./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1051_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_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/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 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 ....................................................................................................................................................................................................................................................................................................................... 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_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/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 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 ............................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 17:36:15,428 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 17:36:15,429 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 17:36:15,437 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 17:36:15,437 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 17:36:15,437 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 17:36:15,438 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 17:36:15,439 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 17:36:15,440 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 17:36:15,441 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 17:36:15,441 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 17:36:15,441 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 17:36:15,442 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 17:36:15,443 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 17:36:15,443 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 17:36:15,444 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 17:36:15,444 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 17:36:15,446 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 17:36:15,447 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 17:36:15,448 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 17:36:15,448 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 17:36:15,449 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 17:36:15,451 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 17:36:15,451 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 17:36:15,451 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 17:36:15,452 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 17:36:15,452 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 17:36:15,453 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 17:36:15,454 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 17:36:15,454 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 17:36:15,454 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 17:36:15,455 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 17:36:15,455 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 17:36:15,455 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 17:36:15,456 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 17:36:15,456 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 17:36:15,456 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 17:36:15,466 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 17:36:15,466 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 17:36:15,467 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 17:36:15,467 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 17:36:15,467 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 17:36:15,467 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 17:36:15,467 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 17:36:15,468 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 17:36:15,468 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 17:36:15,468 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 17:36:15,468 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 17:36:15,468 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 17:36:15,468 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 17:36:15,468 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 17:36:15,469 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 17:36:15,469 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 17:36:15,469 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 17:36:15,469 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 17:36:15,469 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 17:36:15,469 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 17:36:15,469 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 17:36:15,469 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 17:36:15,470 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 17:36:15,470 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 17:36:15,470 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 17:36:15,470 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 17:36:15,470 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 17:36:15,470 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 17:36:15,470 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 17:36:15,470 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 17:36:15,470 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 17:36:15,470 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 17:36:15,471 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 17:36:15,471 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 17:36:15,471 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 17:36:15,471 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 17:36:15,471 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_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/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 -> 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 [2018-12-09 17:36:15,494 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 17:36:15,503 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 17:36:15,505 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 17:36:15,506 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 17:36:15,506 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 17:36:15,507 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c [2018-12-09 17:36:15,551 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/bin-2019/utaipan/data/d843e5b23/35f18304baa94f41882c4c1df767286e/FLAGdc744ef70 [2018-12-09 17:36:15,873 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 17:36:15,873 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c [2018-12-09 17:36:15,877 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/bin-2019/utaipan/data/d843e5b23/35f18304baa94f41882c4c1df767286e/FLAGdc744ef70 [2018-12-09 17:36:16,282 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/bin-2019/utaipan/data/d843e5b23/35f18304baa94f41882c4c1df767286e [2018-12-09 17:36:16,283 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 17:36:16,284 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 17:36:16,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 17:36:16,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 17:36:16,287 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 17:36:16,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:36:16" (1/1) ... [2018-12-09 17:36:16,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e47b5ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:36:16, skipping insertion in model