./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1232a_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_3a4712a8-95a5-4406-91ea-567d9af7a453/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1232a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/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 cd0c8f7b91fa815011541d5ffb41102d34132ba8 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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_3a4712a8-95a5-4406-91ea-567d9af7a453/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1232a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/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 cd0c8f7b91fa815011541d5ffb41102d34132ba8 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-22 21:28:59,256 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 21:28:59,257 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 21:28:59,264 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 21:28:59,264 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 21:28:59,265 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 21:28:59,265 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 21:28:59,266 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 21:28:59,267 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 21:28:59,268 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 21:28:59,269 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 21:28:59,269 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 21:28:59,269 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 21:28:59,270 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 21:28:59,271 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 21:28:59,271 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 21:28:59,272 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 21:28:59,273 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 21:28:59,274 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 21:28:59,275 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 21:28:59,276 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 21:28:59,277 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 21:28:59,279 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 21:28:59,279 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 21:28:59,279 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 21:28:59,280 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 21:28:59,280 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 21:28:59,281 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 21:28:59,281 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 21:28:59,282 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 21:28:59,282 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 21:28:59,283 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 21:28:59,283 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 21:28:59,283 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 21:28:59,284 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 21:28:59,284 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 21:28:59,284 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-22 21:28:59,294 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 21:28:59,294 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 21:28:59,295 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-22 21:28:59,295 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-22 21:28:59,295 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-22 21:28:59,295 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-22 21:28:59,295 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-22 21:28:59,295 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-22 21:28:59,295 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-22 21:28:59,295 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-22 21:28:59,296 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-22 21:28:59,296 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-22 21:28:59,296 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-22 21:28:59,296 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 21:28:59,296 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-22 21:28:59,296 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 21:28:59,297 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-22 21:28:59,297 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 21:28:59,297 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-22 21:28:59,297 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-22 21:28:59,297 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-22 21:28:59,297 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-22 21:28:59,297 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 21:28:59,298 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 21:28:59,298 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-22 21:28:59,298 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 21:28:59,298 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 21:28:59,298 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-22 21:28:59,298 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-22 21:28:59,298 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 21:28:59,298 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 21:28:59,298 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-22 21:28:59,298 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-22 21:28:59,298 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-22 21:28:59,299 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-22 21:28:59,299 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-22 21:28:59,299 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-22 21:28:59,299 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_3a4712a8-95a5-4406-91ea-567d9af7a453/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 -> cd0c8f7b91fa815011541d5ffb41102d34132ba8 [2018-11-22 21:28:59,321 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 21:28:59,329 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 21:28:59,331 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 21:28:59,332 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 21:28:59,332 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 21:28:59,333 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1232a_true-unreach-call.c [2018-11-22 21:28:59,367 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/bin-2019/utaipan/data/57b64ab1d/ed399fab344c45359a0f09f0ecbc13a0/FLAGb959d6fc2 [2018-11-22 21:28:59,768 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 21:28:59,768 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/sv-benchmarks/c/float-newlib/float_req_bl_1232a_true-unreach-call.c [2018-11-22 21:28:59,772 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/bin-2019/utaipan/data/57b64ab1d/ed399fab344c45359a0f09f0ecbc13a0/FLAGb959d6fc2 [2018-11-22 21:28:59,780 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/bin-2019/utaipan/data/57b64ab1d/ed399fab344c45359a0f09f0ecbc13a0 [2018-11-22 21:28:59,782 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 21:28:59,783 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 21:28:59,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 21:28:59,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 21:28:59,786 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 21:28:59,786 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:28:59" (1/1) ... [2018-11-22 21:28:59,788 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 22.11 09:28:59, skipping insertion in model container [2018-11-22 21:28:59,788 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:28:59" (1/1) ... [2018-11-22 21:28:59,794 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 21:28:59,807 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 21:28:59,922 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 21:28:59,924 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 21:28:59,938 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 21:28:59,951 INFO L195 MainTranslator]: Completed translation [2018-11-22 21:28:59,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:28:59 WrapperNode [2018-11-22 21:28:59,951 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 21:28:59,952 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 21:28:59,952 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 21:28:59,952 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 21:28:59,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:28:59" (1/1) ... [2018-11-22 21:28:59,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:28:59" (1/1) ... [2018-11-22 21:28:59,966 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 21:28:59,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 21:28:59,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 21:28:59,967 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 21:29:00,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:28:59" (1/1) ... [2018-11-22 21:29:00,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:28:59" (1/1) ... [2018-11-22 21:29:00,010 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:28:59" (1/1) ... [2018-11-22 21:29:00,011 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:28:59" (1/1) ... [2018-11-22 21:29:00,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:28:59" (1/1) ... [2018-11-22 21:29:00,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:28:59" (1/1) ... [2018-11-22 21:29:00,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:28:59" (1/1) ... [2018-11-22 21:29:00,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 21:29:00,025 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 21:29:00,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 21:29:00,025 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 21:29:00,026 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:28:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 21:29:00,058 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-22 21:29:00,058 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-22 21:29:00,058 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2018-11-22 21:29:00,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2018-11-22 21:29:00,058 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_float [2018-11-22 21:29:00,058 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_float [2018-11-22 21:29:00,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-22 21:29:00,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-22 21:29:00,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-22 21:29:00,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-22 21:29:00,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 21:29:00,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 21:29:00,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-22 21:29:00,059 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-22 21:29:00,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-22 21:29:00,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-22 21:29:00,224 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 21:29:00,224 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-22 21:29:00,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:29:00 BoogieIcfgContainer [2018-11-22 21:29:00,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 21:29:00,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-22 21:29:00,225 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-22 21:29:00,228 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-22 21:29:00,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:28:59" (1/3) ... [2018-11-22 