./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4559177f-65e2-4570-a042-cd6ab7b3dbae/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4559177f-65e2-4570-a042-cd6ab7b3dbae/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4559177f-65e2-4570-a042-cd6ab7b3dbae/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4559177f-65e2-4570-a042-cd6ab7b3dbae/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4559177f-65e2-4570-a042-cd6ab7b3dbae/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4559177f-65e2-4570-a042-cd6ab7b3dbae/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 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c ......................................................................................................................................................................................................................................................................................................................... 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_4559177f-65e2-4570-a042-cd6ab7b3dbae/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4559177f-65e2-4570-a042-cd6ab7b3dbae/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4559177f-65e2-4570-a042-cd6ab7b3dbae/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4559177f-65e2-4570-a042-cd6ab7b3dbae/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4559177f-65e2-4570-a042-cd6ab7b3dbae/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4559177f-65e2-4570-a042-cd6ab7b3dbae/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 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c ............................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 16:25:49,499 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:25:49,500 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:25:49,507 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:25:49,507 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:25:49,508 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:25:49,508 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:25:49,509 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:25:49,510 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:25:49,511 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:25:49,512 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:25:49,512 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:25:49,513 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:25:49,514 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:25:49,515 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:25:49,515 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:25:49,515 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:25:49,517 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:25:49,518 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:25:49,520 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:25:49,520 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:25:49,521 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:25:49,523 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:25:49,523 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:25:49,523 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:25:49,524 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:25:49,525 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:25:49,525 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:25:49,526 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:25:49,527 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:25:49,528 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:25:49,528 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:25:49,528 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:25:49,528 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:25:49,529 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:25:49,530 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:25:49,530 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4559177f-65e2-4570-a042-cd6ab7b3dbae/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 16:25:49,540 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:25:49,541 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:25:49,541 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:25:49,542 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 16:25:49,542 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 16:25:49,542 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 16:25:49,542 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 16:25:49,542 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 16:25:49,542 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 16:25:49,542 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 16:25:49,542 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 16:25:49,543 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 16:25:49,543 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 16:25:49,543 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:25:49,543 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:25:49,543 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:25:49,544 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:25:49,544 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:25:49,544 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:25:49,544 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:25:49,544 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:25:49,544 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:25:49,544 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:25:49,545 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:25:49,545 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:25:49,545 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:25:49,545 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:25:49,545 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:25:49,545 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:25:49,545 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:25:49,545 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:25:49,545 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:25:49,545 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:25:49,546 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 16:25:49,546 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:25:49,546 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 16:25:49,546 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 16:25:49,546 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_4559177f-65e2-4570-a042-cd6ab7b3dbae/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 -> 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c [2018-11-18 16:25:49,569 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:25:49,577 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:25:49,579 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:25:49,580 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:25:49,580 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:25:49,581 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4559177f-65e2-4570-a042-cd6ab7b3dbae/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c [2018-11-18 16:25:49,616 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4559177f-65e2-4570-a042-cd6ab7b3dbae/bin-2019/utaipan/data/10fe5eb30/8eb1274834ad4969a4da846882d1b237/FLAG649e580e5 [2018-11-18 16:25:49,946 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:25:49,947 