./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_26b4c96f-c91c-4968-a8c8-6b88f94b7154/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_26b4c96f-c91c-4968-a8c8-6b88f94b7154/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_26b4c96f-c91c-4968-a8c8-6b88f94b7154/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_26b4c96f-c91c-4968-a8c8-6b88f94b7154/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_26b4c96f-c91c-4968-a8c8-6b88f94b7154/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_26b4c96f-c91c-4968-a8c8-6b88f94b7154/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 ....................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_26b4c96f-c91c-4968-a8c8-6b88f94b7154/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_26b4c96f-c91c-4968-a8c8-6b88f94b7154/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_26b4c96f-c91c-4968-a8c8-6b88f94b7154/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_26b4c96f-c91c-4968-a8c8-6b88f94b7154/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_26b4c96f-c91c-4968-a8c8-6b88f94b7154/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_26b4c96f-c91c-4968-a8c8-6b88f94b7154/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 ................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 14:19:47,276 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:19:47,277 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:19:47,284 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:19:47,284 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:19:47,285 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:19:47,286 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:19:47,288 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:19:47,289 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:19:47,290 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:19:47,291 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:19:47,291 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:19:47,292 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:19:47,293 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:19:47,293 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:19:47,294 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:19:47,295 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:19:47,297 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:19:47,298 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:19:47,300 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:19:47,301 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:19:47,302 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:19:47,304 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:19:47,304 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:19:47,304 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:19:47,305 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:19:47,306 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:19:47,306 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:19:47,307 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:19:47,308 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:19:47,308 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:19:47,308 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:19:47,309 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:19:47,309 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:19:47,310 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:19:47,311 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:19:47,311 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_26b4c96f-c91c-4968-a8c8-6b88f94b7154/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 14:19:47,322 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:19:47,322 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:19:47,322 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:19:47,323 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 14:19:47,323 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 14:19:47,323 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 14:19:47,324 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 14:19:47,324 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 14:19:47,324 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 14:19:47,324 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 14:19:47,324 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 14:19:47,324 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 14:19:47,324 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 14:19:47,325 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:19:47,325 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:19:47,325 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:19:47,325 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:19:47,326 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:19:47,326 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:19:47,326 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:19:47,326 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:19:47,326 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:19:47,326 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:19:47,326 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:19:47,327 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:19:47,327 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:19:47,329 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:19:47,329 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:19:47,329 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:19:47,329 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:19:47,329 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:19:47,330 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:19:47,330 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:19:47,330 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 14:19:47,330 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:19:47,330 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 14:19:47,330 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 14:19:47,331 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_26b4c96f-c91c-4968-a8c8-6b88f94b7154/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 [2018-11-18 14:19:47,354 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:19:47,363 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:19:47,365 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:19:47,367 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:19:47,367 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:19:47,367 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_26b4c96f-c91c-4968-a8c8-6b88f94b7154/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c [2018-11-18 14:19:47,406 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_26b4c96f-c91c-4968-a8c8-6b88f94b7154/bin-2019/utaipan/data/5de1f28c6/3d4ae4d2bc53475caf89b59b7efd623e/FLAG0b8b0e2b1 [2018-11-18 14:19:47,717 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:19:47,718 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_26b4c96f-c91c-4968-a8c8-6b88f94b7154/sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c [2018-11-18 14:19:47,722 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_26b4c96f-c91c-4968-a8c8-6b88f94b7154/bin-2019/utaipan/data/5de1f28c6/3d4ae4d2bc53475caf89b59b7efd623e/FLAG0b8b0e2b1 [2018-11-18 14:19:47,731 