21:29:00,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1903c347 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:29:00, skipping insertion in model container [2018-11-22 21:29:00,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:28:59" (2/3) ... [2018-11-22 21:29:00,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1903c347 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:29:00, skipping insertion in model container [2018-11-22 21:29:00,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:29:00" (3/3) ... [2018-11-22 21:29:00,231 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1232a_true-unreach-call.c [2018-11-22 21:29:00,237 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-22 21:29:00,241 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-22 21:29:00,251 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-22 21:29:00,274 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-22 21:29:00,275 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-22 21:29:00,275 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-22 21:29:00,275 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 21:29:00,275 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 21:29:00,275 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-22 21:29:00,275 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 21:29:00,275 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-22 21:29:00,285 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2018-11-22 21:29:00,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-22 21:29:00,290 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:29:00,290 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:29:00,292 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:29:00,295 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:29:00,295 INFO L82 PathProgramCache]: Analyzing trace with hash 2127055292, now seen corresponding path program 1 times [2018-11-22 21:29:00,297 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:29:00,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:29:00,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:29:00,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:29:00,332 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:29:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:29:00,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:29:00,395 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:29:00,395 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-22 21:29:00,396 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:29:00,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-22 21:29:00,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-22 21:29:00,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-22 21:29:00,409 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2018-11-22 21:29:00,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:29:00,425 INFO L93 Difference]: Finished difference Result 79 states and 107 transitions. [2018-11-22 21:29:00,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-22 21:29:00,426 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-22 21:29:00,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:29:00,432 INFO L225 Difference]: With dead ends: 79 [2018-11-22 21:29:00,432 INFO L226 Difference]: Without dead ends: 40 [2018-11-22 21:29:00,435 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-22 21:29:00,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-22 21:29:00,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-11-22 21:29:00,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-22 21:29:00,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2018-11-22 21:29:00,462 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 22 [2018-11-22 21:29:00,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:29:00,463 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2018-11-22 21:29:00,463 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-22 21:29:00,463 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2018-11-22 21:29:00,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-22 21:29:00,464 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:29:00,464 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:29:00,465 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:29:00,465 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:29:00,465 INFO L82 PathProgramCache]: Analyzing trace with hash 1720731955, now seen corresponding path program 1 times [2018-11-22 21:29:00,465 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:29:00,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:29:00,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:29:00,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:29:00,466 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:29:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:29:00,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:29:00,529 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:29:00,529 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-22 21:29:00,529 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:29:00,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-22 21:29:00,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-22 21:29:00,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-22 21:29:00,530 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 4 states. [2018-11-22 21:29:00,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:29:00,555 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2018-11-22 21:29:00,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-22 21:29:00,556 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-11-22 21:29:00,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:29:00,558 INFO L225 Difference]: With dead ends: 59 [2018-11-22 21:29:00,558 INFO L226 Difference]: Without dead ends: 44 [2018-11-22 21:29:00,559 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 [2018-11-22 21:29:00,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-22 21:29:00,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-11-22 21:29:00,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-22 21:29:00,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2018-11-22 21:29:00,566 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 23 [2018-11-22 21:29:00,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:29:00,566 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2018-11-22 21:29:00,566 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-22 21:29:00,566 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2018-11-22 21:29:00,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-22 21:29:00,567 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:29:00,567 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] [2018-11-22 21:29:00,568 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:29:00,568 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:29:00,568 INFO L82 PathProgramCache]: Analyzing trace with hash 185784867, now seen corresponding path program 1 times [2018-11-22 21:29:00,568 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:29:00,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:29:00,569 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:29:00,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:29:00,569 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:29:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:29:00,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:29:00,611 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:29:00,611 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-22 21:29:00,611 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-22 21:29:00,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-22 21:29:00,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-22 21:29:00,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-22 21:29:00,612 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand 4 states. [2018-11-22 21:29:00,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:29:00,641 INFO L93 Difference]: Finished difference Result 63 states and 74 transitions. [2018-11-22 21:29:00,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-22 21:29:00,642 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2018-11-22 21:29:00,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:29:00,642 INFO L225 Difference]: With dead ends: 63 [2018-11-22 21:29:00,642 INFO L226 Difference]: Without dead ends: 48 [2018-11-22 21:29:00,643 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 [2018-11-22 21:29:00,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-11-22 21:29:00,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2018-11-22 21:29:00,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-22 21:29:00,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2018-11-22 21:29:00,646 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 26 [2018-11-22 21:29:00,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:29:00,647 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2018-11-22 21:29:00,647 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-22 21:29:00,647 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2018-11-22 21:29:00,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-22 21:29:00,647 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:29:00,647 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] [2018-11-22 21:29:00,647 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:29:00,647 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:29:00,648 INFO L82 PathProgramCache]: Analyzing trace with hash -1611166492, now seen corresponding path program 1 times [2018-11-22 21:29:00,648 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-22 21:29:00,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:29:00,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:29:00,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:29:00,648 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-22 21:29:00,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:29:00,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 21:29:00,692 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 #94#return; VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret10 := main(); VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] ~x~0 := 0.0;~y~0 := ~someUnaryFLOAToperation(0.0); VAL [main_~x~0=0.0, |#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret7 := fmin_float(~x~0, ~y~0); VAL [|#NULL.base|=0, |#NULL.offset|=0, |fmin_float_#in~x|=0.0, |fmin_float_#in~y|=4286578691.0] [?] ~x := #in~x;~y := #in~y; VAL [fmin_float_~x=0.0, fmin_float_~y=4286578691.0, |#NULL.base|=0, |#NULL.offset|=0, |fmin_float_#in~x|=0.0, |fmin_float_#in~y|=4286578691.0] [?] CALL call #t~ret2 := __fpclassify_float(~x); VAL [|#NULL.base|=0, |#NULL.offset|=0, |__fpclassify_float_#in~x|=0.0] [?] ~x := #in~x;havoc ~w~0; VAL [__fpclassify_float_~x=0.0, |#NULL.base|=0, |#NULL.offset|=0, |__fpclassify_float_#in~x|=0.0] [?] 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=0.0, |#NULL.base|=0, |#NULL.offset|=0, |__fpclassify_float_#in~x|=0.0] [?] goto; VAL [__fpclassify_float_~w~0=4286578689, __fpclassify_float_~x=0.0, |#NULL.base|=0, |#NULL.offset|=0, |__fpclassify_float_#in~x|=0.0] [?] assume !(0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296); VAL [__fpclassify_float_~w~0=4286578689, __fpclassify_float_~x=0.0, |#NULL.base|=0, |#NULL.offset|=0, |__fpclassify_float_#in~x|=0.0] [?] 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=0.0, |#NULL.base|=0, |#NULL.offset|=0, |__fpclassify_float_#in~x|=0.0] [?] 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=0.0, |#NULL.base|=0, |#NULL.offset|=0, |__fpclassify_float_#in~x|=0.0] [?] assume !