huge_floor=1000000000000000000000000000000, ix=0, x=6442450951] [L79] EXPR isinf_float(res) VAL [huge_floor=1000000000000000000000000000000, isinf_float(res)=0, res=6442450951, x=6442450951] [L79] COND TRUE !isinf_float(res) [L80] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000, res=6442450951, x=6442450951] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 50 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=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 529 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.23-5842f4b [2018-11-18 14:28:39,105 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:28:39,107 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:28:39,124 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:28:39,124 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:28:39,133 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:28:39,134 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:28:39,135 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:28:39,136 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:28:39,137 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:28:39,138 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:28:39,138 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:28:39,139 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:28:39,139 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:28:39,140 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:28:39,141 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:28:39,142 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:28:39,143 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:28:39,144 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:28:39,145 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:28:39,146 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:28:39,147 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:28:39,149 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:28:39,149 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:28:39,149 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:28:39,150 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:28:39,150 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:28:39,151 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:28:39,152 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:28:39,153 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:28:39,153 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:28:39,154 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:28:39,154 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:28:39,154 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:28:39,155 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:28:39,155 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:28:39,155 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f9e3a1f0-9d65-4593-989c-223548eed758/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 14:28:39,172 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:28:39,173 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:28:39,173 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:28:39,173 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 14:28:39,173 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 14:28:39,174 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 14:28:39,174 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 14:28:39,174 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 14:28:39,174 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 14:28:39,174 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 14:28:39,175 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:28:39,175 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:28:39,175 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:28:39,175 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:28:39,175 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:28:39,175 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:28:39,175 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:28:39,176 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 14:28:39,176 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 14:28:39,176 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:28:39,176 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:28:39,176 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:28:39,176 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:28:39,178 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:28:39,178 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:28:39,179 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:28:39,179 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:28:39,179 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:28:39,179 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:28:39,179 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:28:39,179 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:28:39,179 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 14:28:39,179 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:28:39,179 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 14:28:39,180 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 14:28:39,180 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_f9e3a1f0-9d65-4593-989c-223548eed758/bin-2019/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 -> 02d9fa71bb5dc4dc4df0d2e6f9518debee649c89 [2018-11-18 14:28:39,211 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:28:39,220 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:28:39,223 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:28:39,224 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:28:39,224 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:28:39,225 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f9e3a1f0-9d65-4593-989c-223548eed758/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1052b_true-unreach-call.c [2018-11-18 14:28:39,265 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f9e3a1f0-9d65-4593-989c-223548eed758/bin-2019/utaipan/data/e173b67d5/b539ac40bc8a4fa7a2c5823dade8392e/FLAG21b76fcf1 [2018-11-18 14:28:39,602 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:28:39,603 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f9e3a1f0-9d65-4593-989c-223548eed758/sv-benchmarks/c/float-newlib/float_req_bl_1052b_true-unreach-call.c [2018-11-18 14:28:39,609 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f9e3a1f0-9d65-4593-989c-223548eed758/bin-2019/utaipan/data/e173b67d5/b539ac40bc8a4fa7a2c5823dade8392e/FLAG21b76fcf1 [2018-11-18 14:28:40,033 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f9e3a1f0-9d65-4593-989c-223548eed758/bin-2019/utaipan/data/e173b67d5/b539ac40bc8a4fa7a2c5823dade8392e [2018-11-18 14:28:40,036 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:28:40,037 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:28:40,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:28:40,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:28:40,041 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:28:40,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:28:40" (1/1) ... [2018-11-18 14:28:40,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3270a5fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:28:40, skipping insertion in model container [2018-11-18 14:28:40,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:28:40" (1/1) ... [2018-11-18 14:28:40,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:28:40,070 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:28:40,259 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:28:40,264 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:28:40,289 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:28:40,309 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:28:40,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:28:40 WrapperNode [2018-11-18 14:28:40,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:28:40,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:28:40,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:28:40,310 