./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1252a_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_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1252a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/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 f441bd4a1f5705911b7315c074b39e665542818e ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1252a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/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 f441bd4a1f5705911b7315c074b39e665542818e ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 00:50:28,588 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 00:50:28,589 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 00:50:28,597 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 00:50:28,598 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 00:50:28,598 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 00:50:28,599 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 00:50:28,600 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 00:50:28,600 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 00:50:28,601 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 00:50:28,601 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 00:50:28,601 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 00:50:28,602 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 00:50:28,603 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 00:50:28,603 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 00:50:28,604 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 00:50:28,604 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 00:50:28,606 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 00:50:28,607 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 00:50:28,608 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 00:50:28,609 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 00:50:28,609 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 00:50:28,611 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 00:50:28,611 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 00:50:28,611 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 00:50:28,612 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 00:50:28,613 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 00:50:28,613 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 00:50:28,614 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 00:50:28,615 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 00:50:28,615 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 00:50:28,615 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 00:50:28,615 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 00:50:28,615 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 00:50:28,616 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 00:50:28,617 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 00:50:28,617 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 00:50:28,627 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 00:50:28,627 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 00:50:28,627 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 00:50:28,628 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 00:50:28,628 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 00:50:28,628 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 00:50:28,628 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 00:50:28,628 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 00:50:28,628 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 00:50:28,628 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 00:50:28,628 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 00:50:28,629 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 00:50:28,629 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 00:50:28,629 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 00:50:28,629 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 00:50:28,629 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 00:50:28,629 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 00:50:28,630 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 00:50:28,630 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 00:50:28,630 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 00:50:28,630 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 00:50:28,630 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 00:50:28,630 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 00:50:28,630 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 00:50:28,631 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 00:50:28,631 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 00:50:28,631 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 00:50:28,631 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 00:50:28,631 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 00:50:28,631 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 00:50:28,631 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 00:50:28,631 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 00:50:28,631 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 00:50:28,631 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 00:50:28,631 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 00:50:28,631 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 00:50:28,632 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 00:50:28,632 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_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/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 -> f441bd4a1f5705911b7315c074b39e665542818e [2018-11-23 00:50:28,653 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 00:50:28,660 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 00:50:28,662 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 00:50:28,663 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 00:50:28,664 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 00:50:28,664 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1252a_true-unreach-call.c [2018-11-23 00:50:28,699 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/bin-2019/utaipan/data/e5f651db9/ea0918e72f524b9f9729164aa939388b/FLAG8f84e34a8 [2018-11-23 00:50:28,997 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 00:50:28,998 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/sv-benchmarks/c/float-newlib/float_req_bl_1252a_true-unreach-call.c [2018-11-23 00:50:29,002 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/bin-2019/utaipan/data/e5f651db9/ea0918e72f524b9f9729164aa939388b/FLAG8f84e34a8 [2018-11-23 00:50:29,010 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/bin-2019/utaipan/data/e5f651db9/ea0918e72f524b9f9729164aa939388b [2018-11-23 00:50:29,011 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 00:50:29,012 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 00:50:29,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 00:50:29,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 00:50:29,016 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 00:50:29,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:50:29" (1/1) ... [2018-11-23 00:50:29,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3436f9d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:29, skipping insertion in model container [2018-11-23 00:50:29,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:50:29" (1/1) ... [2018-11-23 00:50:29,024 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 00:50:29,037 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 00:50:29,150 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 00:50:29,152 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 00:50:29,168 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 00:50:29,181 INFO L195 MainTranslator]: Completed translation [2018-11-23 00:50:29,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:29 WrapperNode [2018-11-23 00:50:29,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 00:50:29,182 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 00:50:29,182 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 00:50:29,182 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 00:50:29,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:29" (1/1) ... [2018-11-23 00:50:29,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:29" (1/1) ... [2018-11-23 00:50:29,197 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 00:50:29,197 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 00:50:29,197 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 00:50:29,197 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 00:50:29,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:29" (1/1) ... [2018-11-23 00:50:29,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:29" (1/1) ... [2018-11-23 00:50:29,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:29" (1/1) ... [2018-11-23 00:50:29,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:29" (1/1) ... [2018-11-23 00:50:29,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:29" (1/1) ... [2018-11-23 00:50:29,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:29" (1/1) ... [2018-11-23 00:50:29,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:29" (1/1) ... [2018-11-23 00:50:29,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 00:50:29,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 00:50:29,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 00:50:29,256 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 00:50:29,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/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 [2018-11-23 00:50:29,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 00:50:29,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 00:50:29,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-23 00:50:29,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 00:50:29,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 00:50:29,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 00:50:29,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 00:50:29,295 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 00:50:29,296 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 00:50:29,296 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_float [2018-11-23 00:50:29,296 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_float [2018-11-23 00:50:29,296 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2018-11-23 00:50:29,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2018-11-23 00:50:29,296 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-23 00:50:29,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-23 00:50:29,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 00:50:29,502 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 00:50:29,502 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-23 00:50:29,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:50:29 BoogieIcfgContainer [2018-11-23 00:50:29,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 00:50:29,503 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 00:50:29,503 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 00:50:29,506 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 00:50:29,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:50:29" (1/3) ... [2018-11-23 00:50:29,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f3273a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:50:29, skipping insertion in model container [2018-11-23 00:50:29,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:29" (2/3) ... [2018-11-23 00:50:29,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f3273a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:50:29, skipping insertion in model container [2018-11-23 00:50:29,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:50:29" (3/3) ... [2018-11-23 00:50:29,510 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1252a_true-unreach-call.c [2018-11-23 00:50:29,519 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 