./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1010_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_726af63b-78a9-424e-a8f0-bfff79f41066/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_726af63b-78a9-424e-a8f0-bfff79f41066/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_726af63b-78a9-424e-a8f0-bfff79f41066/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_726af63b-78a9-424e-a8f0-bfff79f41066/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1010_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_726af63b-78a9-424e-a8f0-bfff79f41066/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_726af63b-78a9-424e-a8f0-bfff79f41066/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 70ee165c745ab937eeca69bc762f66bcb3efe6fa ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_726af63b-78a9-424e-a8f0-bfff79f41066/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_726af63b-78a9-424e-a8f0-bfff79f41066/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_726af63b-78a9-424e-a8f0-bfff79f41066/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_726af63b-78a9-424e-a8f0-bfff79f41066/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1010_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_726af63b-78a9-424e-a8f0-bfff79f41066/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_726af63b-78a9-424e-a8f0-bfff79f41066/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 70ee165c745ab937eeca69bc762f66bcb3efe6fa ................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-22 21:23:16,704 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 21:23:16,706 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 21:23:16,713 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 21:23:16,714 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 21:23:16,714 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 21:23:16,716 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 21:23:16,717 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 21:23:16,718 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 21:23:16,719 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 21:23:16,720 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 21:23:16,720 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 21:23:16,721 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 21:23:16,722 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 21:23:16,723 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 21:23:16,724 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 21:23:16,724 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 21:23:16,726 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 21:23:16,728 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 21:23:16,729 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 21:23:16,730 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 21:23:16,731 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 21:23:16,733 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 21:23:16,733 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 21:23:16,733 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 21:23:16,734 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 21:23:16,735 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 21:23:16,736 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 21:23:16,736 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 21:23:16,737 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 21:23:16,737 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 21:23:16,738 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 21:23:16,738 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 21:23:16,738 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 21:23:16,739 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 21:23:16,740 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 21:23:16,740 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_726af63b-78a9-424e-a8f0-bfff79f41066/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-22 21:23:16,751 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 21:23:16,751 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 21:23:16,752 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-22 21:23:16,752 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-22 21:23:16,752 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-22 21:23:16,752 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-22 21:23:16,753 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-22 21:23:16,753 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-22 21:23:16,753 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-22 21:23:16,753 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-22 21:23:16,753 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-22 21:23:16,753 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-22 21:23:16,754 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-22 21:23:16,754 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 21:23:16,755 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-22 21:23:16,755 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 21:23:16,755 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-22 21:23:16,755 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 21:23:16,755 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-22 21:23:16,755 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-22 21:23:16,756 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-22 21:23:16,756 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-22 21:23:16,756 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 21:23:16,756 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 21:23:16,756 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-22 21:23:16,757 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 21:23:16,757 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 21:23:16,757 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-22 21:23:16,757 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-22 21:23:16,757 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 21:23:16,757 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 21:23:16,758 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-22 21:23:16,758 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-22 21:23:16,758 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-22 21:23:16,758 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-22 21:23:16,758 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-22 21:23:16,758 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-22 21:23:16,759 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_726af63b-78a9-424e-a8f0-bfff79f41066/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70ee165c745ab937eeca69bc762f66bcb3efe6fa [2018-11-22 21:23:16,782 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 21:23:16,794 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 21:23:16,797 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 21:23:16,799 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 21:23:16,799 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 21:23:16,800 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_726af63b-78a9-424e-a8f0-bfff79f41066/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1010_true-unreach-call.c [2018-11-22 21:23:16,850 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_726af63b-78a9-424e-a8f0-bfff79f41066/bin-2019/utaipan/data/a3d50ae15/ea5df646b3444ea6a6e7ffd3405fb75b/FLAG2b64b3499 [2018-11-22 21:23:17,200 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 21:23:17,201 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_726af63b-78a9-424e-a8f0-bfff79f41066/sv-benchmarks/c/float-newlib/float_req_bl_1010_true-unreach-call.c [2018-11-22 21:23:17,206 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_726af63b-78a9-424e-a8f0-bfff79f41066/bin-2019/utaipan/data/a3d50ae15/ea5df646b3444ea6a6e7ffd3405fb75b/FLAG2b64b3499 [2018-11-22 21:23:17,216 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_726af63b-78a9-424e-a8f0-bfff79f41066/bin-2019/utaipan/data/a3d50ae15/ea5df646b3444ea6a6e7ffd3405fb75b [2018-11-22 21:23:17,219 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 21:23:17,220 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 21:23:17,220 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 21:23:17,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 