./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1071_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_54a2159f-4207-49b2-b648-e0a04d3294a0/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_54a2159f-4207-49b2-b648-e0a04d3294a0/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_54a2159f-4207-49b2-b648-e0a04d3294a0/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_54a2159f-4207-49b2-b648-e0a04d3294a0/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1071_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_54a2159f-4207-49b2-b648-e0a04d3294a0/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_54a2159f-4207-49b2-b648-e0a04d3294a0/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 cbf38875841624eee0d839935b3b6d34a59b0b20 ........................................................................................................................................................................................................................................................................................................... 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_54a2159f-4207-49b2-b648-e0a04d3294a0/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_54a2159f-4207-49b2-b648-e0a04d3294a0/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_54a2159f-4207-49b2-b648-e0a04d3294a0/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_54a2159f-4207-49b2-b648-e0a04d3294a0/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1071_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_54a2159f-4207-49b2-b648-e0a04d3294a0/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_54a2159f-4207-49b2-b648-e0a04d3294a0/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 cbf38875841624eee0d839935b3b6d34a59b0b20 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:43:24,769 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 08:43:24,771 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 08:43:24,778 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 08:43:24,779 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 08:43:24,779 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 08:43:24,780 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 08:43:24,781 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 08:43:24,782 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 08:43:24,783 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 08:43:24,784 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 08:43:24,784 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 08:43:24,784 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 08:43:24,785 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 08:43:24,786 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 08:43:24,787 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 08:43:24,787 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 08:43:24,788 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 08:43:24,790 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 08:43:24,791 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 08:43:24,792 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 08:43:24,792 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 08:43:24,794 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 08:43:24,794 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 08:43:24,794 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 08:43:24,795 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 08:43:24,796 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 08:43:24,796 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 08:43:24,797 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 08:43:24,798 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 08:43:24,798 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 08:43:24,798 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 08:43:24,799 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 08:43:24,799 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 08:43:24,799 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 08:43:24,800 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 08:43:24,800 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_54a2159f-4207-49b2-b648-e0a04d3294a0/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-18 08:43:24,810 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 08:43:24,810 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 08:43:24,811 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 08:43:24,811 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 08:43:24,811 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 08:43:24,811 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 08:43:24,811 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 08:43:24,812 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 08:43:24,812 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 08:43:24,812 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 08:43:24,812 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 08:43:24,812 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 08:43:24,812 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 08:43:24,812 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 08:43:24,812 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 08:43:24,813 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 08:43:24,813 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 08:43:24,813 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 08:43:24,813 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 08:43:24,813 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 08:43:24,813 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 08:43:24,813 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 08:43:24,813 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 08:43:24,814 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 08:43:24,814 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 08:43:24,814 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 08:43:24,814 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 08:43:24,814 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 08:43:24,814 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 08:43:24,814 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 08:43:24,815 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_54a2159f-4207-49b2-b648-e0a04d3294a0/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 -> cbf38875841624eee0d839935b3b6d34a59b0b20 [2018-11-18 08:43:24,840 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 08:43:24,849 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 08:43:24,851 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 08:43:24,852 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 08:43:24,853 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 08:43:24,853 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_54a2159f-4207-49b2-b648-e0a04d3294a0/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1071_true-unreach-call.c [2018-11-18 08:43:24,896 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_54a2159f-4207-49b2-b648-e0a04d3294a0/bin-2019/uautomizer/data/5c8982b18/4b36d786743f4057ab1bd5092345ef30/FLAG34fb68495 [2018-11-18 08:43:25,322 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 08:43:25,323 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_54a2159f-4207-49b2-b648-e0a04d3294a0/sv-benchmarks/c/float-newlib/float_req_bl_1071_true-unreach-call.c [2018-11-18 08:43:25,328 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_54a2159f-4207-49b2-b648-e0a04d3294a0/bin-2019/uautomizer/data/5c8982b18/4b36d786743f4057ab1bd5092345ef30/FLAG34fb68495 [2018-11-18 08:43:25,340 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_54a2159f-4207-49b2-b648-e0a04d3294a0/bin-2019/uautomizer/data/5c8982b18/4b36d786743f4057ab1bd5092345ef30 [2018-11-18 08:43:25,343 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 08:43:25,344 