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4559177f-65e2-4570-a042-cd6ab7b3dbae/sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c [2018-11-18 16:25:49,952 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4559177f-65e2-4570-a042-cd6ab7b3dbae/bin-2019/utaipan/data/10fe5eb30/8eb1274834ad4969a4da846882d1b237/FLAG649e580e5 [2018-11-18 16:25:49,964 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4559177f-65e2-4570-a042-cd6ab7b3dbae/bin-2019/utaipan/data/10fe5eb30/8eb1274834ad4969a4da846882d1b237 [2018-11-18 16:25:49,966 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:25:49,967 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:25:49,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:25:49,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:25:49,971 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:25:49,971 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:25:49" (1/1) ... [2018-11-18 16:25:49,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25c31600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:49, skipping insertion in model container [2018-11-18 16:25:49,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:25:49" (1/1) ... [2018-11-18 16:25:49,979 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:25:49,997 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:25:50,135 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:25:50,137 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:25:50,152 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:25:50,164 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:25:50,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:50 WrapperNode [2018-11-18 16:25:50,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:25:50,165 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:25:50,165 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:25:50,166 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:25:50,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:50" (1/1) ... [2018-11-18 16:25:50,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:50" (1/1) ... [2018-11-18 16:25:50,180 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:25:50,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:25:50,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:25:50,180 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:25:50,221 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:50" (1/1) ... [2018-11-18 16:25:50,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:50" (1/1) ... [2018-11-18 16:25:50,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:50" (1/1) ... [2018-11-18 16:25:50,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:50" (1/1) ... [2018-11-18 16:25:50,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:50" (1/1) ... [2018-11-18 16:25:50,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:50" (1/1) ... [2018-11-18 16:25:50,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:50" (1/1) ... [2018-11-18 16:25:50,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:25:50,234 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:25:50,234 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:25:50,234 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:25:50,235 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4559177f-65e2-4570-a042-cd6ab7b3dbae/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:25:50,265 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:25:50,265 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:25:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-11-18 16:25:50,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-11-18 16:25:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 16:25:50,266 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 16:25:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 16:25:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 16:25:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:25:50,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:25:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 16:25:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:25:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:25:50,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:25:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 16:25:50,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 16:25:50,442 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:25:50,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:25:50 BoogieIcfgContainer [2018-11-18 16:25:50,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:25:50,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:25:50,442 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:25:50,444 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:25:50,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:25:49" (1/3) ... [2018-11-18 16:25:50,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48fd5c0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:25:50, skipping insertion in model container [2018-11-18 16:25:50,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:50" (2/3) ... [2018-11-18 16:25:50,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48fd5c0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:25:50, skipping insertion in model container [2018-11-18 16:25:50,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:25:50" (3/3) ... [2018-11-18 16:25:50,447 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1091_true-unreach-call.c [2018-11-18 16:25:50,455 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:25:50,459 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 16:25:50,468 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 16:25:50,486 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:25:50,486 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:25:50,486 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:25:50,487 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:25:50,487 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:25:50,487 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:25:50,487 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:25:50,487 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:25:50,497 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2018-11-18 16:25:50,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 16:25:50,501 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:25:50,502 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:25:50,504 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:25:50,508 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:25:50,509 INFO L82 PathProgramCache]: Analyzing trace with hash -2004278749, now seen corresponding path program 1 times [2018-11-18 16:25:50,510 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:25:50,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:25:50,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:25:50,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:25:50,546 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:25:50,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:25:50,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:25:50,605 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:25:50,605 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 16:25:50,605 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:25:50,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 16:25:50,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 16:25:50,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 