container [2018-12-09 17:36:16,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:36:16" (1/1) ... [2018-12-09 17:36:16,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 17:36:16,303 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 17:36:16,394 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 17:36:16,396 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 17:36:16,410 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 17:36:16,422 INFO L195 MainTranslator]: Completed translation [2018-12-09 17:36:16,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:36:16 WrapperNode [2018-12-09 17:36:16,422 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 17:36:16,423 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 17:36:16,423 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 17:36:16,423 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 17:36:16,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:36:16" (1/1) ... [2018-12-09 17:36:16,433 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:36:16" (1/1) ... [2018-12-09 17:36:16,437 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 17:36:16,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 17:36:16,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 17:36:16,438 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 17:36:16,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:36:16" (1/1) ... [2018-12-09 17:36:16,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:36:16" (1/1) ... [2018-12-09 17:36:16,475 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:36:16" (1/1) ... [2018-12-09 17:36:16,475 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:36:16" (1/1) ... [2018-12-09 17:36:16,481 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:36:16" (1/1) ... [2018-12-09 17:36:16,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:36:16" (1/1) ... [2018-12-09 17:36:16,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:36:16" (1/1) ... [2018-12-09 17:36:16,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 17:36:16,488 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 17:36:16,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 17:36:16,489 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 17:36:16,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:36:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/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 17:36:16,519 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 17:36:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 17:36:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-09 17:36:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-09 17:36:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 17:36:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 17:36:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 17:36:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 17:36:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 17:36:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 17:36:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-12-09 17:36:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-12-09 17:36:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 17:36:16,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 17:36:16,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 17:36:16,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 17:36:16,659 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 17:36:16,659 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-09 17:36:16,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:36:16 BoogieIcfgContainer [2018-12-09 17:36:16,660 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 17:36:16,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 17:36:16,660 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 17:36:16,662 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 17:36:16,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 05:36:16" (1/3) ... [2018-12-09 17:36:16,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65bb4a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:36:16, skipping insertion in model container [2018-12-09 17:36:16,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:36:16" (2/3) ... [2018-12-09 17:36:16,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65bb4a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:36:16, skipping insertion in model container [2018-12-09 17:36:16,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:36:16" (3/3) ... [2018-12-09 17:36:16,666 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1051_true-unreach-call.c [2018-12-09 17:36:16,674 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 17:36:16,680 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 17:36:16,694 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 17:36:16,716 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 17:36:16,716 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 17:36:16,716 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 17:36:16,716 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 17:36:16,716 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 17:36:16,716 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 17:36:16,717 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 17:36:16,717 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 17:36:16,728 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2018-12-09 17:36:16,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 17:36:16,731 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:36:16,732 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] [2018-12-09 17:36:16,733 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:36:16,736 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:36:16,736 INFO L82 PathProgramCache]: Analyzing trace with hash -971358766, now seen corresponding path program 1 times [2018-12-09 17:36:16,737 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:36:16,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:36:16,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:36:16,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:36:16,765 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:36:16,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:36:16,812 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 17:36:16,813 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:36:16,813 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 17:36:16,814 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:36:16,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 17:36:16,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 17:36:16,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 17:36:16,825 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2018-12-09 17:36:16,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:36:16,836 INFO L93 Difference]: Finished difference Result 70 states and 96 transitions. [2018-12-09 17:36:16,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 17:36:16,837 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-12-09 17:36:16,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:36:16,843 INFO L225 Difference]: With dead ends: 70 [2018-12-09 17:36:16,844 INFO L226 Difference]: Without dead ends: 35 [2018-12-09 17:36:16,845 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 17:36:16,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-12-09 17:36:16,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-12-09 