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 08:43:25,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 08:43:25,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 08:43:25,348 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 08:43:25,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:43:25" (1/1) ... [2018-11-18 08:43:25,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44c74022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:43:25, skipping insertion in model container [2018-11-18 08:43:25,351 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:43:25" (1/1) ... [2018-11-18 08:43:25,359 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 08:43:25,375 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 08:43:25,504 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:43:25,507 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 08:43:25,522 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:43:25,535 INFO L195 MainTranslator]: Completed translation [2018-11-18 08:43:25,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:43:25 WrapperNode [2018-11-18 08:43:25,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 08:43:25,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 08:43:25,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 08:43:25,535 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 08:43:25,543 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:43:25" (1/1) ... [2018-11-18 08:43:25,543 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:43:25" (1/1) ... [2018-11-18 08:43:25,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:43:25" (1/1) ... [2018-11-18 08:43:25,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:43:25" (1/1) ... [2018-11-18 08:43:25,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:43:25" (1/1) ... [2018-11-18 08:43:25,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:43:25" (1/1) ... [2018-11-18 08:43:25,562 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:43:25" (1/1) ... [2018-11-18 08:43:25,599 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 08:43:25,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 08:43:25,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 08:43:25,599 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 08:43:25,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:43:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_54a2159f-4207-49b2-b648-e0a04d3294a0/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 08:43:25,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 08:43:25,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 08:43:25,636 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-11-18 08:43:25,636 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 08:43:25,636 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 08:43:25,636 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 08:43:25,637 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-11-18 08:43:25,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 08:43:25,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 08:43:25,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 08:43:25,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 08:43:25,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 08:43:25,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 08:43:25,637 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 08:43:25,637 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 08:43:25,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 08:43:25,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 08:43:25,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 08:43:25,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-18 08:43:25,793 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 08:43:25,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:43:25 BoogieIcfgContainer [2018-11-18 08:43:25,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 08:43:25,794 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 08:43:25,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 08:43:25,797 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 08:43:25,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:43:25" (1/3) ... [2018-11-18 08:43:25,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77522dcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:43:25, skipping insertion in model container [2018-11-18 08:43:25,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:43:25" (2/3) ... [2018-11-18 08:43:25,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77522dcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:43:25, skipping insertion in model container [2018-11-18 08:43:25,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:43:25" (3/3) ... [2018-11-18 08:43:25,799 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1071_true-unreach-call.c [2018-11-18 08:43:25,805 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 08:43:25,809 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 08:43:25,820 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 08:43:25,842 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 08:43:25,843 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 08:43:25,843 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 08:43:25,843 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 08:43:25,843 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 08:43:25,843 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 08:43:25,843 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 08:43:25,843 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 08:43:25,843 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 08:43:25,855 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2018-11-18 08:43:25,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 08:43:25,859 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:43:25,859 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 08:43:25,861 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:43:25,866 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:43:25,866 INFO L82 PathProgramCache]: Analyzing trace with hash 874630046, now seen corresponding path program 1 times [2018-11-18 08:43:25,867 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:43:25,868 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:43:25,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:43:25,905 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:43:25,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:43:25,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:43:25,952 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 08:43:25,954 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:43:25,954 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 08:43:25,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 08:43:25,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 08:43:25,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 08:43:25,966 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2018-11-18 08:43:25,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:43:25,980 INFO L93 Difference]: Finished difference Result 60 states and 78 transitions. [2018-11-18 08:43:25,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 08:43:25,981 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-18 08:43:25,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:43:25,989 INFO L225 Difference]: With dead ends: 60 [2018-11-18 08:43:25,989 INFO L226 Difference]: Without dead ends: 30 [2018-11-18 08:43:25,991 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 08:43:26,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-11-18 08:43:26,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2018-11-18 08:43:26,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-11-18 08:43:26,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2018-11-18 08:43:26,015 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 22 [2018-11-18 