00:50:29,525 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 00:50:29,538 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 00:50:29,565 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 00:50:29,565 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 00:50:29,565 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 00:50:29,565 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 00:50:29,565 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 00:50:29,565 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 00:50:29,565 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 00:50:29,566 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 00:50:29,580 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2018-11-23 00:50:29,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-23 00:50:29,585 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:50:29,586 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] [2018-11-23 00:50:29,588 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:50:29,592 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:50:29,592 INFO L82 PathProgramCache]: Analyzing trace with hash -278474869, now seen corresponding path program 1 times [2018-11-23 00:50:29,594 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:50:29,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:50:29,633 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:50:29,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:50:29,634 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:50:29,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:50:29,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:50:29,700 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:50:29,700 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 00:50:29,700 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 00:50:29,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 00:50:29,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 00:50:29,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 00:50:29,713 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2018-11-23 00:50:29,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:50:29,728 INFO L93 Difference]: Finished difference Result 79 states and 107 transitions. [2018-11-23 00:50:29,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 00:50:29,729 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-23 00:50:29,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:50:29,735 INFO L225 Difference]: With dead ends: 79 [2018-11-23 00:50:29,735 INFO L226 Difference]: Without dead ends: 40 [2018-11-23 00:50:29,738 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 [2018-11-23 00:50:29,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-23 00:50:29,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-11-23 00:50:29,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-23 00:50:29,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2018-11-23 00:50:29,765 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 22 [2018-11-23 00:50:29,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:50:29,765 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2018-11-23 00:50:29,765 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 00:50:29,765 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2018-11-23 00:50:29,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-23 00:50:29,767 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:50:29,767 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] [2018-11-23 00:50:29,767 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:50:29,767 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:50:29,768 INFO L82 PathProgramCache]: Analyzing trace with hash -428418178, now seen corresponding path program 1 times [2018-11-23 00:50:29,768 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:50:29,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:50:29,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:50:29,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:50:29,769 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:50:29,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:50:29,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:50:29,825 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:50:29,825 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 00:50:29,826 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 00:50:29,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 00:50:29,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 00:50:29,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 00:50:29,827 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 4 states. [2018-11-23 00:50:29,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:50:29,849 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2018-11-23 00:50:29,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 00:50:29,850 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-11-23 00:50:29,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:50:29,852 INFO L225 Difference]: With dead ends: 59 [2018-11-23 00:50:29,852 INFO L226 Difference]: Without dead ends: 44 [2018-11-23 00:50:29,853 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 00:50:29,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-23 00:50:29,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-11-23 00:50:29,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-23 00:50:29,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2018-11-23 00:50:29,860 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 23 [2018-11-23 00:50:29,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:50:29,860 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2018-11-23 00:50:29,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 00:50:29,861 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2018-11-23 00:50:29,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-23 00:50:29,861 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:50:29,862 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, 1, 1, 1] [2018-11-23 00:50:29,862 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:50:29,862 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:50:29,862 INFO L82 PathProgramCache]: Analyzing trace with hash 328113906, now seen corresponding path program 1 times [2018-11-23 00:50:29,862 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:50:29,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:50:29,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:50:29,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:50:29,863 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:50:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:50:29,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:50:29,909 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:50:29,910 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 00:50:29,910 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 00:50:29,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 00:50:29,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 00:50:29,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 00:50:29,911 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand 4 states. [2018-11-23 00:50:29,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:50:29,946 INFO L93 Difference]: Finished difference Result 63 states and 74 transitions. [2018-11-23 00:50:29,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 00:50:29,946 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2018-11-23 00:50:29,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:50:29,947 INFO L225 Difference]: With dead ends: 63 [2018-11-23 00:50:29,947 INFO L226 Difference]: Without dead ends: 48 [2018-11-23 00:50:29,948 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 00:50:29,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-11-23 00:50:29,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2018-11-23 00:50:29,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-23 00:50:29,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2018-11-23 00:50:29,953 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 26 [2018-11-23 00:50:29,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:50:29,953 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2018-11-23 00:50:29,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 00:50:29,954 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2018-11-23 00:50:29,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-23 00:50:29,954 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:50:29,954 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, 1, 1, 1] [2018-11-23 00:50:29,954 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:50:29,955 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:50:29,955 INFO L82 PathProgramCache]: Analyzing trace with hash -1468837453, now seen corresponding path program 1 times [2018-11-23 00:50:29,955 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 00:50:29,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:50:29,956 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:50:29,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 00:50:29,956 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 00:50:29,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:50:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 00:50:30,000 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); VAL [|#NULL.base|=4286578695, |#NULL.offset|=4286578690, |old(#NULL.base)|=4286578695, |old(#NULL.offset)|=4286578690] [?] #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=4286578695, |old(#NULL.offset)|=4286578690] [?] assume true; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=4286578695, |old(#NULL.offset)|=4286578690] [?] RET #90#return; VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret10 := main(); VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] ~x~0 := ~someUnaryFLOAToperation(0.0);~y~0 := 0.0; VAL [main_~y~0=0.0, |#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret7 := fmax_float(~x~0, ~y~0); VAL [|#NULL.base|=0, |#NULL.offset|=0, |fmax_float_#in~x|=4286578691.0, |fmax_float_#in~y|=0.0] [?] ~x := #in~x;~y := #in~y; VAL [fmax_float_~x=4286578691.0, fmax_float_~y=0.0, |#NULL.base|=0, |#NULL.offset|=0, |fmax_float_#in~x|=4286578691.0, |fmax_float_#in~y|=0.0] [?] CALL call #t~ret2 := __fpclassify_float(~x); VAL [|#NULL.base|=0, |#NULL.offset|=0, |__fpclassify_float_#in~x|=4286578691.0] [?] ~x := #in~x;havoc ~w~0; VAL [__fpclassify_float_~x=4286578691.0, |#NULL.base|=0, |#NULL.offset|=0, |__fpclassify_float_#in~x|=4286578691.0] [?] 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);~w~0 := #t~mem0;call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4);havoc #t~union1;havoc #t~mem0;call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset);havoc ~#gf_u~0.base, ~#gf_u~0.offset; VAL [__fpclassify_float_~w~0=4286578689, __fpclassify_float_~x=4286578691.0, |#NULL.base|=0, |#NULL.offset|=0, |__fpclassify_float_#in~x|=4286578691.0] [?] goto; VAL [__fpclassify_float_~w~0=4286578689, __fpclassify_float_~x=4286578691.0, |#NULL.base|=0, |#NULL.offset|=0, |__fpclassify_float_#in~x|=4286578691.0] [?] assume !(0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296); VAL [__fpclassify_float_~w~0=4286578689, __fpclassify_float_~x=4286578691.0, |#NULL.base|=0, |#NULL.offset|=0, |__fpclassify_float_#in~x|=4286578691.0] [?] assume !((~w~0 % 4294967296 >= 8388608 && ~w~0 % 4294967296 <= 2139095039) || (~w~0 % 4294967296 >= 2155872256 && ~w~0 % 4294967296 <= 4286578687)); VAL [__fpclassify_float_~w~0=4286578689, __fpclassify_float_~x=4286578691.0, |#NULL.base|=0, |#NULL.offset|=0, |__fpclassify_float_#in~x|=4286578691.0] [?] assume !((~w~0 % 4294967296 >= 1 && ~w~0 % 4294967296 <= 8388607) || (~w~0 % 4294967296 >= 2147483649 && ~w~0 % 4294967296 <= 2155872255)); VAL [__fpclassify_float_~w~0=4286578689, __fpclassify_float_~x=4286578691.0, |#NULL.base|=0, |#NULL.offset|=0, |__fpclassify_float_#in~x|=4286578691.0] [?] assume !