(2139095040 == ~w~0 % 4294967296 || 4286578688 == ~w~0 % 4294967296);#res := 0; VAL [__fpclassify_float_~w~0=4286578689, __fpclassify_float_~x=0.0, |#NULL.base|=0, |#NULL.offset|=0, |__fpclassify_float_#in~x|=0.0, |__fpclassify_float_#res|=0] [?] assume true; VAL [__fpclassify_float_~w~0=4286578689, __fpclassify_float_~x=0.0, |#NULL.base|=0, |#NULL.offset|=0, |__fpclassify_float_#in~x|=0.0, |__fpclassify_float_#res|=0] [?] RET #90#return; VAL [fmin_float_~x=0.0, fmin_float_~y=4286578691.0, |#NULL.base|=0, |#NULL.offset|=0, |fmin_float_#in~x|=0.0, |fmin_float_#in~y|=4286578691.0, |fmin_float_#t~ret2|=0] [?] assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; VAL [fmin_float_~x=0.0, fmin_float_~y=4286578691.0, |#NULL.base|=0, |#NULL.offset|=0, |fmin_float_#in~x|=0.0, |fmin_float_#in~y|=4286578691.0, |fmin_float_#t~ret2|=0] [?] assume 0 == #t~ret2;havoc #t~ret2;#res := ~y; VAL [fmin_float_~x=0.0, fmin_float_~y=4286578691.0, |#NULL.base|=0, |#NULL.offset|=0, |fmin_float_#in~x|=0.0, |fmin_float_#in~y|=4286578691.0, |fmin_float_#res|=4286578691.0] [?] assume true; VAL [fmin_float_~x=0.0, fmin_float_~y=4286578691.0, |#NULL.base|=0, |#NULL.offset|=0, |fmin_float_#in~x|=0.0, |fmin_float_#in~y|=4286578691.0, |fmin_float_#res|=4286578691.0] [?] RET #98#return; VAL [main_~x~0=0.0, main_~y~0=4286578691.0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~ret7|=4286578691.0] [?] ~res~0 := #t~ret7;havoc #t~ret7;#t~short9 := ~someBinaryFLOATComparisonOperation(~res~0, ~someUnaryFLOAToperation(0.0)); VAL [main_~res~0=4286578691.0, main_~x~0=0.0, main_~y~0=4286578691.0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~short9|=false] [?] assume !#t~short9; VAL [main_~res~0=4286578691.0, main_~x~0=0.0, main_~y~0=4286578691.0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~short9|=false] [?] assume !#t~short9;havoc #t~ret8;havoc #t~short9; VAL [main_~res~0=4286578691.0, main_~x~0=0.0, main_~y~0=4286578691.0, |#NULL.base|=0, |#NULL.offset|=0] [?] assume !false; VAL [main_~res~0=4286578691.0, main_~x~0=0.0, main_~y~0=4286578691.0, |#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] [L64] ~x~0 := 0.0; [L65] ~y~0 := ~someUnaryFLOAToperation(0.0); VAL [#NULL.base=0, #NULL.offset=0, ~x~0=0.0] [L66] CALL call #t~ret7 := fmin_float(~x~0, ~y~0); VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL.base=0, #NULL.offset=0] [L35-L42] ~x := #in~x; [L35-L42] ~y := #in~y; VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL.base=0, #NULL.offset=0, ~x=0.0, ~y=4.286578691E9] [L36] CALL call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=0.0, #NULL.base=0, #NULL.offset=0] [L12-L33] ~x := #in~x; [L13] havoc ~w~0; VAL [#in~x=0.0, #NULL.base=0, #NULL.offset=0, ~x=0.0] [L16] call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.alloc(4); [L17] call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L18] call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4); [L18] ~w~0 := #t~mem0; [L18] call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L18] havoc #t~union1; [L18] havoc #t~mem0; [L16] call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); [L16] havoc ~#gf_u~0.base, ~#gf_u~0.offset; VAL [#in~x=0.0, #NULL.base=0, #NULL.offset=0, ~w~0=4286578689, ~x=0.0] [L21-L32] assume !(0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296); VAL [#in~x=0.0, #NULL.base=0, #NULL.offset=0, ~w~0=4286578689, ~x=0.0] [L23-L32] assume !((~w~0 % 4294967296 >= 8388608 && ~w~0 % 4294967296 <= 2139095039) || (~w~0 % 4294967296 >= 2155872256 && ~w~0 % 4294967296 <= 4286578687)); VAL [#in~x=0.0, #NULL.base=0, #NULL.offset=0, ~w~0=4286578689, ~x=0.0] [L26-L32] assume !((~w~0 % 4294967296 >= 1 && ~w~0 % 4294967296 <= 8388607) || (~w~0 % 4294967296 >= 2147483649 && ~w~0 % 4294967296 <= 2155872255)); VAL [#in~x=0.0, #NULL.base=0, #NULL.offset=0, ~w~0=4286578689, ~x=0.0] [L29-L32] assume !(2139095040 == ~w~0 % 4294967296 || 4286578688 == ~w~0 % 4294967296); [L32] #res := 0; VAL [#in~x=0.0, #NULL.base=0, #NULL.offset=0, #res=0, ~w~0=4286578689, ~x=0.0] [L12-L33] ensures true; VAL [#in~x=0.0, #NULL.base=0, #NULL.offset=0, #res=0, ~w~0=4286578689, ~x=0.0] [L36] RET call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL.base=0, #NULL.offset=0, #t~ret2=0, ~x=0.0, ~y=4.286578691E9] [L36] assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL.base=0, #NULL.offset=0, #t~ret2=0, ~x=0.0, ~y=4.286578691E9] [L36-L37] assume 0 == #t~ret2; [L36] havoc #t~ret2; [L37] #res := ~y; VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL.base=0, #NULL.offset=0, #res=4.286578691E9, ~x=0.0, ~y=4.286578691E9] [L35-L42] ensures true; VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL.base=0, #NULL.offset=0, #res=4.286578691E9, ~x=0.0, ~y=4.286578691E9] [L66] RET call #t~ret7 := fmin_float(~x~0, ~y~0); VAL [#NULL.base=0, #NULL.offset=0, #t~ret7=4.286578691E9, ~x~0=0.0, ~y~0=4.286578691E9] [L66] ~res~0 := #t~ret7; [L66] havoc #t~ret7; [L69] #t~short9 := ~someBinaryFLOATComparisonOperation(~res~0, ~someUnaryFLOAToperation(0.0)); VAL [#NULL.base=0, #NULL.offset=0, #t~short9=false, ~res~0=4.286578691E9, ~x~0=0.0, ~y~0=4.286578691E9] [L69] assume !#t~short9; VAL [#NULL.base=0, #NULL.offset=0, #t~short9=false, ~res~0=4.286578691E9, ~x~0=0.0, ~y~0=4.286578691E9] [L69-L72] assume !#t~short9; [L69] havoc #t~ret8; [L69] havoc #t~short9; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=4.286578691E9, ~x~0=0.0, ~y~0=4.286578691E9] [L70] assert false; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=4.286578691E9, ~x~0=0.0, ~y~0=4.286578691E9] ----- ----- 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] [L64] ~x~0 := 0.0; [L65] ~y~0 := ~someUnaryFLOAToperation(0.0); VAL [#NULL.base=0, #NULL.offset=0, ~x~0=0.0] [L66] CALL call #t~ret7 := fmin_float(~x~0, ~y~0); VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL.base=0, #NULL.offset=0] [L35-L42] ~x := #in~x; [L35-L42] ~y := #in~y; VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL.base=0, #NULL.offset=0, ~x=0.0, ~y=4.286578691E9] [L36] CALL call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=0.0, #NULL.base=0, #NULL.offset=0] [L12-L33] ~x := #in~x; [L13] havoc ~w~0; VAL [#in~x=0.0, #NULL.base=0, #NULL.offset=0, ~x=0.0] [L16] call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.alloc(4); [L17] call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L18] call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4); [L18] ~w~0 := #t~mem0; [L18] call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L18] havoc #t~union1; [L18] havoc #t~mem0; [L16] call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); [L16] havoc ~#gf_u~0.base, ~#gf_u~0.offset; VAL [#in~x=0.0, #NULL.base=0, #NULL.offset=0, ~w~0=4286578689, ~x=0.0] [L21-L32] assume !(0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296); VAL [#in~x=0.0, #NULL.base=0, #NULL.offset=0, ~w~0=4286578689, ~x=0.0] [L23-L32] assume !((~w~0 % 4294967296 >= 8388608 && ~w~0 % 4294967296 <= 2139095039) || (~w~0 % 4294967296 >= 2155872256 && ~w~0 % 4294967296 <= 4286578687)); VAL [#in~x=0.0, #NULL.base=0, #NULL.offset=0, ~w~0=4286578689, ~x=0.0] [L26-L32] assume !((~w~0 % 4294967296 >= 1 && ~w~0 % 4294967296 <= 8388607) || (~w~0 % 4294967296 >= 2147483649 && ~w~0 % 4294967296 <= 2155872255)); VAL [#in~x=0.0, #NULL.base=0, #NULL.offset=0, ~w~0=4286578689, ~x=0.0] [L29-L32] assume !(2139095040 == ~w~0 % 4294967296 || 4286578688 == ~w~0 % 4294967296); [L32] #res := 0; VAL [#in~x=0.0, #NULL.base=0, #NULL.offset=0, #res=0, ~w~0=4286578689, ~x=0.0] [L12-L33] ensures true; VAL [#in~x=0.0, #NULL.base=0, #NULL.offset=0, #res=0, ~w~0=4286578689, ~x=0.0] [L36] RET call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL.base=0, #NULL.offset=0, #t~ret2=0, ~x=0.0, ~y=4.286578691E9] [L36] assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL.base=0, #NULL.offset=0, #t~ret2=0, ~x=0.0, ~y=4.286578691E9] [L36-L37] assume 0 == #t~ret2; [L36] havoc #t~ret2; [L37] #res := ~y; VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL.base=0, #NULL.offset=0, #res=4.286578691E9, ~x=0.0, ~y=4.286578691E9] [L35-L42] ensures true; VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL.base=0, #NULL.offset=0, #res=4.286578691E9, ~x=0.0, ~y=4.286578691E9] [L66] RET call #t~ret7 := fmin_float(~x~0, ~y~0); VAL [#NULL.base=0, #NULL.offset=0, #t~ret7=4.286578691E9, ~x~0=0.0, ~y~0=4.286578691E9] [L66] ~res~0 := #t~ret7; [L66] havoc #t~ret7; [L69] #t~short9 := ~someBinaryFLOATComparisonOperation(~res~0, ~someUnaryFLOAToperation(0.0)); VAL [#NULL.base=0, #NULL.offset=0, #t~short9=false, ~res~0=4.286578691E9, ~x~0=0.0, ~y~0=4.286578691E9] [L69] assume !#t~short9; VAL [#NULL.base=0, #NULL.offset=0, #t~short9=false, ~res~0=4.286578691E9, ~x~0=0.0, ~y~0=4.286578691E9] [L69-L72] assume !#t~short9; [L69] havoc #t~ret8; [L69] havoc #t~short9; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=4.286578691E9, ~x~0=0.0, ~y~0=4.286578691E9] [L70] assert false; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=4.286578691E9, ~x~0=0.0, ~y~0=4.286578691E9] [?] 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] [L64] ~x~0 := 0.0; [L65] ~y~0 := ~someUnaryFLOAToperation(0.0); VAL [#NULL!base=0, #NULL!offset=0, ~x~0=0.0] [L66] CALL call #t~ret7 := fmin_float(~x~0, ~y~0); VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL!base=0, #NULL!offset=0] [L35-L42] ~x := #in~x; [L35-L42] ~y := #in~y; VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL!base=0, #NULL!offset=0, ~x=0.0, ~y=4.286578691E9] [L36] CALL call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0] [L12-L33] ~x := #in~x; [L13] havoc ~w~0; VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~x=0.0] [L16] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L17] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L18] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L18] ~w~0 := #t~mem0; [L18] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L18] havoc #t~union1; [L18] havoc #t~mem0; [L16] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L16] havoc ~#gf_u~0; VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=0.0] [L21] COND FALSE !(0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296) VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=0.0] [L23-L24] COND FALSE !((~w~0 % 4294967296 >= 8388608 && ~w~0 % 4294967296 <= 2139095039) || (~w~0 % 4294967296 >= 2155872256 && ~w~0 % 4294967296 <= 4286578687)) VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=0.0] [L26-L27] COND FALSE !((~w~0 % 4294967296 >= 1 && ~w~0 % 4294967296 <= 8388607) || (~w~0 % 4294967296 >= 2147483649 && ~w~0 % 4294967296 <= 2155872255)) VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=0.0] [L29] COND FALSE !(2139095040 == ~w~0 % 4294967296 || 4286578688 == ~w~0 % 4294967296) [L32] #res := 0; VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, #res=0, ~w~0=4286578689, ~x=0.0] [L36] RET call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL!base=0, #NULL!offset=0, #t~ret2=0, ~x=0.0, ~y=4.286578691E9] [L36] assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL!base=0, #NULL!offset=0, #t~ret2=0, ~x=0.0, ~y=4.286578691E9] [L36] COND TRUE 0 == #t~ret2 [L36] havoc #t~ret2; [L37] #res := ~y; VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL!base=0, #NULL!offset=0, #res=4.286578691E9, ~x=0.0, ~y=4.286578691E9] [L66] RET call #t~ret7 := fmin_float(~x~0, ~y~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret7=4.286578691E9, ~x~0=0.0, ~y~0=4.286578691E9] [L66] ~res~0 := #t~ret7; [L66] havoc #t~ret7; [L69] #t~short9 := ~someBinaryFLOATComparisonOperation(~res~0, ~someUnaryFLOAToperation(0.0)); VAL [#NULL!base=0, #NULL!offset=0, #t~short9=false, ~res~0=4.286578691E9, ~x~0=0.0, ~y~0=4.286578691E9] [L69] COND FALSE !