17:36:16,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-12-09 17:36:16,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2018-12-09 17:36:16,875 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 43 transitions. Word has length 22 [2018-12-09 17:36:16,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:36:16,876 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 43 transitions. [2018-12-09 17:36:16,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 17:36:16,876 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2018-12-09 17:36:16,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 17:36:16,876 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:36:16,876 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 17:36:16,876 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:36:16,877 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:36:16,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1352261581, now seen corresponding path program 1 times [2018-12-09 17:36:16,877 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:36:16,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:36:16,877 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:36:16,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:36:16,878 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:36:16,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 17:36:16,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 17:36:16,934 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 17:36:16,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 05:36:16 BoogieIcfgContainer [2018-12-09 17:36:16,950 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 17:36:16,950 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 17:36:16,951 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 17:36:16,951 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 17:36:16,951 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:36:16" (3/4) ... [2018-12-09 17:36:16,953 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 17:36:16,953 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 17:36:16,954 INFO L168 Benchmark]: Toolchain (without parser) took 670.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 83.9 MB). Free memory was 949.7 MB in the beginning and 1.0 GB in the end (delta: -74.9 MB). Peak memory consumption was 9.0 MB. Max. memory is 11.5 GB. [2018-12-09 17:36:16,954 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 17:36:16,955 INFO L168 Benchmark]: CACSL2BoogieTranslator took 137.88 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 17:36:16,955 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.76 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 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 17:36:16,955 INFO L168 Benchmark]: Boogie Preprocessor took 50.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 83.9 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -145.6 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-12-09 17:36:16,956 INFO L168 Benchmark]: RCFGBuilder took 171.49 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: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-12-09 17:36:16,956 INFO L168 Benchmark]: TraceAbstraction took 290.05 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: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. [2018-12-09 17:36:16,956 INFO L168 Benchmark]: Witness Printer took 2.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 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 17:36:16,958 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 137.88 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 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 14.76 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 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 50.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 83.9 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -145.6 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 171.49 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: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 290.05 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: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. * Witness Printer took 2.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 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: 71]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 58, overapproximation of someBinaryArithmeticFLOAToperation at line 45, overapproximation of bitwiseAnd at line 22. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; VAL [\old(huge_floor)=6442450946, huge_floor=1000000000000000000000000000000] [L66] float x = 0.0f / 0.0f; VAL [huge_floor=1000000000000000000000000000000] [L67] CALL, EXPR floor_float(x) VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000] [L15] __int32_t i0, j0; [L16] __uint32_t i, ix; VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000, x=6442450952] [L18] ieee_float_shape_type gf_u; [L19] gf_u.value = (x) [L20] EXPR gf_u.word [L20] (i0) = gf_u.word [L22] ix = (i0 & 0x7fffffff) [L23] j0 = (ix >> 23) - 0x7f VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000, i=-36028794871480321, i0=-2147483648, j0=128, x=6442450952] [L24] COND FALSE !(j0 < 23) VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000, i=-36028794871480321, i0=-2147483648, j0=128, x=6442450952] [L44] COND TRUE !((ix) < 0x7f800000L) [L45] return x + x; VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000, i=-36028794871480321, i0=-2147483648, j0=128, x=6442450952] [L67] RET, EXPR floor_float(x) VAL [floor_float(x)=6442450949, huge_floor=1000000000000000000000000000000, x=6442450952] [L67] float res = floor_float(x); [L70] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450949, huge_floor=1000000000000000000000000000000] [L58] return x != x; VAL [\old(x)=6442450949, \result=0, huge_floor=1000000000000000000000000000000, x=6442450949] [L70] RET, EXPR isnan_float(res) VAL [huge_floor=1000000000000000000000000000000, isnan_float(res)=0, res=6442450949, x=6442450952] [L70] COND TRUE !isnan_float(res) [L71] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000, res=6442450949, x=6442450952] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 39 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 47 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=39occurred 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, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 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 17:36:18,302 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 17:36:18,303 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 17:36:18,309 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 17:36:18,310 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 17:36:18,310 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 17:36:18,311 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 17:36:18,312 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 17:36:18,313 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 17:36:18,314 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 17:36:18,315 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 17:36:18,315 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 17:36:18,315 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 17:36:18,316 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 17:36:18,317 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 17:36:18,317 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 17:36:18,318 