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_26b4c96f-c91c-4968-a8c8-6b88f94b7154/bin-2019/utaipan/data/5de1f28c6/3d4ae4d2bc53475caf89b59b7efd623e [2018-11-18 14:19:47,733 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:19:47,734 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:19:47,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:19:47,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:19:47,737 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:19:47,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:19:47" (1/1) ... [2018-11-18 14:19:47,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d4fb5ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:19:47, skipping insertion in model container [2018-11-18 14:19:47,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:19:47" (1/1) ... [2018-11-18 14:19:47,745 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:19:47,757 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:19:47,872 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:19:47,874 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:19:47,889 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:19:47,902 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:19:47,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:19:47 WrapperNode [2018-11-18 14:19:47,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:19:47,903 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:19:47,903 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:19:47,903 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:19:47,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:19:47" (1/1) ... [2018-11-18 14:19:47,919 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:19:47" (1/1) ... [2018-11-18 14:19:47,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:19:47,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:19:47,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:19:47,926 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:19:47,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:19:47" (1/1) ... [2018-11-18 14:19:47,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:19:47" (1/1) ... [2018-11-18 14:19:47,973 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:19:47" (1/1) ... [2018-11-18 14:19:47,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:19:47" (1/1) ... [2018-11-18 14:19:47,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:19:47" (1/1) ... [2018-11-18 14:19:47,987 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:19:47" (1/1) ... [2018-11-18 14:19:47,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:19:47" (1/1) ... [2018-11-18 14:19:47,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:19:47,991 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:19:47,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:19:47,991 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:19:47,993 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:19:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_26b4c96f-c91c-4968-a8c8-6b88f94b7154/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:19:48,038 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:19:48,038 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:19:48,038 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 14:19:48,038 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 14:19:48,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 14:19:48,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 14:19:48,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:19:48,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:19:48,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 14:19:48,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:19:48,039 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-11-18 14:19:48,039 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-11-18 14:19:48,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:19:48,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:19:48,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 14:19:48,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 14:19:48,255 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:19:48,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:19:48 BoogieIcfgContainer [2018-11-18 14:19:48,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:19:48,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:19:48,256 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:19:48,259 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:19:48,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:19:47" (1/3) ... [2018-11-18 14:19:48,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@168cec96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:19:48, skipping insertion in model container [2018-11-18 14:19:48,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:19:47" (2/3) ... [2018-11-18 14:19:48,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@168cec96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:19:48, skipping insertion in model container [2018-11-18 14:19:48,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:19:48" (3/3) ... [2018-11-18 14:19:48,263 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1051_true-unreach-call.c [2018-11-18 14:19:48,271 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:19:48,280 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:19:48,294 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:19:48,322 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:19:48,323 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:19:48,323 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:19:48,323 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:19:48,323 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:19:48,323 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:19:48,323 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:19:48,323 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:19:48,339 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2018-11-18 14:19:48,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 14:19:48,345 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:19:48,345 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 14:19:48,348 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:19:48,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:19:48,353 INFO L82 PathProgramCache]: Analyzing trace with hash 330849232, now seen corresponding path program 1 times [2018-11-18 14:19:48,355 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:19:48,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:19:48,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:19:48,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:19:48,398 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:19:48,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:19:48,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:19:48,466 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:19:48,466 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:19:48,466 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:19:48,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 14:19:48,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 14:19:48,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:19:48,485 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2018-11-18 14:19:48,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:19:48,500 