(#t~short9) VAL [#NULL!base=0, #NULL!offset=0, #t~short9=false, ~res~0=4.286578691E9, ~x~0=0.0, ~y~0=4.286578691E9] [L69] COND TRUE !#t~short9 [L69] havoc #t~ret8; [L69] havoc #t~short9; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=4.286578691E9, ~x~0=0.0, ~y~0=4.286578691E9] [L70] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=4.286578691E9, ~x~0=0.0, ~y~0=4.286578691E9] ----- ----- 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] [L64] ~x~0 := 0.0; [L65] ~y~0 := ~someUnaryFLOAToperation(0.0); VAL [#NULL!base=0, #NULL!offset=0, ~x~0=0.0] [L66] CALL call #t~ret7 := fmin_float(~x~0, ~y~0); VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL!base=0, #NULL!offset=0] [L35-L42] ~x := #in~x; [L35-L42] ~y := #in~y; VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL!base=0, #NULL!offset=0, ~x=0.0, ~y=4.286578691E9] [L36] CALL call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0] [L12-L33] ~x := #in~x; [L13] havoc ~w~0; VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~x=0.0] [L16] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L17] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L18] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L18] ~w~0 := #t~mem0; [L18] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L18] havoc #t~union1; [L18] havoc #t~mem0; [L16] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L16] havoc ~#gf_u~0; VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=0.0] [L21] COND FALSE !(0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296) VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=0.0] [L23-L24] COND FALSE !((~w~0 % 4294967296 >= 8388608 && ~w~0 % 4294967296 <= 2139095039) || (~w~0 % 4294967296 >= 2155872256 && ~w~0 % 4294967296 <= 4286578687)) VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=0.0] [L26-L27] COND FALSE !((~w~0 % 4294967296 >= 1 && ~w~0 % 4294967296 <= 8388607) || (~w~0 % 4294967296 >= 2147483649 && ~w~0 % 4294967296 <= 2155872255)) VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=0.0] [L29] COND FALSE !(2139095040 == ~w~0 % 4294967296 || 4286578688 == ~w~0 % 4294967296) [L32] #res := 0; VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, #res=0, ~w~0=4286578689, ~x=0.0] [L36] RET call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL!base=0, #NULL!offset=0, #t~ret2=0, ~x=0.0, ~y=4.286578691E9] [L36] assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL!base=0, #NULL!offset=0, #t~ret2=0, ~x=0.0, ~y=4.286578691E9] [L36] COND TRUE 0 == #t~ret2 [L36] havoc #t~ret2; [L37] #res := ~y; VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL!base=0, #NULL!offset=0, #res=4.286578691E9, ~x=0.0, ~y=4.286578691E9] [L66] RET call #t~ret7 := fmin_float(~x~0, ~y~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret7=4.286578691E9, ~x~0=0.0, ~y~0=4.286578691E9] [L66] ~res~0 := #t~ret7; [L66] havoc #t~ret7; [L69] #t~short9 := ~someBinaryFLOATComparisonOperation(~res~0, ~someUnaryFLOAToperation(0.0)); VAL [#NULL!base=0, #NULL!offset=0, #t~short9=false, ~res~0=4.286578691E9, ~x~0=0.0, ~y~0=4.286578691E9] [L69] COND FALSE !(#t~short9) VAL [#NULL!base=0, #NULL!offset=0, #t~short9=false, ~res~0=4.286578691E9, ~x~0=0.0, ~y~0=4.286578691E9] [L69] COND TRUE !#t~short9 [L69] havoc #t~ret8; [L69] havoc #t~short9; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=4.286578691E9, ~x~0=0.0, ~y~0=4.286578691E9] [L70] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=4.286578691E9, ~x~0=0.0, ~y~0=4.286578691E9] [?] 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] [L64] ~x~0 := 0.0; [L65] ~y~0 := ~someUnaryFLOAToperation(0.0); VAL [#NULL!base=0, #NULL!offset=0, ~x~0=0.0] [L66] CALL call #t~ret7 := fmin_float(~x~0, ~y~0); VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL!base=0, #NULL!offset=0] [L35-L42] ~x := #in~x; [L35-L42] ~y := #in~y; VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL!base=0, #NULL!offset=0, ~x=0.0, ~y=4.286578691E9] [L36] CALL call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0] [L12-L33] ~x := #in~x; [L13] havoc ~w~0; VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~x=0.0] [L16] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L17] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L18] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L18] ~w~0 := #t~mem0; [L18] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L18] havoc #t~union1; [L18] havoc #t~mem0; [L16] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L16] havoc ~#gf_u~0; VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=0.0] [L21] COND FALSE !(0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296) VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=0.0] [L23-L24] COND FALSE !((~w~0 % 4294967296 >= 8388608 && ~w~0 % 4294967296 <= 2139095039) || (~w~0 % 4294967296 >= 2155872256 && ~w~0 % 4294967296 <= 4286578687)) VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=0.0] [L26-L27] COND FALSE !((~w~0 % 4294967296 >= 1 && ~w~0 % 4294967296 <= 8388607) || (~w~0 % 4294967296 >= 2147483649 && ~w~0 % 4294967296 <= 2155872255)) VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=0.0] [L29] COND FALSE !(2139095040 == ~w~0 % 4294967296 || 4286578688 == ~w~0 % 4294967296) [L32] #res := 0; VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, #res=0, ~w~0=4286578689, ~x=0.0] [L36] RET call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL!base=0, #NULL!offset=0, #t~ret2=0, ~x=0.0, ~y=4.286578691E9] [L36] assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL!base=0, #NULL!offset=0, #t~ret2=0, ~x=0.0, ~y=4.286578691E9] [L36] COND TRUE 0 == #t~ret2 [L36] havoc #t~ret2; [L37] #res := ~y; VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL!base=0, #NULL!offset=0, #res=4.286578691E9, ~x=0.0, ~y=4.286578691E9] [L66] RET call #t~ret7 := fmin_float(~x~0, ~y~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret7=4.286578691E9, ~x~0=0.0, ~y~0=4.286578691E9] [L66] ~res~0 := #t~ret7; [L66] havoc #t~ret7; [L69] #t~short9 := ~someBinaryFLOATComparisonOperation(~res~0, ~someUnaryFLOAToperation(0.0)); VAL [#NULL!base=0, #NULL!offset=0, #t~short9=false, ~res~0=4.286578691E9, ~x~0=0.0, ~y~0=4.286578691E9] [L69] COND FALSE !(#t~short9) VAL [#NULL!base=0, #NULL!offset=0, #t~short9=false, ~res~0=4.286578691E9, ~x~0=0.0, ~y~0=4.286578691E9] [L69] COND TRUE !#t~short9 [L69] havoc #t~ret8; [L69] havoc #t~short9; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=4.286578691E9, ~x~0=0.0, ~y~0=4.286578691E9] [L70] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=4.286578691E9, ~x~0=0.0, ~y~0=4.286578691E9] ----- ----- 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] [L64] ~x~0 := 0.0; [L65] ~y~0 := ~someUnaryFLOAToperation(0.0); VAL [#NULL!base=0, #NULL!offset=0, ~x~0=0.0] [L66] CALL call #t~ret7 := fmin_float(~x~0, ~y~0); VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL!base=0, #NULL!offset=0] [L35-L42] ~x := #in~x; [L35-L42] ~y := #in~y; VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL!base=0, #NULL!offset=0, ~x=0.0, ~y=4.286578691E9] [L36] CALL call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0] [L12-L33] ~x := #in~x; [L13] havoc ~w~0; VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~x=0.0] [L16] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L17] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L18] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L18] ~w~0 := #t~mem0; [L18] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L18] havoc #t~union1; [L18] havoc #t~mem0; [L16] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L16] havoc ~#gf_u~0; VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=0.0] [L21] COND FALSE !(0 == ~w~0 % 4294967296 || 2147483648 == ~w~0 % 4294967296) VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=0.0] [L23-L24] COND FALSE !((~w~0 % 4294967296 >= 8388608 && ~w~0 % 4294967296 <= 2139095039) || (~w~0 % 4294967296 >= 2155872256 && ~w~0 % 4294967296 <= 4286578687)) VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=0.0] [L26-L27] COND FALSE !((~w~0 % 4294967296 >= 1 && ~w~0 % 4294967296 <= 8388607) || (~w~0 % 4294967296 >= 2147483649 && ~w~0 % 4294967296 <= 2155872255)) VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~w~0=4286578689, ~x=0.0] [L29] COND FALSE !(2139095040 == ~w~0 % 4294967296 || 4286578688 == ~w~0 % 4294967296) [L32] #res := 0; VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, #res=0, ~w~0=4286578689, ~x=0.0] [L36] RET call #t~ret2 := __fpclassify_float(~x); VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL!base=0, #NULL!offset=0, #t~ret2=0, ~x=0.0, ~y=4.286578691E9] [L36] assume -2147483648 <= #t~ret2 && #t~ret2 <= 2147483647; VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL!base=0, #NULL!offset=0, #t~ret2=0, ~x=0.0, ~y=4.286578691E9] [L36] COND TRUE 0 == #t~ret2 [L36] havoc #t~ret2; [L37] #res := ~y; VAL [#in~x=0.0, #in~y=4.286578691E9, #NULL!base=0, #NULL!offset=0, #res=4.286578691E9, ~x=0.0, ~y=4.286578691E9] [L66] RET call #t~ret7 := fmin_float(~x~0, ~y~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret7=4.286578691E9, ~x~0=0.0, ~y~0=4.286578691E9] [L66] ~res~0 := #t~ret7; [L66] havoc #t~ret7; [L69] #t~short9 := ~someBinaryFLOATComparisonOperation(~res~0, ~someUnaryFLOAToperation(0.0)); VAL [#NULL!base=0, #NULL!offset=0, #t~short9=false, ~res~0=4.286578691E9, ~x~0=0.0, ~y~0=4.286578691E9] [L69] COND FALSE !(#t~short9) VAL [#NULL!base=0, #NULL!offset=0, #t~short9=false, ~res~0=4.286578691E9, ~x~0=0.0, ~y~0=4.286578691E9] [L69] COND TRUE !#t~short9 [L69] havoc #t~ret8; [L69] havoc #t~short9; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=4.286578691E9, ~x~0=0.0, ~y~0=4.286578691E9] [L70] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=4.286578691E9, ~x~0=0.0, ~y~0=4.286578691E9] [L64] float x = 0.0f; [L65] float y = -0.0f; VAL [x=0] [L66] CALL, EXPR fmin_float(x, y) VAL [\old(x)=0, \old(y)=4286578691] [L36] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=0] [L13] __uint32_t w; VAL [\old(x)=0, x=0] [L16] ieee_float_shape_type gf_u; [L17] gf_u.value = (x) [L18] EXPR gf_u.word [L18] (w) = gf_u.word [L21] COND FALSE !(w == 0x00000000 || w == 0x80000000) VAL [\old(x)=0, w=4286578689, x=0] [L23-L24] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) VAL [\old(x)=0, w=4286578689, x=0] [L26-L27] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) VAL [\old(x)=0, w=4286578689, x=0] [L29] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L32] return 0; VAL [\old(x)=0, \result=0, w=4286578689, x=0] [L36] RET, EXPR __fpclassify_float(x) VAL [\old(x)=0, \old(y)=4286578691, __fpclassify_float(x)=0, x=0, y=4286578691] [L36] COND TRUE __fpclassify_float(x) == 0 [L37] return y; VAL [\old(x)=0, \old(y)=4286578691, \result=4286578691, x=0, y=4286578691] [L66] RET, EXPR fmin_float(x, y) VAL [fmin_float(x, y)=4286578691, x=0, y=4286578691] [L66] float res = fmin_float(x, y); [L69] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res=4286578691, res == -0.0f && __signbit_float(res) == 1=0, x=0, y=4286578691] [L69] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L70] __VERIFIER_error() VAL [res=4286578691, x=0, y=4286578691] ----- [2018-11-22 21:29:00,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 09:29:00 BoogieIcfgContainer [2018-11-22 21:29:00,726 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-22 21:29:00,726 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 21:29:00,726 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 21:29:00,726 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 21:29:00,726 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:29:00" (3/4) ... [2018-11-22 21:29:00,729 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-22 21:29:00,729 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 21:29:00,730 INFO L168 Benchmark]: Toolchain (without parser) took 947.