16:25:50,618 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2018-11-18 16:25:50,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:25:50,631 INFO L93 Difference]: Finished difference Result 70 states and 96 transitions. [2018-11-18 16:25:50,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 16:25:50,632 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-18 16:25:50,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:25:50,640 INFO L225 Difference]: With dead ends: 70 [2018-11-18 16:25:50,640 INFO L226 Difference]: Without dead ends: 35 [2018-11-18 16:25:50,643 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 16:25:50,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-18 16:25:50,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-11-18 16:25:50,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-18 16:25:50,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2018-11-18 16:25:50,671 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 43 transitions. Word has length 22 [2018-11-18 16:25:50,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:25:50,671 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 43 transitions. [2018-11-18 16:25:50,672 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 16:25:50,672 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2018-11-18 16:25:50,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 16:25:50,672 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:25:50,672 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:25:50,673 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:25:50,673 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:25:50,673 INFO L82 PathProgramCache]: Analyzing trace with hash 2117184564, now seen corresponding path program 1 times [2018-11-18 16:25:50,673 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:25:50,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:25:50,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:25:50,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:25:50,674 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:25:50,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:25:50,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:25:50,750 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 16:25:50,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:25:50 BoogieIcfgContainer [2018-11-18 16:25:50,768 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 16:25:50,768 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:25:50,769 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:25:50,769 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:25:50,769 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:25:50" (3/4) ... [2018-11-18 16:25:50,771 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 16:25:50,771 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:25:50,772 INFO L168 Benchmark]: Toolchain (without parser) took 805.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -137.8 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:25:50,773 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:25:50,773 INFO L168 Benchmark]: CACSL2BoogieTranslator took 197.00 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 946.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:25:50,774 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.73 ms. Allocated memory is still 1.0 GB. Free memory is still 946.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:25:50,774 INFO L168 Benchmark]: Boogie Preprocessor took 53.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 946.8 MB in the beginning and 1.2 GB in the end (delta: -203.3 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:25:50,775 INFO L168 Benchmark]: RCFGBuilder took 207.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:25:50,775 INFO L168 Benchmark]: TraceAbstraction took 325.83 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: 31.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. [2018-11-18 16:25:50,776 INFO L168 Benchmark]: Witness Printer took 2.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:25:50,778 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 197.00 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 946.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.73 ms. Allocated memory is still 1.0 GB. Free memory is still 946.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 946.8 MB in the beginning and 1.2 GB in the end (delta: -203.3 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 207.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 325.83 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: 31.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. * Witness Printer took 2.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 72]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 57, overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 21. Possible FailurePath: [L11] static const float huge_ceil = 1.0e30; VAL [\old(huge_ceil)=6442450947, huge_ceil=1000000000000000000000000000000] [L66] float x = 0.0f / 0.0f; VAL [huge_ceil=1000000000000000000000000000000] [L68] CALL, EXPR ceil_float(x) VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000] [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000, x=6442450949] [L17] FCALL ieee_float_shape_type gf_u; [L18] FCALL gf_u.value = (x) [L19] EXPR, FCALL gf_u.word [L19] (i0) = gf_u.word [L20] COND FALSE !(0) VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000, i0=-2147483648, x=6442450949] [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000, i=-18014398509481985, i0=-2147483648, j0=2147483520, x=6442450949] [L23] COND FALSE !(j0 < 23) VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000, i=-18014398509481985, i0=-2147483648, j0=2147483520, x=6442450949] [L43] COND TRUE !((ix) < 0x7f800000L) [L44] RET return x + x; VAL [\old(x)=6442450949, huge_ceil=1000000000000000000000000000000, i=-18014398509481985, i0=-2147483648, j0=2147483520, x=6442450949] [L68] EXPR ceil_float(x) VAL [ceil_float(x)=6442450950, huge_ceil=1000000000000000000000000000000, x=6442450949] [L68] float res = ceil_float(x); [L71] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450950, huge_ceil=1000000000000000000000000000000] [L57] RET return x != x; VAL [\old(x)=6442450950, \result=0, huge_ceil=1000000000000000000000000000000, x=6442450950] [L71] EXPR isnan_float(res) VAL [huge_ceil=1000000000000000000000000000000, isnan_float(res)=0, res=6442450950, x=6442450949] [L71] COND TRUE !isnan_float(res) [L72] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000, res=6442450950, x=6442450949] - 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 0.1.23-5842f4b [2018-11-18 16:25:52,248 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:25:52,250 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:25:52,257 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:25:52,258 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:25:52,258 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:25:52,259 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:25:52,260 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:25:52,261 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:25:52,262 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:25:52,263 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:25:52,263 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:25:52,264 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:25:52,264 