INFO L93 Difference]: Finished difference Result 70 states and 96 transitions. [2018-11-18 14:19:48,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 14:19:48,501 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-18 14:19:48,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:19:48,509 INFO L225 Difference]: With dead ends: 70 [2018-11-18 14:19:48,510 INFO L226 Difference]: Without dead ends: 35 [2018-11-18 14:19:48,513 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:19:48,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-18 14:19:48,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-11-18 14:19:48,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-18 14:19:48,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2018-11-18 14:19:48,540 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 43 transitions. Word has length 22 [2018-11-18 14:19:48,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:19:48,540 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 43 transitions. [2018-11-18 14:19:48,540 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 14:19:48,541 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2018-11-18 14:19:48,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 14:19:48,541 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:19:48,541 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:19:48,542 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:19:48,542 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:19:48,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1365368106, now seen corresponding path program 1 times [2018-11-18 14:19:48,542 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:19:48,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:19:48,543 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:19:48,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:19:48,543 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:19:48,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:19:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:19:48,618 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 14:19:48,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:19:48 BoogieIcfgContainer [2018-11-18 14:19:48,640 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 14:19:48,640 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:19:48,640 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:19:48,640 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:19:48,641 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:19:48" (3/4) ... [2018-11-18 14:19:48,644 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 14:19:48,644 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:19:48,644 INFO L168 Benchmark]: Toolchain (without parser) took 911.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -118.9 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-11-18 14:19:48,645 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:19:48,646 INFO L168 Benchmark]: CACSL2BoogieTranslator took 168.27 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 945.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:19:48,646 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.17 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:19:48,646 INFO L168 Benchmark]: Boogie Preprocessor took 64.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -182.7 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:19:48,647 INFO L168 Benchmark]: RCFGBuilder took 264.31 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:19:48,647 INFO L168 Benchmark]: TraceAbstraction took 383.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. [2018-11-18 14:19:48,648 INFO L168 Benchmark]: Witness Printer took 3.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:19:48,650 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 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 168.27 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 945.8 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 23.17 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 64.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -182.7 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 264.31 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 383.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.67 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: 71]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 58, overapproximation of someBinaryArithmeticFLOAToperation at line 45, overapproximation of bitwiseAnd at line 22. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; VAL [\old(huge_floor)=2147483522, huge_floor=1000000000000000000000000000000] [L66] float x = 0.0f / 0.0f; VAL [huge_floor=1000000000000000000000000000000] [L67] CALL, EXPR floor_float(x) VAL [\old(x)=2147483527, huge_floor=1000000000000000000000000000000] [L15] __int32_t i0, j0; [L16] __uint32_t i, ix; VAL [\old(x)=2147483527, huge_floor=1000000000000000000000000000000, x=2147483527] [L18] FCALL ieee_float_shape_type gf_u; [L19] FCALL gf_u.value = (x) [L20] EXPR, FCALL gf_u.word [L20] (i0) = gf_u.word [L21] COND FALSE !(0) VAL [\old(x)=2147483527, huge_floor=1000000000000000000000000000000, i0=3, x=2147483527] [L22] ix = (i0 & 0x7fffffff) [L23] j0 = (ix >> 23) - 0x7f VAL [\old(x)=2147483527, huge_floor=1000000000000000000000000000000, i=-18014398509481985, i0=3, j0=2147483520, x=2147483527] [L24] COND FALSE !(j0 < 23) VAL [\old(x)=2147483527, huge_floor=1000000000000000000000000000000, i=-18014398509481985, i0=3, j0=2147483520, x=2147483527] [L44] COND TRUE !((ix) < 0x7f800000L) [L45] RET return x + x; VAL [\old(x)=2147483527, huge_floor=1000000000000000000000000000000, i=-18014398509481985, i0=3, j0=2147483520, x=2147483527] [L67] EXPR floor_float(x) VAL [floor_float(x)=2147483525, huge_floor=1000000000000000000000000000000, x=2147483527] [L67] float res = floor_float(x); [L70] CALL, EXPR isnan_float(res) VAL [\old(x)=2147483525, huge_floor=1000000000000000000000000000000] [L58] RET return x != x; VAL [\old(x)=2147483525, \result=0, huge_floor=1000000000000000000000000000000, x=2147483525] [L70] EXPR isnan_float(res) VAL [huge_floor=1000000000000000000000000000000, isnan_float(res)=0, res=2147483525, x=2147483527] [L70] COND TRUE !isnan_float(res) [L71] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000, res=2147483525, x=2147483527] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 39 locations, 1 error locations. UNSAFE Result, 0.3s 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 14:19:50,162 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:19:50,164 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:19:50,172 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:19:50,172 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:19:50,173 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:19:50,174 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:19:50,175 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:19:50,176 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:19:50,177 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:19:50,178 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:19:50,178 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:19:50,179 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:19:50,180 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:19:50,181 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:19:50,181 