(2139095040 == ~w~0 % 4294967296 || 4286578688 == ~w~0 % 4294967296);#res := 0; VAL [__fpclassify_float_~w~0=4286578689, __fpclassify_float_~x=4286578691.0, |#NULL.base|=0, |#NULL.offset|=0, |__fpclassify_float_#in~x|=4286578691.0, |__fpclassify_float_#res|=0] [?] assume true; VAL [__fpclassify_float_~w~0=4286578689, __fpclassify_float_~x=4286578691.0, |#NULL.base|=0, |#NULL.offset|=0, |__fpclassify_float_#in~x|=4286578691.0, |__fpclassify_float_#res|=0] [?] RET #98#return; VAL [fmax_float_~x=4286578691.0, fmax_float_~y=0.0, |#NULL.base|=0, |#NULL.offset|=0, |fmax_float_#in~x|=4286578691.0, |fmax_float_#in~y|=0.0, |fmax_float_#t~ret2|=0] [?] assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; VAL [fmax_float_~x=4286578691.0, fmax_float_~y=0.0, |#NULL.base|=0, |#NULL.offset|=0, |fmax_float_#in~x|=4286578691.0, |fmax_float_#in~y|=0.0, |fmax_float_#t~ret2|=0] [?] assume 0 == #t~ret2;havoc #t~ret2;#res := ~y; VAL [fmax_float_~x=4286578691.0, fmax_float_~y=0.0, |#NULL.base|=0, |#NULL.offset|=0, |fmax_float_#in~x|=4286578691.0, |fmax_float_#in~y|=0.0, |fmax_float_#res|=0.0] [?] assume true; VAL [fmax_float_~x=4286578691.0, fmax_float_~y=0.0, |#NULL.base|=0, |#NULL.offset|=0, |fmax_float_#in~x|=4286578691.0, |fmax_float_#in~y|=0.0, |fmax_float_#res|=0.0] [?] RET #94#return; VAL [main_~x~0=4286578691.0, main_~y~0=0.0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~ret7|=0.0] [?] ~res~0 := #t~ret7;havoc #t~ret7;#t~short9 := ~someBinaryFLOATComparisonOperation(~res~0, 0.0); VAL [main_~res~0=0.0, main_~x~0=4286578691.0, main_~y~0=0.0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~short9|=false] [?] assume !#t~short9; VAL [main_~res~0=0.0, main_~x~0=4286578691.0, main_~y~0=0.0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~short9|=false] [?] assume !#t~short9;havoc #t~short9;havoc #t~ret8; VAL [main_~res~0=0.0, main_~x~0=4286578691.0, main_~y~0=0.0, |#NULL.base|=0, |#NULL.offset|=0] [?] assume !false; VAL [main_~res~0=0.0, main_~x~0=4286578691.0, main_~y~0=0.0, |#NULL.base|=0, |#NULL.offset|=0] [?] CALL call ULTIMATE.init(); VAL [#NULL.base=4286578695, #NULL.offset=4286578690, old(#NULL.base)=4286578695, old(#NULL.offset)=4286578690] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=4286578695, old(#NULL.offset)=4286578690] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=4286578695, old(#NULL.offset)=4286578690] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret10 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L72] ~x~0 := ~someUnaryFLOAToperation(0.0); [L73] ~y~0 := 0.0; VAL [#NULL.base=0, #NULL.offset=0, ~y~0=0.0] [L75] CALL call #t~ret7 := fmax_float(~x~0, ~y~0); VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL.base=0, #NULL.offset=0] [L42-L51] ~x := #in~x; [L42-L51] ~y := #in~y; VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL.base=0, #NULL.offset=0, ~x=4.286578691E9, ~y=0.0] [L43] CALL call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=4.286578691E9, #NULL.base=0, #NULL.offset=0] [L19-L40] ~x := #in~x; [L20] havoc ~w~0; VAL [#in~x=4.286578691E9, #NULL.base=0, #NULL.offset=0, ~x=4.286578691E9] [L23] call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.alloc(4); [L24] call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L25] call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4); [L25] ~w~0 := #t~mem0; [L25] call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L25] havoc #t~union1; [L25] havoc #t~mem0; [L23] call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); [L23] havoc ~#gf_u~0.base, ~#gf_u~0.offset; VAL [#in~x=4.286578691E9, #NULL.base=0, #NULL.offset=0, ~w~0=4286578689, ~x=4.286578691E9] [L28-L39] assume !(0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296); VAL [#in~x=4.286578691E9, #NULL.base=0, #NULL.offset=0, ~w~0=4286578689, ~x=4.286578691E9] [L30-L39] assume !((~w~0 % 4294967296 >= 8388608 && ~w~0 % 4294967296 <= 2139095039) || (~w~0 % 4294967296 >= 2155872256 && ~w~0 % 4294967296 <= 4286578687)); VAL [#in~x=4.286578691E9, #NULL.base=0, #NULL.offset=0, ~w~0=4286578689, ~x=4.286578691E9] [L33-L39] assume !((~w~0 % 4294967296 >= 1 && ~w~0 % 4294967296 <= 8388607) || (~w~0 % 4294967296 >= 2147483649 && ~w~0 % 4294967296 <= 2155872255)); VAL [#in~x=4.286578691E9, #NULL.base=0, #NULL.offset=0, ~w~0=4286578689, ~x=4.286578691E9] [L36-L39] assume !(2139095040 == ~w~0 % 4294967296 || 4286578688 == ~w~0 % 4294967296); [L39] #res := 0; VAL [#in~x=4.286578691E9, #NULL.base=0, #NULL.offset=0, #res=0, ~w~0=4286578689, ~x=4.286578691E9] [L19-L40] ensures true; VAL [#in~x=4.286578691E9, #NULL.base=0, #NULL.offset=0, #res=0, ~w~0=4286578689, ~x=4.286578691E9] [L43] RET call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL.base=0, #NULL.offset=0, #t~ret2=0, ~x=4.286578691E9, ~y=0.0] [L43] assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL.base=0, #NULL.offset=0, #t~ret2=0, ~x=4.286578691E9, ~y=0.0] [L43-L45] assume 0 == #t~ret2; [L43] havoc #t~ret2; [L44] #res := ~y; VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL.base=0, #NULL.offset=0, #res=0.0, ~x=4.286578691E9, ~y=0.0] [L42-L51] ensures true; VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL.base=0, #NULL.offset=0, #res=0.0, ~x=4.286578691E9, ~y=0.0] [L75] RET call #t~ret7 := fmax_float(~x~0, ~y~0); VAL [#NULL.base=0, #NULL.offset=0, #t~ret7=0.0, ~x~0=4.286578691E9, ~y~0=0.0] [L75] ~res~0 := #t~ret7; [L75] havoc #t~ret7; [L78] #t~short9 := ~someBinaryFLOATComparisonOperation(~res~0, 0.0); VAL [#NULL.base=0, #NULL.offset=0, #t~short9=false, ~res~0=0.0, ~x~0=4.286578691E9, ~y~0=0.0] [L78] assume !#t~short9; VAL [#NULL.base=0, #NULL.offset=0, #t~short9=false, ~res~0=0.0, ~x~0=4.286578691E9, ~y~0=0.0] [L78-L81] assume !#t~short9; [L78] havoc #t~short9; [L78] havoc #t~ret8; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=0.0, ~x~0=4.286578691E9, ~y~0=0.0] [L79] assert false; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=0.0, ~x~0=4.286578691E9, ~y~0=0.0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL.base=4286578695, #NULL.offset=4286578690, old(#NULL.base)=4286578695, old(#NULL.offset)=4286578690] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=4286578695, old(#NULL.offset)=4286578690] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=4286578695, old(#NULL.offset)=4286578690] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret10 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L72] ~x~0 := ~someUnaryFLOAToperation(0.0); [L73] ~y~0 := 0.0; VAL [#NULL.base=0, #NULL.offset=0, ~y~0=0.0] [L75] CALL call #t~ret7 := fmax_float(~x~0, ~y~0); VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL.base=0, #NULL.offset=0] [L42-L51] ~x := #in~x; [L42-L51] ~y := #in~y; VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL.base=0, #NULL.offset=0, ~x=4.286578691E9, ~y=0.0] [L43] CALL call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=4.286578691E9, #NULL.base=0, #NULL.offset=0] [L19-L40] ~x := #in~x; [L20] havoc ~w~0; VAL [#in~x=4.286578691E9, #NULL.base=0, #NULL.offset=0, ~x=4.286578691E9] [L23] call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.alloc(4); [L24] call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L25] call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4); [L25] ~w~0 := #t~mem0; [L25] call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L25] havoc #t~union1; [L25] havoc #t~mem0; [L23] call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); [L23] havoc ~#gf_u~0.base, ~#gf_u~0.offset; VAL [#in~x=4.286578691E9, #NULL.base=0, #NULL.offset=0, ~w~0=4286578689, ~x=4.286578691E9] [L28-L39] assume !(0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296); VAL [#in~x=4.286578691E9, #NULL.base=0, #NULL.offset=0, ~w~0=4286578689, ~x=4.286578691E9] [L30-L39] assume !((~w~0 % 4294967296 >= 8388608 && ~w~0 % 4294967296 <= 2139095039) || (~w~0 % 4294967296 >= 2155872256 && ~w~0 % 4294967296 <= 4286578687)); VAL [#in~x=4.286578691E9, #NULL.base=0, #NULL.offset=0, ~w~0=4286578689, ~x=4.286578691E9] [L33-L39] assume !((~w~0 % 4294967296 >= 1 && ~w~0 % 4294967296 <= 8388607) || (~w~0 % 4294967296 >= 2147483649 && ~w~0 % 4294967296 <= 2155872255)); VAL [#in~x=4.286578691E9, #NULL.base=0, #NULL.offset=0, ~w~0=4286578689, ~x=4.286578691E9] [L36-L39] assume !(2139095040 == ~w~0 % 4294967296 || 4286578688 == ~w~0 % 4294967296); [L39] #res := 0; VAL [#in~x=4.286578691E9, #NULL.base=0, #NULL.offset=0, #res=0, ~w~0=4286578689, ~x=4.286578691E9] [L19-L40] ensures true; VAL [#in~x=4.286578691E9, #NULL.base=0, #NULL.offset=0, #res=0, ~w~0=4286578689, ~x=4.286578691E9] [L43] RET call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL.base=0, #NULL.offset=0, #t~ret2=0, ~x=4.286578691E9, ~y=0.0] [L43] assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL.base=0, #NULL.offset=0, #t~ret2=0, ~x=4.286578691E9, ~y=0.0] [L43-L45] assume 0 == #t~ret2; [L43] havoc #t~ret2; [L44] #res := ~y; VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL.base=0, #NULL.offset=0, #res=0.0, ~x=4.286578691E9, ~y=0.0] [L42-L51] ensures true; VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL.base=0, #NULL.offset=0, #res=0.0, ~x=4.286578691E9, ~y=0.0] [L75] RET call #t~ret7 := fmax_float(~x~0, ~y~0); VAL [#NULL.base=0, #NULL.offset=0, #t~ret7=0.0, ~x~0=4.286578691E9, ~y~0=0.0] [L75] ~res~0 := #t~ret7; [L75] havoc #t~ret7; [L78] #t~short9 := ~someBinaryFLOATComparisonOperation(~res~0, 0.0); VAL [#NULL.base=0, #NULL.offset=0, #t~short9=false, ~res~0=0.0, ~x~0=4.286578691E9, ~y~0=0.0] [L78] assume !#t~short9; VAL [#NULL.base=0, #NULL.offset=0, #t~short9=false, ~res~0=0.0, ~x~0=4.286578691E9, ~y~0=0.0] [L78-L81] assume !#t~short9; [L78] havoc #t~short9; [L78] havoc #t~ret8; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=0.0, ~x~0=4.286578691E9, ~y~0=0.0] [L79] assert false; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=0.0, ~x~0=4.286578691E9, ~y~0=0.0] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=4286578695, #NULL!offset=4286578690, old(#NULL!base)=4286578695, old(#NULL!offset)=4286578690] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=4286578695, old(#NULL!offset)=4286578690] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret10 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L72] ~x~0 := ~someUnaryFLOAToperation(0.0); [L73] ~y~0 := 0.0; VAL [#NULL!base=0, #NULL!offset=0, ~y~0=0.0] [L75] CALL call #t~ret7 := fmax_float(~x~0, ~y~0); VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL!base=0, #NULL!offset=0] [L42-L51] ~x := #in~x; [L42-L51] ~y := #in~y; VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL!base=0, #NULL!offset=0, ~x=4.286578691E9, ~y=0.0] [L43] CALL call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=4.286578691E9, #NULL!base=0, #NULL!offset=0] [L19-L40] ~x := #in~x; [L20] havoc ~w~0; VAL [#in~x=4.286578691E9, #NULL!base=0, #NULL!offset=0, ~x=4.286578691E9] [L23] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L24] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L25] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L25] ~w~0 := #t~mem0; [L25] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L25] havoc #t~union1; [L25] havoc #t~mem0; [L23] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L23] havoc ~#gf_u~0; VAL [#in~x=4.286578691E9, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=4.286578691E9] [L28] COND FALSE !(0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296) VAL [#in~x=4.286578691E9, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=4.286578691E9] [L30-L31] COND FALSE !((~w~0 % 4294967296 >= 8388608 && ~w~0 % 4294967296 <= 2139095039) || (~w~0 % 4294967296 >= 2155872256 && ~w~0 % 4294967296 <= 4286578687)) VAL [#in~x=4.286578691E9, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=4.286578691E9] [L33-L34] COND FALSE !((~w~0 % 4294967296 >= 1 && ~w~0 % 4294967296 <= 8388607) || (~w~0 % 4294967296 >= 2147483649 && ~w~0 % 4294967296 <= 2155872255)) VAL [#in~x=4.286578691E9, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=4.286578691E9] [L36] COND FALSE !