./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0610_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_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0610_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 95131fbb90a45f134b236581750b2f1a3cba4d8c ............................................................................................................................................................................................................................................................................................................................................................... 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_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0610_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 95131fbb90a45f134b236581750b2f1a3cba4d8c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 14:52:12,203 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:52:12,204 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:52:12,214 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:52:12,214 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:52:12,215 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:52:12,216 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:52:12,217 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:52:12,218 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:52:12,219 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:52:12,220 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:52:12,220 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:52:12,221 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:52:12,221 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:52:12,222 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:52:12,223 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:52:12,223 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:52:12,225 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:52:12,226 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:52:12,227 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:52:12,228 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:52:12,228 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:52:12,230 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:52:12,230 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:52:12,230 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:52:12,231 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:52:12,231 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:52:12,232 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:52:12,232 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:52:12,233 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:52:12,233 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:52:12,234 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:52:12,234 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:52:12,234 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:52:12,235 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:52:12,235 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:52:12,236 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 14:52:12,245 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:52:12,245 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:52:12,246 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:52:12,246 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 14:52:12,246 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 14:52:12,246 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 14:52:12,247 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 14:52:12,247 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:52:12,247 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:52:12,247 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:52:12,247 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:52:12,247 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:52:12,247 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:52:12,248 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:52:12,248 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:52:12,248 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:52:12,248 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:52:12,248 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:52:12,248 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:52:12,248 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:52:12,249 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:52:12,249 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:52:12,249 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:52:12,249 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:52:12,249 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:52:12,249 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:52:12,249 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:52:12,250 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 14:52:12,250 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:52:12,250 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 14:52:12,250 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_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer 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 -> Automizer 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 -> 95131fbb90a45f134b236581750b2f1a3cba4d8c [2018-11-18 14:52:12,274 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:52:12,281 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:52:12,283 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:52:12,284 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:52:12,284 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:52:12,285 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0610_true-unreach-call.c [2018-11-18 14:52:12,319 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer/data/cdd68c14d/953a4f1e865a47a3a44fd4c87af91100/FLAG09971259f [2018-11-18 14:52:12,718 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:52:12,718 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/sv-benchmarks/c/float-newlib/float_req_bl_0610_true-unreach-call.c [2018-11-18 14:52:12,722 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer/data/cdd68c14d/953a4f1e865a47a3a44fd4c87af91100/FLAG09971259f [2018-11-18 14:52:12,732 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer/data/cdd68c14d/953a4f1e865a47a3a44fd4c87af91100 [2018-11-18 14:52:12,734 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:52:12,735 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 14:52:12,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:52:12,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:52:12,737 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:52:12,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:52:12" (1/1) ... [2018-11-18 14:52:12,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e013f19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:12, skipping insertion in model container [2018-11-18 14:52:12,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:52:12" (1/1) ... [2018-11-18 14:52:12,745 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:52:12,758 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:52:12,882 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:52:12,886 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:52:12,913 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:52:12,967 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:52:12,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:12 WrapperNode [2018-11-18 14:52:12,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:52:12,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:52:12,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:52:12,968 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:52:12,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:12" (1/1) ... [2018-11-18 14:52:12,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:12" (1/1) ... [2018-11-18 14:52:12,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:12" (1/1) ... [2018-11-18 14:52:12,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:12" (1/1) ... [2018-11-18 14:52:13,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:12" (1/1) ... [2018-11-18 