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:19:50,182 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:19:50,185 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:19:50,186 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:19:50,187 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:19:50,188 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:19:50,189 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:19:50,191 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:19:50,191 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:19:50,192 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:19:50,192 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:19:50,193 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:19:50,194 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:19:50,194 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:19:50,196 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:19:50,196 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:19:50,197 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:19:50,197 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:19:50,197 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:19:50,198 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:19:50,198 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:19:50,199 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_26b4c96f-c91c-4968-a8c8-6b88f94b7154/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 14:19:50,210 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:19:50,210 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:19:50,211 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:19:50,212 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 14:19:50,212 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 14:19:50,212 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 14:19:50,212 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 14:19:50,212 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 14:19:50,212 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 14:19:50,213 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 14:19:50,213 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:19:50,213 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:19:50,213 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:19:50,214 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:19:50,214 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:19:50,214 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:19:50,214 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:19:50,214 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 14:19:50,214 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 14:19:50,214 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:19:50,214 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:19:50,215 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:19:50,215 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:19:50,217 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:19:50,217 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:19:50,217 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:19:50,217 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:19:50,217 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:19:50,218 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:19:50,218 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:19:50,218 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:19:50,218 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 14:19:50,218 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:19:50,218 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 14:19:50,218 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 14:19:50,218 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_26b4c96f-c91c-4968-a8c8-6b88f94b7154/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 [2018-11-18 14:19:50,251 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:19:50,260 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:19:50,263 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:19:50,264 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:19:50,265 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:19:50,265 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_26b4c96f-c91c-4968-a8c8-6b88f94b7154/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c [2018-11-18 14:19:50,309 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_26b4c96f-c91c-4968-a8c8-6b88f94b7154/bin-2019/utaipan/data/510968e61/c3a5dc2d77da4bae932b81eda829d6d8/FLAGa77657fb4 [2018-11-18 14:19:50,646 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:19:50,646 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_26b4c96f-c91c-4968-a8c8-6b88f94b7154/sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c [2018-11-18 14:19:50,650 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_26b4c96f-c91c-4968-a8c8-6b88f94b7154/bin-2019/utaipan/data/510968e61/c3a5dc2d77da4bae932b81eda829d6d8/FLAGa77657fb4 [2018-11-18 14:19:51,071 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_26b4c96f-c91c-4968-a8c8-6b88f94b7154/bin-2019/utaipan/data/510968e61/c3a5dc2d77da4bae932b81eda829d6d8 [2018-11-18 14:19:51,074 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:19:51,075 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:19:51,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:19:51,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:19:51,078 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:19:51,079 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:19:51" (1/1) ... [2018-11-18 14:19:51,081 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eb5b9f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:19:51, skipping insertion in model container [2018-11-18 14:19:51,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:19:51" (1/1) ... [2018-11-18 14:19:51,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:19:51,102 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:19:51,228 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:19:51,231 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:19:51,251 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:19:51,268 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:19:51,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:19:51 WrapperNode [2018-11-18 14:19:51,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:19:51,269 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:19:51,269 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:19:51,269 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:19:51,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:19:51" (1/1) ... [2018-11-18 14:19:51,281 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:19:51" (1/1) ... [2018-11-18 14:19:51,287 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:19:51,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:19:51,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:19:51,287 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:19:51,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:19:51" (1/1) ... [2018-11-18 14:19:51,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:19:51" (1/1) ... [2018-11-18 14:19:51,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:19:51" (1/1) ... [2018-11-18 14:19:51,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:19:51" (1/1) ... [2018-11-18 