./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1092d_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6faa0320-2b1d-4784-87b6-871c53074fcc/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6faa0320-2b1d-4784-87b6-871c53074fcc/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6faa0320-2b1d-4784-87b6-871c53074fcc/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6faa0320-2b1d-4784-87b6-871c53074fcc/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092d_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6faa0320-2b1d-4784-87b6-871c53074fcc/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6faa0320-2b1d-4784-87b6-871c53074fcc/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 b88866a66e040da6249cd5acf77993c03d3c500f ............................................................................................................................................................................................................................................................................................................................... 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_6faa0320-2b1d-4784-87b6-871c53074fcc/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6faa0320-2b1d-4784-87b6-871c53074fcc/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6faa0320-2b1d-4784-87b6-871c53074fcc/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6faa0320-2b1d-4784-87b6-871c53074fcc/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092d_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6faa0320-2b1d-4784-87b6-871c53074fcc/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6faa0320-2b1d-4784-87b6-871c53074fcc/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 b88866a66e040da6249cd5acf77993c03d3c500f ........................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 06:14:18,208 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 06:14:18,209 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 06:14:18,217 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 06:14:18,217 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 06:14:18,218 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 06:14:18,218 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 06:14:18,219 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 06:14:18,220 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 06:14:18,221 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 06:14:18,221 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 06:14:18,222 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 06:14:18,222 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 06:14:18,223 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 06:14:18,224 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 06:14:18,224 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 06:14:18,225 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 06:14:18,226 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 06:14:18,227 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 06:14:18,228 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 06:14:18,229 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 06:14:18,230 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 06:14:18,231 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 06:14:18,231 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 06:14:18,231 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 06:14:18,232 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 06:14:18,233 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 06:14:18,233 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 06:14:18,234 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 06:14:18,235 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 06:14:18,235 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 06:14:18,235 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 06:14:18,235 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 06:14:18,235 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 06:14:18,236 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 06:14:18,236 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 06:14:18,236 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6faa0320-2b1d-4784-87b6-871c53074fcc/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 06:14:18,246 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 06:14:18,246 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 06:14:18,247 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 06:14:18,247 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 06:14:18,247 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 06:14:18,247 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 06:14:18,247 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 06:14:18,247 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 06:14:18,247 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 06:14:18,247 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 06:14:18,248 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 06:14:18,248 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 06:14:18,248 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 06:14:18,248 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 06:14:18,248 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 06:14:18,248 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 06:14:18,248 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 06:14:18,249 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 06:14:18,249 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 06:14:18,249 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 06:14:18,249 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 06:14:18,249 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 06:14:18,249 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 06:14:18,249 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 06:14:18,250 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 06:14:18,250 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 06:14:18,250 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 06:14:18,250 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 06:14:18,250 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 06:14:18,250 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 06:14:18,250 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 06:14:18,250 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 06:14:18,250 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 06:14:18,250 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 06:14:18,250 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 06:14:18,251 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 06:14:18,251 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_6faa0320-2b1d-4784-87b6-871c53074fcc/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 -> b88866a66e040da6249cd5acf77993c03d3c500f [2018-12-09 06:14:18,269 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 06:14:18,278 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 06:14:18,280 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 06:14:18,281 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 06:14:18,281 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 06:14:18,282 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6faa0320-2b1d-4784-87b6-871c53074fcc/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1092d_true-unreach-call.c [2018-12-09 06:14:18,317 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6faa0320-2b1d-4784-87b6-871c53074fcc/bin-2019/utaipan/data/f2adba39d/b0740af01ab64feda32910b9f5c1cea4/FLAGfd6bac307 [2018-12-09 06:14:18,615 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 06:14:18,615 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6faa0320-2b1d-4784-87b6-871c53074fcc/sv-benchmarks/c/float-newlib/float_req_bl_1092d_true-unreach-call.c [2018-12-09 06:14:18,619 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6faa0320-2b1d-4784-87b6-871c53074fcc/bin-2019/utaipan/data/f2adba39d/b0740af01ab64feda32910b9f5c1cea4/FLAGfd6bac307 [2018-12-09 06:14:19,054 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6faa0320-2b1d-4784-87b6-871c53074fcc/bin-2019/utaipan/data/f2adba39d/b0740af01ab64feda32910b9f5c1cea4 [2018-12-09 06:14:19,056 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 06:14:19,058 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 06:14:19,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 06:14:19,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 06:14:19,060 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 06:14:19,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:14:19" (1/1) ... [2018-12-09 06:14:19,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65ffd513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:14:19, skipping insertion in model container [2018-12-09 06:14:19,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:14:19" (1/1) ... [2018-12-09 06:14:19,067 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 06:14:19,081 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 06:14:19,177 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 06:14:19,179 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 06:14:19,195 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 06:14:19,207 INFO L195 MainTranslator]: Completed translation [2018-12-09 06:14:19,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:14:19 WrapperNode [2018-12-09 06:14:19,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 06:14:19,207 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 06:14:19,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 06:14:19,208 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 06:14:19,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:14:19" (1/1) ... [2018-12-09 06:14:19,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:14:19" (1/1) ... [2018-12-09 06:14:19,222 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 06:14:19,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 06:14:19,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 06:14:19,222 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 06:14:19,256 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:14:19" (1/1) ... [2018-12-09 06:14:19,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:14:19" (1/1) ... [2018-12-09 06:14:19,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:14:19" (1/1) ... [2018-12-09 06:14:19,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:14:19" (1/1) ... [2018-12-09 06:14:19,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:14:19" (1/1) ... [2018-12-09 06:14:19,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:14:19" (1/1) ... [2018-12-09 06:14:19,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:14:19" (1/1) ... [2018-12-09 06:14:19,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 06:14:19,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 06:14:19,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 06:14:19,270 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 06:14:19,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:14:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6faa0320-2b1d-4784-87b6-871c53074fcc/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 [2018-12-09 06:14:19,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 06:14:19,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 06:14:19,301 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-12-09 06:14:19,301 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-12-09 06:14:19,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 06:14:19,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 06:14:19,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 06:14:19,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 06:14:19,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 06:14:19,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 06:14:19,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 06:14:19,302 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 06:14:19,302 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 06:14:19,302 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-12-09 06:14:19,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-12-09 06:14:19,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 06:14:19,442 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 06:14:19,442 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-09 06:14:19,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:14:19 BoogieIcfgContainer [2018-12-09 06:14:19,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 06:14:19,443 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 06:14:19,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 06:14:19,445 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 06:14:19,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:14:19" (1/3) ... [2018-12-09 06:14:19,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@115f7a72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:14:19, skipping insertion in model container [2018-12-09 06:14:19,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:14:19" (2/3) ... [2018-12-09 06:14:19,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@115f7a72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:14:19, skipping insertion in model container [2018-12-09 06:14:19,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:14:19" (3/3) ... [2018-12-09 06:14:19,447 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092d_true-unreach-call.c [2018-12-09 06:14:19,453 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 06:14:19,458 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 