14:52:13,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:12" (1/1) ... [2018-11-18 14:52:13,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:12" (1/1) ... [2018-11-18 14:52:13,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:52:13,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:52:13,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:52:13,011 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:52:13,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer/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 14:52:13,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:52:13,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:52:13,049 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 14:52:13,049 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-18 14:52:13,049 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-11-18 14:52:13,049 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:52:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 14:52:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-18 14:52:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 14:52:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-18 14:52:13,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:52:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 14:52:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 14:52:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 14:52:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 14:52:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 14:52:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-11-18 14:52:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:52:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:52:13,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-18 14:52:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:52:13,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 14:52:13,327 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:52:13,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:52:13 BoogieIcfgContainer [2018-11-18 14:52:13,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:52:13,328 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:52:13,328 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:52:13,330 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:52:13,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:52:12" (1/3) ... [2018-11-18 14:52:13,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b7a9277 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:52:13, skipping insertion in model container [2018-11-18 14:52:13,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:12" (2/3) ... [2018-11-18 14:52:13,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b7a9277 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:52:13, skipping insertion in model container [2018-11-18 14:52:13,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:52:13" (3/3) ... [2018-11-18 14:52:13,332 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610_true-unreach-call.c [2018-11-18 14:52:13,337 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:52:13,343 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:52:13,356 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:52:13,381 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:52:13,381 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:52:13,381 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:52:13,381 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:52:13,382 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:52:13,382 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:52:13,382 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:52:13,382 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:52:13,382 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:52:13,396 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-11-18 14:52:13,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 14:52:13,400 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:52:13,401 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 14:52:13,403 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:52:13,406 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:52:13,406 INFO L82 PathProgramCache]: Analyzing trace with hash 302216928, now seen corresponding path program 1 times [2018-11-18 14:52:13,407 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:52:13,408 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:52:13,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:52:13,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:52:13,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:52:13,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:52:13,526 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 14:52:13,528 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:52:13,528 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:52:13,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 14:52:13,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 14:52:13,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:52:13,539 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2018-11-18 14:52:13,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:52:13,555 INFO L93 Difference]: Finished difference Result 92 states and 127 transitions. [2018-11-18 14:52:13,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 14:52:13,557 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-18 14:52:13,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:52:13,565 INFO L225 Difference]: With dead ends: 92 [2018-11-18 14:52:13,565 INFO L226 Difference]: Without dead ends: 46 [2018-11-18 14:52:13,568 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 14:52:13,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-11-18 14:52:13,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-11-18 14:52:13,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-11-18 14:52:13,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 56 transitions. [2018-11-18 14:52:13,598 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 56 transitions. Word has length 22 [2018-11-18 14:52:13,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:52:13,599 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 56 transitions. [2018-11-18 14:52:13,599 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 14:52:13,599 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2018-11-18 14:52:13,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 14:52:13,599 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:52:13,599 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 14:52:13,600 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:52:13,600 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:52:13,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1861643029, now seen corresponding path program 1 times [2018-11-18 14:52:13,600 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:52:13,600 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:52:13,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:52:13,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:52:13,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:52:13,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:52:13,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:52:13,677 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 14:52:13,695 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 69 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-11-18 14:52:13,696 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 49 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-11-18 14:52:13,696 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 55 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-11-18 14:52:13,696 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 61 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-11-18 14:52:13,696 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 53 could not be translated for associated CType ARRAY#_11_~FLOAT# [2018-11-18 14:52:13,696 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 57 could not be translated for associated CType ARRAY#_11_~FLOAT# [2018-11-18 14:52:13,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:52:13 BoogieIcfgContainer [2018-11-18 14:52:13,704 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 14:52:13,705 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:52:13,705 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:52:13,705 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:52:13,705 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:52:13" (3/4) ... [2018-11-18 14:52:13,708 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 14:52:13,708 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:52:13,708 INFO L168 Benchmark]: Toolchain (without parser) took 974.