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:25:52,265 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:25:52,266 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:25:52,266 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:25:52,268 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:25:52,269 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:25:52,270 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:25:52,271 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:25:52,272 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:25:52,274 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:25:52,274 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:25:52,274 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:25:52,275 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:25:52,275 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:25:52,276 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:25:52,276 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:25:52,277 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:25:52,277 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:25:52,278 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:25:52,278 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:25:52,278 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:25:52,279 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:25:52,279 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:25:52,280 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4559177f-65e2-4570-a042-cd6ab7b3dbae/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 16:25:52,290 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:25:52,291 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:25:52,291 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:25:52,292 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 16:25:52,292 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 16:25:52,292 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 16:25:52,292 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 16:25:52,292 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 16:25:52,292 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 16:25:52,292 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 16:25:52,293 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:25:52,293 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:25:52,293 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:25:52,293 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:25:52,293 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:25:52,294 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:25:52,294 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:25:52,294 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 16:25:52,294 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 16:25:52,294 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:25:52,294 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:25:52,294 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:25:52,294 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:25:52,295 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:25:52,295 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:25:52,295 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:25:52,295 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:25:52,295 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:25:52,295 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:25:52,295 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:25:52,296 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:25:52,296 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 16:25:52,296 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:25:52,296 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 16:25:52,296 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 16:25:52,296 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_4559177f-65e2-4570-a042-cd6ab7b3dbae/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 -> 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c [2018-11-18 16:25:52,325 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:25:52,334 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:25:52,336 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:25:52,337 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:25:52,337 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:25:52,338 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4559177f-65e2-4570-a042-cd6ab7b3dbae/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c [2018-11-18 16:25:52,374 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4559177f-65e2-4570-a042-cd6ab7b3dbae/bin-2019/utaipan/data/bd509d9db/d655a635c83546ddb123ccc287270acf/FLAG5ea52aff4 [2018-11-18 16:25:52,675 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:25:52,675 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4559177f-65e2-4570-a042-cd6ab7b3dbae/sv-benchmarks/c/float-newlib/float_req_bl_1091_true-unreach-call.c [2018-11-18 16:25:52,679 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4559177f-65e2-4570-a042-cd6ab7b3dbae/bin-2019/utaipan/data/bd509d9db/d655a635c83546ddb123ccc287270acf/FLAG5ea52aff4 [2018-11-18 16:25:52,689 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4559177f-65e2-4570-a042-cd6ab7b3dbae/bin-2019/utaipan/data/bd509d9db/d655a635c83546ddb123ccc287270acf [2018-11-18 16:25:52,691 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:25:52,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:25:52,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:25:52,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:25:52,695 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:25:52,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:25:52" (1/1) ... [2018-11-18 16:25:52,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c1c7639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:52, skipping insertion in model container [2018-11-18 16:25:52,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:25:52" (1/1) ... [2018-11-18 16:25:52,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:25:52,721 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:25:52,860 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:25:52,864 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:25:52,882 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:25:52,897 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:25:52,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:52 WrapperNode [2018-11-18 16:25:52,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:25:52,898 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:25:52,898 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:25:52,898 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:25:52,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:52" (1/1) ... [2018-11-18 16:25:52,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:52" (1/1) ... [2018-11-18 16:25:52,920 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:25:52,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:25:52,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:25:52,920 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:25:52,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:52" (1/1) ... [2018-11-18 16:25:52,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:52" (1/1) ... [2018-11-18 16:25:52,928 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:52" (1/1) ... [2018-11-18 16:25:52,928 