14:19:51,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:19:51" (1/1) ... [2018-11-18 14:19:51,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:19:51" (1/1) ... [2018-11-18 14:19:51,312 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:19:51" (1/1) ... [2018-11-18 14:19:51,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:19:51,315 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:19:51,315 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:19:51,316 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:19:51,316 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:19:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_26b4c96f-c91c-4968-a8c8-6b88f94b7154/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:19:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:19:51,395 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:19:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 14:19:51,395 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 14:19:51,396 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 14:19:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:19:51,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:19:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:19:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 14:19:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-11-18 14:19:51,396 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-11-18 14:19:51,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:19:51,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:19:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 14:19:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 14:19:51,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 14:19:51,912 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:19:51,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:19:51 BoogieIcfgContainer [2018-11-18 14:19:51,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:19:51,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:19:51,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:19:51,915 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:19:51,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:19:51" (1/3) ... [2018-11-18 14:19:51,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@680e795e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:19:51, skipping insertion in model container [2018-11-18 14:19:51,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:19:51" (2/3) ... [2018-11-18 14:19:51,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@680e795e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:19:51, skipping insertion in model container [2018-11-18 14:19:51,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:19:51" (3/3) ... [2018-11-18 14:19:51,917 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1051_true-unreach-call.c [2018-11-18 14:19:51,923 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:19:51,928 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:19:51,937 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:19:51,956 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:19:51,957 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:19:51,957 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:19:51,957 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:19:51,957 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:19:51,957 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:19:51,957 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:19:51,958 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:19:51,958 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:19:51,968 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-11-18 14:19:51,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 14:19:51,972 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:19:51,973 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 14:19:51,974 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:19:51,978 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:19:51,978 INFO L82 PathProgramCache]: Analyzing trace with hash -510771927, now seen corresponding path program 1 times [2018-11-18 14:19:51,981 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:19:51,981 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_26b4c96f-c91c-4968-a8c8-6b88f94b7154/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-18 14:19:51,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:19:52,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:19:52,037 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:19:52,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:19:52,049 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:19:52,061 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:19:52,061 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:19:52,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 14:19:52,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 14:19:52,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:19:52,073 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2018-11-18 14:19:52,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:19:52,088 INFO L93 Difference]: Finished difference Result 68 states and 94 transitions. [2018-11-18 14:19:52,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 14:19:52,089 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-18 14:19:52,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:19:52,098 INFO L225 Difference]: With dead ends: 68 [2018-11-18 14:19:52,099 INFO L226 Difference]: Without dead ends: 34 [2018-11-18 14:19:52,101 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 14:19:52,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-18 14:19:52,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-18 14:19:52,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-18 14:19:52,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2018-11-18 14:19:52,129 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 21 [2018-11-18 14:19:52,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:19:52,130 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2018-11-18 14:19:52,130 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 14:19:52,130 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2018-11-18 14:19:52,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 14:19:52,131 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:19:52,131 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 14:19:52,131 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:19:52,131 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:19:52,132 INFO L82 PathProgramCache]: Analyzing trace with hash -196296473, now seen corresponding path program 1 times [2018-11-18 14:19:52,132 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:19:52,132 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_26b4c96f-c91c-4968-a8c8-6b88f94b7154/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 14:19:52,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:19:52,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:19:52,189 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:19:52,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:19:52,581 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:19:52,588 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:19:52,588 