(2139095040 == ~w~0 % 4294967296 || 4286578688 == ~w~0 % 4294967296) [L39] #res := 0; VAL [#in~x=4.286578691E9, #NULL!base=0, #NULL!offset=0, #res=0, ~w~0=4286578689, ~x=4.286578691E9] [L43] RET call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL!base=0, #NULL!offset=0, #t~ret2=0, ~x=4.286578691E9, ~y=0.0] [L43] assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL!base=0, #NULL!offset=0, #t~ret2=0, ~x=4.286578691E9, ~y=0.0] [L43] COND TRUE 0 == #t~ret2 [L43] havoc #t~ret2; [L44] #res := ~y; VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL!base=0, #NULL!offset=0, #res=0.0, ~x=4.286578691E9, ~y=0.0] [L75] RET call #t~ret7 := fmax_float(~x~0, ~y~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret7=0.0, ~x~0=4.286578691E9, ~y~0=0.0] [L75] ~res~0 := #t~ret7; [L75] havoc #t~ret7; [L78] #t~short9 := ~someBinaryFLOATComparisonOperation(~res~0, 0.0); VAL [#NULL!base=0, #NULL!offset=0, #t~short9=false, ~res~0=0.0, ~x~0=4.286578691E9, ~y~0=0.0] [L78] COND FALSE !(#t~short9) VAL [#NULL!base=0, #NULL!offset=0, #t~short9=false, ~res~0=0.0, ~x~0=4.286578691E9, ~y~0=0.0] [L78] COND TRUE !#t~short9 [L78] havoc #t~short9; [L78] havoc #t~ret8; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=0.0, ~x~0=4.286578691E9, ~y~0=0.0] [L79] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=0.0, ~x~0=4.286578691E9, ~y~0=0.0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=4286578695, #NULL!offset=4286578690, old(#NULL!base)=4286578695, old(#NULL!offset)=4286578690] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=4286578695, old(#NULL!offset)=4286578690] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret10 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L72] ~x~0 := ~someUnaryFLOAToperation(0.0); [L73] ~y~0 := 0.0; VAL [#NULL!base=0, #NULL!offset=0, ~y~0=0.0] [L75] CALL call #t~ret7 := fmax_float(~x~0, ~y~0); VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL!base=0, #NULL!offset=0] [L42-L51] ~x := #in~x; [L42-L51] ~y := #in~y; VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL!base=0, #NULL!offset=0, ~x=4.286578691E9, ~y=0.0] [L43] CALL call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=4.286578691E9, #NULL!base=0, #NULL!offset=0] [L19-L40] ~x := #in~x; [L20] havoc ~w~0; VAL [#in~x=4.286578691E9, #NULL!base=0, #NULL!offset=0, ~x=4.286578691E9] [L23] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L24] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L25] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L25] ~w~0 := #t~mem0; [L25] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L25] havoc #t~union1; [L25] havoc #t~mem0; [L23] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L23] havoc ~#gf_u~0; VAL [#in~x=4.286578691E9, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=4.286578691E9] [L28] COND FALSE !(0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296) VAL [#in~x=4.286578691E9, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=4.286578691E9] [L30-L31] COND FALSE !((~w~0 % 4294967296 >= 8388608 && ~w~0 % 4294967296 <= 2139095039) || (~w~0 % 4294967296 >= 2155872256 && ~w~0 % 4294967296 <= 4286578687)) VAL [#in~x=4.286578691E9, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=4.286578691E9] [L33-L34] COND FALSE !((~w~0 % 4294967296 >= 1 && ~w~0 % 4294967296 <= 8388607) || (~w~0 % 4294967296 >= 2147483649 && ~w~0 % 4294967296 <= 2155872255)) VAL [#in~x=4.286578691E9, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=4.286578691E9] [L36] COND FALSE !(2139095040 == ~w~0 % 4294967296 || 4286578688 == ~w~0 % 4294967296) [L39] #res := 0; VAL [#in~x=4.286578691E9, #NULL!base=0, #NULL!offset=0, #res=0, ~w~0=4286578689, ~x=4.286578691E9] [L43] RET call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL!base=0, #NULL!offset=0, #t~ret2=0, ~x=4.286578691E9, ~y=0.0] [L43] assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL!base=0, #NULL!offset=0, #t~ret2=0, ~x=4.286578691E9, ~y=0.0] [L43] COND TRUE 0 == #t~ret2 [L43] havoc #t~ret2; [L44] #res := ~y; VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL!base=0, #NULL!offset=0, #res=0.0, ~x=4.286578691E9, ~y=0.0] [L75] RET call #t~ret7 := fmax_float(~x~0, ~y~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret7=0.0, ~x~0=4.286578691E9, ~y~0=0.0] [L75] ~res~0 := #t~ret7; [L75] havoc #t~ret7; [L78] #t~short9 := ~someBinaryFLOATComparisonOperation(~res~0, 0.0); VAL [#NULL!base=0, #NULL!offset=0, #t~short9=false, ~res~0=0.0, ~x~0=4.286578691E9, ~y~0=0.0] [L78] COND FALSE !(#t~short9) VAL [#NULL!base=0, #NULL!offset=0, #t~short9=false, ~res~0=0.0, ~x~0=4.286578691E9, ~y~0=0.0] [L78] COND TRUE !#t~short9 [L78] havoc #t~short9; [L78] havoc #t~ret8; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=0.0, ~x~0=4.286578691E9, ~y~0=0.0] [L79] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=0.0, ~x~0=4.286578691E9, ~y~0=0.0] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=4286578695, #NULL!offset=4286578690, old(#NULL!base)=4286578695, old(#NULL!offset)=4286578690] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=4286578695, old(#NULL!offset)=4286578690] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret10 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L72] ~x~0 := ~someUnaryFLOAToperation(0.0); [L73] ~y~0 := 0.0; VAL [#NULL!base=0, #NULL!offset=0, ~y~0=0.0] [L75] CALL call #t~ret7 := fmax_float(~x~0, ~y~0); VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL!base=0, #NULL!offset=0] [L42-L51] ~x := #in~x; [L42-L51] ~y := #in~y; VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL!base=0, #NULL!offset=0, ~x=4.286578691E9, ~y=0.0] [L43] CALL call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=4.286578691E9, #NULL!base=0, #NULL!offset=0] [L19-L40] ~x := #in~x; [L20] havoc ~w~0; VAL [#in~x=4.286578691E9, #NULL!base=0, #NULL!offset=0, ~x=4.286578691E9] [L23] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L24] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L25] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L25] ~w~0 := #t~mem0; [L25] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L25] havoc #t~union1; [L25] havoc #t~mem0; [L23] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L23] havoc ~#gf_u~0; VAL [#in~x=4.286578691E9, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=4.286578691E9] [L28] COND FALSE !(0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296) VAL [#in~x=4.286578691E9, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=4.286578691E9] [L30-L31] COND FALSE !((~w~0 % 4294967296 >= 8388608 && ~w~0 % 4294967296 <= 2139095039) || (~w~0 % 4294967296 >= 2155872256 && ~w~0 % 4294967296 <= 4286578687)) VAL [#in~x=4.286578691E9, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=4.286578691E9] [L33-L34] COND FALSE !((~w~0 % 4294967296 >= 1 && ~w~0 % 4294967296 <= 8388607) || (~w~0 % 4294967296 >= 2147483649 && ~w~0 % 4294967296 <= 2155872255)) VAL [#in~x=4.286578691E9, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=4.286578691E9] [L36] COND FALSE !(2139095040 == ~w~0 % 4294967296 || 4286578688 == ~w~0 % 4294967296) [L39] #res := 0; VAL [#in~x=4.286578691E9, #NULL!base=0, #NULL!offset=0, #res=0, ~w~0=4286578689, ~x=4.286578691E9] [L43] RET call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL!base=0, #NULL!offset=0, #t~ret2=0, ~x=4.286578691E9, ~y=0.0] [L43] assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL!base=0, #NULL!offset=0, #t~ret2=0, ~x=4.286578691E9, ~y=0.0] [L43] COND TRUE 0 == #t~ret2 [L43] havoc #t~ret2; [L44] #res := ~y; VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL!base=0, #NULL!offset=0, #res=0.0, ~x=4.286578691E9, ~y=0.0] [L75] RET call #t~ret7 := fmax_float(~x~0, ~y~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret7=0.0, ~x~0=4.286578691E9, ~y~0=0.0] [L75] ~res~0 := #t~ret7; [L75] havoc #t~ret7; [L78] #t~short9 := ~someBinaryFLOATComparisonOperation(~res~0, 0.0); VAL [#NULL!base=0, #NULL!offset=0, #t~short9=false, ~res~0=0.0, ~x~0=4.286578691E9, ~y~0=0.0] [L78] COND FALSE !(#t~short9) VAL [#NULL!base=0, #NULL!offset=0, #t~short9=false, ~res~0=0.0, ~x~0=4.286578691E9, ~y~0=0.0] [L78] COND TRUE !#t~short9 [L78] havoc #t~short9; [L78] havoc #t~ret8; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=0.0, ~x~0=4.286578691E9, ~y~0=0.0] [L79] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=0.0, ~x~0=4.286578691E9, ~y~0=0.0] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=4286578695, #NULL!offset=4286578690, old(#NULL!base)=4286578695, old(#NULL!offset)=4286578690] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=4286578695, old(#NULL!offset)=4286578690] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret10 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L72] ~x~0 := ~someUnaryFLOAToperation(0.0); [L73] ~y~0 := 0.0; VAL [#NULL!base=0, #NULL!offset=0, ~y~0=0.0] [L75] CALL call #t~ret7 := fmax_float(~x~0, ~y~0); VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL!base=0, #NULL!offset=0] [L42-L51] ~x := #in~x; [L42-L51] ~y := #in~y; VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL!base=0, #NULL!offset=0, ~x=4.286578691E9, ~y=0.0] [L43] CALL call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=4.286578691E9, #NULL!base=0, #NULL!offset=0] [L19-L40] ~x := #in~x; [L20] havoc ~w~0; VAL [#in~x=4.286578691E9, #NULL!base=0, #NULL!offset=0, ~x=4.286578691E9] [L23] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L24] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L25] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L25] ~w~0 := #t~mem0; [L25] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L25] havoc #t~union1; [L25] havoc #t~mem0; [L23] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L23] havoc ~#gf_u~0; VAL [#in~x=4.286578691E9, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=4.286578691E9] [L28] COND FALSE !(0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296) VAL [#in~x=4.286578691E9, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=4.286578691E9] [L30-L31] COND FALSE !((~w~0 % 4294967296 >= 8388608 && ~w~0 % 4294967296 <= 2139095039) || (~w~0 % 4294967296 >= 2155872256 && ~w~0 % 4294967296 <= 4286578687)) VAL [#in~x=4.286578691E9, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=4.286578691E9] [L33-L34] COND FALSE !((~w~0 % 4294967296 >= 1 && ~w~0 % 4294967296 <= 8388607) || (~w~0 % 4294967296 >= 2147483649 && ~w~0 % 4294967296 <= 2155872255)) VAL [#in~x=4.286578691E9, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=4.286578691E9] [L36] COND FALSE !(2139095040 == ~w~0 % 4294967296 || 4286578688 == ~w~0 % 4294967296) [L39] #res := 0; VAL [#in~x=4.286578691E9, #NULL!base=0, #NULL!offset=0, #res=0, ~w~0=4286578689, ~x=4.286578691E9] [L43] RET call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL!base=0, #NULL!offset=0, #t~ret2=0, ~x=4.286578691E9, ~y=0.0] [L43] assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL!base=0, #NULL!offset=0, #t~ret2=0, ~x=4.286578691E9, ~y=0.0] [L43] COND TRUE 0 == #t~ret2 [L43] havoc #t~ret2; [L44] #res := ~y; VAL [#in~x=4.286578691E9, #in~y=0.0, #NULL!base=0, #NULL!offset=0, #res=0.0, ~x=4.286578691E9, ~y=0.0] [L75] RET call #t~ret7 := fmax_float(~x~0, ~y~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret7=0.0, ~x~0=4.286578691E9, ~y~0=0.0] [L75] ~res~0 := #t~ret7; [L75] havoc #t~ret7; [L78] #t~short9 := ~someBinaryFLOATComparisonOperation(~res~0, 0.0); VAL [#NULL!base=0, #NULL!offset=0, #t~short9=false, ~res~0=0.0, ~x~0=4.286578691E9, ~y~0=0.0] [L78] COND FALSE !(#t~short9) VAL [#NULL!base=0, #NULL!offset=0, #t~short9=false, ~res~0=0.0, ~x~0=4.286578691E9, ~y~0=0.0] [L78] COND TRUE !#t~short9 [L78] havoc #t~short9; [L78] havoc #t~ret8; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=0.0, ~x~0=4.286578691E9, ~y~0=0.0] [L79] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=0.0, ~x~0=4.286578691E9, ~y~0=0.0] [L72] float x = -0.0f; [L73] float y = 0.0f; VAL [y=0] [L75] CALL, EXPR fmax_float(x, y) VAL [\old(x)=4286578691, \old(y)=0] [L43] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=4286578691] [L20] __uint32_t w; VAL [\old(x)=4286578691, x=4286578691] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (w) = gf_u.word [L28] COND FALSE !