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:52" (1/1) ... [2018-11-18 16:25:52,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:52" (1/1) ... [2018-11-18 16:25:52,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:52" (1/1) ... [2018-11-18 16:25:52,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:52" (1/1) ... [2018-11-18 16:25:52,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:25:52,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:25:52,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:25:52,943 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:25:52,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4559177f-65e2-4570-a042-cd6ab7b3dbae/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:25:53,019 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:25:53,019 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:25:53,019 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-11-18 16:25:53,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-11-18 16:25:53,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 16:25:53,019 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 16:25:53,019 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 16:25:53,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:25:53,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:25:53,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:25:53,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 16:25:53,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:25:53,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:25:53,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 16:25:53,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 16:25:53,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 16:25:53,343 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:25:53,489 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:25:53,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:25:53 BoogieIcfgContainer [2018-11-18 16:25:53,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:25:53,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:25:53,490 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:25:53,492 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:25:53,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:25:52" (1/3) ... [2018-11-18 16:25:53,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26f8674a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:25:53, skipping insertion in model container [2018-11-18 16:25:53,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:25:52" (2/3) ... [2018-11-18 16:25:53,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26f8674a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:25:53, skipping insertion in model container [2018-11-18 16:25:53,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:25:53" (3/3) ... [2018-11-18 16:25:53,494 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1091_true-unreach-call.c [2018-11-18 16:25:53,502 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:25:53,508 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 16:25:53,518 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 16:25:53,537 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:25:53,537 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:25:53,537 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:25:53,537 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:25:53,537 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:25:53,537 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:25:53,537 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:25:53,538 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:25:53,538 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:25:53,547 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-11-18 16:25:53,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 16:25:53,550 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:25:53,551 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:25:53,552 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:25:53,555 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:25:53,555 INFO L82 PathProgramCache]: Analyzing trace with hash -2130801848, now seen corresponding path program 1 times [2018-11-18 16:25:53,558 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:25:53,558 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4559177f-65e2-4570-a042-cd6ab7b3dbae/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-18 16:25:53,564 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:25:53,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:25:53,601 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:25:53,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:25:53,614 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:25:53,624 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:25:53,625 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 16:25:53,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 16:25:53,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 16:25:53,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 16:25:53,636 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2018-11-18 16:25:53,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:25:53,649 INFO L93 Difference]: Finished difference Result 68 states and 94 transitions. [2018-11-18 16:25:53,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 16:25:53,650 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-18 16:25:53,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:25:53,657 INFO L225 Difference]: With dead ends: 68 [2018-11-18 16:25:53,657 INFO L226 Difference]: Without dead ends: 34 [2018-11-18 16:25:53,659 INFO L604 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 [2018-11-18 16:25:53,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-18 16:25:53,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-18 16:25:53,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-18 16:25:53,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2018-11-18 16:25:53,684 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 21 [2018-11-18 16:25:53,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:25:53,685 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2018-11-18 16:25:53,685 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 16:25:53,685 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2018-11-18 16:25:53,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 16:25:53,686 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:25:53,686 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:25:53,686 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:25:53,686 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:25:53,686 INFO L82 PathProgramCache]: Analyzing trace with hash 327472218, now seen corresponding path program 1 times [2018-11-18 16:25:53,686 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:25:53,687 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4559177f-65e2-4570-a042-cd6ab7b3dbae/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 [2018-11-18 16:25:53,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:25:53,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:25:53,720 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:25:53,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:25:53,847 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:25:53,854 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:25:53,854 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 