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -117.7 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2018-11-18 14:52:13,709 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:52:13,709 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -186.7 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. [2018-11-18 14:52:13,710 INFO L168 Benchmark]: Boogie Preprocessor took 43.09 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:52:13,710 INFO L168 Benchmark]: RCFGBuilder took 316.90 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: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2018-11-18 14:52:13,711 INFO L168 Benchmark]: TraceAbstraction took 375.95 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: 37.3 MB). Peak memory consumption was 37.3 MB. Max. memory is 11.5 GB. [2018-11-18 14:52:13,711 INFO L168 Benchmark]: Witness Printer took 3.20 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 14:52:13,713 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 232.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -186.7 MB). Peak memory consumption was 28.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.09 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 316.90 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: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 375.95 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: 37.3 MB). Peak memory consumption was 37.3 MB. Max. memory is 11.5 GB. * Witness Printer took 3.20 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 69 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 49 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 55 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 61 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 53 could not be translated for associated CType ARRAY#_11_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 57 could not be translated for associated CType ARRAY#_11_~FLOAT# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 132]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 15, overapproximation of someUnaryDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 65, overapproximation of someBinaryArithmeticFLOAToperation at line 68. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; [L32-L37] FCALL static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L39-L44] FCALL static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L46-L50] FCALL static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L52-L54] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; VAL [\old(aT_atan)=null, \old(aT_atan)=null, \old(atanhi_atan)=null, \old(atanhi_atan)=null, \old(atanlo_atan)=null, \old(atanlo_atan)=null, \old(huge_atan)=67, \old(huge_floor)=62, \old(one_atan)=58, \old(pi)=63, \old(pi_o_2)=45, \old(pi_o_4)=60, aT_atan={54:0}, atanhi_atan={56:0}, atanlo_atan={46:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L127] float x = 0.0f / 0.0f; VAL [aT_atan={54:0}, atanhi_atan={56:0}, atanlo_atan={46:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L128] CALL, EXPR atan_float(x) VAL [\old(x)=48, aT_atan={54:0}, atanhi_atan={56:0}, atanlo_atan={46:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L57] float w, s1, s2, z; [L58] __int32_t ix, hx, id; VAL [\old(x)=48, aT_atan={54:0}, atanhi_atan={56:0}, atanlo_atan={46:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=48] [L61] FCALL ieee_float_shape_type gf_u; [L62] FCALL gf_u.value = (x) [L63] EXPR, FCALL gf_u.word [L63] (hx) = gf_u.word [L64] COND FALSE !(0) VAL [\old(x)=48, aT_atan={54:0}, atanhi_atan={56:0}, atanlo_atan={46:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=3, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=48] [L65] ix = hx & 0x7fffffff VAL [\old(x)=48, aT_atan={54:0}, atanhi_atan={56:0}, atanlo_atan={46:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=3, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=48] [L66] COND TRUE ix >= 0x50800000 VAL [\old(x)=48, aT_atan={54:0}, atanhi_atan={56:0}, atanlo_atan={46:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=3, ix=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=48] [L67] COND TRUE ((ix) > 0x7f800000L) [L68] RET return x + x; VAL [\old(x)=48, aT_atan={54:0}, atanhi_atan={56:0}, atanlo_atan={46:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=3, ix=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=48] [L128] EXPR atan_float(x) VAL [aT_atan={54:0}, atan_float(x)=52, atanhi_atan={56:0}, atanlo_atan={46:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=48] [L128] float res = atan_float(x); [L131] CALL, EXPR isnan_float(res) VAL [\old(x)=52, aT_atan={54:0}, atanhi_atan={56:0}, atanlo_atan={46:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L15] RET return x != x; VAL [\old(x)=52, \result=0, aT_atan={54:0}, atanhi_atan={56:0}, atanlo_atan={46:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=52] [L131] EXPR isnan_float(res) VAL [aT_atan={54:0}, atanhi_atan={56:0}, atanlo_atan={46:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, isnan_float(res)=0, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=52, x=48] [L131] COND TRUE !isnan_float(res) [L132] __VERIFIER_error() VAL [aT_atan={54:0}, atanhi_atan={56:0}, atanlo_atan={46:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=52, x=48] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 50 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 60 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=50occurred 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 14:52:15,118 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:52:15,119 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:52:15,127 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:52:15,127 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:52:15,128 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:52:15,129 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:52:15,130 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:52:15,131 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:52:15,131 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:52:15,132 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:52:15,133 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:52:15,133 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:52:15,134 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:52:15,135 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:52:15,135 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:52:15,136 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:52:15,138 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:52:15,139 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:52:15,140 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:52:15,141 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:52:15,142 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:52:15,143 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:52:15,143 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:52:15,144 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:52:15,145 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:52:15,146 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:52:15,146 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:52:15,147 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:52:15,147 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:52:15,148 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:52:15,149 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:52:15,149 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:52:15,149 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:52:15,150 