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:28:40,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:28:40" (1/1) ... [2018-11-18 14:28:40,326 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:28:40" (1/1) ... [2018-11-18 14:28:40,332 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:28:40,333 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:28:40,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:28:40,333 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:28:40,341 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:28:40" (1/1) ... [2018-11-18 14:28:40,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:28:40" (1/1) ... [2018-11-18 14:28:40,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:28:40" (1/1) ... [2018-11-18 14:28:40,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:28:40" (1/1) ... [2018-11-18 14:28:40,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:28:40" (1/1) ... [2018-11-18 14:28:40,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:28:40" (1/1) ... [2018-11-18 14:28:40,362 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:28:40" (1/1) ... [2018-11-18 14:28:40,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:28:40,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:28:40,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:28:40,365 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:28:40,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:28:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f9e3a1f0-9d65-4593-989c-223548eed758/bin-2019/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 [2018-11-18 14:28:40,454 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:28:40,454 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:28:40,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 14:28:40,454 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-18 14:28:40,454 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-18 14:28:40,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:28:40,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:28:40,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:28:40,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 14:28:40,455 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-11-18 14:28:40,455 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-11-18 14:28:40,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:28:40,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:28:40,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 14:28:40,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 14:28:40,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 14:28:40,879 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:28:41,115 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:28:41,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:28:41 BoogieIcfgContainer [2018-11-18 14:28:41,115 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:28:41,116 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:28:41,116 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:28:41,119 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:28:41,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:28:40" (1/3) ... [2018-11-18 14:28:41,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f9d1805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:28:41, skipping insertion in model container [2018-11-18 14:28:41,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:28:40" (2/3) ... [2018-11-18 14:28:41,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f9d1805 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:28:41, skipping insertion in model container [2018-11-18 14:28:41,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:28:41" (3/3) ... [2018-11-18 14:28:41,122 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052b_true-unreach-call.c [2018-11-18 14:28:41,127 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:28:41,133 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:28:41,146 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:28:41,168 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:28:41,168 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:28:41,168 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:28:41,168 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:28:41,168 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:28:41,169 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:28:41,169 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:28:41,169 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:28:41,169 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:28:41,184 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-11-18 14:28:41,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 14:28:41,189 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:28:41,190 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:28:41,191 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:28:41,195 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:28:41,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1440037834, now seen corresponding path program 1 times [2018-11-18 14:28:41,198 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:28:41,199 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f9e3a1f0-9d65-4593-989c-223548eed758/bin-2019/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 [2018-11-18 14:28:41,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:28:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:28:41,273 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:28:41,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:28:41,289 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:28:41,304 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:28:41,304 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:28:41,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 14:28:41,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 14:28:41,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:28:41,316 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 2 states. [2018-11-18 14:28:41,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:28:41,331 INFO L93 Difference]: Finished difference Result 74 states and 105 transitions. [2018-11-18 14:28:41,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 14:28:41,332 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-11-18 14:28:41,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:28:41,338 INFO L225 Difference]: With dead ends: 74 [2018-11-18 14:28:41,338 INFO L226 Difference]: Without dead ends: 37 [2018-11-18 14:28:41,341 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:28:41,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-18 14:28:41,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-18 14:28:41,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-18 14:28:41,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2018-11-18 14:28:41,373 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 23 [2018-11-18 14:28:41,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:28:41,373 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2018-11-18 14:28:41,373 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 14:28:41,374 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2018-11-18 14:28:41,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 14:28:41,374 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:28:41,375 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:28:41,375 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:28:41,375 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:28:41,375 INFO L82 PathProgramCache]: Analyzing trace with hash 909159838, now seen corresponding path program 1 times [2018-11-18 14:28:41,376 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:28:41,376 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f9e3a1f0-9d65-4593-989c-223548eed758/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-11-18 