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -111.5 MB). Peak memory consumption was 36.9 MB. Max. memory is 11.5 GB. [2018-11-22 21:29:00,731 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:29:00,731 INFO L168 Benchmark]: CACSL2BoogieTranslator took 167.85 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 945.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-22 21:29:00,732 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.53 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:29:00,732 INFO L168 Benchmark]: Boogie Preprocessor took 58.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -197.5 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-22 21:29:00,733 INFO L168 Benchmark]: RCFGBuilder took 199.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2018-11-22 21:29:00,733 INFO L168 Benchmark]: TraceAbstraction took 500.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 51.4 MB). Peak memory consumption was 51.4 MB. Max. memory is 11.5 GB. [2018-11-22 21:29:00,733 INFO L168 Benchmark]: Witness Printer took 3.27 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:29:00,736 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 167.85 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 945.7 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 14.53 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 58.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -197.5 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 199.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 500.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 51.4 MB). Peak memory consumption was 51.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.27 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 70]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 69, overapproximation of someUnaryFLOAToperation at line 65. Possible FailurePath: [L64] float x = 0.0f; [L65] float y = -0.0f; VAL [x=0] [L66] CALL, EXPR fmin_float(x, y) VAL [\old(x)=0, \old(y)=4286578691] [L36] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=0] [L13] __uint32_t w; VAL [\old(x)=0, x=0] [L16] ieee_float_shape_type gf_u; [L17] gf_u.value = (x) [L18] EXPR gf_u.word [L18] (w) = gf_u.word [L21] COND FALSE !(w == 0x00000000 || w == 0x80000000) VAL [\old(x)=0, w=4286578689, x=0] [L23-L24] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) VAL [\old(x)=0, w=4286578689, x=0] [L26-L27] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) VAL [\old(x)=0, w=4286578689, x=0] [L29] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L32] return 0; VAL [\old(x)=0, \result=0, w=4286578689, x=0] [L36] RET, EXPR __fpclassify_float(x) VAL [\old(x)=0, \old(y)=4286578691, __fpclassify_float(x)=0, x=0, y=4286578691] [L36] COND TRUE __fpclassify_float(x) == 0 [L37] return y; VAL [\old(x)=0, \old(y)=4286578691, \result=4286578691, x=0, y=4286578691] [L66] RET, EXPR fmin_float(x, y) VAL [fmin_float(x, y)=4286578691, x=0, y=4286578691] [L66] float res = fmin_float(x, y); [L69] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res=4286578691, res == -0.0f && __signbit_float(res) == 1=0, x=0, y=4286578691] [L69] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L70] __VERIFIER_error() VAL [res=4286578691, x=0, y=4286578691] - 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 [2018-11-22 21:29:02,117 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 21:29:02,118 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 21:29:02,127 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 21:29:02,127 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 21:29:02,128 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 21:29:02,129 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 21:29:02,130 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 21:29:02,131 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 21:29:02,132 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 21:29:02,132 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 21:29:02,132 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 21:29:02,133 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 21:29:02,134 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 21:29:02,135 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 21:29:02,135 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 21:29:02,136 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 21:29:02,137 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 21:29:02,138 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 21:29:02,139 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 21:29:02,140 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 21:29:02,141 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 21:29:02,143 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 21:29:02,143 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 21:29:02,143 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 21:29:02,144 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 21:29:02,144 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 21:29:02,145 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 21:29:02,145 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 21:29:02,146 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 21:29:02,146 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 21:29:02,147 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 21:29:02,147 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 21:29:02,147 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 21:29:02,148 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 21:29:02,148 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 21:29:02,148 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-22 21:29:02,159 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 21:29:02,159 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 21:29:02,160 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-22 21:29:02,160 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-22 21:29:02,160 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-22 21:29:02,160 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-22 21:29:02,160 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-22 21:29:02,160 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-22 21:29:02,160 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-22 21:29:02,161 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-22 21:29:02,161 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 21:29:02,161 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-22 21:29:02,161 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-22 21:29:02,162 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 21:29:02,162 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-22 21:29:02,162 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-22 21:29:02,162 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-22 21:29:02,162 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-22 21:29:02,162 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-22 21:29:02,162 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-22 21:29:02,162 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 21:29:02,163 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 21:29:02,163 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-22 21:29:02,163 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 21:29:02,163 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 21:29:02,163 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-22 21:29:02,163 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-22 21:29:02,163 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 21:29:02,164 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 21:29:02,164 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-22 21:29:02,164 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-22 21:29:02,164 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-22 21:29:02,164 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-22 21:29:02,164 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-22 21:29:02,164 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-22 21:29:02,165 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_3a4712a8-95a5-4406-91ea-567d9af7a453/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 -> cd0c8f7b91fa815011541d5ffb41102d34132ba8 [2018-11-22 21:29:02,195 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 21:29:02,204 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 21:29:02,206 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 21:29:02,207 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 21:29:02,208 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 21:29:02,208 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1232a_true-unreach-call.c [2018-11-22 21:29:02,251 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/bin-2019/utaipan/data/535ef25aa/b2d6ff69c9a84363acde6a40320bb67f/FLAG131726eac [2018-11-22 21:29:02,558 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 21:29:02,559 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/sv-benchmarks/c/float-newlib/float_req_bl_1232a_true-unreach-call.c [2018-11-22 21:29:02,562 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/bin-2019/utaipan/data/535ef25aa/b2d6ff69c9a84363acde6a40320bb67f/FLAG131726eac [2018-11-22 21:29:02,572 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/bin-2019/utaipan/data/535ef25aa/b2d6ff69c9a84363acde6a40320bb67f [2018-11-22 21:29:02,574 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 21:29:02,575 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 21:29:02,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 21:29:02,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 21:29:02,578 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 21:29:02,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:29:02" (1/1) ... [2018-11-22 21:29:02,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29d0518e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:29:02, skipping insertion in model container [2018-11-22 21:29:02,581 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:29:02" (1/1) ... [2018-11-22 21:29:02,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 21:29:02,606 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 21:29:02,742 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 21:29:02,745 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 21:29:02,765 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 21:29:02,784 INFO L195 MainTranslator]: Completed translation [2018-11-22 21:29:02,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:29:02 WrapperNode [2018-11-22 21:29:02,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 21:29:02,785 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 21:29:02,786 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 21:29:02,786 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 21:29:02,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:29:02" (1/1) ... [2018-11-22 21:29:02,800 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:29:02" (1/1) ... [2018-11-22 21:29:02,804 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 21:29:02,805 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 21:29:02,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 21:29:02,805 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 21:29:02,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:29:02" (1/1) ... [2018-11-22 21:29:02,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:29:02" (1/1) ... [2018-11-22 