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:52:15,150 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:52:15,151 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 14:52:15,161 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:52:15,161 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:52:15,162 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:52:15,162 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 14:52:15,162 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 14:52:15,162 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 14:52:15,163 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 14:52:15,163 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:52:15,163 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:52:15,163 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:52:15,163 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:52:15,163 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:52:15,163 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:52:15,163 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:52:15,163 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 14:52:15,164 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 14:52:15,164 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:52:15,165 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:52:15,165 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:52:15,165 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:52:15,165 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:52:15,165 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:52:15,165 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:52:15,166 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:52:15,166 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:52:15,166 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:52:15,166 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:52:15,166 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:52:15,166 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 14:52:15,166 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:52:15,166 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 14:52:15,166 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 14:52:15,166 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_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer 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 -> Automizer 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 -> 95131fbb90a45f134b236581750b2f1a3cba4d8c [2018-11-18 14:52:15,199 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:52:15,208 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:52:15,211 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:52:15,212 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:52:15,212 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:52:15,213 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0610_true-unreach-call.c [2018-11-18 14:52:15,256 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer/data/af0a5533f/173459d3443d4071b03653f2f98c4294/FLAG8f6dcc8bf [2018-11-18 14:52:15,585 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:52:15,586 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/sv-benchmarks/c/float-newlib/float_req_bl_0610_true-unreach-call.c [2018-11-18 14:52:15,590 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer/data/af0a5533f/173459d3443d4071b03653f2f98c4294/FLAG8f6dcc8bf [2018-11-18 14:52:16,014 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer/data/af0a5533f/173459d3443d4071b03653f2f98c4294 [2018-11-18 14:52:16,016 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:52:16,017 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 14:52:16,018 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:52:16,018 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:52:16,020 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:52:16,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:52:16" (1/1) ... [2018-11-18 14:52:16,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c1a3979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:16, skipping insertion in model container [2018-11-18 14:52:16,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:52:16" (1/1) ... [2018-11-18 14:52:16,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:52:16,050 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:52:16,189 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:52:16,197 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:52:16,226 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:52:16,246 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:52:16,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:16 WrapperNode [2018-11-18 14:52:16,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:52:16,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:52:16,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:52:16,247 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:52:16,255 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:16" (1/1) ... [2018-11-18 14:52:16,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:16" (1/1) ... [2018-11-18 14:52:16,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:16" (1/1) ... [2018-11-18 14:52:16,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:16" (1/1) ... [2018-11-18 14:52:16,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:16" (1/1) ... [2018-11-18 14:52:16,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:16" (1/1) ... [2018-11-18 14:52:16,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:16" (1/1) ... [2018-11-18 14:52:16,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:52:16,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:52:16,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:52:16,338 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:52:16,339 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer/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 14:52:16,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:52:16,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:52:16,375 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 14:52:16,375 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-18 14:52:16,375 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-11-18 14:52:16,375 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:52:16,375 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 14:52:16,376 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-18 14:52:16,376 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 14:52:16,376 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-18 14:52:16,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:52:16,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 14:52:16,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 14:52:16,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 14:52:16,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 14:52:16,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 14:52:16,377 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-11-18 14:52:16,377 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:52:16,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:52:16,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-11-18 14:52:16,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:52:16,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 14:52:16,976 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:52:16,999 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:52:23,532 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:52:23,551 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:52:23,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:52:23 BoogieIcfgContainer [2018-11-18 14:52:23,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:52:23,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:52:23,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:52:23,554 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:52:23,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:52:16" (1/3) ... [2018-11-18 14:52:23,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43a94ed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:52:23, skipping insertion in model