14:28:41,383 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-18 14:28:41,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:28:41,445 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:28:41,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:28:41,614 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:28:41,625 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:28:41,625 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 14:28:41,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:28:41,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:28:41,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:28:41,627 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand 7 states. [2018-11-18 14:28:41,926 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-11-18 14:28:42,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:28:42,534 INFO L93 Difference]: Finished difference Result 59 states and 66 transitions. [2018-11-18 14:28:42,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 14:28:42,535 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-11-18 14:28:42,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:28:42,537 INFO L225 Difference]: With dead ends: 59 [2018-11-18 14:28:42,537 INFO L226 Difference]: Without dead ends: 43 [2018-11-18 14:28:42,538 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 14:28:42,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-18 14:28:42,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 37. [2018-11-18 14:28:42,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-18 14:28:42,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2018-11-18 14:28:42,544 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 25 [2018-11-18 14:28:42,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:28:42,544 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2018-11-18 14:28:42,544 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 14:28:42,544 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2018-11-18 14:28:42,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 14:28:42,545 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:28:42,545 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:28:42,545 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:28:42,546 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:28:42,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1202562845, now seen corresponding path program 1 times [2018-11-18 14:28:42,546 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:28:42,546 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f9e3a1f0-9d65-4593-989c-223548eed758/bin-2019/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 [2018-11-18 14:28:42,560 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:28:42,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:28:42,610 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:28:43,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:28:43,310 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:28:43,323 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:28:43,324 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-18 14:28:43,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-18 14:28:43,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 14:28:43,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-11-18 14:28:43,325 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand 11 states. [2018-11-18 14:28:43,943 WARN L180 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-18 14:28:45,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:28:45,047 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2018-11-18 14:28:45,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 14:28:45,048 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2018-11-18 14:28:45,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:28:45,049 INFO L225 Difference]: With dead ends: 46 [2018-11-18 14:28:45,049 INFO L226 Difference]: Without dead ends: 38 [2018-11-18 14:28:45,050 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-11-18 14:28:45,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-18 14:28:45,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2018-11-18 14:28:45,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-18 14:28:45,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2018-11-18 14:28:45,057 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 25 [2018-11-18 14:28:45,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:28:45,057 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2018-11-18 14:28:45,057 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-18 14:28:45,057 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2018-11-18 14:28:45,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 14:28:45,058 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:28:45,058 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:28:45,058 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:28:45,058 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:28:45,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1964533966, now seen corresponding path program 1 times [2018-11-18 14:28:45,059 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:28:45,059 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f9e3a1f0-9d65-4593-989c-223548eed758/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-18 14:28:45,062 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:28:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:28:45,096 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:28:45,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:28:45,182 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:28:45,192 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:28:45,192 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 14:28:45,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:28:45,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:28:45,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:28:45,193 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand 7 states. [2018-11-18 14:28:45,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:28:45,849 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2018-11-18 14:28:45,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 14:28:45,850 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-18 14:28:45,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:28:45,850 INFO L225 Difference]: With dead ends: 42 [2018-11-18 14:28:45,851 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 14:28:45,851 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-11-18 14:28:45,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 14:28:45,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 14:28:45,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 14:28:45,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 14:28:45,852 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-11-18 14:28:45,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:28:45,852 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 14:28:45,852 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 14:28:45,852 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 14:28:45,852 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 14:28:45,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 14:28:46,003 INFO L425 ceAbstractionStarter]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2018-11-18 14:28:46,004 INFO L421 ceAbstractionStarter]: At program point L59-3(lines 59 63) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-11-18 14:28:46,004 INFO L425 ceAbstractionStarter]: For program point L59-4(lines 59 63) no Hoare annotation was computed. [2018-11-18 14:28:46,004 INFO L428 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 57 66) the Hoare annotation is: true [2018-11-18 14:28:46,004 INFO L425 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 57 66) no Hoare annotation was computed. [2018-11-18 14:28:46,004 INFO L425 