(w == 0x00000000 || w == 0x80000000) VAL [\old(x)=4286578691, w=4286578689, x=4286578691] [L30-L31] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) VAL [\old(x)=4286578691, w=4286578689, x=4286578691] [L33-L34] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) VAL [\old(x)=4286578691, w=4286578689, x=4286578691] [L36] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L39] return 0; VAL [\old(x)=4286578691, \result=0, w=4286578689, x=4286578691] [L43] RET, EXPR __fpclassify_float(x) VAL [\old(x)=4286578691, \old(y)=0, __fpclassify_float(x)=0, x=4286578691, y=0] [L43] COND TRUE __fpclassify_float(x) == 0 [L44] return y; VAL [\old(x)=4286578691, \old(y)=0, \result=0, x=4286578691, y=0] [L75] RET, EXPR fmax_float(x, y) VAL [fmax_float(x, y)=0, x=4286578691, y=0] [L75] float res = fmax_float(x, y); [L78] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [res=0, res == 0.0f && __signbit_float(res) == 0=0, x=4286578691, y=0] [L78] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L79] __VERIFIER_error() VAL [res=0, x=4286578691, y=0] ----- [2018-11-23 00:50:30,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 12:50:30 BoogieIcfgContainer [2018-11-23 00:50:30,035 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 00:50:30,035 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 00:50:30,035 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 00:50:30,035 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 00:50:30,036 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:50:29" (3/4) ... [2018-11-23 00:50:30,039 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 00:50:30,039 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 00:50:30,039 INFO L168 Benchmark]: Toolchain (without parser) took 1027.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -101.0 MB). Peak memory consumption was 48.4 MB. Max. memory is 11.5 GB. [2018-11-23 00:50:30,041 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 00:50:30,041 INFO L168 Benchmark]: CACSL2BoogieTranslator took 168.95 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 945.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-23 00:50:30,042 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.11 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 00:50:30,042 INFO L168 Benchmark]: Boogie Preprocessor took 58.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -196.3 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-23 00:50:30,043 INFO L168 Benchmark]: RCFGBuilder took 246.51 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: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2018-11-23 00:50:30,043 INFO L168 Benchmark]: TraceAbstraction took 531.80 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: 56.1 MB). Peak memory consumption was 56.1 MB. Max. memory is 11.5 GB. [2018-11-23 00:50:30,044 INFO L168 Benchmark]: Witness Printer took 3.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-23 00:50:30,047 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 168.95 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 945.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.11 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 58.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -196.3 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 246.51 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: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 531.80 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: 56.1 MB). Peak memory consumption was 56.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 79]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 78, overapproximation of someUnaryFLOAToperation at line 72. Possible FailurePath: [L72] float x = -0.0f; [L73] float y = 0.0f; VAL [y=0] [L75] CALL, EXPR fmax_float(x, y) VAL [\old(x)=4286578691, \old(y)=0] [L43] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=4286578691] [L20] __uint32_t w; VAL [\old(x)=4286578691, x=4286578691] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (w) = gf_u.word [L28] COND FALSE !(w == 0x00000000 || w == 0x80000000) VAL [\old(x)=4286578691, w=4286578689, x=4286578691] [L30-L31] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) VAL [\old(x)=4286578691, w=4286578689, x=4286578691] [L33-L34] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) VAL [\old(x)=4286578691, w=4286578689, x=4286578691] [L36] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L39] return 0; VAL [\old(x)=4286578691, \result=0, w=4286578689, x=4286578691] [L43] RET, EXPR __fpclassify_float(x) VAL [\old(x)=4286578691, \old(y)=0, __fpclassify_float(x)=0, x=4286578691, y=0] [L43] COND TRUE __fpclassify_float(x) == 0 [L44] return y; VAL [\old(x)=4286578691, \old(y)=0, \result=0, x=4286578691, y=0] [L75] RET, EXPR fmax_float(x, y) VAL [fmax_float(x, y)=0, x=4286578691, y=0] [L75] float res = fmax_float(x, y); [L78] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [res=0, res == 0.0f && __signbit_float(res) == 0=0, x=4286578691, y=0] [L78] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L79] __VERIFIER_error() VAL [res=0, x=4286578691, y=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 44 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 144 SDtfs, 0 SDslu, 172 SDs, 0 SdLazy, 17 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred 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, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 1926 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 [2018-11-23 00:50:31,429 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 00:50:31,431 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 00:50:31,439 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 00:50:31,439 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 00:50:31,440 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 00:50:31,440 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 00:50:31,441 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 00:50:31,442 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 00:50:31,443 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 00:50:31,444 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 00:50:31,444 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 00:50:31,445 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 00:50:31,445 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 00:50:31,446 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 00:50:31,447 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 00:50:31,447 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 00:50:31,449 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 00:50:31,450 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 00:50:31,451 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 00:50:31,452 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 00:50:31,453 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 00:50:31,455 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 00:50:31,455 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 00:50:31,455 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 00:50:31,456 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 00:50:31,457 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 00:50:31,457 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 00:50:31,458 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 00:50:31,458 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 00:50:31,459 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 00:50:31,459 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 00:50:31,459 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 00:50:31,459 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 00:50:31,461 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 00:50:31,461 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 00:50:31,461 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-23 00:50:31,472 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 00:50:31,472 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 00:50:31,472 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 00:50:31,473 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 00:50:31,473 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 00:50:31,473 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 00:50:31,473 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 00:50:31,473 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 00:50:31,473 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 00:50:31,473 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 00:50:31,474 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 00:50:31,474 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 00:50:31,474 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 00:50:31,474 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 00:50:31,474 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 00:50:31,474 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 00:50:31,474 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 00:50:31,475 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 00:50:31,475 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 00:50:31,475 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 00:50:31,475 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 00:50:31,475 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 00:50:31,475 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 00:50:31,475 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 00:50:31,475 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 00:50:31,476 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 00:50:31,476 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 00:50:31,477 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 00:50:31,477 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 00:50:31,478 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 00:50:31,478 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 00:50:31,478 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-23 00:50:31,478 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 00:50:31,478 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 00:50:31,478 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 00:50:31,478 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_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/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 -> f441bd4a1f5705911b7315c074b39e665542818e [2018-11-23 00:50:31,505 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 00:50:31,512 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 00:50:31,514 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 00:50:31,515 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 00:50:31,516 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 00:50:31,516 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1252a_true-unreach-call.c [2018-11-23 00:50:31,553 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/bin-2019/utaipan/data/84f7334cb/5b5dad49d7e64157a7a6f10bc9d41c0c/FLAG2ae6277f1 [2018-11-23 00:50:31,942 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 00:50:31,942 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/sv-benchmarks/c/float-newlib/float_req_bl_1252a_true-unreach-call.c [2018-11-23 00:50:31,947 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/bin-2019/utaipan/data/84f7334cb/5b5dad49d7e64157a7a6f10bc9d41c0c/FLAG2ae6277f1 [2018-11-23 00:50:31,955 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/bin-2019/utaipan/data/84f7334cb/5b5dad49d7e64157a7a6f10bc9d41c0c [2018-11-23 00:50:31,957 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 00:50:31,958 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 00:50:31,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 00:50:31,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 00:50:31,962 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 00:50:31,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:50:31" (1/1) ... [2018-11-23 00:50:31,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ec5253c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:31, skipping insertion in model container [2018-11-23 00:50:31,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:50:31" (1/1) ... [2018-11-23 