16:25:53,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 16:25:53,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 16:25:53,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-18 16:25:53,856 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand 9 states. [2018-11-18 16:25:54,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:25:54,469 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2018-11-18 16:25:54,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 16:25:54,470 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-11-18 16:25:54,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:25:54,472 INFO L225 Difference]: With dead ends: 43 [2018-11-18 16:25:54,472 INFO L226 Difference]: Without dead ends: 36 [2018-11-18 16:25:54,473 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-18 16:25:54,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-18 16:25:54,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2018-11-18 16:25:54,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-18 16:25:54,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2018-11-18 16:25:54,480 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 22 [2018-11-18 16:25:54,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:25:54,481 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2018-11-18 16:25:54,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 16:25:54,481 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2018-11-18 16:25:54,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 16:25:54,481 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:25:54,482 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:25:54,482 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:25:54,482 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:25:54,482 INFO L82 PathProgramCache]: Analyzing trace with hash 523985723, now seen corresponding path program 1 times [2018-11-18 16:25:54,482 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:25:54,483 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4559177f-65e2-4570-a042-cd6ab7b3dbae/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-18 16:25:54,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:25:54,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:25:54,548 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:25:54,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:25:54,876 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:25:54,883 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:25:54,884 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 16:25:54,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 16:25:54,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 16:25:54,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-18 16:25:54,885 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand 9 states. [2018-11-18 16:25:55,303 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-18 16:25:56,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:25:56,059 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2018-11-18 16:25:56,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 16:25:56,060 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-11-18 16:25:56,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:25:56,060 INFO L225 Difference]: With dead ends: 41 [2018-11-18 16:25:56,061 INFO L226 Difference]: Without dead ends: 33 [2018-11-18 16:25:56,061 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-18 16:25:56,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-18 16:25:56,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-18 16:25:56,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-18 16:25:56,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2018-11-18 16:25:56,064 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 22 [2018-11-18 16:25:56,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:25:56,064 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2018-11-18 16:25:56,065 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 16:25:56,065 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2018-11-18 16:25:56,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 16:25:56,065 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:25:56,065 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:25:56,066 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:25:56,066 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:25:56,066 INFO L82 PathProgramCache]: Analyzing trace with hash -562125384, now seen corresponding path program 1 times [2018-11-18 16:25:56,066 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:25:56,066 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4559177f-65e2-4570-a042-cd6ab7b3dbae/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-18 16:25:56,069 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:25:56,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:25:56,114 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:25:56,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:25:56,192 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:25:56,204 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:25:56,204 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 16:25:56,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 16:25:56,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 16:25:56,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 16:25:56,205 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 7 states. [2018-11-18 16:25:56,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:25:56,753 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2018-11-18 16:25:56,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 16:25:56,754 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-18 16:25:56,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:25:56,754 INFO L225 Difference]: With dead ends: 39 [2018-11-18 16:25:56,755 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 16:25:56,755 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-11-18 16:25:56,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 16:25:56,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 16:25:56,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 16:25:56,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 16:25:56,756 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-11-18 16:25:56,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:25:56,756 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 16:25:56,756 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 16:25:56,756 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 16:25:56,756 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 16:25:56,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 16:25:56,819 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 57) no Hoare annotation was computed. [2018-11-18 16:25:56,819 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 57) the Hoare annotation is: true [2018-11-18 16:25:56,819 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 57) no Hoare annotation was computed. [2018-11-18 16:25:56,820 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 16:25:56,820 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 16:25:56,820 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 16:25:56,820 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 16:25:56,820 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 16:25:56,820 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 16:25:56,820 