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 17:36:18,319 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 17:36:18,320 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 17:36:18,322 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 17:36:18,322 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 17:36:18,323 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 17:36:18,325 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 17:36:18,325 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 17:36:18,325 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 17:36:18,326 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 17:36:18,326 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 17:36:18,327 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 17:36:18,327 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 17:36:18,328 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 17:36:18,328 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 17:36:18,329 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 17:36:18,329 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 17:36:18,329 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 17:36:18,330 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 17:36:18,330 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 17:36:18,330 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 17:36:18,341 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 17:36:18,341 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 17:36:18,342 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 17:36:18,342 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 17:36:18,342 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 17:36:18,342 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 17:36:18,342 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 17:36:18,342 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 17:36:18,343 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 17:36:18,343 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 17:36:18,343 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 17:36:18,343 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 17:36:18,344 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 17:36:18,344 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 17:36:18,344 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 17:36:18,344 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 17:36:18,344 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 17:36:18,344 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 17:36:18,344 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 17:36:18,344 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 17:36:18,345 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 17:36:18,345 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 17:36:18,345 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 17:36:18,345 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 17:36:18,345 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 17:36:18,345 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 17:36:18,345 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 17:36:18,346 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 17:36:18,346 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 17:36:18,346 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 17:36:18,346 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 17:36:18,346 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 17:36:18,346 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 17:36:18,346 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 17:36:18,346 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 17:36:18,347 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_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/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 -> 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 [2018-12-09 17:36:18,370 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 17:36:18,377 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 17:36:18,379 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 17:36:18,380 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 17:36:18,380 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 17:36:18,381 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c [2018-12-09 17:36:18,415 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/bin-2019/utaipan/data/c0e9076cf/a8def5b058784b0abbde05a86f4e11a8/FLAG22009d075 [2018-12-09 17:36:18,796 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 17:36:18,796 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c [2018-12-09 17:36:18,800 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/bin-2019/utaipan/data/c0e9076cf/a8def5b058784b0abbde05a86f4e11a8/FLAG22009d075 [2018-12-09 17:36:18,808 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/bin-2019/utaipan/data/c0e9076cf/a8def5b058784b0abbde05a86f4e11a8 [2018-12-09 17:36:18,810 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 17:36:18,811 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 17:36:18,812 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 17:36:18,812 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 17:36:18,814 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 17:36:18,814 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:36:18" (1/1) ... [2018-12-09 17:36:18,816 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 05:36:18, skipping insertion in model container [2018-12-09 17:36:18,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:36:18" (1/1) ... [2018-12-09 17:36:18,820 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 17:36:18,831 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 17:36:18,924 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 17:36:18,927 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 17:36:18,943 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 17:36:18,957 INFO L195 MainTranslator]: Completed translation [2018-12-09 17:36:18,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:36:18 WrapperNode [2018-12-09 17:36:18,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 17:36:18,958 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 17:36:18,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 17:36:18,959 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 17:36:18,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:36:18" (1/1) ... [2018-12-09 17:36:18,970 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:36:18" (1/1) ... [2018-12-09 17:36:18,974 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 17:36:18,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 17:36:18,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 17:36:18,974 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 17:36:18,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:36:18" (1/1) ... [2018-12-09 17:36:18,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:36:18" (1/1) ... [2018-12-09 17:36:18,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:36:18" (1/1) ... [2018-12-09 17:36:18,982 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:36:18" (1/1) ... [2018-12-09 17:36:18,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:36:18" (1/1) ... [2018-12-09 17:36:19,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:36:18" (1/1) ... [2018-12-09 17:36:19,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:36:18" (1/1) ... [2018-12-09 17:36:19,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 