08:43:26,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:43:26,015 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2018-11-18 08:43:26,015 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 08:43:26,016 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2018-11-18 08:43:26,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 08:43:26,016 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:43:26,017 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 08:43:26,017 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:43:26,017 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:43:26,017 INFO L82 PathProgramCache]: Analyzing trace with hash -252211823, now seen corresponding path program 1 times [2018-11-18 08:43:26,017 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 08:43:26,017 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 08:43:26,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:43:26,019 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:43:26,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 08:43:26,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:43:26,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 08:43:26,100 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 08:43:26,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:43:26 BoogieIcfgContainer [2018-11-18 08:43:26,117 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 08:43:26,117 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 08:43:26,117 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 08:43:26,117 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 08:43:26,117 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:43:25" (3/4) ... [2018-11-18 08:43:26,120 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 08:43:26,120 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 08:43:26,120 INFO L168 Benchmark]: Toolchain (without parser) took 777.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -127.8 MB). Peak memory consumption was 11.2 MB. Max. memory is 11.5 GB. [2018-11-18 08:43:26,121 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:43:26,122 INFO L168 Benchmark]: CACSL2BoogieTranslator took 190.48 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 945.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 08:43:26,122 INFO L168 Benchmark]: Boogie Preprocessor took 63.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -193.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-18 08:43:26,123 INFO L168 Benchmark]: RCFGBuilder took 194.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-11-18 08:43:26,123 INFO L168 Benchmark]: TraceAbstraction took 322.36 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-11-18 08:43:26,123 INFO L168 Benchmark]: Witness Printer took 2.98 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 08:43:26,126 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 190.48 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 945.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 63.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -193.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 194.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 322.36 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Witness Printer took 2.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 57]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 44, overapproximation of someBinaryArithmeticFLOAToperation at line 38, overapproximation of bitwiseAnd at line 19. Possible FailurePath: [L52] float x = 0.0f / 0.0f; [L53] CALL, EXPR trunc_float(x) VAL [\old(x)=6442450948] [L13] __int32_t signbit, w, exponent_less_127; VAL [\old(x)=6442450948, x=6442450948] [L15] FCALL ieee_float_shape_type gf_u; [L16] FCALL gf_u.value = (x) [L17] EXPR, FCALL gf_u.word [L17] (w) = gf_u.word [L18] COND FALSE !(0) VAL [\old(x)=6442450948, w=-2147483648, x=6442450948] [L19] signbit = w & 0x80000000 [L20] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=6442450948, exponent_less_127=255, signbit=0, w=-2147483648, x=6442450948] [L21] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=6442450948, exponent_less_127=255, signbit=0, w=-2147483648, x=6442450948] [L37] COND TRUE exponent_less_127 == 255 [L38] RET return x + x; VAL [\old(x)=6442450948, exponent_less_127=255, signbit=0, w=-2147483648, x=6442450948] [L53] EXPR trunc_float(x) VAL [trunc_float(x)=6442450946, x=6442450948] [L53] float res = trunc_float(x); [L56] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450946] [L44] RET return x != x; VAL [\old(x)=6442450946, \result=0, x=6442450946] [L56] EXPR isnan_float(res) VAL [isnan_float(res)=0, res=6442450946, x=6442450948] [L56] COND TRUE !isnan_float(res) [L57] __VERIFIER_error() VAL [res=6442450946, x=6442450948] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 34 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 36 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=34occurred 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 08:43:27,585 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 08:43:27,586 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 08:43:27,595 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 08:43:27,595 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 08:43:27,596 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 08:43:27,596 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 08:43:27,598 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 08:43:27,599 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 08:43:27,599 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 08:43:27,600 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 08:43:27,600 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 08:43:27,601 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 08:43:27,601 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 08:43:27,602 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 08:43:27,603 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 08:43:27,603 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 08:43:27,604 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 08:43:27,606 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 08:43:27,607 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 08:43:27,607 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 08:43:27,608 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 08:43:27,610 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 08:43:27,610 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 08:43:27,610 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 08:43:27,611 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 08:43:27,611 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 08:43:27,612 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 08:43:27,613 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 08:43:27,613 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 08:43:27,613 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 08:43:27,614 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 08:43:27,614 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 08:43:27,614 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 08:43:27,615 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 08:43:27,615 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 08:43:27,615 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_54a2159f-4207-49b2-b648-e0a04d3294a0/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 08:43:27,625 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 08:43:27,625 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 08:43:27,626 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 08:43:27,626 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 08:43:27,627 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 08:43:27,627 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 08:43:27,627 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 08:43:27,627 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 