21:23:17,224 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 21:23:17,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:23:17" (1/1) ... [2018-11-22 21:23:17,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15a4b09f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:17, skipping insertion in model container [2018-11-22 21:23:17,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:23:17" (1/1) ... [2018-11-22 21:23:17,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 21:23:17,254 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 21:23:17,399 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 21:23:17,402 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 21:23:17,416 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 21:23:17,432 INFO L195 MainTranslator]: Completed translation [2018-11-22 21:23:17,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:17 WrapperNode [2018-11-22 21:23:17,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 21:23:17,433 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 21:23:17,434 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 21:23:17,434 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 21:23:17,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:17" (1/1) ... [2018-11-22 21:23:17,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:17" (1/1) ... [2018-11-22 21:23:17,460 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 21:23:17,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 21:23:17,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 21:23:17,461 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 21:23:17,513 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:17" (1/1) ... [2018-11-22 21:23:17,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:17" (1/1) ... [2018-11-22 21:23:17,515 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:17" (1/1) ... [2018-11-22 21:23:17,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:17" (1/1) ... [2018-11-22 21:23:17,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:17" (1/1) ... [2018-11-22 21:23:17,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:17" (1/1) ... [2018-11-22 21:23:17,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:17" (1/1) ... [2018-11-22 21:23:17,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 21:23:17,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 21:23:17,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 21:23:17,530 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 21:23:17,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_726af63b-78a9-424e-a8f0-bfff79f41066/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 21:23:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-22 21:23:17,576 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-22 21:23:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-22 21:23:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-22 21:23:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-22 21:23:17,576 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-22 21:23:17,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-22 21:23:17,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-22 21:23:17,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-22 21:23:17,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-22 21:23:17,577 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-22 21:23:17,577 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-22 21:23:17,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 21:23:17,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 21:23:17,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-22 21:23:17,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-22 21:23:17,751 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 21:23:17,751 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-22 21:23:17,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:23:17 BoogieIcfgContainer [2018-11-22 21:23:17,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 21:23:17,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-22 21:23:17,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-22 21:23:17,757 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-22 21:23:17,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:23:17" (1/3) ... [2018-11-22 21:23:17,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd531b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:23:17, skipping insertion in model container [2018-11-22 21:23:17,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:17" (2/3) ... [2018-11-22 21:23:17,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd531b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:23:17, skipping insertion in model container [2018-11-22 21:23:17,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:23:17" (3/3) ... [2018-11-22 21:23:17,761 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1010_true-unreach-call.c [2018-11-22 21:23:17,774 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-22 21:23:17,782 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-22 21:23:17,800 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-22 21:23:17,834 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-22 21:23:17,834 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-22 21:23:17,834 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-22 21:23:17,835 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 21:23:17,835 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 21:23:17,835 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-22 21:23:17,835 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 21:23:17,835 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-22 21:23:17,855 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-11-22 21:23:17,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-22 21:23:17,861 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:23:17,863 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:23:17,865 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:23:17,873 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:23:17,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1334747875, now seen corresponding path program 1 times [2018-11-22 21:23:17,876 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:23:17,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:23:17,926 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:23:17,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:23:17,927 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:23:17,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:23:17,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:23:18,001 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:23:18,002 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-22 21:23:18,002 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:23:18,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-22 21:23:18,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-22 21:23:18,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-22 21:23:18,018 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2018-11-22 21:23:18,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:23:18,034 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2018-11-22 21:23:18,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-22 21:23:18,035 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-22 21:23:18,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:23:18,043 INFO L225 Difference]: With dead ends: 48 [2018-11-22 21:23:18,043 INFO L226 Difference]: Without dead ends: 24 [2018-11-22 21:23:18,047 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-22 21:23:18,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-11-22 21:23:18,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-11-22 21:23:18,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-22 21:23:18,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 23 transitions. [2018-11-22 21:23:18,078 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 23 transitions. Word has length 21 [2018-11-22 21:23:18,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:23:18,079 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 23 transitions. [2018-11-22 21:23:18,079 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-22 21:23:18,079 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2018-11-22 