06:14:19,467 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 06:14:19,487 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 06:14:19,488 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 06:14:19,488 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 06:14:19,488 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 06:14:19,488 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 06:14:19,488 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 06:14:19,488 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 06:14:19,488 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 06:14:19,499 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-12-09 06:14:19,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 06:14:19,502 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 06:14:19,503 INFO L402 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] [2018-12-09 06:14:19,504 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 06:14:19,507 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 06:14:19,507 INFO L82 PathProgramCache]: Analyzing trace with hash -104285294, now seen corresponding path program 1 times [2018-12-09 06:14:19,509 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 06:14:19,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 06:14:19,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 06:14:19,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 06:14:19,537 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 06:14:19,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 06:14:19,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 06:14:19,587 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 06:14:19,588 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 06:14:19,588 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 06:14:19,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 06:14:19,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 06:14:19,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 06:14:19,600 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-12-09 06:14:19,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 06:14:19,613 INFO L93 Difference]: Finished difference Result 76 states and 107 transitions. [2018-12-09 06:14:19,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 06:14:19,613 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-12-09 06:14:19,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 06:14:19,618 INFO L225 Difference]: With dead ends: 76 [2018-12-09 06:14:19,619 INFO L226 Difference]: Without dead ends: 38 [2018-12-09 06:14:19,620 INFO L631 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 [2018-12-09 06:14:19,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-12-09 06:14:19,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-12-09 06:14:19,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-09 06:14:19,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2018-12-09 06:14:19,642 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 24 [2018-12-09 06:14:19,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 06:14:19,642 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2018-12-09 06:14:19,642 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 06:14:19,643 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2018-12-09 06:14:19,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 06:14:19,643 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 06:14:19,643 INFO L402 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] [2018-12-09 06:14:19,643 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 06:14:19,644 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 06:14:19,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1628048040, now seen corresponding path program 1 times [2018-12-09 06:14:19,644 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 06:14:19,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 06:14:19,644 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 06:14:19,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 06:14:19,645 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 06:14:19,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 06:14:19,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 06:14:19,712 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 06:14:19,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:14:19 BoogieIcfgContainer [2018-12-09 06:14:19,729 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 06:14:19,729 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 06:14:19,729 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 06:14:19,730 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 06:14:19,730 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:14:19" (3/4) ... [2018-12-09 06:14:19,732 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 06:14:19,732 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 06:14:19,732 INFO L168 Benchmark]: Toolchain (without parser) took 675.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 949.7 MB in the beginning and 1.0 GB in the end (delta: -98.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 11.5 GB. [2018-12-09 06:14:19,733 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 06:14:19,734 INFO L168 Benchmark]: CACSL2BoogieTranslator took 149.15 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 938.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 06:14:19,734 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.52 ms. Allocated memory is still 1.0 GB. Free memory was 938.9 MB in the beginning and 936.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 06:14:19,734 INFO L168 Benchmark]: Boogie Preprocessor took 47.67 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -168.7 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-12-09 06:14:19,735 INFO L168 Benchmark]: RCFGBuilder took 173.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-12-09 06:14:19,735 INFO L168 Benchmark]: TraceAbstraction took 285.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-12-09 06:14:19,736 INFO L168 Benchmark]: Witness Printer took 2.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 06:14:19,737 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 149.15 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 938.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.52 ms. Allocated memory is still 1.0 GB. Free memory was 938.9 MB in the beginning and 936.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 47.67 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -168.7 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 173.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 285.94 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Witness Printer took 2.