container [2018-11-18 14:52:23,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:16" (2/3) ... [2018-11-18 14:52:23,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43a94ed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:52:23, skipping insertion in model container [2018-11-18 14:52:23,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:52:23" (3/3) ... [2018-11-18 14:52:23,556 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610_true-unreach-call.c [2018-11-18 14:52:23,562 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:52:23,568 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:52:23,577 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:52:23,597 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:52:23,598 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:52:23,598 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:52:23,598 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:52:23,598 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:52:23,598 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:52:23,598 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:52:23,598 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:52:23,598 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:52:23,609 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2018-11-18 14:52:23,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 14:52:23,614 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:52:23,614 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 14:52:23,616 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:52:23,619 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:52:23,620 INFO L82 PathProgramCache]: Analyzing trace with hash 916478181, now seen corresponding path program 1 times [2018-11-18 14:52:23,623 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:52:23,623 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer/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 14:52:23,630 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:52:23,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:52:23,761 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:52:23,771 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 14:52:23,772 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:52:23,782 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:52:23,782 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:52:23,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 14:52:23,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 14:52:23,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:52:23,798 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2018-11-18 14:52:23,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:52:23,815 INFO L93 Difference]: Finished difference Result 90 states and 125 transitions. [2018-11-18 14:52:23,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 14:52:23,816 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-18 14:52:23,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:52:23,824 INFO L225 Difference]: With dead ends: 90 [2018-11-18 14:52:23,825 INFO L226 Difference]: Without dead ends: 45 [2018-11-18 14:52:23,827 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 14:52:23,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-18 14:52:23,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-11-18 14:52:23,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-18 14:52:23,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 55 transitions. [2018-11-18 14:52:23,854 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 55 transitions. Word has length 21 [2018-11-18 14:52:23,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:52:23,854 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 55 transitions. [2018-11-18 14:52:23,855 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 14:52:23,855 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2018-11-18 14:52:23,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 14:52:23,856 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:52:23,857 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 14:52:23,857 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:52:23,857 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:52:23,857 INFO L82 PathProgramCache]: Analyzing trace with hash -516222211, now seen corresponding path program 1 times [2018-11-18 14:52:23,858 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:52:23,858 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer/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 14:52:23,870 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:52:23,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:52:23,990 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:52:24,488 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 14:52:24,489 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:52:24,501 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:52:24,501 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 14:52:24,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 14:52:24,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 14:52:24,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-18 14:52:24,503 INFO L87 Difference]: Start difference. First operand 45 states and 55 transitions. Second operand 9 states. [2018-11-18 14:52:24,919 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-18 14:52:34,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:52:34,546 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2018-11-18 14:52:34,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 14:52:34,546 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-11-18 14:52:34,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:52:34,548 INFO L225 Difference]: With dead ends: 55 [2018-11-18 14:52:34,548 INFO L226 Difference]: Without dead ends: 48 [2018-11-18 14:52:34,549 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-18 14:52:34,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-11-18 14:52:34,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 45. [2018-11-18 14:52:34,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-18 14:52:34,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 54 transitions. [2018-11-18 14:52:34,555 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 54 transitions. Word has length 22 [2018-11-18 14:52:34,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:52:34,555 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 54 transitions. [2018-11-18 14:52:34,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 14:52:34,555 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2018-11-18 14:52:34,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 14:52:34,556 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:52:34,556 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 14:52:34,556 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:52:34,557 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:52:34,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1808109440, now seen corresponding path program 1 times [2018-11-18 14:52:34,557 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:52:34,557 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer/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 14:52:34,560 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:52:34,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:52:34,674 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:52:34,798 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 14:52:34,798 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:52:34,807 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:52:34,808 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 14:52:34,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 14:52:34,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 14:52:34,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-11-18 14:52:34,808 INFO L87 Difference]: Start difference. First operand 45 states and 54 transitions. Second operand 8 states. [2018-11-18 14:52:43,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:52:43,678 INFO L93 Difference]: Finished difference Result 58 states and 66 transitions. [2018-11-18 