21:23:18,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-22 21:23:18,080 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:23:18,080 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:23:18,080 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:23:18,080 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:23:18,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1526057926, now seen corresponding path program 1 times [2018-11-22 21:23:18,081 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:23:18,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:23:18,082 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:23:18,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:23:18,082 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:23:18,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:23:18,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:23:18,161 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); VAL [|#NULL.base|=15, |#NULL.offset|=6, |old(#NULL.base)|=15, |old(#NULL.offset)|=6] [?] #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=15, |old(#NULL.offset)|=6] [?] assume true; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=15, |old(#NULL.offset)|=6] [?] RET #46#return; VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret6 := main(); VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret4 := fabs_float(~x~0); VAL [|#NULL.base|=0, |#NULL.offset|=0, |fabs_float_#in~x|=14.0] [?] ~x := #in~x;havoc ~ix~0; VAL [fabs_float_~x=14.0, |#NULL.base|=0, |#NULL.offset|=0, |fabs_float_#in~x|=14.0] [?] call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.alloc(4);call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4);call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4);~ix~0 := #t~mem0;call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4);havoc #t~mem0;havoc #t~union1;call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset);havoc ~#gf_u~0.base, ~#gf_u~0.offset; VAL [fabs_float_~ix~0=12, fabs_float_~x=14.0, |#NULL.base|=0, |#NULL.offset|=0, |fabs_float_#in~x|=14.0] [?] goto; VAL [fabs_float_~ix~0=12, fabs_float_~x=14.0, |#NULL.base|=0, |#NULL.offset|=0, |fabs_float_#in~x|=14.0] [?] call ~#sf_u~0.base, ~#sf_u~0.offset := #Ultimate.alloc(4);call write~int(~bitwiseAnd(~ix~0, 2147483647), ~#sf_u~0.base, ~#sf_u~0.offset, 4);call #t~mem2 := read~real(~#sf_u~0.base, ~#sf_u~0.offset, 4);~x := #t~mem2;call write~int(#t~union3, ~#sf_u~0.base, ~#sf_u~0.offset, 4);havoc #t~union3;havoc #t~mem2;call ULTIMATE.dealloc(~#sf_u~0.base, ~#sf_u~0.offset);havoc ~#sf_u~0.base, ~#sf_u~0.offset; VAL [fabs_float_~ix~0=12, fabs_float_~x=5.0, |#NULL.base|=0, |#NULL.offset|=0, |fabs_float_#in~x|=14.0] [?] goto; VAL [fabs_float_~ix~0=12, fabs_float_~x=5.0, |#NULL.base|=0, |#NULL.offset|=0, |fabs_float_#in~x|=14.0] [?] #res := ~x; VAL [fabs_float_~ix~0=12, fabs_float_~x=5.0, |#NULL.base|=0, |#NULL.offset|=0, |fabs_float_#in~x|=14.0, |fabs_float_#res|=5.0] [?] assume true; VAL [fabs_float_~ix~0=12, fabs_float_~x=5.0, |#NULL.base|=0, |#NULL.offset|=0, |fabs_float_#in~x|=14.0, |fabs_float_#res|=5.0] [?] RET #50#return; VAL [main_~x~0=14.0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~ret4|=5.0] [?] ~res~0 := #t~ret4;havoc #t~ret4; VAL [main_~res~0=5.0, main_~x~0=14.0, |#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret5 := isnan_float(~res~0); VAL [|#NULL.base|=0, |#NULL.offset|=0, |isnan_float_#in~x|=5.0] [?] ~x := #in~x;#res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); VAL [isnan_float_~x=5.0, |#NULL.base|=0, |#NULL.offset|=0, |isnan_float_#in~x|=5.0, |isnan_float_#res|=0] [?] assume true; VAL [isnan_float_~x=5.0, |#NULL.base|=0, |#NULL.offset|=0, |isnan_float_#in~x|=5.0, |isnan_float_#res|=0] [?] RET #52#return; VAL [main_~res~0=5.0, main_~x~0=14.0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~ret5|=0] [?] assume -2147483648 <= #t~ret5 && #t~ret5 <= 2147483647; VAL [main_~res~0=5.0, main_~x~0=14.0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~ret5|=0] [?] assume 0 == #t~ret5;havoc #t~ret5; VAL [main_~res~0=5.0, main_~x~0=14.0, |#NULL.base|=0, |#NULL.offset|=0] [?] assume !false; VAL [main_~res~0=5.0, main_~x~0=14.0, |#NULL.base|=0, |#NULL.offset|=0] [?] CALL call ULTIMATE.init(); VAL [#NULL.base=15, #NULL.offset=6, old(#NULL.base)=15, old(#NULL.offset)=6] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=15, old(#NULL.offset)=6] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=15, old(#NULL.offset)=6] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret6 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L35] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); VAL [#NULL.base=0, #NULL.offset=0] [L36] CALL call #t~ret4 := fabs_float(~x~0); VAL [#in~x=14.0, #NULL.base=0, #NULL.offset=0] [L14-L27] ~x := #in~x; [L15] havoc ~ix~0; VAL [#in~x=14.0, #NULL.base=0, #NULL.offset=0, ~x=14.0] [L17] call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.alloc(4); [L18] call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L19] call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4); [L19] ~ix~0 := #t~mem0; [L19] call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L19] havoc #t~mem0; [L19] havoc #t~union1; [L17] call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); [L17] havoc ~#gf_u~0.base, ~#gf_u~0.offset; VAL [#in~x=14.0, #NULL.base=0, #NULL.offset=0, ~ix~0=12, ~x=14.0] [L22] call ~#sf_u~0.base, ~#sf_u~0.offset := #Ultimate.alloc(4); [L23] call write~int(~bitwiseAnd(~ix~0, 2147483647), ~#sf_u~0.base, ~#sf_u~0.offset, 4); [L24] call #t~mem2 := read~real(~#sf_u~0.base, ~#sf_u~0.offset, 4); [L24] ~x := #t~mem2; [L24] call write~int(#t~union3, ~#sf_u~0.base, ~#sf_u~0.offset, 4); [L24] havoc #t~union3; [L24] havoc #t~mem2; [L22] call ULTIMATE.dealloc(~#sf_u~0.base, ~#sf_u~0.offset); [L22] havoc ~#sf_u~0.base, ~#sf_u~0.offset; VAL [#in~x=14.0, #NULL.base=0, #NULL.offset=0, ~ix~0=12, ~x=5.0] [L26] #res := ~x; VAL [#in~x=14.0, #NULL.base=0, #NULL.offset=0, #res=5.0, ~ix~0=12, ~x=5.0] [L14-L27] ensures true; VAL [#in~x=14.0, #NULL.base=0, #NULL.offset=0, #res=5.0, ~ix~0=12, ~x=5.0] [L36] RET call #t~ret4 := fabs_float(~x~0); VAL [#NULL.base=0, #NULL.offset=0, #t~ret4=5.0, ~x~0=14.0] [L36] ~res~0 := #t~ret4; [L36] havoc #t~ret4; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=5.0, ~x~0=14.0] [L39] CALL call #t~ret5 := isnan_float(~res~0); VAL [#in~x=5.0, #NULL.base=0, #NULL.offset=0] [L12] ~x := #in~x; [L12] #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); VAL [#in~x=5.0, #NULL.base=0, #NULL.offset=0, #res=0, ~x=5.0] [L12] ensures true; VAL [#in~x=5.0, #NULL.base=0, #NULL.offset=0, #res=0, ~x=5.0] [L39] RET call #t~ret5 := isnan_float(~res~0); VAL [#NULL.base=0, #NULL.offset=0, #t~ret5=0, ~res~0=5.0, ~x~0=14.0] [L39] assume -2147483648 <= #t~ret5 && #t~ret5 <= 2147483647; VAL [#NULL.base=0, #NULL.offset=0, #t~ret5=0, ~res~0=5.0, ~x~0=14.0] [L39-L42] assume 0 == #t~ret5; [L39] havoc #t~ret5; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=5.0, ~x~0=14.0] [L40] assert false; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=5.0, ~x~0=14.0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL.base=15, #NULL.offset=6, old(#NULL.base)=15, old(#NULL.offset)=6] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=15, old(#NULL.offset)=6] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=15, old(#NULL.offset)=6] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret6 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L35] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); VAL [#NULL.base=0, #NULL.offset=0] [L36] CALL call #t~ret4 := fabs_float(~x~0); VAL [#in~x=14.0, #NULL.base=0, #NULL.offset=0] [L14-L27] ~x := #in~x; [L15] havoc ~ix~0; VAL [#in~x=14.0, #NULL.base=0, #NULL.offset=0, ~x=14.0] [L17] call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.alloc(4); [L18] call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L19] call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4); [L19] ~ix~0 := #t~mem0; [L19] call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L19] havoc #t~mem0; [L19] havoc #t~union1; [L17] call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); [L17] havoc ~#gf_u~0.base, ~#gf_u~0.offset; VAL [#in~x=14.0, #NULL.base=0, #NULL.offset=0, ~ix~0=12, ~x=14.0] [L22] call ~#sf_u~0.base, ~#sf_u~0.offset := #Ultimate.alloc(4); [L23] call write~int(~bitwiseAnd(~ix~0, 2147483647), ~#sf_u~0.base, ~#sf_u~0.offset, 