08:43:27,627 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 08:43:27,627 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 08:43:27,628 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 08:43:27,628 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 08:43:27,628 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 08:43:27,628 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 08:43:27,628 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 08:43:27,628 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 08:43:27,628 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 08:43:27,628 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 08:43:27,629 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 08:43:27,629 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 08:43:27,629 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 08:43:27,629 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 08:43:27,629 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 08:43:27,629 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 08:43:27,629 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 08:43:27,630 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 08:43:27,630 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 08:43:27,630 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 08:43:27,630 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 08:43:27,630 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 08:43:27,630 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 08:43:27,630 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 08:43:27,630 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_54a2159f-4207-49b2-b648-e0a04d3294a0/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 -> cbf38875841624eee0d839935b3b6d34a59b0b20 [2018-11-18 08:43:27,659 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 08:43:27,669 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 08:43:27,671 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 08:43:27,673 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 08:43:27,673 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 08:43:27,673 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_54a2159f-4207-49b2-b648-e0a04d3294a0/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1071_true-unreach-call.c [2018-11-18 08:43:27,718 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_54a2159f-4207-49b2-b648-e0a04d3294a0/bin-2019/uautomizer/data/6c6c9a448/84b90084a420432a9493ec6136be75f9/FLAG55f60aa5b [2018-11-18 08:43:28,042 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 08:43:28,042 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_54a2159f-4207-49b2-b648-e0a04d3294a0/sv-benchmarks/c/float-newlib/float_req_bl_1071_true-unreach-call.c [2018-11-18 08:43:28,046 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_54a2159f-4207-49b2-b648-e0a04d3294a0/bin-2019/uautomizer/data/6c6c9a448/84b90084a420432a9493ec6136be75f9/FLAG55f60aa5b [2018-11-18 08:43:28,476 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_54a2159f-4207-49b2-b648-e0a04d3294a0/bin-2019/uautomizer/data/6c6c9a448/84b90084a420432a9493ec6136be75f9 [2018-11-18 08:43:28,479 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 08:43:28,480 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 08:43:28,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 08:43:28,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 08:43:28,484 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 08:43:28,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:43:28" (1/1) ... [2018-11-18 08:43:28,487 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c88f263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:43:28, skipping insertion in model container [2018-11-18 08:43:28,487 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:43:28" (1/1) ... [2018-11-18 08:43:28,495 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 08:43:28,511 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 08:43:28,637 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:43:28,641 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 08:43:28,661 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 08:43:28,678 INFO L195 MainTranslator]: Completed translation [2018-11-18 08:43:28,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:43:28 WrapperNode [2018-11-18 08:43:28,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 08:43:28,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 08:43:28,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 08:43:28,680 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 08:43:28,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:43:28" (1/1) ... [2018-11-18 08:43:28,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:43:28" (1/1) ... [2018-11-18 08:43:28,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:43:28" (1/1) ... [2018-11-18 08:43:28,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:43:28" (1/1) ... [2018-11-18 08:43:28,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:43:28" (1/1) ... [2018-11-18 08:43:28,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:43:28" (1/1) ... [2018-11-18 08:43:28,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:43:28" (1/1) ... [2018-11-18 08:43:28,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 08:43:28,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 08:43:28,709 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 08:43:28,709 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 08:43:28,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:43:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_54a2159f-4207-49b2-b648-e0a04d3294a0/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 08:43:28,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 08:43:28,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 08:43:28,786 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-11-18 08:43:28,786 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 08:43:28,787 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 08:43:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 08:43:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-11-18 08:43:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 08:43:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 08:43:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 08:43:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 08:43:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 08:43:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 08:43:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 08:43:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 08:43:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 08:43:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 08:43:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 08:43:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-11-18 08:43:28,961 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 08:43:28,979 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 08:43:28,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:43:28 BoogieIcfgContainer [2018-11-18 08:43:28,979 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 08:43:28,980 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 08:43:28,980 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 08:43:28,982 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 08:43:28,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:43:28" (1/3) ... [2018-11-18 08:43:28,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d22ad18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:43:28, skipping insertion in model container [2018-11-18 08:43:28,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:43:28" (2/3) ... [2018-11-18 08:43:28,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d22ad18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:43:28, skipping insertion in model container [2018-11-18 