21:29:02,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:29:02" (1/1) ... [2018-11-22 21:29:02,814 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:29:02" (1/1) ... [2018-11-22 21:29:02,820 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:29:02" (1/1) ... [2018-11-22 21:29:02,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:29:02" (1/1) ... [2018-11-22 21:29:02,825 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:29:02" (1/1) ... [2018-11-22 21:29:02,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 21:29:02,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 21:29:02,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 21:29:02,827 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 21:29:02,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:29:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 21:29:02,909 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-22 21:29:02,910 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-22 21:29:02,910 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2018-11-22 21:29:02,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2018-11-22 21:29:02,910 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_float [2018-11-22 21:29:02,910 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_float [2018-11-22 21:29:02,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-22 21:29:02,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-22 21:29:02,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-22 21:29:02,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-22 21:29:02,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 21:29:02,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 21:29:02,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-22 21:29:02,911 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-22 21:29:02,911 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-22 21:29:02,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-22 21:29:03,071 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:29:03,103 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:29:03,107 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 21:29:03,107 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-22 21:29:03,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:29:03 BoogieIcfgContainer [2018-11-22 21:29:03,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 21:29:03,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-22 21:29:03,108 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-22 21:29:03,110 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-22 21:29:03,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:29:02" (1/3) ... [2018-11-22 21:29:03,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e6d468b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:29:03, skipping insertion in model container [2018-11-22 21:29:03,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:29:02" (2/3) ... [2018-11-22 21:29:03,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e6d468b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:29:03, skipping insertion in model container [2018-11-22 21:29:03,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:29:03" (3/3) ... [2018-11-22 21:29:03,111 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1232a_true-unreach-call.c [2018-11-22 21:29:03,117 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-22 21:29:03,121 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-22 21:29:03,133 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-22 21:29:03,151 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-22 21:29:03,151 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-22 21:29:03,151 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-22 21:29:03,151 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-22 21:29:03,151 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 21:29:03,151 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 21:29:03,152 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-22 21:29:03,152 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 21:29:03,152 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-22 21:29:03,161 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-11-22 21:29:03,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-22 21:29:03,165 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:29:03,165 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:29:03,166 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:29:03,169 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:29:03,170 INFO L82 PathProgramCache]: Analyzing trace with hash 148552213, now seen corresponding path program 1 times [2018-11-22 21:29:03,172 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-22 21:29:03,172 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-22 21:29:03,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:29:03,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:29:03,230 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:29:03,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:29:03,244 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-22 21:29:03,252 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:29:03,253 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-22 21:29:03,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-22 21:29:03,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-22 21:29:03,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-22 21:29:03,264 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-11-22 21:29:03,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:29:03,278 INFO L93 Difference]: Finished difference Result 75 states and 103 transitions. [2018-11-22 21:29:03,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-22 21:29:03,279 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-22 21:29:03,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:29:03,287 INFO L225 Difference]: With dead ends: 75 [2018-11-22 21:29:03,287 INFO L226 Difference]: Without dead ends: 38 [2018-11-22 21:29:03,290 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 [2018-11-22 21:29:03,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-22 21:29:03,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-11-22 21:29:03,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-22 21:29:03,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2018-11-22 21:29:03,322 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 21 [2018-11-22 21:29:03,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:29:03,322 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2018-11-22 21:29:03,323 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-22 21:29:03,323 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2018-11-22 21:29:03,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-22 21:29:03,324 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:29:03,324 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:29:03,324 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:29:03,324 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:29:03,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1171864516, now seen corresponding path program 1 times [2018-11-22 21:29:03,325 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-22 21:29:03,325 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-22 21:29:03,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:29:03,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:29:03,368 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:29:03,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:29:03,398 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-22 21:29:03,409 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:29:03,409 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-22 21:29:03,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-22 21:29:03,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-22 21:29:03,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-22 21:29:03,411 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand 4 states. [2018-11-22 21:29:03,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:29:03,435 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2018-11-22 21:29:03,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-22 21:29:03,436 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-11-22 21:29:03,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:29:03,437 INFO L225 Difference]: With dead ends: 56 [2018-11-22 21:29:03,437 INFO L226 Difference]: Without dead ends: 41 [2018-11-22 21:29:03,438 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 [2018-11-22 21:29:03,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-22 21:29:03,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-22 21:29:03,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-22 21:29:03,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2018-11-22 21:29:03,443 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 22 [2018-11-22 21:29:03,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:29:03,443 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2018-11-22 21:29:03,443 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-22 21:29:03,444 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2018-11-22 21:29:03,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-22 21:29:03,444 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:29:03,444 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:29:03,444 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:29:03,445 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:29:03,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1456590866, now seen corresponding path program 1 times [2018-11-22 21:29:03,445 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-22 21:29:03,445 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/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 [2018-11-22 21:29:03,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:29:03,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:29:03,485 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:29:03,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:29:03,583 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-22 21:29:03,594 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:29:03,594 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-22 21:29:03,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-22 21:29:03,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-22 21:29:03,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-22 21:29:03,595 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand 8 states. [2018-11-22 21:29:04,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:29:04,201 INFO L93 Difference]: Finished difference Result 60 states and 73 transitions. [2018-11-22 21:29:04,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-22 21:29:04,202 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-11-22 21:29:04,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:29:04,203 INFO L225 Difference]: With dead ends: 60 [2018-11-22 21:29:04,203 INFO L226 Difference]: Without dead ends: 40 [2018-11-22 21:29:04,203 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 [2018-11-22 21:29:04,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-22 21:29:04,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-11-22 21:29:04,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-22 21:29:04,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 47 transitions. [2018-11-22 21:29:04,207 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 47 transitions. Word has length 23 [2018-11-22 