4); [L24] call #t~mem2 := read~real(~#sf_u~0.base, ~#sf_u~0.offset, 4); [L24] ~x := #t~mem2; [L24] call write~int(#t~union3, ~#sf_u~0.base, ~#sf_u~0.offset, 4); [L24] havoc #t~union3; [L24] havoc #t~mem2; [L22] call ULTIMATE.dealloc(~#sf_u~0.base, ~#sf_u~0.offset); [L22] havoc ~#sf_u~0.base, ~#sf_u~0.offset; VAL [#in~x=14.0, #NULL.base=0, #NULL.offset=0, ~ix~0=12, ~x=5.0] [L26] #res := ~x; VAL [#in~x=14.0, #NULL.base=0, #NULL.offset=0, #res=5.0, ~ix~0=12, ~x=5.0] [L14-L27] ensures true; VAL [#in~x=14.0, #NULL.base=0, #NULL.offset=0, #res=5.0, ~ix~0=12, ~x=5.0] [L36] RET call #t~ret4 := fabs_float(~x~0); VAL [#NULL.base=0, #NULL.offset=0, #t~ret4=5.0, ~x~0=14.0] [L36] ~res~0 := #t~ret4; [L36] havoc #t~ret4; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=5.0, ~x~0=14.0] [L39] CALL call #t~ret5 := isnan_float(~res~0); VAL [#in~x=5.0, #NULL.base=0, #NULL.offset=0] [L12] ~x := #in~x; [L12] #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); VAL [#in~x=5.0, #NULL.base=0, #NULL.offset=0, #res=0, ~x=5.0] [L12] ensures true; VAL [#in~x=5.0, #NULL.base=0, #NULL.offset=0, #res=0, ~x=5.0] [L39] RET call #t~ret5 := isnan_float(~res~0); VAL [#NULL.base=0, #NULL.offset=0, #t~ret5=0, ~res~0=5.0, ~x~0=14.0] [L39] assume -2147483648 <= #t~ret5 && #t~ret5 <= 2147483647; VAL [#NULL.base=0, #NULL.offset=0, #t~ret5=0, ~res~0=5.0, ~x~0=14.0] [L39-L42] assume 0 == #t~ret5; [L39] havoc #t~ret5; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=5.0, ~x~0=14.0] [L40] assert false; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=5.0, ~x~0=14.0] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=15, #NULL!offset=6, old(#NULL!base)=15, old(#NULL!offset)=6] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=15, old(#NULL!offset)=6] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret6 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L35] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); VAL [#NULL!base=0, #NULL!offset=0] [L36] CALL call #t~ret4 := fabs_float(~x~0); VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0] [L14-L27] ~x := #in~x; [L15] havoc ~ix~0; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, ~x=14.0] [L17] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L18] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L19] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L19] ~ix~0 := #t~mem0; [L19] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L19] havoc #t~mem0; [L19] havoc #t~union1; [L17] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L17] havoc ~#gf_u~0; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=12, ~x=14.0] [L22] FCALL call ~#sf_u~0 := #Ultimate.alloc(4); [L23] FCALL call write~int(~bitwiseAnd(~ix~0, 2147483647), { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L24] FCALL call #t~mem2 := read~real({ base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L24] ~x := #t~mem2; [L24] FCALL call write~int(#t~union3, { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L24] havoc #t~union3; [L24] havoc #t~mem2; [L22] FCALL call ULTIMATE.dealloc(~#sf_u~0); [L22] havoc ~#sf_u~0; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=12, ~x=5.0] [L26] #res := ~x; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, #res=5.0, ~ix~0=12, ~x=5.0] [L36] RET call #t~ret4 := fabs_float(~x~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret4=5.0, ~x~0=14.0] [L36] ~res~0 := #t~ret4; [L36] havoc #t~ret4; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=5.0, ~x~0=14.0] [L39] CALL call #t~ret5 := isnan_float(~res~0); VAL [#in~x=5.0, #NULL!base=0, #NULL!offset=0] [L12] ~x := #in~x; [L12] #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); VAL [#in~x=5.0, #NULL!base=0, #NULL!offset=0, #res=0, ~x=5.0] [L39] RET call #t~ret5 := isnan_float(~res~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret5=0, ~res~0=5.0, ~x~0=14.0] [L39] assume -2147483648 <= #t~ret5 && #t~ret5 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, #t~ret5=0, ~res~0=5.0, ~x~0=14.0] [L39] COND TRUE 0 == #t~ret5 [L39] havoc #t~ret5; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=5.0, ~x~0=14.0] [L40] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=5.0, ~x~0=14.0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=15, #NULL!offset=6, old(#NULL!base)=15, old(#NULL!offset)=6] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=15, old(#NULL!offset)=6] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret6 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L35] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); VAL [#NULL!base=0, #NULL!offset=0] [L36] CALL call #t~ret4 := fabs_float(~x~0); VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0] [L14-L27] ~x := #in~x; [L15] havoc ~ix~0; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, ~x=14.0] [L17] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L18] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L19] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L19] ~ix~0 := #t~mem0; [L19] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L19] havoc #t~mem0; [L19] havoc #t~union1; [L17] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L17] havoc ~#gf_u~0; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=12, ~x=14.0] [L22] FCALL call ~#sf_u~0 := #Ultimate.alloc(4); [L23] FCALL call write~int(~bitwiseAnd(~ix~0, 2147483647), { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L24] FCALL call #t~mem2 := read~real({ base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L24] ~x := #t~mem2; [L24] FCALL call write~int(#t~union3, { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L24] havoc #t~union3; [L24] havoc #t~mem2; [L22] FCALL call ULTIMATE.dealloc(~#sf_u~0); [L22] havoc ~#sf_u~0; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=12, ~x=5.0] [L26] #res := ~x; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, #res=5.0, ~ix~0=12, ~x=5.0] [L36] RET call #t~ret4 := fabs_float(~x~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret4=5.0, ~x~0=14.0] [L36] ~res~0 := #t~ret4; [L36] havoc #t~ret4; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=5.0, ~x~0=14.0] [L39] CALL call #t~ret5 := isnan_float(~res~0); VAL [#in~x=5.0, #NULL!base=0, #NULL!offset=0] [L12] ~x := #in~x; [L12] #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); VAL [#in~x=5.0, #NULL!base=0, #NULL!offset=0, #res=0, ~x=5.0] [L39] RET call #t~ret5 := isnan_float(~res~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret5=0, ~res~0=5.0, ~x~0=14.0] [L39] assume -2147483648 <= #t~ret5 && #t~ret5 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, #t~ret5=0, ~res~0=5.0, ~x~0=14.0] [L39] COND TRUE 0 == #t~ret5 [L39] havoc #t~ret5; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=5.0, ~x~0=14.0] [L40] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=5.0, ~x~0=14.0] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=15, #NULL!offset=6, old(#NULL!base)=15, old(#NULL!offset)=6] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=15, old(#NULL!offset)=6] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret6 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L35] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); VAL [#NULL!base=0, #NULL!offset=0] [L36] CALL call #t~ret4 := fabs_float(~x~0); VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0] [L14-L27] ~x := #in~x; [L15] havoc ~ix~0; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, ~x=14.0] [L17] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L18] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L19] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L19] ~ix~0 := #t~mem0; [L19] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L19] havoc #t~mem0; [L19] havoc #t~union1; [L17] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L17] havoc ~#gf_u~0; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=12, ~x=14.0] [L22] FCALL call ~#sf_u~0 := #Ultimate.alloc(4); [L23] FCALL call write~int(~bitwiseAnd(~ix~0, 2147483647), { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L24] FCALL call #t~mem2 := read~real({ base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L24] ~x := #t~mem2; [L24] FCALL call write~int(#t~union3, { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L24] havoc #t~union3; [L24] havoc #t~mem2; [L22] FCALL call ULTIMATE.dealloc(~#sf_u~0); [L22] havoc ~#sf_u~0; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=12, ~x=5.0] [L26] #res := ~x; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, #res=5.0, ~ix~0=12, ~x=5.0] [L36] RET call #t~ret4 := fabs_float(~x~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret4=5.0, ~x~0=14.0] [L36] ~res~0 := #t~ret4; [L36] havoc #t~ret4; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=5.0, ~x~0=14.0] [L39] CALL call #t~ret5 := isnan_float(~res~0); VAL [#in~x=5.0, #NULL!base=0, #NULL!offset=0] [L12] ~x := #in~x; [L12] #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); VAL [#in~x=5.0, #NULL!base=0, #NULL!offset=0, #res=0, ~x=5.0] [L39] RET call #t~ret5 := isnan_float(~res~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret5=0, ~res~0=5.0, ~x~0=14.0] [L39] assume -2147483648 <= #t~ret5 && #t~ret5 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, #t~ret5=0, ~res~0=5.0, ~x~0=14.0] [L39] COND TRUE 0 == #t~ret5 [L39] havoc #t~ret5; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=5.0, ~x~0=14.0] [L40] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=5.0, ~x~0=14.0] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=15, #NULL!offset=6, old(#NULL!base)=15, old(#NULL!offset)=6] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=15, old(#NULL!offset)=6] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret6 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L35] ~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0); VAL [#NULL!base=0, #NULL!offset=0] [L36] CALL call #t~ret4 := fabs_float(~x~0); VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0] [L14-L27] ~x := #in~x; [L15] havoc ~ix~0; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, ~x=14.0] [L17] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L18] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L19] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L19] ~ix~0 := #t~mem0; [L19] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L19] havoc #t~mem0; [L19] havoc #t~union1; [L17] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L17] havoc ~#gf_u~0; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=12, ~x=14.0] [L22] FCALL call ~#sf_u~0 := #Ultimate.alloc(4); [L23] FCALL call write~int(~bitwiseAnd(~ix~0, 2147483647), { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L24] FCALL call #t~mem2 := read~real({ base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L24] ~x := #t~mem2; [L24] FCALL call write~int(#t~union3, { base: ~#sf_u~0!base, offset: ~#sf_u~0!offset }, 4); [L24] havoc #t~union3; [L24] havoc #t~mem2; [L22] FCALL call ULTIMATE.dealloc(~#sf_u~0); [L22] havoc ~#sf_u~0; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, ~ix~0=12, ~x=5.0] [L26] #res := ~x; VAL [#in~x=14.0, #NULL!base=0, #NULL!offset=0, #res=5.0, ~ix~0=12, ~x=5.0] [L36] RET call #t~ret4 := fabs_float(~x~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret4=5.0, ~x~0=14.0] [L36] ~res~0 := #t~ret4; [L36] havoc #t~ret4; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=5.0, ~x~0=14.0] [L39] CALL call #t~ret5 := isnan_float(~res~0); VAL [#in~x=5.0, #NULL!base=0, #NULL!offset=0] [L12] ~x := #in~x; [L12] #res := (if ~someBinaryFLOATComparisonOperation(~x, ~x) then 1 else 0); VAL [#in~x=5.0, #NULL!base=0, #NULL!offset=0, #res=0, ~x=5.0] [L39] RET call #t~ret5 := isnan_float(~res~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret5=0, ~res~0=5.0, ~x~0=14.0] [L39] assume -2147483648 <= #t~ret5 && #t~ret5 <= 2147483647; VAL [#NULL!base=0, #NULL!offset=0, #t~ret5=0, ~res~0=5.0, ~x~0=14.0] [L39] COND TRUE 0 == #t~ret5 [L39] havoc #t~ret5; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=5.0, ~x~0=14.0] [L40] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=5.0, ~x~0=14.0] [L35] float x = 0.0f / 0.0f; [L36] CALL, EXPR fabs_float(x) VAL [\old(x)=14] [L15] __uint32_t ix; VAL [\old(x)=14, x=14] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (ix) = gf_u.word [L22] ieee_float_shape_type sf_u; [L23] sf_u.word = (ix & 0x7fffffff) [L24] EXPR sf_u.value [L24] (x) = sf_u.value [L26] return x; VAL [\old(x)=14, \result=5, ix=12, x=5] [L36] RET, EXPR fabs_float(x) VAL [fabs_float(x)=5, x=14] [L36] float res = fabs_float(x); [L39] CALL, EXPR isnan_float(res) VAL [\old(x)=5] [L12] return x != x; VAL [\old(x)=5, \result=0, x=5] [L39] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, res=5, x=14] [L39] COND TRUE !isnan_float(res) [L40] __VERIFIER_error() VAL [res=5, x=14] ----- [2018-11-22 21:23:18,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 09:23:18 BoogieIcfgContainer [2018-11-22 21:23:18,198 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-22 21:23:18,199 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 21:23:18,199 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 21:23:18,199 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 21:23:18,199 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:23:17" (3/4) ... [2018-11-22 21:23:18,202 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-22 21:23:18,202 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 21:23:18,203 INFO L168 Benchmark]: Toolchain (without parser) took 983.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -127.6 MB). Peak memory consumption was 10.3 MB. Max. memory is 11.5 GB. [2018-11-22 21:23:18,205 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:23:18,205 INFO L168 Benchmark]: CACSL2BoogieTranslator took 212.78 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-22 21:23:18,206 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.19 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 MB in the beginning and 939.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 11.5 GB. [2018-11-22 21:23:18,207 INFO L168 Benchmark]: Boogie Preprocessor took 68.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -192.9 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-22 21:23:18,207 INFO L168 Benchmark]: RCFGBuilder took 222.20 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: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2018-11-22 21:23:18,208 INFO L168 Benchmark]: TraceAbstraction took 445.60 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: 36.5 MB). Peak memory consumption was 36.5 MB. Max. memory is 11.5 GB. [2018-11-22 21:23:18,209 INFO L168 Benchmark]: Witness Printer took 3.62 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. [2018-11-22 21:23:18,212 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 212.78 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.19 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 MB in the beginning and 939.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 68.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -192.9 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 222.20 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: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 445.60 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: 36.5 MB). Peak memory consumption was 36.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.62 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: 40]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 12, overapproximation of someBinaryArithmeticFLOAToperation at line 35, overapproximation of bitwiseAnd at line 23. Possible FailurePath: [L35] float x = 0.0f / 0.0f; [L36] CALL, EXPR fabs_float(x) VAL [\old(x)=14] [L15] __uint32_t ix; VAL [\old(x)=14, x=14] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (ix) = gf_u.word [L22] ieee_float_shape_type sf_u; [L23] sf_u.word = (ix & 0x7fffffff) [L24] EXPR sf_u.value [L24] (x) = sf_u.value [L26] return x; VAL [\old(x)=14, \result=5, ix=12, x=5] [L36] RET, EXPR fabs_float(x) VAL [fabs_float(x)=5, x=14] [L36] float res = fabs_float(x); [L39] CALL, EXPR isnan_float(res) VAL [\old(x)=5] [L12] return x != x; VAL [\old(x)=5, \result=0, x=5] [L39] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, res=5, x=14] [L39] COND TRUE !isnan_float(res) [L40] __VERIFIER_error() VAL [res=5, x=14] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 28 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 27 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=28occurred 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, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 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-aa41828 [2018-11-22 21:23:19,959 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 21:23:19,961 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 21:23:19,972 