08:43:28,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:43:28" (3/3) ... [2018-11-18 08:43:28,986 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1071_true-unreach-call.c [2018-11-18 08:43:28,992 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 08:43:28,997 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 08:43:29,005 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 08:43:29,025 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 08:43:29,025 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 08:43:29,025 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 08:43:29,026 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 08:43:29,026 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 08:43:29,026 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 08:43:29,026 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 08:43:29,026 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 08:43:29,026 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 08:43:29,037 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-11-18 08:43:29,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 08:43:29,042 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:43:29,042 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 08:43:29,044 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:43:29,048 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:43:29,048 INFO L82 PathProgramCache]: Analyzing trace with hash -450530201, now seen corresponding path program 1 times [2018-11-18 08:43:29,051 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 08:43:29,051 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_54a2159f-4207-49b2-b648-e0a04d3294a0/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 08:43:29,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:43:29,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:43:29,114 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:43:29,126 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 08:43:29,126 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 08:43:29,136 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:43:29,136 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 08:43:29,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 08:43:29,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 08:43:29,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 08:43:29,148 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2018-11-18 08:43:29,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:43:29,166 INFO L93 Difference]: Finished difference Result 58 states and 76 transitions. [2018-11-18 08:43:29,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 08:43:29,167 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-18 08:43:29,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:43:29,174 INFO L225 Difference]: With dead ends: 58 [2018-11-18 08:43:29,174 INFO L226 Difference]: Without dead ends: 29 [2018-11-18 08:43:29,177 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 08:43:29,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-11-18 08:43:29,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-11-18 08:43:29,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-18 08:43:29,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2018-11-18 08:43:29,205 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 21 [2018-11-18 08:43:29,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:43:29,205 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2018-11-18 08:43:29,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 08:43:29,205 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2018-11-18 08:43:29,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 08:43:29,206 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:43:29,206 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 08:43:29,206 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:43:29,206 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:43:29,207 INFO L82 PathProgramCache]: Analyzing trace with hash 2029546903, now seen corresponding path program 1 times [2018-11-18 08:43:29,207 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 08:43:29,207 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_54a2159f-4207-49b2-b648-e0a04d3294a0/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 08:43:29,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:43:29,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:43:29,269 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:43:29,323 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 08:43:29,323 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 08:43:29,334 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:43:29,334 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 08:43:29,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 08:43:29,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 08:43:29,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 08:43:29,336 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 4 states. [2018-11-18 08:43:29,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:43:29,377 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2018-11-18 08:43:29,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 08:43:29,378 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-11-18 08:43:29,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:43:29,380 INFO L225 Difference]: With dead ends: 42 [2018-11-18 08:43:29,380 INFO L226 Difference]: Without dead ends: 32 [2018-11-18 08:43:29,381 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 08:43:29,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-18 08:43:29,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2018-11-18 08:43:29,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-18 08:43:29,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2018-11-18 08:43:29,385 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 22 [2018-11-18 08:43:29,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:43:29,386 INFO L480 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2018-11-18 08:43:29,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 08:43:29,386 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2018-11-18 08:43:29,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 08:43:29,386 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:43:29,387 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 08:43:29,387 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:43:29,387 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:43:29,387 INFO L82 PathProgramCache]: Analyzing trace with hash 1257205282, now seen corresponding path program 1 times [2018-11-18 08:43:29,388 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 08:43:29,388 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_54a2159f-4207-49b2-b648-e0a04d3294a0/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 08:43:29,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:43:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:43:29,420 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:43:29,558 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 08:43:29,558 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 08:43:29,565 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:43:29,565 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 08:43:29,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 08:43:29,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 08:43:29,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-18 08:43:29,566 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 9 states. [2018-11-18 08:43:29,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:43:29,773 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2018-11-18 08:43:29,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 08:43:29,774 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-11-18 08:43:29,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:43:29,775 