14:52:43,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 14:52:43,729 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-11-18 14:52:43,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:52:43,730 INFO L225 Difference]: With dead ends: 58 [2018-11-18 14:52:43,730 INFO L226 Difference]: Without dead ends: 46 [2018-11-18 14:52:43,731 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-11-18 14:52:43,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-11-18 14:52:43,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 43. [2018-11-18 14:52:43,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-18 14:52:43,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2018-11-18 14:52:43,737 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 23 [2018-11-18 14:52:43,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:52:43,737 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2018-11-18 14:52:43,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 14:52:43,737 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2018-11-18 14:52:43,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 14:52:43,738 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:52:43,738 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:52:43,738 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:52:43,738 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:52:43,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1679542394, now seen corresponding path program 1 times [2018-11-18 14:52:43,739 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:52:43,739 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer/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 14:52:43,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:52:43,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:52:43,849 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:52:43,913 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 14:52:43,914 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:52:43,925 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:52:43,925 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 14:52:43,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:52:43,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:52:43,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:52:43,926 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand 7 states. [2018-11-18 14:52:52,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:52:52,385 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2018-11-18 14:52:52,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 14:52:52,435 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-18 14:52:52,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:52:52,436 INFO L225 Difference]: With dead ends: 54 [2018-11-18 14:52:52,436 INFO L226 Difference]: Without dead ends: 44 [2018-11-18 14:52:52,436 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 14:52:52,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-18 14:52:52,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2018-11-18 14:52:52,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-18 14:52:52,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2018-11-18 14:52:52,440 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 24 [2018-11-18 14:52:52,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:52:52,441 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2018-11-18 14:52:52,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 14:52:52,441 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2018-11-18 14:52:52,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 14:52:52,441 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:52:52,441 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 14:52:52,441 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:52:52,442 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:52:52,442 INFO L82 PathProgramCache]: Analyzing trace with hash -625107464, now seen corresponding path program 1 times [2018-11-18 14:52:52,442 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:52:52,442 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-18 14:52:52,445 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:52:53,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:52:53,429 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:52:53,498 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 14:52:53,499 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:52:53,519 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:52:53,519 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 14:52:53,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:52:53,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:52:53,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:52:53,520 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand 7 states. [2018-11-18 14:53:03,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:53:03,493 INFO L93 Difference]: Finished difference Result 58 states and 65 transitions. [2018-11-18 14:53:03,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 14:53:03,544 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-18 14:53:03,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:53:03,545 INFO L225 Difference]: With dead ends: 58 [2018-11-18 14:53:03,545 INFO L226 Difference]: Without dead ends: 40 [2018-11-18 14:53:03,546 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 14:53:03,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-18 14:53:03,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-11-18 14:53:03,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-18 14:53:03,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2018-11-18 14:53:03,550 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 26 [2018-11-18 14:53:03,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:53:03,550 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2018-11-18 14:53:03,550 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 14:53:03,550 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2018-11-18 14:53:03,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-18 14:53:03,551 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:53:03,551 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:53:03,551 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:53:03,551 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:53:03,551 INFO L82 PathProgramCache]: Analyzing trace with hash -133098501, now seen corresponding path program 1 times [2018-11-18 14:53:03,552 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:53:03,552 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-18 14:53:03,555 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:53:04,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:53:04,747 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:53:04,754 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 14:53:04,755 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:53:04,777 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:53:04,777 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:53:04,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 14:53:04,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:53:04,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:53:04,778 INFO L87 Difference]: Start difference. First operand 40 states and 42 transitions. Second operand 3 states. [2018-11-18 14:53:08,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:53:08,765 INFO L93 Difference]: Finished difference Result 56 states and 59 transitions. [2018-11-18 14:53:08,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:53:08,781 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2018-11-18 14:53:08,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:53:08,782 INFO L225 Difference]: With dead ends: 56 [2018-11-18 14:53:08,782 INFO L226 Difference]: Without dead ends: 46 [2018-11-18 14:53:08,783 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:53:08,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-11-18 14:53:08,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2018-11-18 14:53:08,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-18 14:53:08,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 44 