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 21:23:19,973 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 21:23:19,973 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 21:23:19,975 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 21:23:19,977 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 21:23:19,978 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 21:23:19,979 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 21:23:19,980 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 21:23:19,980 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 21:23:19,981 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 21:23:19,982 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 21:23:19,983 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 21:23:19,985 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 21:23:19,986 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 21:23:19,987 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 21:23:19,989 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 21:23:19,991 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 21:23:19,992 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 21:23:19,993 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 21:23:19,995 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 21:23:19,995 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 21:23:19,995 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 21:23:19,997 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 21:23:19,998 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 21:23:19,998 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 21:23:19,999 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 21:23:20,001 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 21:23:20,001 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 21:23:20,002 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 21:23:20,002 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 21:23:20,002 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 21:23:20,003 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 21:23:20,003 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 21:23:20,004 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_726af63b-78a9-424e-a8f0-bfff79f41066/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-22 21:23:20,017 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 21:23:20,017 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 21:23:20,018 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-22 21:23:20,018 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-22 21:23:20,019 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-22 21:23:20,019 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-22 21:23:20,019 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-22 21:23:20,019 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-22 21:23:20,019 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-22 21:23:20,020 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-22 21:23:20,020 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 21:23:20,021 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-22 21:23:20,021 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-22 21:23:20,021 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 21:23:20,021 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-22 21:23:20,021 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-22 21:23:20,022 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-22 21:23:20,022 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-22 21:23:20,022 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-22 21:23:20,022 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-22 21:23:20,022 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 21:23:20,023 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 21:23:20,023 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-22 21:23:20,023 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 21:23:20,023 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 21:23:20,023 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-22 21:23:20,023 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-22 21:23:20,025 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 21:23:20,026 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 21:23:20,026 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-22 21:23:20,026 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-22 21:23:20,026 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-22 21:23:20,026 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-22 21:23:20,026 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-22 21:23:20,027 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-22 21:23:20,027 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_726af63b-78a9-424e-a8f0-bfff79f41066/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70ee165c745ab937eeca69bc762f66bcb3efe6fa [2018-11-22 21:23:20,067 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 21:23:20,078 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 21:23:20,081 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 21:23:20,083 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 21:23:20,083 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 21:23:20,084 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_726af63b-78a9-424e-a8f0-bfff79f41066/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1010_true-unreach-call.c [2018-11-22 21:23:20,138 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_726af63b-78a9-424e-a8f0-bfff79f41066/bin-2019/utaipan/data/ba6264f9b/8874ca3c6bb641fb93339580de3959b5/FLAG3ad552457 [2018-11-22 21:23:20,518 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 21:23:20,519 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_726af63b-78a9-424e-a8f0-bfff79f41066/sv-benchmarks/c/float-newlib/float_req_bl_1010_true-unreach-call.c [2018-11-22 21:23:20,524 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_726af63b-78a9-424e-a8f0-bfff79f41066/bin-2019/utaipan/data/ba6264f9b/8874ca3c6bb641fb93339580de3959b5/FLAG3ad552457 [2018-11-22 21:23:20,536 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_726af63b-78a9-424e-a8f0-bfff79f41066/bin-2019/utaipan/data/ba6264f9b/8874ca3c6bb641fb93339580de3959b5 [2018-11-22 21:23:20,539 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 21:23:20,540 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 21:23:20,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 21:23:20,541 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 21:23:20,545 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 21:23:20,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:23:20" (1/1) ... [2018-11-22 21:23:20,548 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69196480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:20, skipping insertion in model container [2018-11-22 21:23:20,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:23:20" (1/1) ... [2018-11-22 21:23:20,557 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 21:23:20,572 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 21:23:20,736 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 21:23:20,741 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 21:23:20,758 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 21:23:20,778 INFO L195 MainTranslator]: Completed translation [2018-11-22 21:23:20,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:20 WrapperNode [2018-11-22 21:23:20,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 21:23:20,779 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 21:23:20,779 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 21:23:20,780 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 21:23:20,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:20" (1/1) ... [2018-11-22 21:23:20,793 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:20" (1/1) ... [2018-11-22 21:23:20,799 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 21:23:20,799 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 21:23:20,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 21:23:20,799 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 21:23:20,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:20" (1/1) ... [2018-11-22 21:23:20,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:20" (1/1) ... [2018-11-22 