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 81]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 64. Possible FailurePath: [L11] static const float huge_ceil = 1.0e30; VAL [\old(huge_ceil)=6442450949, huge_ceil=1000000000000000000000000000000] [L76] float x = -1.0f / 0.0f; VAL [huge_ceil=1000000000000000000000000000000] [L77] CALL, EXPR ceil_float(x) VAL [\old(x)=6442450952, huge_ceil=1000000000000000000000000000000] [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [\old(x)=6442450952, huge_ceil=1000000000000000000000000000000, x=6442450952] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (i0) = gf_u.word [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [\old(x)=6442450952, huge_ceil=1000000000000000000000000000000, i=-18014398509481985, i0=-2147483648, j0=2147483520, x=6442450952] [L23] COND FALSE !(j0 < 23) VAL [\old(x)=6442450952, huge_ceil=1000000000000000000000000000000, i=-18014398509481985, i0=-2147483648, j0=2147483520, x=6442450952] [L43] COND TRUE !((ix) < 0x7f800000L) [L44] return x + x; VAL [\old(x)=6442450952, huge_ceil=1000000000000000000000000000000, i=-18014398509481985, i0=-2147483648, j0=2147483520, x=6442450952] [L77] RET, EXPR ceil_float(x) VAL [ceil_float(x)=6442450948, huge_ceil=1000000000000000000000000000000, x=6442450952] [L77] float res = ceil_float(x); [L80] CALL, EXPR isinf_float(res) VAL [\old(x)=6442450948, huge_ceil=1000000000000000000000000000000] [L58] __int32_t ix; VAL [\old(x)=6442450948, huge_ceil=1000000000000000000000000000000, x=6442450948] [L60] ieee_float_shape_type gf_u; [L61] gf_u.value = (x) [L62] EXPR gf_u.word [L62] (ix) = gf_u.word [L64] ix &= 0x7fffffff [L65] return ((ix) == 0x7f800000L); VAL [\old(x)=6442450948, \result=0, huge_ceil=1000000000000000000000000000000, ix=0, x=6442450948] [L80] RET, EXPR isinf_float(res) VAL [huge_ceil=1000000000000000000000000000000, isinf_float(res)=0, res=6442450948, x=6442450952] [L80] COND TRUE !isinf_float(res) [L81] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000, res=6442450948, x=6442450952] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. UNSAFE Result, 0.2s 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 0.1.23-635dfa2 [2018-12-09 06:14:21,144 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 06:14:21,146 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 06:14:21,153 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 06:14:21,154 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 06:14:21,154 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 06:14:21,155 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 06:14:21,156 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 06:14:21,157 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 06:14:21,158 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 06:14:21,158 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 06:14:21,158 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 06:14:21,159 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 06:14:21,160 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 06:14:21,160 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 06:14:21,161 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 06:14:21,162 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 06:14:21,163 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 06:14:21,164 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 06:14:21,165 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 06:14:21,166 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 06:14:21,167 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 06:14:21,169 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 06:14:21,169 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 06:14:21,169 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 06:14:21,170 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 06:14:21,170 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 06:14:21,171 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 06:14:21,171 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 06:14:21,172 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 06:14:21,172 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 06:14:21,173 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 06:14:21,173 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 06:14:21,173 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 06:14:21,174 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 06:14:21,174 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 06:14:21,174 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6faa0320-2b1d-4784-87b6-871c53074fcc/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 06:14:21,185 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 06:14:21,185 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 06:14:21,186 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 06:14:21,186 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 06:14:21,186 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 06:14:21,186 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 06:14:21,186 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 06:14:21,186 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 06:14:21,186 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 06:14:21,186 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 06:14:21,187 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 06:14:21,187 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 06:14:21,187 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 06:14:21,187 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 06:14:21,187 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 06:14:21,187 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 06:14:21,187 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 06:14:21,188 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 06:14:21,188 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 06:14:21,188 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 06:14:21,188 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 06:14:21,188 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 06:14:21,188 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 06:14:21,188 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 06:14:21,188 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 06:14:21,188 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 06:14:21,189 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 06:14:21,189 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 06:14:21,189 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 06:14:21,189 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 06:14:21,189 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 06:14:21,189 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 06:14:21,189 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 06:14:21,189 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 06:14:21,189 