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 14:19:52,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 14:19:52,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 14:19:52,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-18 14:19:52,591 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand 9 states. [2018-11-18 14:19:53,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:19:53,923 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2018-11-18 14:19:53,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 14:19:53,924 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-11-18 14:19:53,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:19:53,926 INFO L225 Difference]: With dead ends: 43 [2018-11-18 14:19:53,926 INFO L226 Difference]: Without dead ends: 36 [2018-11-18 14:19:53,927 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-18 14:19:53,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-18 14:19:53,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2018-11-18 14:19:53,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-18 14:19:53,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2018-11-18 14:19:53,935 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 22 [2018-11-18 14:19:53,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:19:53,936 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2018-11-18 14:19:53,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 14:19:53,936 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2018-11-18 14:19:53,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 14:19:53,937 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:19:53,937 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 14:19:53,937 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:19:53,937 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:19:53,938 INFO L82 PathProgramCache]: Analyzing trace with hash -392809978, now seen corresponding path program 1 times [2018-11-18 14:19:53,938 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:19:53,938 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_26b4c96f-c91c-4968-a8c8-6b88f94b7154/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-18 14:19:53,945 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:19:53,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:19:53,972 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:19:54,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:19:54,068 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:19:54,075 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:19:54,075 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 14:19:54,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 14:19:54,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 14:19:54,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-18 14:19:54,077 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand 9 states. [2018-11-18 14:19:54,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:19:54,658 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2018-11-18 14:19:54,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 14:19:54,658 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-11-18 14:19:54,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:19:54,659 INFO L225 Difference]: With dead ends: 41 [2018-11-18 14:19:54,659 INFO L226 Difference]: Without dead ends: 33 [2018-11-18 14:19:54,660 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-18 14:19:54,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-18 14:19:54,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-18 14:19:54,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-18 14:19:54,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2018-11-18 14:19:54,663 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 22 [2018-11-18 14:19:54,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:19:54,663 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2018-11-18 14:19:54,663 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 14:19:54,663 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2018-11-18 14:19:54,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 14:19:54,664 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:19:54,664 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:19:54,664 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:19:54,664 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:19:54,665 INFO L82 PathProgramCache]: Analyzing trace with hash 2078939236, now seen corresponding path program 1 times [2018-11-18 14:19:54,665 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:19:54,665 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_26b4c96f-c91c-4968-a8c8-6b88f94b7154/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-18 14:19:54,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:19:54,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:19:54,715 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:19:54,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:19:54,800 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:19:54,812 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:19:54,812 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 14:19:54,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:19:54,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:19:54,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:19:54,813 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 7 states. [2018-11-18 14:19:55,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:19:55,548 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2018-11-18 14:19:55,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 14:19:55,549 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-18 14:19:55,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:19:55,549 INFO L225 Difference]: With dead ends: 39 [2018-11-18 14:19:55,549 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 14:19:55,550 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-11-18 14:19:55,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 14:19:55,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 14:19:55,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 14:19:55,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 14:19:55,551 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-11-18 14:19:55,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:19:55,551 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 14:19:55,551 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 14:19:55,551 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 14:19:55,551 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 14:19:55,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 14:19:55,624 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 58) no Hoare annotation was computed. [2018-11-18 14:19:55,625 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 58) the Hoare annotation is: true [2018-11-18 14:19:55,625 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 58) no Hoare annotation was computed. [2018-11-18 14:19:55,625 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 14:19:55,625 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 14:19:55,625 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 14:19:55,625 INFO L425 ceAbstractionStarter]: For program point L27(lines 27 31) no Hoare annotation was computed. [2018-11-18 14:19:55,625 INFO L425 ceAbstractionStarter]: For program point L44(lines 44 47) no Hoare annotation was computed. [2018-11-18 14:19:55,625 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 48) no Hoare annotation was computed. [2018-11-18 14:19:55,625 INFO L425 ceAbstractionStarter]: For program point L49(lines 49 53) no Hoare annotation was computed. [2018-11-18 14:19:55,625 INFO L425 ceAbstractionStarter]: For program point L49-2(lines 14 55) no Hoare annotation was computed. [2018-11-18 14:19:55,625 INFO L425 ceAbstractionStarter]: For program point L49-3(lines 49 53) no Hoare annotation was computed. [2018-11-18 14:19:55,625 INFO L425 ceAbstractionStarter]: For program point L37(lines 37 41) no Hoare annotation was computed. [2018-11-18 14:19:55,626 INFO L425 ceAbstractionStarter]: For program point L29(lines 29 31) no Hoare annotation was computed. [2018-11-18 14:19:55,626 INFO L425 ceAbstractionStarter]: For program point floor_floatEXIT(lines 14 55) no Hoare annotation was computed. [2018-11-18 14:19:55,626 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 42) no Hoare annotation was computed. [2018-11-18 14:19:55,626 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2018-11-18 14:19:55,626 INFO L421 ceAbstractionStarter]: At program point L17-3(lines 17 21) the Hoare annotation is: (= |floor_float_#in~x| floor_float_~x) [2018-11-18 14:19:55,626 INFO L425 ceAbstractionStarter]: For program point L17-4(lines 17 21) no Hoare annotation was computed. [2018-11-18 14:19:55,626 INFO L425 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2018-11-18 14:19:55,626 INFO L425 ceAbstractionStarter]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2018-11-18 14:19:55,626 INFO L425 ceAbstractionStarter]: For program point floor_floatFINAL(lines 14 55) no Hoare annotation was computed. [2018-11-18 14:19:55,626 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 32) no Hoare annotation was computed. [2018-11-18 14:19:55,626 INFO L428 ceAbstractionStarter]: At program point floor_floatENTRY(lines 14 55) the Hoare annotation is: true [2018-11-18 14:19:55,626 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 36) no Hoare annotation was computed. [2018-11-18 14:19:55,626 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 14:19:55,626 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 14:19:55,626 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 14:19:55,627 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 14:19:55,627 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 60 76) the Hoare annotation is: true [2018-11-18 14:19:55,627 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 60 76) no Hoare annotation was computed. [2018-11-18 14:19:55,627 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 60 76) no Hoare annotation was computed. [2018-11-18 14:19:55,627 INFO L425 ceAbstractionStarter]: For program point L71(line 71) no Hoare annotation was computed. [2018-11-18 14:19:55,627 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 71) no Hoare annotation was computed. [2018-11-18 14:19:55,627 INFO L421 ceAbstractionStarter]: At program point L70(line 70) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~res~0 (fp.add roundNearestTiesToEven .cse0 .cse0)) (= main_~x~0 .cse0))) [2018-11-18 14:19:55,628 INFO L425 ceAbstractionStarter]: For program point L70-1(lines 70 73) no Hoare annotation was computed. [2018-11-18 14:19:55,629 INFO L421 ceAbstractionStarter]: At program point L67(line 67) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2018-11-18 14:19:55,629 INFO L425 ceAbstractionStarter]: For program point L67-1(line 67) no Hoare annotation was computed. [2018-11-18 14:19:55,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:19:55 BoogieIcfgContainer [2018-11-18 14:19:55,637 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 14:19:55,637 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:19:55,637 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:19:55,637 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:19:55,638 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:19:51" (3/4) ... [2018-11-18 14:19:55,640 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 14:19:55,645 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-18 14:19:55,645 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 14:19:55,645 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_float [2018-11-18 14:19:55,645 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 14:19:55,649 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 14:19:55,649 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 14:19:55,649 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 14:19:55,669 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 14:19:55,689 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_26b4c96f-c91c-4968-a8c8-6b88f94b7154/bin-2019/utaipan/witness.graphml [2018-11-18 14:19:55,690 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:19:55,690 INFO L168 Benchmark]: Toolchain (without parser) took 4616.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 949.7 MB in the beginning and 946.2 MB in the end (delta: 3.6 MB). Peak memory consumption was 142.0 MB. Max. memory is 11.5 GB. [2018-11-18 14:19:55,692 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:19:55,692 INFO L168 Benchmark]: CACSL2BoogieTranslator took 193.13 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 14:19:55,692 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.15 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:19:55,692 INFO L168 Benchmark]: Boogie Preprocessor took 27.83 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:19:55,693 INFO L168 Benchmark]: RCFGBuilder took 597.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -175.8 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:19:55,693 INFO L168 Benchmark]: TraceAbstraction took 3723.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 952.7 MB in the end (delta: 156.7 MB). Peak memory consumption was 156.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:19:55,693 INFO L168 Benchmark]: Witness Printer took 52.42 ms. Allocated memory is still 1.2 GB. Free memory was 952.7 MB in the beginning and 946.2 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2018-11-18 14:19:55,695 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 193.13 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 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 18.15 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.83 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 597.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -175.8 MB). Peak memory consumption was 15.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3723.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 952.7 MB in the end (delta: 156.7 MB). Peak memory consumption was 156.7 MB. Max. memory is 11.5 GB. * Witness Printer took 52.42 ms. Allocated memory is still 1.2 GB. Free memory was 952.7 MB in the beginning and 946.2 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 71]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. SAFE Result, 3.6s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 2.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 122 SDtfs, 108 SDslu, 423 SDs, 0 SdLazy, 221 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s 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, 0.6s 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...