21:23:20,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:20" (1/1) ... [2018-11-22 21:23:20,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:20" (1/1) ... [2018-11-22 21:23:20,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:20" (1/1) ... [2018-11-22 21:23:20,819 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:20" (1/1) ... [2018-11-22 21:23:20,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:20" (1/1) ... [2018-11-22 21:23:20,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 21:23:20,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 21:23:20,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 21:23:20,823 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 21:23:20,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_726af63b-78a9-424e-a8f0-bfff79f41066/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 21:23:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-22 21:23:20,929 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-22 21:23:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-22 21:23:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-22 21:23:20,930 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-22 21:23:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-22 21:23:20,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-22 21:23:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-22 21:23:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-22 21:23:20,930 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-22 21:23:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-22 21:23:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 21:23:20,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 21:23:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-22 21:23:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-22 21:23:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-22 21:23:21,102 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 21:23:21,102 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-22 21:23:21,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:23:21 BoogieIcfgContainer [2018-11-22 21:23:21,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 21:23:21,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-22 21:23:21,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-22 21:23:21,107 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-22 21:23:21,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:23:20" (1/3) ... [2018-11-22 21:23:21,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5270563e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:23:21, skipping insertion in model container [2018-11-22 21:23:21,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:23:20" (2/3) ... [2018-11-22 21:23:21,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5270563e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:23:21, skipping insertion in model container [2018-11-22 21:23:21,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:23:21" (3/3) ... [2018-11-22 21:23:21,111 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1010_true-unreach-call.c [2018-11-22 21:23:21,121 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-22 21:23:21,129 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-22 21:23:21,145 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-22 21:23:21,175 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-22 21:23:21,176 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-22 21:23:21,176 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-22 21:23:21,176 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-22 21:23:21,176 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 21:23:21,176 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 21:23:21,176 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-22 21:23:21,177 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 21:23:21,177 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-22 21:23:21,193 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2018-11-22 21:23:21,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-22 21:23:21,200 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:23:21,201 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:23:21,203 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:23:21,209 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:23:21,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1379682009, now seen corresponding path program 1 times [2018-11-22 21:23:21,213 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-22 21:23:21,214 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_726af63b-78a9-424e-a8f0-bfff79f41066/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-22 21:23:21,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:23:21,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:23:21,284 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:23:21,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:23:21,300 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-22 21:23:21,310 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:23:21,310 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-22 21:23:21,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-22 21:23:21,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-22 21:23:21,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-22 21:23:21,325 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 2 states. [2018-11-22 21:23:21,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:23:21,340 INFO L93 Difference]: Finished difference Result 46 states and 54 transitions. [2018-11-22 21:23:21,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-22 21:23:21,341 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-11-22 21:23:21,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:23:21,350 INFO L225 Difference]: With dead ends: 46 [2018-11-22 21:23:21,351 INFO L226 Difference]: Without dead ends: 23 [2018-11-22 21:23:21,354 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-22 21:23:21,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-22 21:23:21,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-11-22 21:23:21,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-22 21:23:21,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2018-11-22 21:23:21,383 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 20 [2018-11-22 21:23:21,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:23:21,383 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2018-11-22 21:23:21,384 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-22 21:23:21,384 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2018-11-22 21:23:21,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-22 21:23:21,384 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:23:21,385 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:23:21,385 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:23:21,385 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:23:21,386 INFO L82 PathProgramCache]: Analyzing trace with hash -241571996, now seen corresponding path program 1 times [2018-11-22 21:23:21,386 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-22 21:23:21,386 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_726af63b-78a9-424e-a8f0-bfff79f41066/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-22 21:23:21,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:23:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:23:21,442 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:23:21,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:23:21,779 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-22 21:23:21,790 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:23:21,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-22 21:23:21,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-22 21:23:21,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-22 21:23:21,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-11-22 21:23:21,793 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand 11 states. [2018-11-22 21:23:22,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:23:22,294 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2018-11-22 21:23:22,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-22 21:23:22,294 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 22 [2018-11-22 