21:29:04,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:29:04,207 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 47 transitions. [2018-11-22 21:29:04,207 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-22 21:29:04,207 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 47 transitions. [2018-11-22 21:29:04,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-22 21:29:04,208 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:29:04,208 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] [2018-11-22 21:29:04,208 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:29:04,208 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:29:04,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1971562729, now seen corresponding path program 1 times [2018-11-22 21:29:04,209 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-22 21:29:04,209 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/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 [2018-11-22 21:29:04,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:29:04,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:29:04,243 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:29:04,256 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-22 21:29:04,256 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-22 21:29:04,263 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:29:04,263 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-22 21:29:04,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-22 21:29:04,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-22 21:29:04,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-22 21:29:04,264 INFO L87 Difference]: Start difference. First operand 40 states and 47 transitions. Second operand 4 states. [2018-11-22 21:29:04,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:29:04,292 INFO L93 Difference]: Finished difference Result 56 states and 64 transitions. [2018-11-22 21:29:04,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-22 21:29:04,293 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-11-22 21:29:04,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:29:04,294 INFO L225 Difference]: With dead ends: 56 [2018-11-22 21:29:04,294 INFO L226 Difference]: Without dead ends: 41 [2018-11-22 21:29:04,294 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 [2018-11-22 21:29:04,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-22 21:29:04,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-22 21:29:04,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-22 21:29:04,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2018-11-22 21:29:04,299 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 30 [2018-11-22 21:29:04,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:29:04,299 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2018-11-22 21:29:04,299 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-22 21:29:04,299 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2018-11-22 21:29:04,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-22 21:29:04,300 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:29:04,300 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] [2018-11-22 21:29:04,300 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:29:04,301 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:29:04,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1323623109, now seen corresponding path program 1 times [2018-11-22 21:29:04,301 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-22 21:29:04,301 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/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 [2018-11-22 21:29:04,307 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:29:04,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:29:04,340 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:29:04,417 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-22 21:29:04,418 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-22 21:29:04,425 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:29:04,425 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-22 21:29:04,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-22 21:29:04,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-22 21:29:04,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-22 21:29:04,426 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand 8 states. [2018-11-22 21:29:04,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:29:04,711 INFO L93 Difference]: Finished difference Result 58 states and 66 transitions. [2018-11-22 21:29:04,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-22 21:29:04,712 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2018-11-22 21:29:04,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:29:04,712 INFO L225 Difference]: With dead ends: 58 [2018-11-22 21:29:04,712 INFO L226 Difference]: Without dead ends: 35 [2018-11-22 21:29:04,713 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 [2018-11-22 21:29:04,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-22 21:29:04,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-11-22 21:29:04,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-22 21:29:04,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2018-11-22 21:29:04,716 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 31 [2018-11-22 21:29:04,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:29:04,716 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2018-11-22 21:29:04,716 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-22 21:29:04,716 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2018-11-22 21:29:04,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-22 21:29:04,717 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:29:04,717 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] [2018-11-22 21:29:04,717 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:29:04,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:29:04,718 INFO L82 PathProgramCache]: Analyzing trace with hash 207693948, now seen corresponding path program 1 times [2018-11-22 21:29:04,718 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-22 21:29:04,718 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/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 [2018-11-22 21:29:04,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:29:04,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:29:04,756 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:29:04,806 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-22 21:29:04,806 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-22 21:29:04,813 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:29:04,813 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-22 21:29:04,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-22 21:29:04,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-22 21:29:04,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-22 21:29:04,814 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand 5 states. [2018-11-22 21:29:04,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:29:04,866 INFO L93 Difference]: Finished difference Result 51 states and 53 transitions. [2018-11-22 21:29:04,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-22 21:29:04,867 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2018-11-22 21:29:04,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:29:04,868 INFO L225 Difference]: With dead ends: 51 [2018-11-22 21:29:04,868 INFO L226 Difference]: Without dead ends: 35 [2018-11-22 21:29:04,869 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 [2018-11-22 21:29:04,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-22 21:29:04,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-11-22 21:29:04,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-22 21:29:04,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2018-11-22 21:29:04,872 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 32 [2018-11-22 21:29:04,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:29:04,872 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2018-11-22 21:29:04,872 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-22 21:29:04,872 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2018-11-22 21:29:04,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-22 21:29:04,873 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:29:04,873 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] [2018-11-22 21:29:04,873 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:29:04,873 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:29:04,873 INFO L82 PathProgramCache]: Analyzing trace with hash -601652678, now seen corresponding path program 1 times [2018-11-22 21:29:04,873 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-22 21:29:04,873 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/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 [2018-11-22 21:29:04,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:29:04,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:29:04,910 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:29:04,958 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-22 21:29:04,959 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-22 21:29:04,965 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:29:04,965 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-22 21:29:04,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-22 21:29:04,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-22 21:29:04,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-22 21:29:04,966 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 8 states. [2018-11-22 21:29:05,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:29:05,107 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2018-11-22 21:29:05,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-22 21:29:05,108 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2018-11-22 21:29:05,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:29:05,108 INFO L225 Difference]: With dead ends: 38 [2018-11-22 21:29:05,109 INFO L226 Difference]: Without dead ends: 35 [2018-11-22 21:29:05,109 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 [2018-11-22 21:29:05,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-22 21:29:05,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-11-22 21:29:05,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-22 21:29:05,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2018-11-22 21:29:05,113 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 35 transitions. Word has length 32 [2018-11-22 21:29:05,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:29:05,113 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 35 transitions. [2018-11-22 21:29:05,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-22 21:29:05,113 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2018-11-22 21:29:05,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-11-22 21:29:05,114 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:29:05,114 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] [2018-11-22 21:29:05,114 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:29:05,114 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:29:05,115 INFO L82 PathProgramCache]: Analyzing trace with hash -193082209, now seen corresponding path program 1 times [2018-11-22 21:29:05,115 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-22 21:29:05,115 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/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 [2018-11-22 21:29:05,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:29:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:29:05,172 