00:50:31,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 00:50:31,988 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 00:50:32,121 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 00:50:32,124 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 00:50:32,141 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 00:50:32,159 INFO L195 MainTranslator]: Completed translation [2018-11-23 00:50:32,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:32 WrapperNode [2018-11-23 00:50:32,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 00:50:32,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 00:50:32,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 00:50:32,160 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 00:50:32,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:32" (1/1) ... [2018-11-23 00:50:32,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:32" (1/1) ... [2018-11-23 00:50:32,176 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 00:50:32,177 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 00:50:32,177 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 00:50:32,177 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 00:50:32,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:32" (1/1) ... [2018-11-23 00:50:32,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:32" (1/1) ... [2018-11-23 00:50:32,185 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:32" (1/1) ... [2018-11-23 00:50:32,185 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:32" (1/1) ... [2018-11-23 00:50:32,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:32" (1/1) ... [2018-11-23 00:50:32,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:32" (1/1) ... [2018-11-23 00:50:32,195 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:32" (1/1) ... [2018-11-23 00:50:32,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 00:50:32,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 00:50:32,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 00:50:32,197 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 00:50:32,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/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 [2018-11-23 00:50:32,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 00:50:32,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 00:50:32,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 00:50:32,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-23 00:50:32,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 00:50:32,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 00:50:32,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-23 00:50:32,266 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 00:50:32,266 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 00:50:32,266 INFO L130 BoogieDeclarations]: Found specification of procedure fmax_float [2018-11-23 00:50:32,267 INFO L138 BoogieDeclarations]: Found implementation of procedure fmax_float [2018-11-23 00:50:32,267 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2018-11-23 00:50:32,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2018-11-23 00:50:32,267 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-23 00:50:32,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-23 00:50:32,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 00:50:32,429 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:50:32,457 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 00:50:32,460 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 00:50:32,460 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-23 00:50:32,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:50:32 BoogieIcfgContainer [2018-11-23 00:50:32,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 00:50:32,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 00:50:32,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 00:50:32,463 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 00:50:32,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:50:31" (1/3) ... [2018-11-23 00:50:32,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2040112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:50:32, skipping insertion in model container [2018-11-23 00:50:32,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:50:32" (2/3) ... [2018-11-23 00:50:32,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2040112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:50:32, skipping insertion in model container [2018-11-23 00:50:32,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:50:32" (3/3) ... [2018-11-23 00:50:32,465 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1252a_true-unreach-call.c [2018-11-23 00:50:32,472 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 00:50:32,478 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 00:50:32,487 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 00:50:32,504 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 00:50:32,505 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 00:50:32,505 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 00:50:32,505 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 00:50:32,505 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 00:50:32,505 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 00:50:32,505 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 00:50:32,505 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 00:50:32,505 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 00:50:32,515 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-11-23 00:50:32,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-23 00:50:32,519 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:50:32,519 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] [2018-11-23 00:50:32,520 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:50:32,523 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:50:32,523 INFO L82 PathProgramCache]: Analyzing trace with hash -849686715, now seen corresponding path program 1 times [2018-11-23 00:50:32,526 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 00:50:32,526 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/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 [2018-11-23 00:50:32,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:50:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:50:32,578 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:50:32,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:50:32,590 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 00:50:32,602 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:50:32,602 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 00:50:32,604 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 00:50:32,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 00:50:32,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 00:50:32,613 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-11-23 00:50:32,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:50:32,632 INFO L93 Difference]: Finished difference Result 75 states and 103 transitions. [2018-11-23 00:50:32,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 00:50:32,633 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-23 00:50:32,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:50:32,639 INFO L225 Difference]: With dead ends: 75 [2018-11-23 00:50:32,639 INFO L226 Difference]: Without dead ends: 38 [2018-11-23 00:50:32,641 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 00:50:32,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-23 00:50:32,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-11-23 00:50:32,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-23 00:50:32,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2018-11-23 00:50:32,668 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 21 [2018-11-23 00:50:32,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:50:32,668 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2018-11-23 00:50:32,668 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 00:50:32,668 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2018-11-23 00:50:32,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-23 00:50:32,670 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:50:32,670 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] [2018-11-23 00:50:32,670 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:50:32,670 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:50:32,670 INFO L82 PathProgramCache]: Analyzing trace with hash -2014516036, now seen corresponding path program 1 times [2018-11-23 00:50:32,671 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 00:50:32,671 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/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 [2018-11-23 00:50:32,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:50:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:50:32,720 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:50:32,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:50:32,749 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 00:50:32,762 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:50:32,763 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 00:50:32,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 00:50:32,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 00:50:32,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 00:50:32,764 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand 4 states. [2018-11-23 00:50:32,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:50:32,787 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2018-11-23 00:50:32,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 00:50:32,788 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-11-23 00:50:32,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:50:32,790 INFO L225 Difference]: With dead ends: 56 [2018-11-23 00:50:32,791 INFO L226 Difference]: Without dead ends: 41 [2018-11-23 00:50:32,792 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 00:50:32,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-23 00:50:32,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-23 00:50:32,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-23 00:50:32,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2018-11-23 00:50:32,799 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 22 [2018-11-23 00:50:32,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:50:32,799 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2018-11-23 00:50:32,799 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 00:50:32,800 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2018-11-23 00:50:32,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-23 00:50:32,801 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:50:32,801 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] [2018-11-23 00:50:32,802 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:50:32,802 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:50:32,802 INFO L82 PathProgramCache]: Analyzing trace with hash -842703294, now seen corresponding path program 1 times [2018-11-23 00:50:32,802 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 00:50:32,802 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-23 00:50:32,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:50:32,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:50:32,845 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:50:32,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 00:50:32,944 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 00:50:32,954 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:50:32,954 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-23 00:50:32,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 00:50:32,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 00:50:32,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-23 00:50:32,955 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand 8 states. [2018-11-23 00:50:33,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:50:33,301 