transitions. [2018-11-18 14:53:08,788 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 44 transitions. Word has length 36 [2018-11-18 14:53:08,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:53:08,789 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 44 transitions. [2018-11-18 14:53:08,789 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 14:53:08,789 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 44 transitions. [2018-11-18 14:53:08,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-18 14:53:08,789 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:53:08,789 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:53:08,789 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:53:08,789 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:53:08,790 INFO L82 PathProgramCache]: Analyzing trace with hash 1181463803, now seen corresponding path program 1 times [2018-11-18 14:53:08,790 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:53:08,790 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-11-18 14:53:08,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:53:09,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:53:10,007 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:53:10,079 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 14:53:10,080 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:53:10,099 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:53:10,100 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 14:53:10,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:53:10,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:53:10,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:53:10,100 INFO L87 Difference]: Start difference. First operand 42 states and 44 transitions. Second operand 7 states. [2018-11-18 14:53:21,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:53:21,121 INFO L93 Difference]: Finished difference Result 54 states and 56 transitions. [2018-11-18 14:53:21,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 14:53:21,122 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2018-11-18 14:53:21,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:53:21,122 INFO L225 Difference]: With dead ends: 54 [2018-11-18 14:53:21,122 INFO L226 Difference]: Without dead ends: 39 [2018-11-18 14:53:21,123 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 14:53:21,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-18 14:53:21,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-11-18 14:53:21,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-18 14:53:21,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 39 transitions. [2018-11-18 14:53:21,126 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 39 transitions. Word has length 36 [2018-11-18 14:53:21,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:53:21,126 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 39 transitions. [2018-11-18 14:53:21,126 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 14:53:21,126 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 39 transitions. [2018-11-18 14:53:21,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-18 14:53:21,127 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:53:21,127 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:53:21,127 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:53:21,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:53:21,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1161936118, now seen corresponding path program 1 times [2018-11-18 14:53:21,128 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:53:21,128 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-11-18 14:53:21,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:53:22,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:53:22,377 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:53:22,444 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 14:53:22,444 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:53:22,472 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:53:22,472 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 14:53:22,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:53:22,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:53:22,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:53:22,473 INFO L87 Difference]: Start difference. First operand 39 states and 39 transitions. Second operand 7 states. [2018-11-18 14:53:28,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:53:28,704 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2018-11-18 14:53:28,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 14:53:28,705 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2018-11-18 14:53:28,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:53:28,705 INFO L225 Difference]: With dead ends: 39 [2018-11-18 14:53:28,706 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 14:53:28,706 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 14:53:28,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 14:53:28,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 14:53:28,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 14:53:28,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 14:53:28,706 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2018-11-18 14:53:28,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:53:28,707 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 14:53:28,707 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 14:53:28,707 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 14:53:28,707 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 14:53:28,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 14:53:28,792 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 15) no Hoare annotation was computed. [2018-11-18 14:53:28,792 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 15) the Hoare annotation is: true [2018-11-18 14:53:28,792 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 15) no Hoare annotation was computed. [2018-11-18 14:53:28,792 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 14:53:28,792 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 14:53:28,792 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 14:53:28,792 INFO L425 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 17 30) no Hoare annotation was computed. [2018-11-18 14:53:28,792 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2018-11-18 14:53:28,792 INFO L428 ceAbstractionStarter]: At program point L19-3(lines 19 23) the Hoare annotation is: true [2018-11-18 14:53:28,792 INFO L425 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 17 30) no Hoare annotation was computed. [2018-11-18 14:53:28,792 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 28) no Hoare annotation was computed. [2018-11-18 14:53:28,793 INFO L428 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 17 30) the Hoare annotation is: true [2018-11-18 14:53:28,793 INFO L425 ceAbstractionStarter]: For program point L24-2(lines 17 30) no Hoare annotation was computed. [2018-11-18 14:53:28,793 INFO L425 ceAbstractionStarter]: For program point L24-3(lines 24 28) no Hoare annotation was computed. [2018-11-18 14:53:28,793 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 14:53:28,793 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 14:53:28,793 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 14:53:28,793 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 14:53:28,793 INFO L421 ceAbstractionStarter]: At program point L128(line 128) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2018-11-18 14:53:28,793 INFO L425 ceAbstractionStarter]: For program point L128-1(line 128) no Hoare annotation was computed. [2018-11-18 14:53:28,793 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 120 137) the Hoare annotation is: true [2018-11-18 14:53:28,793 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 120 137) no Hoare annotation was computed. [2018-11-18 14:53:28,793 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 120 137) no Hoare annotation was computed. [2018-11-18 14:53:28,793 INFO L425 ceAbstractionStarter]: For program point L132(line 132) no Hoare annotation was computed. [2018-11-18 14:53:28,794 INFO L421 ceAbstractionStarter]: At