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 21:29:05,323 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-22 21:29:05,323 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-22 21:29:05,330 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:29:05,331 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-11-22 21:29:05,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-22 21:29:05,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-22 21:29:05,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-11-22 21:29:05,332 INFO L87 Difference]: Start difference. First operand 35 states and 35 transitions. Second operand 13 states. [2018-11-22 21:29:05,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:29:05,637 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2018-11-22 21:29:05,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-22 21:29:05,637 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 40 [2018-11-22 21:29:05,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:29:05,638 INFO L225 Difference]: With dead ends: 35 [2018-11-22 21:29:05,638 INFO L226 Difference]: Without dead ends: 0 [2018-11-22 21:29:05,638 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2018-11-22 21:29:05,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-22 21:29:05,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-22 21:29:05,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-22 21:29:05,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-22 21:29:05,639 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 40 [2018-11-22 21:29:05,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:29:05,639 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 21:29:05,639 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-22 21:29:05,639 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-22 21:29:05,639 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-22 21:29:05,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-22 21:29:05,761 INFO L451 ceAbstractionStarter]: At program point fmin_floatENTRY(lines 35 42) the Hoare annotation is: true [2018-11-22 21:29:05,761 INFO L448 ceAbstractionStarter]: For program point fmin_floatEXIT(lines 35 42) no Hoare annotation was computed. [2018-11-22 21:29:05,761 INFO L448 ceAbstractionStarter]: For program point fmin_floatFINAL(lines 35 42) no Hoare annotation was computed. [2018-11-22 21:29:05,761 INFO L448 ceAbstractionStarter]: For program point L41(line 41) no Hoare annotation was computed. [2018-11-22 21:29:05,761 INFO L448 ceAbstractionStarter]: For program point L41-2(line 41) no Hoare annotation was computed. [2018-11-22 21:29:05,761 INFO L444 ceAbstractionStarter]: At program point L38(line 38) the Hoare annotation is: (let ((.cse0 (= fmin_float_~x |fmin_float_#in~x|))) (or (and .cse0 (exists ((__fpclassify_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __fpclassify_float_~w~0) ((_ extract 30 23) __fpclassify_float_~w~0) ((_ extract 22 0) __fpclassify_float_~w~0)) |fmin_float_#in~x|) (not (= __fpclassify_float_~w~0 (_ bv0 32)))))) (and .cse0 (= fmin_float_~y |fmin_float_#in~y|)))) [2018-11-22 21:29:05,761 INFO L448 ceAbstractionStarter]: For program point L38-1(lines 38 39) no Hoare annotation was computed. [2018-11-22 21:29:05,761 INFO L444 ceAbstractionStarter]: At program point L36(line 36) the Hoare annotation is: (and (= fmin_float_~x |fmin_float_#in~x|) (= fmin_float_~y |fmin_float_#in~y|)) [2018-11-22 21:29:05,761 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 36 37) no Hoare annotation was computed. [2018-11-22 21:29:05,762 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-22 21:29:05,762 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-22 21:29:05,762 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-22 21:29:05,762 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-22 21:29:05,762 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-22 21:29:05,762 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-22 21:29:05,762 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-22 21:29:05,762 INFO L448 ceAbstractionStarter]: For program point L66-1(line 66) no Hoare annotation was computed. [2018-11-22 21:29:05,762 INFO L448 ceAbstractionStarter]: For program point L69-4(lines 69 72) no Hoare annotation was computed. [2018-11-22 21:29:05,762 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 56 75) the Hoare annotation is: true [2018-11-22 21:29:05,762 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 56 75) no Hoare annotation was computed. [2018-11-22 21:29:05,762 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 70) no Hoare annotation was computed. [2018-11-22 21:29:05,762 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 56 75) no Hoare annotation was computed. [2018-11-22 21:29:05,762 INFO L448 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-11-22 21:29:05,763 INFO L448 ceAbstractionStarter]: For program point L69(line 69) no Hoare annotation was computed. [2018-11-22 21:29:05,763 INFO L444 ceAbstractionStarter]: At program point L69-1(line 69) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= (_ +zero 8 24) main_~x~0) (= main_~res~0 .cse0) |main_#t~short9| (= main_~y~0 .cse0))) [2018-11-22 21:29:05,763 INFO L448 ceAbstractionStarter]: For program point L69-2(line 69) no Hoare annotation was computed. [2018-11-22 21:29:05,763 INFO L444 ceAbstractionStarter]: At program point L66(line 66) the Hoare annotation is: (and (= (_ +zero 8 24) main_~x~0) (= main_~y~0 (fp.neg (_ +zero 8 24)))) [2018-11-22 21:29:05,763 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 32) no Hoare annotation was computed. [2018-11-22 21:29:05,763 INFO L448 ceAbstractionStarter]: For program point __fpclassify_floatFINAL(lines 12 33) no Hoare annotation was computed. [2018-11-22 21:29:05,763 INFO L448 ceAbstractionStarter]: For program point L23(lines 23 32) no Hoare annotation was computed. [2018-11-22 21:29:05,763 INFO L448 ceAbstractionStarter]: For program point L15-1(lines 15 19) no Hoare annotation was computed. [2018-11-22 21:29:05,763 INFO L444 ceAbstractionStarter]: At program point L15-2(lines 15 19) the Hoare annotation is: (= __fpclassify_float_~x |__fpclassify_float_#in~x|) [2018-11-22 21:29:05,764 INFO L448 ceAbstractionStarter]: For program point L15-3(lines 12 33) no Hoare annotation was computed. [2018-11-22 21:29:05,764 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 32) no Hoare annotation was computed. [2018-11-22 21:29:05,764 INFO L451 ceAbstractionStarter]: At program point __fpclassify_floatENTRY(lines 12 33) the Hoare annotation is: true [2018-11-22 21:29:05,764 INFO L448 ceAbstractionStarter]: For program point __fpclassify_floatEXIT(lines 12 33) no Hoare annotation was computed. [2018-11-22 21:29:05,764 INFO L448 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 44 54) no Hoare annotation was computed. [2018-11-22 21:29:05,764 INFO L451 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 44 54) the Hoare annotation is: true [2018-11-22 21:29:05,764 INFO L448 ceAbstractionStarter]: For program point L47-1(lines 47 51) no Hoare annotation was computed. [2018-11-22 21:29:05,764 INFO L444 ceAbstractionStarter]: At program point L47-2(lines 47 51) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-11-22 21:29:05,764 INFO L448 ceAbstractionStarter]: For program point L47-3(lines 47 51) no Hoare annotation was computed. [2018-11-22 21:29:05,764 INFO L448 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 44 54) no Hoare annotation was computed. [2018-11-22 21:29:05,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 09:29:05 BoogieIcfgContainer [2018-11-22 21:29:05,772 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-22 21:29:05,773 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 21:29:05,773 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 21:29:05,773 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 21:29:05,773 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:29:03" (3/4) ... [2018-11-22 21:29:05,776 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-22 21:29:05,780 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fmin_float [2018-11-22 21:29:05,780 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-22 21:29:05,780 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-22 21:29:05,780 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __fpclassify_float [2018-11-22 21:29:05,781 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-11-22 21:29:05,784 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-11-22 21:29:05,785 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-22 21:29:05,785 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-22 21:29:05,803 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-22 21:29:05,804 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-22 21:29:05,827 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3a4712a8-95a5-4406-91ea-567d9af7a453/bin-2019/utaipan/witness.graphml [2018-11-22 21:29:05,827 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 21:29:05,828 INFO L168 Benchmark]: Toolchain (without parser) took 3253.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 949.7 MB in the beginning and 842.9 MB in the end (delta: 106.9 MB). Peak memory consumption was 251.6 MB. Max. memory is 11.5 GB. [2018-11-22 21:29:05,829 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:29:05,829 INFO L168 Benchmark]: CACSL2BoogieTranslator took 209.80 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-22 21:29:05,830 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.10 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:29:05,830 INFO L168 Benchmark]: Boogie Preprocessor took 22.07 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:29:05,830 INFO L168 Benchmark]: RCFGBuilder took 280.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -180.3 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2018-11-22 21:29:05,830 INFO L168 Benchmark]: TraceAbstraction took 2664.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 849.7 MB in the end (delta: 264.3 MB). Peak memory consumption was 264.3 MB. Max. memory is 11.5 GB. [2018-11-22 21:29:05,830 INFO L168 Benchmark]: Witness Printer took 54.62 ms. Allocated memory is still 1.2 GB. Free memory was 849.7 MB in the beginning and 842.9 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-22 21:29:05,832 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 209.80 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.10 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.07 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 280.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -180.3 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2664.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 849.7 MB in the end (delta: 264.3 MB). Peak memory consumption was 264.3 MB. Max. memory is 11.5 GB. * Witness Printer took 54.62 ms. Allocated memory is still 1.2 GB. Free memory was 849.7 MB in the beginning and 842.9 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 70]: 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: 15]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 42 locations, 1 error locations. SAFE Result, 2.6s OverallTime, 8 OverallIterations, 2 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 296 SDtfs, 121 SDslu, 975 SDs, 0 SdLazy, 365 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 242 GetRequests, 187 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.7s 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, 68 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, 20350 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...