INFO L225 Difference]: With dead ends: 37 [2018-11-18 08:43:29,775 INFO L226 Difference]: Without dead ends: 28 [2018-11-18 08:43:29,775 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-18 08:43:29,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-18 08:43:29,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-11-18 08:43:29,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-18 08:43:29,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2018-11-18 08:43:29,783 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 23 [2018-11-18 08:43:29,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:43:29,783 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2018-11-18 08:43:29,783 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 08:43:29,783 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2018-11-18 08:43:29,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 08:43:29,784 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 08:43:29,784 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] [2018-11-18 08:43:29,784 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 08:43:29,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 08:43:29,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1740744820, now seen corresponding path program 1 times [2018-11-18 08:43:29,785 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 08:43:29,785 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_54a2159f-4207-49b2-b648-e0a04d3294a0/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 08:43:29,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 08:43:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 08:43:29,821 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 08:43:29,914 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 08:43:29,914 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 08:43:29,921 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 08:43:29,921 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 08:43:29,922 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 08:43:29,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 08:43:29,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 08:43:29,922 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 7 states. [2018-11-18 08:43:30,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 08:43:30,147 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-11-18 08:43:30,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 08:43:30,148 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-11-18 08:43:30,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 08:43:30,149 INFO L225 Difference]: With dead ends: 28 [2018-11-18 08:43:30,149 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 08:43:30,149 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 08:43:30,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 08:43:30,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 08:43:30,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 08:43:30,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 08:43:30,150 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-11-18 08:43:30,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 08:43:30,150 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 08:43:30,150 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 08:43:30,150 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 08:43:30,150 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 08:43:30,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 08:43:30,318 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 44) no Hoare annotation was computed. [2018-11-18 08:43:30,318 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 44) the Hoare annotation is: true [2018-11-18 08:43:30,318 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 44) no Hoare annotation was computed. [2018-11-18 08:43:30,318 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 08:43:30,318 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 08:43:30,319 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 08:43:30,319 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 08:43:30,319 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 08:43:30,319 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 08:43:30,319 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 08:43:30,319 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 46 62) the Hoare annotation is: true [2018-11-18 08:43:30,319 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 46 62) no Hoare annotation was computed. [2018-11-18 08:43:30,319 INFO L425 ceAbstractionStarter]: For program point L57(line 57) no Hoare annotation was computed. [2018-11-18 08:43:30,319 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 46 62) no Hoare annotation was computed. [2018-11-18 08:43:30,319 INFO L421 ceAbstractionStarter]: At program point L56(line 56) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~res~0 .cse0) (= main_~x~0 .cse0))) [2018-11-18 08:43:30,319 INFO L425 ceAbstractionStarter]: For program point L56-1(lines 56 59) no Hoare annotation was computed. [2018-11-18 08:43:30,320 INFO L421 ceAbstractionStarter]: At program point L53(line 53) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2018-11-18 08:43:30,320 INFO L425 ceAbstractionStarter]: For program point L53-1(line 53) no Hoare annotation was computed. [2018-11-18 08:43:30,320 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 57) no Hoare annotation was computed. [2018-11-18 08:43:30,320 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2018-11-18 08:43:30,320 INFO L425 ceAbstractionStarter]: For program point trunc_floatFINAL(lines 12 41) no Hoare annotation was computed. [2018-11-18 08:43:30,320 INFO L421 ceAbstractionStarter]: At program point L24-3(lines 24 28) the Hoare annotation is: (and (= trunc_float_~x |trunc_float_#in~x|) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (bvslt (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32)))) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (= (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) trunc_float_~exponent_less_127~0))) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|)) [2018-11-18 08:43:30,320 INFO L425 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-11-18 08:43:30,320 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 39) no Hoare annotation was computed. [2018-11-18 08:43:30,320 INFO L425 ceAbstractionStarter]: For program point L21-1(lines 21 39) no Hoare annotation was computed. [2018-11-18 08:43:30,320 INFO L428 ceAbstractionStarter]: At program point trunc_floatENTRY(lines 12 41) the Hoare annotation is: true [2018-11-18 08:43:30,321 INFO L425 ceAbstractionStarter]: For program point trunc_floatEXIT(lines 12 41) no Hoare annotation was computed. [2018-11-18 08:43:30,321 INFO L425 ceAbstractionStarter]: For program point L30-1(lines 30 34) no Hoare annotation was computed. [2018-11-18 08:43:30,321 INFO L421 ceAbstractionStarter]: At program point L30-3(lines 30 34) the Hoare annotation is: (and (= trunc_float_~x |trunc_float_#in~x|) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (bvslt (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32)))) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (= (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) trunc_float_~exponent_less_127~0))) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|)) [2018-11-18 08:43:30,321 INFO L425 ceAbstractionStarter]: For program point L22(lines 22 35) no Hoare annotation was computed. [2018-11-18 08:43:30,321 INFO L425 ceAbstractionStarter]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2018-11-18 08:43:30,321 INFO L421 ceAbstractionStarter]: At program point L14-3(lines 14 18) the Hoare annotation is: (= trunc_float_~x |trunc_float_#in~x|) [2018-11-18 08:43:30,321 INFO L425 ceAbstractionStarter]: For program point L14-4(lines 14 18) no Hoare annotation was computed. [2018-11-18 08:43:30,330 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,330 