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 06:14:21,190 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_6faa0320-2b1d-4784-87b6-871c53074fcc/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 -> b88866a66e040da6249cd5acf77993c03d3c500f [2018-12-09 06:14:21,213 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 06:14:21,222 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 06:14:21,225 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 06:14:21,226 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 06:14:21,227 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 06:14:21,227 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6faa0320-2b1d-4784-87b6-871c53074fcc/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1092d_true-unreach-call.c [2018-12-09 06:14:21,268 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6faa0320-2b1d-4784-87b6-871c53074fcc/bin-2019/utaipan/data/fe3f4bf2e/3bfb521bc07a45a7b6a1463b0bb87f7e/FLAG1526cced1 [2018-12-09 06:14:21,720 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 06:14:21,720 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6faa0320-2b1d-4784-87b6-871c53074fcc/sv-benchmarks/c/float-newlib/float_req_bl_1092d_true-unreach-call.c [2018-12-09 06:14:21,725 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6faa0320-2b1d-4784-87b6-871c53074fcc/bin-2019/utaipan/data/fe3f4bf2e/3bfb521bc07a45a7b6a1463b0bb87f7e/FLAG1526cced1 [2018-12-09 06:14:21,733 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6faa0320-2b1d-4784-87b6-871c53074fcc/bin-2019/utaipan/data/fe3f4bf2e/3bfb521bc07a45a7b6a1463b0bb87f7e [2018-12-09 06:14:21,735 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 06:14:21,736 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 06:14:21,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 06:14:21,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 06:14:21,739 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 06:14:21,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:14:21" (1/1) ... [2018-12-09 06:14:21,742 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@284ba15b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:14:21, skipping insertion in model container [2018-12-09 06:14:21,742 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:14:21" (1/1) ... [2018-12-09 06:14:21,746 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 06:14:21,758 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 06:14:21,864 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 06:14:21,867 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 06:14:21,883 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 06:14:21,897 INFO L195 MainTranslator]: Completed translation [2018-12-09 06:14:21,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:14:21 WrapperNode [2018-12-09 06:14:21,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 06:14:21,898 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 06:14:21,898 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 06:14:21,898 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 06:14:21,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:14:21" (1/1) ... [2018-12-09 06:14:21,909 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:14:21" (1/1) ... [2018-12-09 06:14:21,913 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 06:14:21,914 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 06:14:21,914 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 06:14:21,914 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 06:14:21,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:14:21" (1/1) ... [2018-12-09 06:14:21,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:14:21" (1/1) ... [2018-12-09 06:14:21,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:14:21" (1/1) ... [2018-12-09 06:14:21,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:14:21" (1/1) ... [2018-12-09 06:14:21,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:14:21" (1/1) ... [2018-12-09 06:14:21,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:14:21" (1/1) ... [2018-12-09 06:14:21,966 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:14:21" (1/1) ... [2018-12-09 06:14:21,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 06:14:21,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 06:14:21,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 06:14:21,968 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 06:14:21,969 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:14:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6faa0320-2b1d-4784-87b6-871c53074fcc/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 [2018-12-09 06:14:22,001 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-12-09 06:14:22,001 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-12-09 06:14:22,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 06:14:22,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 06:14:22,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 06:14:22,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 06:14:22,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 06:14:22,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 06:14:22,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-09 06:14:22,002 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 06:14:22,002 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 06:14:22,002 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-12-09 06:14:22,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-12-09 06:14:22,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-09 06:14:22,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 06:14:22,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 06:14:22,091 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 06:14:22,321 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 06:14:22,407 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 06:14:22,407 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-09 06:14:22,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:14:22 BoogieIcfgContainer [2018-12-09 06:14:22,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 06:14:22,408 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 06:14:22,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 06:14:22,410 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 06:14:22,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:14:21" (1/3) ... [2018-12-09 06:14:22,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4662b1a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:14:22, skipping insertion in model container [2018-12-09 06:14:22,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:14:21" (2/3) ... [2018-12-09 06:14:22,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4662b1a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:14:22, skipping insertion in model container [2018-12-09 06:14:22,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:14:22" (3/3) ... [2018-12-09 06:14:22,411 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092d_true-unreach-call.c [2018-12-09 06:14:22,417 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 06:14:22,421 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 06:14:22,429 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 06:14:22,446 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 06:14:22,446 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 06:14:22,446 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 06:14:22,446 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 06:14:22,446 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 06:14:22,446 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 06:14:22,447 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 06:14:22,447 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 06:14:22,447 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 06:14:22,456 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states. [2018-12-09 06:14:22,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 06:14:22,459 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 06:14:22,460 INFO L402 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] [2018-12-09 06:14:22,461 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 06:14:22,464 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 06:14:22,464 INFO L82 PathProgramCache]: Analyzing trace with hash -731890553, now seen corresponding path program 1 times [2018-12-09 06:14:22,466 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 06:14:22,467 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6faa0320-2b1d-4784-87b6-871c53074fcc/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 [2018-12-09 06:14:22,470 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 06:14:22,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 06:14:22,520 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 06:14:22,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 06:14:22,531 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 06:14:22,539 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 06:14:22,539 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 06:14:22,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 06:14:22,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 06:14:22,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 06:14:22,550 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 2 states. [2018-12-09 06:14:22,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 06:14:22,563 INFO L93 Difference]: Finished difference Result 74 states and 105 transitions. [2018-12-09 06:14:22,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 06:14:22,564 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-12-09 06:14:22,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 06:14:22,570 INFO L225 Difference]: With dead ends: 74 [2018-12-09 06:14:22,570 INFO L226 Difference]: Without dead ends: 37 [2018-12-09 06:14:22,572 INFO L631 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 [2018-12-09 06:14:22,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-12-09 06:14:22,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-12-09 06:14:22,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-09 06:14:22,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2018-12-09 06:14:22,594 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 23 [2018-12-09 06:14:22,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 06:14:22,594 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2018-12-09 06:14:22,594 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 06:14:22,595 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2018-12-09 06:14:22,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 06:14:22,595 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 06:14:22,595 INFO L402 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] [2018-12-09 06:14:22,595 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 06:14:22,596 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 06:14:22,596 INFO L82 PathProgramCache]: Analyzing trace with hash -1388678818, now seen corresponding path program 1 times [2018-12-09 06:14:22,596 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 06:14:22,596 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6faa0320-2b1d-4784-87b6-871c53074fcc/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-09 06:14:22,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 06:14:22,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 06:14:22,647 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 06:14:23,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 06:14:23,296 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 06:14:23,306 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 06:14:23,307 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-12-09 06:14:23,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 06:14:23,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 06:14:23,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-12-09 06:14:23,308 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand 11 states. [2018-12-09 06:14:23,718 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-12-09 06:14:25,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 06:14:25,046 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2018-12-09 06:14:25,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-09 06:14:25,046 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2018-12-09 06:14:25,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 06:14:25,048 INFO L225 Difference]: With dead ends: 46 [2018-12-09 06:14:25,048 INFO L226 Difference]: Without dead ends: 39 [2018-12-09 06:14:25,049 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-12-09 06:14:25,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-12-09 06:14:25,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2018-12-09 06:14:25,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-09 06:14:25,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2018-12-09 06:14:25,054 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 25 [2018-12-09 06:14:25,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 06:14:25,054 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2018-12-09 06:14:25,054 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 06:14:25,054 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2018-12-09 06:14:25,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 06:14:25,055 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 06:14:25,055 INFO L402 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] [2018-12-09 06:14:25,055 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 06:14:25,056 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 