21:23:22,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:23:22,295 INFO L225 Difference]: With dead ends: 23 [2018-11-22 21:23:22,295 INFO L226 Difference]: Without dead ends: 0 [2018-11-22 21:23:22,296 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2018-11-22 21:23:22,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-22 21:23:22,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-22 21:23:22,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-22 21:23:22,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-22 21:23:22,297 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2018-11-22 21:23:22,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:23:22,297 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 21:23:22,298 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-22 21:23:22,298 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-22 21:23:22,298 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-22 21:23:22,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-22 21:23:22,383 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 12) no Hoare annotation was computed. [2018-11-22 21:23:22,384 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 12) the Hoare annotation is: true [2018-11-22 21:23:22,384 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 12) no Hoare annotation was computed. [2018-11-22 21:23:22,384 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-22 21:23:22,384 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-22 21:23:22,385 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-22 21:23:22,385 INFO L448 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 14 27) no Hoare annotation was computed. [2018-11-22 21:23:22,385 INFO L448 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 14 27) no Hoare annotation was computed. [2018-11-22 21:23:22,385 INFO L451 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 14 27) the Hoare annotation is: true [2018-11-22 21:23:22,385 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 25) no Hoare annotation was computed. [2018-11-22 21:23:22,385 INFO L448 ceAbstractionStarter]: For program point L21-1(lines 14 27) no Hoare annotation was computed. [2018-11-22 21:23:22,385 INFO L448 ceAbstractionStarter]: For program point L21-2(lines 21 25) no Hoare annotation was computed. [2018-11-22 21:23:22,386 INFO L448 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-11-22 21:23:22,386 INFO L444 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: (= fabs_float_~x |fabs_float_#in~x|) [2018-11-22 21:23:22,386 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-22 21:23:22,386 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-22 21:23:22,386 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-22 21:23:22,386 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-22 21:23:22,387 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 29 45) the Hoare annotation is: true [2018-11-22 21:23:22,387 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 29 45) no Hoare annotation was computed. [2018-11-22 21:23:22,387 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 40) no Hoare annotation was computed. [2018-11-22 21:23:22,387 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 29 45) no Hoare annotation was computed. [2018-11-22 21:23:22,387 INFO L448 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-11-22 21:23:22,388 INFO L444 ceAbstractionStarter]: At program point L39(line 39) the Hoare annotation is: (and (exists ((fabs_float_~ix~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) fabs_float_~ix~0) ((_ extract 30 23) fabs_float_~ix~0) ((_ extract 22 0) fabs_float_~ix~0)) (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) (= main_~res~0 (let ((.cse0 (bvand (_ bv2147483647 32) fabs_float_~ix~0))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))))) (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) [2018-11-22 21:23:22,391 INFO L448 ceAbstractionStarter]: For program point L39-1(lines 39 42) no Hoare annotation was computed. [2018-11-22 21:23:22,391 INFO L444 ceAbstractionStarter]: At program point L36(line 36) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2018-11-22 21:23:22,391 INFO L448 ceAbstractionStarter]: For program point L36-1(line 36) no Hoare annotation was computed. [2018-11-22 21:23:22,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 09:23:22 BoogieIcfgContainer [2018-11-22 21:23:22,404 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-22 21:23:22,405 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 21:23:22,405 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 21:23:22,405 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 21:23:22,405 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:23:21" (3/4) ... [2018-11-22 21:23:22,409 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-22 21:23:22,417 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-22 21:23:22,417 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-22 21:23:22,417 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-11-22 21:23:22,418 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-22 21:23:22,422 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-22 21:23:22,422 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-22 21:23:22,423 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-22 21:23:22,453 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-22 21:23:22,465 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_726af63b-78a9-424e-a8f0-bfff79f41066/bin-2019/utaipan/witness.graphml [2018-11-22 21:23:22,466 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 21:23:22,466 INFO L168 Benchmark]: Toolchain (without parser) took 1927.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 950.5 MB in the beginning and 1.0 GB in the end (delta: -92.5 MB). Peak memory consumption was 68.4 MB. Max. memory is 11.5 GB. [2018-11-22 21:23:22,467 INFO L168 Benchmark]: CDTParser took 0.19 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. [2018-11-22 21:23:22,468 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.51 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 934.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-22 21:23:22,468 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.60 ms. Allocated memory is still 1.0 GB. Free memory is still 934.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:23:22,468 INFO L168 Benchmark]: Boogie Preprocessor took 23.22 ms. Allocated memory is still 1.0 GB. Free memory is still 934.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:23:22,469 INFO L168 Benchmark]: RCFGBuilder took 280.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -202.4 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2018-11-22 21:23:22,469 INFO L168 Benchmark]: TraceAbstraction took 1300.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 93.7 MB). Peak memory consumption was 93.7 MB. Max. memory is 11.5 GB. [2018-11-22 21:23:22,469 INFO L168 Benchmark]: Witness Printer took 61.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:23:22,472 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 238.51 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 934.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.60 ms. Allocated memory is still 1.0 GB. Free memory is still 934.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.22 ms. Allocated memory is still 1.0 GB. Free memory is still 934.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 280.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.0 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -202.4 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1300.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 93.7 MB). Peak memory consumption was 93.7 MB. Max. memory is 11.5 GB. * Witness Printer took 61.22 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 40]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: x == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 27 locations, 1 error locations. SAFE Result, 1.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 40 SDtfs, 7 SDslu, 107 SDs, 0 SdLazy, 54 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 10 PreInvPairs, 12 NumberOfFragments, 51 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 40 ConstructedInterpolants, 6 QuantifiedInterpolants, 5317 SizeOfPredicates, 6 NumberOfNonLiveVariables, 103 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...