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,331 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,331 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,331 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,331 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,331 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,331 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,332 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,332 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,333 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,333 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,333 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,333 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,334 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,334 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,334 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,335 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,335 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,335 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,335 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,335 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,336 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,336 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,336 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,336 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,337 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,337 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,337 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,337 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,337 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,338 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:43:30 BoogieIcfgContainer [2018-11-18 08:43:30,339 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 08:43:30,340 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 08:43:30,340 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 08:43:30,340 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 08:43:30,340 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:43:28" (3/4) ... [2018-11-18 08:43:30,343 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 08:43:30,348 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-18 08:43:30,348 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 08:43:30,348 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 08:43:30,348 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure trunc_float [2018-11-18 08:43:30,351 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-11-18 08:43:30,352 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-18 08:43:30,352 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 08:43:30,368 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-18 08:43:30,369 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == \old(x) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) [2018-11-18 08:43:30,369 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == \old(x) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) [2018-11-18 08:43:30,385 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_54a2159f-4207-49b2-b648-e0a04d3294a0/bin-2019/uautomizer/witness.graphml [2018-11-18 08:43:30,385 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 08:43:30,386 INFO L168 Benchmark]: Toolchain (without parser) took 1906.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 949.7 MB in the beginning and 992.9 MB in the end (delta: -43.2 MB). Peak memory consumption was 106.2 MB. Max. memory is 11.5 GB. [2018-11-18 08:43:30,387 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 08:43:30,388 INFO L168 Benchmark]: CACSL2BoogieTranslator took 198.64 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 08:43:30,388 INFO L168 Benchmark]: Boogie Preprocessor took 28.65 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 08:43:30,388 INFO L168 Benchmark]: RCFGBuilder took 270.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -187.7 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2018-11-18 08:43:30,389 INFO L168 Benchmark]: TraceAbstraction took 1359.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 999.5 MB in the end (delta: 121.8 MB). Peak memory consumption was 121.8 MB. Max. memory is 11.5 GB. [2018-11-18 08:43:30,389 INFO L168 Benchmark]: Witness Printer took 45.71 ms. Allocated memory is still 1.2 GB. Free memory was 999.5 MB in the beginning and 992.9 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-18 08:43:30,390 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 198.64 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 28.65 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 270.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -187.7 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1359.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 999.5 MB in the end (delta: 121.8 MB). Peak memory consumption was 121.8 MB. Max. memory is 11.5 GB. * Witness Printer took 45.71 ms. Allocated memory is still 1.2 GB. Free memory was 999.5 MB in the beginning and 992.9 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 57]: 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: 14]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 30]: Loop Invariant [2018-11-18 08:43:30,394 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,395 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,395 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,395 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,395 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,395 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,395 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,395 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,395 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,396 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,396 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,396 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,396 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,396 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,396 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,396 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] Derived loop invariant: ((x == \old(x) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) - InvariantResult [Line: 24]: Loop Invariant [2018-11-18 08:43:30,397 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,397 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,397 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,397 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,397 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,397 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,397 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,397 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,398 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,398 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,398 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,398 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,398 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,398 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,398 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 08:43:30,398 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] Derived loop invariant: ((x == \old(x) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 33 locations, 1 error locations. SAFE Result, 1.3s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 98 SDtfs, 50 SDslu, 220 SDs, 0 SdLazy, 84 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 14 PreInvPairs, 18 NumberOfFragments, 134 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 20 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 87 ConstructedInterpolants, 9 QuantifiedInterpolants, 7602 SizeOfPredicates, 10 NumberOfNonLiveVariables, 220 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...