program point L131(line 131) 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 14:53:28,794 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 132) no Hoare annotation was computed. [2018-11-18 14:53:28,794 INFO L425 ceAbstractionStarter]: For program point L131-1(lines 131 134) no Hoare annotation was computed. [2018-11-18 14:53:28,794 INFO L428 ceAbstractionStarter]: At program point atan_floatENTRY(lines 56 118) the Hoare annotation is: true [2018-11-18 14:53:28,794 INFO L425 ceAbstractionStarter]: For program point atan_floatFINAL(lines 56 118) no Hoare annotation was computed. [2018-11-18 14:53:28,794 INFO L425 ceAbstractionStarter]: For program point L60-1(lines 60 64) no Hoare annotation was computed. [2018-11-18 14:53:28,794 INFO L421 ceAbstractionStarter]: At program point L60-3(lines 60 64) the Hoare annotation is: (= |atan_float_#in~x| atan_float_~x) [2018-11-18 14:53:28,794 INFO L425 ceAbstractionStarter]: For program point L60-4(lines 60 64) no Hoare annotation was computed. [2018-11-18 14:53:28,794 INFO L421 ceAbstractionStarter]: At program point L81(line 81) the Hoare annotation is: (and (exists ((atan_float_~hx~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) atan_float_~hx~0) ((_ extract 30 23) atan_float_~hx~0) ((_ extract 22 0) atan_float_~hx~0)) |atan_float_#in~x|) (= (bvand (_ bv2147483647 32) atan_float_~hx~0) atan_float_~ix~1))) (= (fp ((_ extract 31 31) atan_float_~hx~0) ((_ extract 30 23) atan_float_~hx~0) ((_ extract 22 0) atan_float_~hx~0)) |atan_float_#in~x|) (exists ((atan_float_~hx~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) atan_float_~hx~0) ((_ extract 30 23) atan_float_~hx~0) ((_ extract 22 0) atan_float_~hx~0)) |atan_float_#in~x|) (not (bvsge (bvand (_ bv2147483647 32) atan_float_~hx~0) (_ bv1350565888 32))))) (= |atan_float_#in~x| atan_float_~x)) [2018-11-18 14:53:28,794 INFO L425 ceAbstractionStarter]: For program point L81-1(line 81) no Hoare annotation was computed. [2018-11-18 14:53:28,794 INFO L425 ceAbstractionStarter]: For program point L69(lines 69 72) no Hoare annotation was computed. [2018-11-18 14:53:28,795 INFO L425 ceAbstractionStarter]: For program point L82(lines 82 98) no Hoare annotation was computed. [2018-11-18 14:53:28,795 INFO L425 ceAbstractionStarter]: For program point L74(lines 74 99) no Hoare annotation was computed. [2018-11-18 14:53:28,795 INFO L425 ceAbstractionStarter]: For program point L66(lines 66 73) no Hoare annotation was computed. [2018-11-18 14:53:28,795 INFO L425 ceAbstractionStarter]: For program point L91(lines 91 97) no Hoare annotation was computed. [2018-11-18 14:53:28,795 INFO L425 ceAbstractionStarter]: For program point L91-2(lines 74 99) no Hoare annotation was computed. [2018-11-18 14:53:28,795 INFO L425 ceAbstractionStarter]: For program point L116(line 116) no Hoare annotation was computed. [2018-11-18 14:53:28,795 INFO L425 ceAbstractionStarter]: For program point L83(lines 83 89) no Hoare annotation was computed. [2018-11-18 14:53:28,795 INFO L425 ceAbstractionStarter]: For program point L116-2(line 116) no Hoare annotation was computed. [2018-11-18 14:53:28,795 INFO L425 ceAbstractionStarter]: For program point L112(lines 112 117) no Hoare annotation was computed. [2018-11-18 14:53:28,795 INFO L425 ceAbstractionStarter]: For program point L75(lines 75 78) no Hoare annotation was computed. [2018-11-18 14:53:28,795 INFO L425 ceAbstractionStarter]: For program point L75-2(lines 75 78) no Hoare annotation was computed. [2018-11-18 14:53:28,795 INFO L425 ceAbstractionStarter]: For program point L67(lines 67 68) no Hoare annotation was computed. [2018-11-18 14:53:28,795 INFO L425 ceAbstractionStarter]: For program point atan_floatEXIT(lines 56 118) no Hoare annotation was computed. [2018-11-18 14:53:28,795 INFO L425 ceAbstractionStarter]: For program point L76(lines 76 77) no Hoare annotation was computed. [2018-11-18 14:53:28,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:53:28 BoogieIcfgContainer [2018-11-18 14:53:28,804 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 14:53:28,804 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:53:28,804 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:53:28,804 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:53:28,805 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:52:23" (3/4) ... [2018-11-18 14:53:28,807 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 14:53:28,811 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-18 14:53:28,811 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 14:53:28,811 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-11-18 14:53:28,811 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 14:53:28,811 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2018-11-18 14:53:28,816 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2018-11-18 14:53:28,816 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2018-11-18 14:53:28,817 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 14:53:28,817 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 14:53:28,832 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 14:53:28,854 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_173ec180-966d-4831-83e0-708ddeb5c8d3/bin-2019/uautomizer/witness.graphml [2018-11-18 14:53:28,854 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:53:28,855 INFO L168 Benchmark]: Toolchain (without parser) took 72838.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 202.4 MB). Free memory was 949.7 MB in the beginning and 1.2 GB in the end (delta: -203.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:53:28,855 INFO L168 Benchmark]: CDTParser took 0.16 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 14:53:28,856 INFO L168 Benchmark]: CACSL2BoogieTranslator took 228.69 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 14:53:28,856 INFO L168 Benchmark]: Boogie Preprocessor took 90.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -198.3 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:53:28,856 INFO L168 Benchmark]: RCFGBuilder took 7213.45 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: 32.1 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. [2018-11-18 14:53:28,856 INFO L168 Benchmark]: TraceAbstraction took 65251.85 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 58.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -53.5 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. [2018-11-18 14:53:28,857 INFO L168 Benchmark]: Witness Printer took 50.18 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:53:28,858 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 228.69 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 Preprocessor took 90.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -198.3 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 7213.45 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: 32.1 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 65251.85 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 58.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -53.5 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. * Witness Printer took 50.18 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 132]: 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: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 49 locations, 1 error locations. SAFE Result, 65.2s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 58.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 310 SDtfs, 268 SDslu, 970 SDs, 0 SdLazy, 329 SolverSat, 20 SolverUnsat, 15 SolverUnknown, 0 SolverNotchecked, 55.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 243 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred 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, 8 MinimizatonAttempts, 11 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 21 PreInvPairs, 25 NumberOfFragments, 82 HoareAnnotationTreeSize, 21 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 4.5s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 226 NumberOfCodeBlocks, 226 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 218 ConstructedInterpolants, 41 QuantifiedInterpolants, 31713 SizeOfPredicates, 25 NumberOfNonLiveVariables, 1058 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...