17:36:19,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 17:36:19,024 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 17:36:19,025 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 17:36:19,025 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:36:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/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 17:36:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 17:36:19,054 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 17:36:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-09 17:36:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-09 17:36:19,054 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-09 17:36:19,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 17:36:19,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 17:36:19,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 17:36:19,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 17:36:19,055 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-12-09 17:36:19,055 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-12-09 17:36:19,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 17:36:19,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 17:36:19,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-09 17:36:19,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 17:36:19,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 17:36:19,169 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:36:19,455 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 17:36:19,455 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-09 17:36:19,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:36:19 BoogieIcfgContainer [2018-12-09 17:36:19,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 17:36:19,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 17:36:19,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 17:36:19,457 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 17:36:19,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 05:36:18" (1/3) ... [2018-12-09 17:36:19,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a15997 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:36:19, skipping insertion in model container [2018-12-09 17:36:19,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:36:18" (2/3) ... [2018-12-09 17:36:19,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a15997 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:36:19, skipping insertion in model container [2018-12-09 17:36:19,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:36:19" (3/3) ... [2018-12-09 17:36:19,459 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1051_true-unreach-call.c [2018-12-09 17:36:19,465 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 17:36:19,469 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 17:36:19,477 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 17:36:19,494 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 17:36:19,494 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 17:36:19,494 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 17:36:19,494 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 17:36:19,494 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 17:36:19,495 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 17:36:19,495 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 17:36:19,495 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 17:36:19,495 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 17:36:19,504 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-12-09 17:36:19,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 17:36:19,508 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:36:19,508 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] [2018-12-09 17:36:19,510 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:36:19,512 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:36:19,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1109789349, now seen corresponding path program 1 times [2018-12-09 17:36:19,515 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 17:36:19,515 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/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 17:36:19,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:36:19,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:36:19,567 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 17:36:19,577 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 17:36:19,577 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 17:36:19,585 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:36:19,585 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 17:36:19,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 17:36:19,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 17:36:19,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 17:36:19,595 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2018-12-09 17:36:19,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:36:19,607 INFO L93 Difference]: Finished difference Result 68 states and 94 transitions. [2018-12-09 17:36:19,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 17:36:19,608 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-12-09 17:36:19,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:36:19,614 INFO L225 Difference]: With dead ends: 68 [2018-12-09 17:36:19,614 INFO L226 Difference]: Without dead ends: 34 [2018-12-09 17:36:19,616 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 17:36:19,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-12-09 17:36:19,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-12-09 17:36:19,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-09 17:36:19,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2018-12-09 17:36:19,638 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 21 [2018-12-09 17:36:19,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:36:19,638 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2018-12-09 17:36:19,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 17:36:19,638 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2018-12-09 17:36:19,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 17:36:19,639 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:36:19,639 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] [2018-12-09 17:36:19,639 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:36:19,639 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:36:19,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1743788968, now seen corresponding path program 1 times [2018-12-09 17:36:19,640 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 17:36:19,640 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/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 17:36:19,643 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:36:19,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:36:19,684 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 17:36:20,051 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 17:36:20,051 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 17:36:20,058 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:36:20,058 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-09 17:36:20,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 17:36:20,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 17:36:20,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-09 17:36:20,060 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand 9 