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 16:25:56,820 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 59 77) the Hoare annotation is: true [2018-11-18 16:25:56,820 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 59 77) no Hoare annotation was computed. [2018-11-18 16:25:56,821 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 59 77) no Hoare annotation was computed. [2018-11-18 16:25:56,821 INFO L425 ceAbstractionStarter]: For program point L72(line 72) no Hoare annotation was computed. [2018-11-18 16:25:56,821 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 72) no Hoare annotation was computed. [2018-11-18 16:25:56,821 INFO L421 ceAbstractionStarter]: At program point L71(line 71) 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))) [2018-11-18 16:25:56,821 INFO L425 ceAbstractionStarter]: For program point L71-1(lines 71 74) no Hoare annotation was computed. [2018-11-18 16:25:56,821 INFO L421 ceAbstractionStarter]: At program point L68(line 68) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2018-11-18 16:25:56,821 INFO L425 ceAbstractionStarter]: For program point L68-1(line 68) no Hoare annotation was computed. [2018-11-18 16:25:56,821 INFO L425 ceAbstractionStarter]: For program point L23(lines 23 47) no Hoare annotation was computed. [2018-11-18 16:25:56,822 INFO L425 ceAbstractionStarter]: For program point L48(lines 48 52) no Hoare annotation was computed. [2018-11-18 16:25:56,822 INFO L425 ceAbstractionStarter]: For program point L48-2(lines 13 54) no Hoare annotation was computed. [2018-11-18 16:25:56,822 INFO L425 ceAbstractionStarter]: For program point L48-3(lines 48 52) no Hoare annotation was computed. [2018-11-18 16:25:56,822 INFO L425 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2018-11-18 16:25:56,822 INFO L428 ceAbstractionStarter]: At program point ceil_floatENTRY(lines 13 54) the Hoare annotation is: true [2018-11-18 16:25:56,822 INFO L425 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-11-18 16:25:56,822 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 41) no Hoare annotation was computed. [2018-11-18 16:25:56,822 INFO L425 ceAbstractionStarter]: For program point ceil_floatFINAL(lines 13 54) no Hoare annotation was computed. [2018-11-18 16:25:56,822 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-11-18 16:25:56,822 INFO L421 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (= |ceil_float_#in~x| ceil_float_~x) [2018-11-18 16:25:56,823 INFO L425 ceAbstractionStarter]: For program point L16-4(lines 16 20) no Hoare annotation was computed. [2018-11-18 16:25:56,823 INFO L425 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-11-18 16:25:56,823 INFO L425 ceAbstractionStarter]: For program point ceil_floatEXIT(lines 13 54) no Hoare annotation was computed. [2018-11-18 16:25:56,823 INFO L425 ceAbstractionStarter]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2018-11-18 16:25:56,823 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-11-18 16:25:56,823 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-11-18 16:25:56,823 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2018-11-18 16:25:56,823 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 46) no Hoare annotation was computed. [2018-11-18 16:25:56,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:25:56 BoogieIcfgContainer [2018-11-18 16:25:56,831 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 16:25:56,831 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:25:56,831 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:25:56,832 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:25:56,832 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:25:53" (3/4) ... [2018-11-18 16:25:56,835 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 16:25:56,839 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-18 16:25:56,839 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 16:25:56,839 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 16:25:56,839 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_float [2018-11-18 16:25:56,843 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 16:25:56,843 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 16:25:56,843 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 16:25:56,861 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 16:25:56,879 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4559177f-65e2-4570-a042-cd6ab7b3dbae/bin-2019/utaipan/witness.graphml [2018-11-18 16:25:56,879 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:25:56,880 INFO L168 Benchmark]: Toolchain (without parser) took 4188.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 943.8 MB in the beginning and 930.5 MB in the end (delta: 13.3 MB). Peak memory consumption was 138.6 MB. Max. memory is 11.5 GB. [2018-11-18 16:25:56,880 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:25:56,880 INFO L168 Benchmark]: CACSL2BoogieTranslator took 205.25 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 927.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 16:25:56,881 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.15 ms. Allocated memory is still 1.0 GB. Free memory is still 927.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:25:56,881 INFO L168 Benchmark]: Boogie Preprocessor took 22.05 ms. Allocated memory is still 1.0 GB. Free memory is still 927.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:25:56,881 INFO L168 Benchmark]: RCFGBuilder took 547.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 927.7 MB in the beginning and 1.1 GB in the end (delta: -165.1 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2018-11-18 16:25:56,881 INFO L168 Benchmark]: TraceAbstraction took 3341.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 937.3 MB in the end (delta: 155.5 MB). Peak memory consumption was 155.5 MB. Max. memory is 11.5 GB. [2018-11-18 16:25:56,882 INFO L168 Benchmark]: Witness Printer took 47.84 ms. Allocated memory is still 1.2 GB. Free memory was 937.3 MB in the beginning and 930.5 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-18 16:25:56,883 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 205.25 ms. Allocated memory is still 1.0 GB. Free memory was 943.8 MB in the beginning and 927.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.15 ms. Allocated memory is still 1.0 GB. Free memory is still 927.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.05 ms. Allocated memory is still 1.0 GB. Free memory is still 927.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 547.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 927.7 MB in the beginning and 1.1 GB in the end (delta: -165.1 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3341.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 937.3 MB in the end (delta: 155.5 MB). Peak memory consumption was 155.5 MB. Max. memory is 11.5 GB. * Witness Printer took 47.84 ms. Allocated memory is still 1.2 GB. Free memory was 937.3 MB in the beginning and 930.5 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: 72]: 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: 16]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. SAFE Result, 3.2s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 2.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 122 SDtfs, 107 SDslu, 423 SDs, 0 SdLazy, 214 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s 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, 233 ConjunctsInSsa, 30 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...