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 57 66) no Hoare annotation was computed. [2018-11-18 14:28:46,004 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 14:28:46,004 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 14:28:46,004 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 14:28:46,005 INFO L425 ceAbstractionStarter]: For program point L23(lines 23 47) no Hoare annotation was computed. [2018-11-18 14:28:46,005 INFO L425 ceAbstractionStarter]: For program point L48(lines 48 52) no Hoare annotation was computed. [2018-11-18 14:28:46,005 INFO L425 ceAbstractionStarter]: For program point L48-2(lines 13 54) no Hoare annotation was computed. [2018-11-18 14:28:46,005 INFO L425 ceAbstractionStarter]: For program point L48-3(lines 48 52) no Hoare annotation was computed. [2018-11-18 14:28:46,005 INFO L425 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2018-11-18 14:28:46,005 INFO L425 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-11-18 14:28:46,005 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 41) no Hoare annotation was computed. [2018-11-18 14:28:46,005 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-11-18 14:28:46,005 INFO L421 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (= |floor_float_#in~x| floor_float_~x) [2018-11-18 14:28:46,006 INFO L425 ceAbstractionStarter]: For program point L16-4(lines 16 20) no Hoare annotation was computed. [2018-11-18 14:28:46,006 INFO L425 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-11-18 14:28:46,006 INFO L425 ceAbstractionStarter]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2018-11-18 14:28:46,006 INFO L425 ceAbstractionStarter]: For program point floor_floatEXIT(lines 13 54) no Hoare annotation was computed. [2018-11-18 14:28:46,006 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-11-18 14:28:46,006 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-11-18 14:28:46,006 INFO L425 ceAbstractionStarter]: For program point floor_floatFINAL(lines 13 54) no Hoare annotation was computed. [2018-11-18 14:28:46,006 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2018-11-18 14:28:46,006 INFO L428 ceAbstractionStarter]: At program point floor_floatENTRY(lines 13 54) the Hoare annotation is: true [2018-11-18 14:28:46,006 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 46) no Hoare annotation was computed. [2018-11-18 14:28:46,007 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 14:28:46,007 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 14:28:46,007 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 14:28:46,007 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 14:28:46,007 INFO L425 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2018-11-18 14:28:46,007 INFO L421 ceAbstractionStarter]: At program point L79(line 79) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (and (= (fp.add roundNearestTiesToEven .cse0 .cse0) main_~res~0) (= main_~x~0 .cse0))) [2018-11-18 14:28:46,007 INFO L425 ceAbstractionStarter]: For program point L79-1(lines 79 82) no Hoare annotation was computed. [2018-11-18 14:28:46,007 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 68 85) the Hoare annotation is: true [2018-11-18 14:28:46,008 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 68 85) no Hoare annotation was computed. [2018-11-18 14:28:46,008 INFO L421 ceAbstractionStarter]: At program point L76(line 76) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) [2018-11-18 14:28:46,008 INFO L425 ceAbstractionStarter]: For program point L76-1(line 76) no Hoare annotation was computed. [2018-11-18 14:28:46,008 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 80) no Hoare annotation was computed. [2018-11-18 14:28:46,008 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 68 85) no Hoare annotation was computed. [2018-11-18 14:28:46,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:28:46 BoogieIcfgContainer [2018-11-18 14:28:46,018 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 14:28:46,018 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:28:46,018 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:28:46,019 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:28:46,019 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:28:41" (3/4) ... [2018-11-18 14:28:46,022 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 14:28:46,027 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-11-18 14:28:46,027 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 14:28:46,027 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_float [2018-11-18 14:28:46,027 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 14:28:46,032 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-11-18 14:28:46,032 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-18 14:28:46,032 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 14:28:46,051 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 14:28:46,051 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 14:28:46,072 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f9e3a1f0-9d65-4593-989c-223548eed758/bin-2019/utaipan/witness.graphml [2018-11-18 14:28:46,072 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:28:46,073 INFO L168 Benchmark]: Toolchain (without parser) took 6036.69 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 73.9 MB). Free memory was 951.9 MB in the beginning and 866.9 MB in the end (delta: 85.0 MB). Peak memory consumption was 158.9 MB. Max. memory is 11.5 GB. [2018-11-18 14:28:46,074 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:28:46,074 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.06 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 14:28:46,074 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.20 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:28:46,074 INFO L168 Benchmark]: Boogie Preprocessor took 32.24 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:28:46,075 INFO L168 Benchmark]: RCFGBuilder took 750.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 73.9 MB). Free memory was 935.8 MB in the beginning and 1.0 GB in the end (delta: -103.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:28:46,075 INFO L168 Benchmark]: TraceAbstraction took 4901.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 874.0 MB in the end (delta: 165.2 MB). Peak memory consumption was 165.2 MB. Max. memory is 11.5 GB. [2018-11-18 14:28:46,075 INFO L168 Benchmark]: Witness Printer took 53.79 ms. Allocated memory is still 1.1 GB. Free memory was 874.0 MB in the beginning and 866.9 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2018-11-18 14:28:46,077 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 272.06 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.20 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.24 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 750.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 73.9 MB). Free memory was 935.8 MB in the beginning and 1.0 GB in the end (delta: -103.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4901.95 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 874.0 MB in the end (delta: 165.2 MB). Peak memory consumption was 165.2 MB. Max. memory is 11.5 GB. * Witness Printer took 53.79 ms. Allocated memory is still 1.1 GB. Free memory was 874.0 MB in the beginning and 866.9 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 80]: 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: 59]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 41 locations, 1 error locations. SAFE Result, 4.8s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 3.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 120 SDtfs, 164 SDslu, 388 SDs, 0 SdLazy, 258 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 16 PreInvPairs, 19 NumberOfFragments, 49 HoareAnnotationTreeSize, 16 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 95 ConstructedInterpolants, 11 QuantifiedInterpolants, 11478 SizeOfPredicates, 14 NumberOfNonLiveVariables, 272 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...