states. [2018-12-09 17:36:20,427 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-12-09 17:36:21,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:36:21,369 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2018-12-09 17:36:21,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 17:36:21,369 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-12-09 17:36:21,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:36:21,371 INFO L225 Difference]: With dead ends: 43 [2018-12-09 17:36:21,371 INFO L226 Difference]: Without dead ends: 36 [2018-12-09 17:36:21,372 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-12-09 17:36:21,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-12-09 17:36:21,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2018-12-09 17:36:21,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-09 17:36:21,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2018-12-09 17:36:21,379 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 22 [2018-12-09 17:36:21,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:36:21,380 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2018-12-09 17:36:21,380 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 17:36:21,380 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2018-12-09 17:36:21,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 17:36:21,381 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:36:21,381 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] [2018-12-09 17:36:21,381 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:36:21,381 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:36:21,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1547275463, now seen corresponding path program 1 times [2018-12-09 17:36:21,382 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 17:36:21,382 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/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 17:36:21,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:36:21,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:36:21,410 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 17:36:21,484 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 17:36:21,485 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 17:36:21,492 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:36:21,492 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-09 17:36:21,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 17:36:21,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 17:36:21,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-09 17:36:21,493 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand 9 states. [2018-12-09 17:36:21,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:36:21,891 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2018-12-09 17:36:21,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 17:36:21,891 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-12-09 17:36:21,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:36:21,892 INFO L225 Difference]: With dead ends: 41 [2018-12-09 17:36:21,892 INFO L226 Difference]: Without dead ends: 33 [2018-12-09 17:36:21,892 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-12-09 17:36:21,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-12-09 17:36:21,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-12-09 17:36:21,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-12-09 17:36:21,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2018-12-09 17:36:21,895 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 22 [2018-12-09 17:36:21,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:36:21,895 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2018-12-09 17:36:21,895 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 17:36:21,895 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2018-12-09 17:36:21,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-09 17:36:21,896 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:36:21,896 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 17:36:21,896 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:36:21,896 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:36:21,896 INFO L82 PathProgramCache]: Analyzing trace with hash -136677178, now seen corresponding path program 1 times [2018-12-09 17:36:21,897 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 17:36:21,897 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/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 17:36:21,900 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:36:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:36:21,945 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 17:36:22,026 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 17:36:22,026 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 17:36:22,037 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:36:22,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 17:36:22,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 17:36:22,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 17:36:22,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 17:36:22,038 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 7 states. [2018-12-09 17:36:22,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:36:22,523 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2018-12-09 17:36:22,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 17:36:22,524 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-12-09 17:36:22,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:36:22,524 INFO L225 Difference]: With dead ends: 39 [2018-12-09 17:36:22,524 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 17:36:22,525 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-12-09 17:36:22,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 17:36:22,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 17:36:22,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 17:36:22,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 17:36:22,525 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-12-09 17:36:22,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:36:22,525 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 17:36:22,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 17:36:22,526 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 17:36:22,526 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 17:36:22,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 17:36:22,585 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 58) no Hoare annotation was computed. [2018-12-09 17:36:22,586 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 58) the Hoare annotation is: true [2018-12-09 17:36:22,586 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 58) no Hoare annotation was computed. [2018-12-09 17:36:22,586 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 17:36:22,586 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 17:36:22,586 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 17:36:22,586 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 31) no Hoare annotation was computed. [2018-12-09 17:36:22,586 INFO L448 ceAbstractionStarter]: For program point L44(lines 44 47) no Hoare annotation was computed. [2018-12-09 17:36:22,586 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 48) no Hoare annotation was computed. [2018-12-09 17:36:22,586 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 53) no Hoare annotation was computed. [2018-12-09 17:36:22,586 INFO L448 ceAbstractionStarter]: For program point L49-1(lines 14 55) no Hoare annotation was computed. [2018-12-09 17:36:22,587 INFO L448 ceAbstractionStarter]: For program point L49-2(lines 49 53) no Hoare annotation was computed. [2018-12-09 17:36:22,587 INFO L448 ceAbstractionStarter]: For program point L37(lines 37 41) no Hoare annotation was computed. [2018-12-09 17:36:22,587 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 31) no Hoare annotation was computed. [2018-12-09 17:36:22,587 INFO L448 ceAbstractionStarter]: For program point floor_floatEXIT(lines 14 55) no Hoare annotation was computed. [2018-12-09 17:36:22,587 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 42) no Hoare annotation was computed. [2018-12-09 17:36:22,587 INFO L448 ceAbstractionStarter]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2018-12-09 17:36:22,587 INFO L444 ceAbstractionStarter]: At program point L17-2(lines 17 21) the Hoare annotation is: (= |floor_float_#in~x| floor_float_~x) [2018-12-09 17:36:22,587 INFO L448 ceAbstractionStarter]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2018-12-09 17:36:22,587 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2018-12-09 17:36:22,588 INFO L448 ceAbstractionStarter]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2018-12-09 17:36:22,588 INFO L448 ceAbstractionStarter]: For program point floor_floatFINAL(lines 14 55) no Hoare annotation was computed. [2018-12-09 17:36:22,588 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 32) no Hoare annotation was computed. [2018-12-09 17:36:22,588 INFO L451 ceAbstractionStarter]: At program point floor_floatENTRY(lines 14 55) the Hoare annotation is: true [2018-12-09 17:36:22,588 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 36) no Hoare annotation was computed. [2018-12-09 17:36:22,588 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 17:36:22,588 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 17:36:22,588 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 17:36:22,588 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 17:36:22,588 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 60 76) the Hoare annotation is: true [2018-12-09 17:36:22,588 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 60 76) no Hoare annotation was computed. [2018-12-09 17:36:22,588 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 60 76) no Hoare annotation was computed. [2018-12-09 17:36:22,588 INFO L448 ceAbstractionStarter]: For program point L71(line 71) no Hoare annotation was computed. [2018-12-09 17:36:22,589 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 71) no Hoare annotation was computed. [2018-12-09 17:36:22,589 INFO L444 ceAbstractionStarter]: At program point L70(line 70) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~res~0 (fp.add roundNearestTiesToEven .cse0 .cse0)) (= main_~x~0 .cse0))) [2018-12-09 17:36:22,589 INFO L448 ceAbstractionStarter]: For program point L70-1(lines 70 73) no Hoare annotation was computed. [2018-12-09 17:36:22,589 INFO L444 ceAbstractionStarter]: At program point L67(line 67) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2018-12-09 17:36:22,589 INFO L448 ceAbstractionStarter]: For program point L67-1(line 67) no Hoare annotation was computed. [2018-12-09 17:36:22,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 05:36:22 BoogieIcfgContainer [2018-12-09 17:36:22,597 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 17:36:22,597 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 17:36:22,597 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 17:36:22,597 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 17:36:22,598 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:36:19" (3/4) ... [2018-12-09 17:36:22,600 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 17:36:22,604 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-12-09 17:36:22,604 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 17:36:22,604 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_float [2018-12-09 17:36:22,604 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 17:36:22,608 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-12-09 17:36:22,608 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-09 17:36:22,608 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 17:36:22,627 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-09 17:36:22,643 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7ba26c9d-8588-4cc2-8d52-1462f0d904ec/bin-2019/utaipan/witness.graphml [2018-12-09 17:36:22,643 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 17:36:22,644 INFO L168 Benchmark]: Toolchain (without parser) took 3833.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 944.7 MB in the beginning and 942.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 140.1 MB. Max. memory is 11.5 GB. [2018-12-09 17:36:22,645 INFO L168 Benchmark]: CDTParser took 0.13 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 17:36:22,645 INFO L168 Benchmark]: CACSL2BoogieTranslator took 146.59 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 932.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-12-09 17:36:22,645 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.70 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 17:36:22,646 INFO L168 Benchmark]: Boogie Preprocessor took 49.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -198.4 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-12-09 17:36:22,646 INFO L168 Benchmark]: RCFGBuilder took 430.78 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: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-12-09 17:36:22,646 INFO L168 Benchmark]: TraceAbstraction took 3141.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 949.3 MB in the end (delta: 151.3 MB). Peak memory consumption was 151.3 MB. Max. memory is 11.5 GB. [2018-12-09 17:36:22,647 INFO L168 Benchmark]: Witness Printer took 46.45 ms. Allocated memory is still 1.2 GB. Free memory was 949.3 MB in the beginning and 942.5 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-09 17:36:22,649 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 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 146.59 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 932.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.70 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 49.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -198.4 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 430.78 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: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3141.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 949.3 MB in the end (delta: 151.3 MB). Peak memory consumption was 151.3 MB. Max. memory is 11.5 GB. * Witness Printer took 46.45 ms. Allocated memory is still 1.2 GB. Free memory was 949.3 MB in the beginning and 942.5 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 71]: 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: 17]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. SAFE Result, 3.1s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 2.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 122 SDtfs, 108 SDslu, 423 SDs, 0 SdLazy, 221 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 34 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 14 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 87 ConstructedInterpolants, 8 QuantifiedInterpolants, 9390 SizeOfPredicates, 13 NumberOfNonLiveVariables, 239 ConjunctsInSsa, 32 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...