INFO L93 Difference]: Finished difference Result 60 states and 73 transitions. [2018-11-23 00:50:33,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 00:50:33,302 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-11-23 00:50:33,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:50:33,303 INFO L225 Difference]: With dead ends: 60 [2018-11-23 00:50:33,303 INFO L226 Difference]: Without dead ends: 40 [2018-11-23 00:50:33,303 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-11-23 00:50:33,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-23 00:50:33,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-11-23 00:50:33,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-23 00:50:33,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2018-11-23 00:50:33,308 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 23 [2018-11-23 00:50:33,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:50:33,308 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2018-11-23 00:50:33,308 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 00:50:33,309 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2018-11-23 00:50:33,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-23 00:50:33,309 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:50:33,309 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:50:33,310 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:50:33,310 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:50:33,310 INFO L82 PathProgramCache]: Analyzing trace with hash 513797078, now seen corresponding path program 1 times [2018-11-23 00:50:33,310 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 00:50:33,310 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-23 00:50:33,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:50:33,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:50:33,345 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:50:33,356 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-23 00:50:33,356 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 00:50:33,363 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:50:33,363 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 00:50:33,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 00:50:33,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 00:50:33,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 00:50:33,364 INFO L87 Difference]: Start difference. First operand 40 states and 47 transitions. Second operand 4 states. [2018-11-23 00:50:33,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:50:33,375 INFO L93 Difference]: Finished difference Result 56 states and 64 transitions. [2018-11-23 00:50:33,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 00:50:33,375 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-11-23 00:50:33,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:50:33,376 INFO L225 Difference]: With dead ends: 56 [2018-11-23 00:50:33,376 INFO L226 Difference]: Without dead ends: 41 [2018-11-23 00:50:33,377 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 00:50:33,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-23 00:50:33,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-23 00:50:33,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-23 00:50:33,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2018-11-23 00:50:33,382 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 30 [2018-11-23 00:50:33,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:50:33,383 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2018-11-23 00:50:33,383 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 00:50:33,383 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2018-11-23 00:50:33,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-23 00:50:33,384 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:50:33,384 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:50:33,384 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:50:33,384 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:50:33,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1245379058, now seen corresponding path program 1 times [2018-11-23 00:50:33,385 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 00:50:33,385 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-23 00:50:33,394 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:50:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:50:33,427 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:50:33,513 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 00:50:33,513 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 00:50:33,526 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:50:33,526 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-23 00:50:33,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 00:50:33,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 00:50:33,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-23 00:50:33,527 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand 8 states. [2018-11-23 00:50:33,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:50:33,857 INFO L93 Difference]: Finished difference Result 58 states and 66 transitions. [2018-11-23 00:50:33,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 00:50:33,857 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2018-11-23 00:50:33,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:50:33,858 INFO L225 Difference]: With dead ends: 58 [2018-11-23 00:50:33,858 INFO L226 Difference]: Without dead ends: 35 [2018-11-23 00:50:33,859 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-11-23 00:50:33,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-23 00:50:33,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-11-23 00:50:33,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-23 00:50:33,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2018-11-23 00:50:33,862 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 31 [2018-11-23 00:50:33,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:50:33,863 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2018-11-23 00:50:33,863 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 00:50:33,863 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2018-11-23 00:50:33,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-23 00:50:33,864 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:50:33,864 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:50:33,864 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:50:33,864 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:50:33,864 INFO L82 PathProgramCache]: Analyzing trace with hash 45724059, now seen corresponding path program 1 times [2018-11-23 00:50:33,864 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 00:50:33,865 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-23 00:50:33,867 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:50:33,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:50:33,899 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:50:33,946 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-23 00:50:33,946 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 00:50:33,952 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:50:33,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 00:50:33,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 00:50:33,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 00:50:33,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 00:50:33,953 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 5 states. [2018-11-23 00:50:34,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:50:34,002 INFO L93 Difference]: Finished difference Result 51 states and 53 transitions. [2018-11-23 00:50:34,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 00:50:34,003 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2018-11-23 00:50:34,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:50:34,004 INFO L225 Difference]: With dead ends: 51 [2018-11-23 00:50:34,004 INFO L226 Difference]: Without dead ends: 35 [2018-11-23 00:50:34,004 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 00:50:34,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-23 00:50:34,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-11-23 00:50:34,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-23 00:50:34,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2018-11-23 00:50:34,007 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 32 [2018-11-23 00:50:34,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:50:34,007 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2018-11-23 00:50:34,007 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 00:50:34,007 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2018-11-23 00:50:34,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-23 00:50:34,008 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:50:34,008 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:50:34,008 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:50:34,008 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:50:34,008 INFO L82 PathProgramCache]: Analyzing trace with hash -763622567, now seen corresponding path program 1 times [2018-11-23 00:50:34,009 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 00:50:34,009 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/bin-2019/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-11-23 00:50:34,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:50:34,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:50:34,043 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:50:34,093 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-23 00:50:34,094 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 00:50:34,100 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:50:34,100 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-23 00:50:34,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 00:50:34,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 00:50:34,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-23 00:50:34,101 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 8 states. [2018-11-23 00:50:34,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:50:34,237 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2018-11-23 00:50:34,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 00:50:34,237 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2018-11-23 00:50:34,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:50:34,238 INFO L225 Difference]: With dead ends: 38 [2018-11-23 00:50:34,238 INFO L226 Difference]: Without dead ends: 35 [2018-11-23 00:50:34,238 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2018-11-23 00:50:34,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-23 00:50:34,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-11-23 00:50:34,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-23 00:50:34,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2018-11-23 00:50:34,242 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 32 [2018-11-23 00:50:34,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:50:34,242 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2018-11-23 00:50:34,242 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 00:50:34,243 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2018-11-23 00:50:34,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-23 00:50:34,243 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 00:50:34,244 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 00:50:34,245 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 00:50:34,245 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 00:50:34,245 INFO L82 PathProgramCache]: Analyzing trace with hash -135886477, now seen corresponding path program 1 times [2018-11-23 00:50:34,245 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 00:50:34,245 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/bin-2019/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-11-23 00:50:34,248 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 