06:14:25,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1682081825, now seen corresponding path program 1 times [2018-12-09 06:14:25,056 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 06:14:25,056 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6faa0320-2b1d-4784-87b6-871c53074fcc/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 [2018-12-09 06:14:25,059 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 06:14:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 06:14:25,090 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 06:14:25,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 06:14:25,143 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 06:14:25,154 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 06:14:25,154 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 06:14:25,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 06:14:25,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 06:14:25,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 06:14:25,154 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand 7 states. [2018-12-09 06:14:25,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 06:14:25,701 INFO L93 Difference]: Finished difference Result 59 states and 65 transitions. [2018-12-09 06:14:25,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 06:14:25,702 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-12-09 06:14:25,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 06:14:25,703 INFO L225 Difference]: With dead ends: 59 [2018-12-09 06:14:25,703 INFO L226 Difference]: Without dead ends: 42 [2018-12-09 06:14:25,703 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-09 06:14:25,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-09 06:14:25,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 36. [2018-12-09 06:14:25,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-12-09 06:14:25,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2018-12-09 06:14:25,706 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 25 [2018-12-09 06:14:25,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 06:14:25,706 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2018-12-09 06:14:25,706 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 06:14:25,707 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2018-12-09 06:14:25,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 06:14:25,707 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 06:14:25,707 INFO L402 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] [2018-12-09 06:14:25,707 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 06:14:25,707 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 06:14:25,707 INFO L82 PathProgramCache]: Analyzing trace with hash -2087457071, now seen corresponding path program 1 times [2018-12-09 06:14:25,708 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 06:14:25,708 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6faa0320-2b1d-4784-87b6-871c53074fcc/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 [2018-12-09 06:14:25,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 06:14:25,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 06:14:25,742 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 06:14:25,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 06:14:25,808 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 06:14:25,816 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 06:14:25,816 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 06:14:25,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 06:14:25,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 06:14:25,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 06:14:25,816 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand 7 states. [2018-12-09 06:14:26,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 06:14:26,333 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2018-12-09 06:14:26,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 06:14:26,334 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-12-09 06:14:26,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 06:14:26,335 INFO L225 Difference]: With dead ends: 42 [2018-12-09 06:14:26,335 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 06:14:26,335 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-12-09 06:14:26,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 06:14:26,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 06:14:26,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 06:14:26,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 06:14:26,335 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-12-09 06:14:26,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 06:14:26,336 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 06:14:26,336 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 06:14:26,336 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 06:14:26,336 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 06:14:26,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 06:14:26,386 INFO L448 ceAbstractionStarter]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2018-12-09 06:14:26,386 INFO L444 ceAbstractionStarter]: At program point L59-2(lines 59 63) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-12-09 06:14:26,387 INFO L448 ceAbstractionStarter]: For program point L59-3(lines 59 63) no Hoare annotation was computed. [2018-12-09 06:14:26,387 INFO L451 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 57 66) the Hoare annotation is: true [2018-12-09 06:14:26,387 INFO L448 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 57 66) no Hoare annotation was computed. [2018-12-09 06:14:26,387 INFO L448 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 57 66) no Hoare annotation was computed. [2018-12-09 06:14:26,387 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 06:14:26,387 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 06:14:26,387 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 06:14:26,387 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 06:14:26,387 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 06:14:26,387 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 06:14:26,387 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 06:14:26,387 INFO L448 ceAbstractionStarter]: For program point L81(line 81) no Hoare annotation was computed. [2018-12-09 06:14:26,387 INFO L444 ceAbstractionStarter]: At program point L80(line 80) 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))) [2018-12-09 06:14:26,387 INFO L448 ceAbstractionStarter]: For program point L80-1(lines 80 83) no Hoare annotation was computed. [2018-12-09 06:14:26,388 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 68 86) the Hoare annotation is: true [2018-12-09 06:14:26,388 INFO L444 ceAbstractionStarter]: At program point L77(line 77) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) [2018-12-09 06:14:26,388 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 68 86) no Hoare annotation was computed. [2018-12-09 06:14:26,388 INFO L448 ceAbstractionStarter]: For program point L77-1(line 77) no Hoare annotation was computed. [2018-12-09 06:14:26,388 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 68 86) no Hoare annotation was computed. [2018-12-09 06:14:26,388 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 81) no Hoare annotation was computed. [2018-12-09 06:14:26,388 INFO L448 ceAbstractionStarter]: For program point L23(lines 23 47) no Hoare annotation was computed. [2018-12-09 06:14:26,388 INFO L448 ceAbstractionStarter]: For program point L48(lines 48 52) no Hoare annotation was computed. [2018-12-09 06:14:26,388 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 13 54) no Hoare annotation was computed. [2018-12-09 06:14:26,388 INFO L448 ceAbstractionStarter]: For program point L48-2(lines 48 52) no Hoare annotation was computed. [2018-12-09 06:14:26,388 INFO L448 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2018-12-09 06:14:26,388 INFO L451 ceAbstractionStarter]: At program point ceil_floatENTRY(lines 13 54) the Hoare annotation is: true [2018-12-09 06:14:26,388 INFO L448 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-12-09 06:14:26,389 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 41) no Hoare annotation was computed. [2018-12-09 06:14:26,389 INFO L448 ceAbstractionStarter]: For program point ceil_floatFINAL(lines 13 54) no Hoare annotation was computed. [2018-12-09 06:14:26,389 INFO L448 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-12-09 06:14:26,389 INFO L444 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: (= |ceil_float_#in~x| ceil_float_~x) [2018-12-09 06:14:26,389 INFO L448 ceAbstractionStarter]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2018-12-09 06:14:26,389 INFO L448 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-12-09 06:14:26,389 INFO L448 ceAbstractionStarter]: For program point ceil_floatEXIT(lines 13 54) no Hoare annotation was computed. [2018-12-09 06:14:26,389 INFO L448 ceAbstractionStarter]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2018-12-09 06:14:26,389 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-12-09 06:14:26,389 INFO L448 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-12-09 06:14:26,389 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2018-12-09 06:14:26,389 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 46) no Hoare annotation was computed. [2018-12-09 06:14:26,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:14:26 BoogieIcfgContainer [2018-12-09 06:14:26,397 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 06:14:26,397 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 06:14:26,397 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 06:14:26,397 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 06:14:26,398 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:14:22" (3/4) ... [2018-12-09 06:14:26,400 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 06:14:26,404 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-12-09 06:14:26,404 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 06:14:26,404 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 06:14:26,405 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_float [2018-12-09 06:14:26,408 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-12-09 06:14:26,408 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-12-09 06:14:26,408 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 06:14:26,424 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-09 06:14:26,424 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-09 06:14:26,437 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6faa0320-2b1d-4784-87b6-871c53074fcc/bin-2019/utaipan/witness.graphml [2018-12-09 06:14:26,437 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 06:14:26,437 INFO L168 Benchmark]: Toolchain (without parser) took 4702.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 944.7 MB in the beginning and 906.2 MB in the end (delta: 38.5 MB). Peak memory consumption was 162.3 MB. Max. memory is 11.5 GB. [2018-12-09 06:14:26,438 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 06:14:26,438 INFO L168 Benchmark]: CACSL2BoogieTranslator took 161.15 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 934.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 06:14:26,438 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.62 ms. Allocated memory is still 1.0 GB. Free memory was 934.0 MB in the beginning and 928.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 06:14:26,439 INFO L168 Benchmark]: Boogie Preprocessor took 53.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -182.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-12-09 06:14:26,439 INFO L168 Benchmark]: RCFGBuilder took 439.67 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2018-12-09 06:14:26,439 INFO L168 Benchmark]: TraceAbstraction took 3989.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 913.0 MB in the end (delta: 173.3 MB). Peak memory consumption was 173.3 MB. Max. memory is 11.5 GB. [2018-12-09 06:14:26,439 INFO L168 Benchmark]: Witness Printer took 39.73 ms. Allocated memory is still 1.2 GB. Free memory was 913.0 MB in the beginning and 906.2 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-09 06:14:26,441 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 161.15 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 934.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.62 ms. Allocated memory is still 1.0 GB. Free memory was 934.0 MB in the beginning and 928.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -182.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 439.67 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: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3989.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 913.0 MB in the end (delta: 173.3 MB). Peak memory consumption was 173.3 MB. Max. memory is 11.5 GB. * Witness Printer took 39.73 ms. Allocated memory is still 1.2 GB. Free memory was 913.0 MB in the beginning and 906.2 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 81]: 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, 3.9s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 2.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 119 SDtfs, 163 SDslu, 393 SDs, 0 SdLazy, 262 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.4s 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, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 95 ConstructedInterpolants, 11 QuantifiedInterpolants, 11478 SizeOfPredicates, 14 NumberOfNonLiveVariables, 284 ConjunctsInSsa, 33 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...