00:50:34,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 00:50:34,305 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 00:50:34,458 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-23 00:50:34,458 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 00:50:34,469 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 00:50:34,470 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-11-23 00:50:34,470 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-23 00:50:34,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-23 00:50:34,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-11-23 00:50:34,471 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 13 states. [2018-11-23 00:50:34,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 00:50:34,797 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2018-11-23 00:50:34,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 00:50:34,797 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 40 [2018-11-23 00:50:34,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 00:50:34,798 INFO L225 Difference]: With dead ends: 35 [2018-11-23 00:50:34,798 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 00:50:34,798 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2018-11-23 00:50:34,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 00:50:34,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 00:50:34,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 00:50:34,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 00:50:34,799 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2018-11-23 00:50:34,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 00:50:34,799 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 00:50:34,799 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-23 00:50:34,799 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 00:50:34,799 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 00:50:34,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 00:50:34,901 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 00:50:34,901 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-23 00:50:34,902 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 00:50:34,902 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 00:50:34,902 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 00:50:34,902 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 00:50:34,902 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 00:50:34,902 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 79) no Hoare annotation was computed. [2018-11-23 00:50:34,902 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 65 84) the Hoare annotation is: true [2018-11-23 00:50:34,902 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 65 84) no Hoare annotation was computed. [2018-11-23 00:50:34,903 INFO L448 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-23 00:50:34,903 INFO L448 ceAbstractionStarter]: For program point L78(line 78) no Hoare annotation was computed. [2018-11-23 00:50:34,903 INFO L444 ceAbstractionStarter]: At program point L78-1(line 78) the Hoare annotation is: (and (= (_ +zero 8 24) main_~res~0) |main_#t~short9| (= main_~x~0 (fp.neg (_ +zero 8 24))) (= (_ +zero 8 24) main_~y~0)) [2018-11-23 00:50:34,903 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 65 84) no Hoare annotation was computed. [2018-11-23 00:50:34,903 INFO L448 ceAbstractionStarter]: For program point L78-2(line 78) no Hoare annotation was computed. [2018-11-23 00:50:34,903 INFO L444 ceAbstractionStarter]: At program point L75(line 75) the Hoare annotation is: (and (= main_~x~0 (fp.neg (_ +zero 8 24))) (= (_ +zero 8 24) main_~y~0)) [2018-11-23 00:50:34,903 INFO L448 ceAbstractionStarter]: For program point L75-1(line 75) no Hoare annotation was computed. [2018-11-23 00:50:34,903 INFO L448 ceAbstractionStarter]: For program point L78-4(lines 78 81) no Hoare annotation was computed. [2018-11-23 00:50:34,904 INFO L448 ceAbstractionStarter]: For program point fmax_floatEXIT(lines 42 51) no Hoare annotation was computed. [2018-11-23 00:50:34,904 INFO L451 ceAbstractionStarter]: At program point fmax_floatENTRY(lines 42 51) the Hoare annotation is: true [2018-11-23 00:50:34,904 INFO L448 ceAbstractionStarter]: For program point L50(line 50) no Hoare annotation was computed. [2018-11-23 00:50:34,904 INFO L448 ceAbstractionStarter]: For program point L50-2(line 50) no Hoare annotation was computed. [2018-11-23 00:50:34,904 INFO L444 ceAbstractionStarter]: At program point L47(line 47) the Hoare annotation is: (let ((.cse0 (= |fmax_float_#in~x| fmax_float_~x))) (or (and (= |fmax_float_#in~y| fmax_float_~y) .cse0) (and (exists ((__fpclassify_float_~w~0 (_ BitVec 32))) (and (not (= (bvadd __fpclassify_float_~w~0 (_ bv2147483648 32)) (_ bv0 32))) (= |fmax_float_#in~x| (fp ((_ extract 31 31) __fpclassify_float_~w~0) ((_ extract 30 23) __fpclassify_float_~w~0) ((_ extract 22 0) __fpclassify_float_~w~0))))) .cse0))) [2018-11-23 00:50:34,904 INFO L448 ceAbstractionStarter]: For program point L47-1(lines 47 49) no Hoare annotation was computed. [2018-11-23 00:50:34,904 INFO L444 ceAbstractionStarter]: At program point L43(line 43) the Hoare annotation is: (and (= |fmax_float_#in~y| fmax_float_~y) (= |fmax_float_#in~x| fmax_float_~x)) [2018-11-23 00:50:34,904 INFO L448 ceAbstractionStarter]: For program point L43-1(lines 43 45) no Hoare annotation was computed. [2018-11-23 00:50:34,904 INFO L448 ceAbstractionStarter]: For program point fmax_floatFINAL(lines 42 51) no Hoare annotation was computed. [2018-11-23 00:50:34,905 INFO L448 ceAbstractionStarter]: For program point L33(lines 33 39) no Hoare annotation was computed. [2018-11-23 00:50:34,905 INFO L448 ceAbstractionStarter]: For program point __fpclassify_floatFINAL(lines 19 40) no Hoare annotation was computed. [2018-11-23 00:50:34,905 INFO L448 ceAbstractionStarter]: For program point L36(lines 36 39) no Hoare annotation was computed. [2018-11-23 00:50:34,905 INFO L448 ceAbstractionStarter]: For program point L30(lines 30 39) no Hoare annotation was computed. [2018-11-23 00:50:34,905 INFO L448 ceAbstractionStarter]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2018-11-23 00:50:34,905 INFO L444 ceAbstractionStarter]: At program point L22-2(lines 22 26) the Hoare annotation is: (= __fpclassify_float_~x |__fpclassify_float_#in~x|) [2018-11-23 00:50:34,905 INFO L448 ceAbstractionStarter]: For program point L22-3(lines 19 40) no Hoare annotation was computed. [2018-11-23 00:50:34,905 INFO L451 ceAbstractionStarter]: At program point __fpclassify_floatENTRY(lines 19 40) the Hoare annotation is: true [2018-11-23 00:50:34,905 INFO L448 ceAbstractionStarter]: For program point __fpclassify_floatEXIT(lines 19 40) no Hoare annotation was computed. [2018-11-23 00:50:34,905 INFO L448 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 53 63) no Hoare annotation was computed. [2018-11-23 00:50:34,906 INFO L448 ceAbstractionStarter]: For program point L56-1(lines 56 60) no Hoare annotation was computed. [2018-11-23 00:50:34,906 INFO L444 ceAbstractionStarter]: At program point L56-2(lines 56 60) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-11-23 00:50:34,906 INFO L448 ceAbstractionStarter]: For program point L56-3(lines 56 60) no Hoare annotation was computed. [2018-11-23 00:50:34,906 INFO L451 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 53 63) the Hoare annotation is: true [2018-11-23 00:50:34,906 INFO L448 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 53 63) no Hoare annotation was computed. [2018-11-23 00:50:34,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 12:50:34 BoogieIcfgContainer [2018-11-23 00:50:34,914 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 00:50:34,914 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 00:50:34,915 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 00:50:34,915 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 00:50:34,915 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:50:32" (3/4) ... [2018-11-23 00:50:34,918 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 00:50:34,921 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 00:50:34,922 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 00:50:34,922 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fmax_float [2018-11-23 00:50:34,922 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __fpclassify_float [2018-11-23 00:50:34,922 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-11-23 00:50:34,926 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-11-23 00:50:34,926 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-23 00:50:34,926 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 00:50:34,942 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-23 00:50:34,943 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-23 00:50:34,960 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_027ffe72-3dc5-4bfb-8869-6b7a23f5476d/bin-2019/utaipan/witness.graphml [2018-11-23 00:50:34,960 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 00:50:34,961 INFO L168 Benchmark]: Toolchain (without parser) took 3003.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 951.9 MB in the beginning and 832.0 MB in the end (delta: 119.9 MB). Peak memory consumption was 247.8 MB. Max. memory is 11.5 GB. [2018-11-23 00:50:34,962 INFO L168 Benchmark]: CDTParser took 0.10 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. [2018-11-23 00:50:34,962 INFO L168 Benchmark]: CACSL2BoogieTranslator took 201.33 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-23 00:50:34,962 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.54 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 00:50:34,962 INFO L168 Benchmark]: Boogie Preprocessor took 20.43 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 00:50:34,963 INFO L168 Benchmark]: RCFGBuilder took 263.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -162.2 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-11-23 00:50:34,963 INFO L168 Benchmark]: TraceAbstraction took 2452.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 832.0 MB in the end (delta: 266.0 MB). Peak memory consumption was 266.0 MB. Max. memory is 11.5 GB. [2018-11-23 00:50:34,963 INFO L168 Benchmark]: Witness Printer took 45.74 ms. Allocated memory is still 1.2 GB. Free memory is still 832.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 00:50:34,965 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 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 201.33 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 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 16.54 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.43 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 263.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -162.2 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2452.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 832.0 MB in the end (delta: 266.0 MB). Peak memory consumption was 266.0 MB. Max. memory is 11.5 GB. * Witness Printer took 45.74 ms. Allocated memory is still 1.2 GB. Free memory is still 832.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 79]: 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: 56]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: x == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 42 locations, 1 error locations. SAFE Result, 2.4s OverallTime, 8 OverallIterations, 2 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 296 SDtfs, 121 SDslu, 975 SDs, 0 SdLazy, 365 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 242 GetRequests, 187 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 31 PreInvPairs, 38 NumberOfFragments, 69 HoareAnnotationTreeSize, 31 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 231 NumberOfCodeBlocks, 231 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 223 ConstructedInterpolants, 14 QuantifiedInterpolants, 20050 SizeOfPredicates, 21 NumberOfNonLiveVariables, 624 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 30/30 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...