./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0920b_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b5176838-0d3d-4414-85e1-7acabd6161ba/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b5176838-0d3d-4414-85e1-7acabd6161ba/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b5176838-0d3d-4414-85e1-7acabd6161ba/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b5176838-0d3d-4414-85e1-7acabd6161ba/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0920b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b5176838-0d3d-4414-85e1-7acabd6161ba/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b5176838-0d3d-4414-85e1-7acabd6161ba/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash df7585bdb7f55dd146660d2fca5142563fdf3df8 ...................................................................................................................................................................................................................................................................................................................... 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_b5176838-0d3d-4414-85e1-7acabd6161ba/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b5176838-0d3d-4414-85e1-7acabd6161ba/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b5176838-0d3d-4414-85e1-7acabd6161ba/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b5176838-0d3d-4414-85e1-7acabd6161ba/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0920b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b5176838-0d3d-4414-85e1-7acabd6161ba/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b5176838-0d3d-4414-85e1-7acabd6161ba/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash df7585bdb7f55dd146660d2fca5142563fdf3df8 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 00:27:13,970 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:27:13,971 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:27:13,979 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:27:13,980 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:27:13,981 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:27:13,982 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:27:13,983 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:27:13,985 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:27:13,987 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:27:13,988 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:27:13,988 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:27:13,989 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:27:13,989 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:27:13,990 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:27:13,991 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:27:13,991 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:27:14,001 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:27:14,002 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:27:14,003 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:27:14,004 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:27:14,005 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:27:14,007 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:27:14,007 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:27:14,007 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:27:14,008 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:27:14,009 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:27:14,010 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:27:14,010 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:27:14,011 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:27:14,011 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:27:14,012 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:27:14,012 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:27:14,012 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:27:14,014 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:27:14,014 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:27:14,014 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b5176838-0d3d-4414-85e1-7acabd6161ba/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-10-27 00:27:14,025 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:27:14,026 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:27:14,026 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:27:14,026 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-27 00:27:14,027 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 00:27:14,027 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 00:27:14,027 INFO L133 SettingsManager]: * Use SBE=true [2018-10-27 00:27:14,027 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:27:14,027 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 00:27:14,028 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 00:27:14,028 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 00:27:14,028 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:27:14,028 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:27:14,029 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:27:14,029 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:27:14,030 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 00:27:14,030 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:27:14,030 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:27:14,030 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:27:14,030 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:27:14,030 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:27:14,030 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:27:14,031 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:27:14,031 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:27:14,031 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:27:14,031 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:27:14,031 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-27 00:27:14,031 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:27:14,031 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 00:27:14,032 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_b5176838-0d3d-4414-85e1-7acabd6161ba/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df7585bdb7f55dd146660d2fca5142563fdf3df8 [2018-10-27 00:27:14,058 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:27:14,067 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:27:14,069 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:27:14,070 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:27:14,071 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:27:14,071 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b5176838-0d3d-4414-85e1-7acabd6161ba/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0920b_true-unreach-call.c [2018-10-27 00:27:14,113 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b5176838-0d3d-4414-85e1-7acabd6161ba/bin-2019/uautomizer/data/0fc1b0edc/bbeb18c10fe74a7d9a798444acae508c/FLAG766741b7d [2018-10-27 00:27:14,492 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:27:14,493 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b5176838-0d3d-4414-85e1-7acabd6161ba/sv-benchmarks/c/float-newlib/float_req_bl_0920b_true-unreach-call.c [2018-10-27 00:27:14,501 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b5176838-0d3d-4414-85e1-7acabd6161ba/bin-2019/uautomizer/data/0fc1b0edc/bbeb18c10fe74a7d9a798444acae508c/FLAG766741b7d [2018-10-27 00:27:14,511 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b5176838-0d3d-4414-85e1-7acabd6161ba/bin-2019/uautomizer/data/0fc1b0edc/bbeb18c10fe74a7d9a798444acae508c [2018-10-27 00:27:14,514 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:27:14,515 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 00:27:14,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:27:14,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:27:14,520 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:27:14,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:27:14" (1/1) ... [2018-10-27 00:27:14,523 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18ae2364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:14, skipping insertion in model container [2018-10-27 00:27:14,523 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:27:14" (1/1) ... [2018-10-27 00:27:14,531 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:27:14,557 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:27:14,691 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:27:14,694 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:27:14,727 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:27:14,745 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:27:14,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:14 WrapperNode [2018-10-27 00:27:14,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:27:14,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:27:14,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:27:14,746 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:27:14,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:14" (1/1) ... [2018-10-27 00:27:14,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:14" (1/1) ... [2018-10-27 00:27:14,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:14" (1/1) ... [2018-10-27 00:27:14,767 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:14" (1/1) ... [2018-10-27 00:27:14,776 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:14" (1/1) ... [2018-10-27 00:27:14,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:14" (1/1) ... [2018-10-27 00:27:14,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:14" (1/1) ... [2018-10-27 00:27:14,785 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:27:14,785 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:27:14,785 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:27:14,786 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:27:14,786 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b5176838-0d3d-4414-85e1-7acabd6161ba/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:27:14,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:27:14,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:27:14,904 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-10-27 00:27:14,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-10-27 00:27:14,905 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-10-27 00:27:14,905 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:27:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-27 00:27:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-10-27 00:27:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-10-27 00:27:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-27 00:27:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-10-27 00:27:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-27 00:27:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-27 00:27:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-10-27 00:27:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-10-27 00:27:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-10-27 00:27:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-10-27 00:27:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:27:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:27:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:27:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-10-27 00:27:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-10-27 00:27:15,482 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:27:15,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:27:15 BoogieIcfgContainer [2018-10-27 00:27:15,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:27:15,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:27:15,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:27:15,487 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:27:15,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:27:14" (1/3) ... [2018-10-27 00:27:15,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5c2b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:27:15, skipping insertion in model container [2018-10-27 00:27:15,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:14" (2/3) ... [2018-10-27 00:27:15,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d5c2b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:27:15, skipping insertion in model container [2018-10-27 00:27:15,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:27:15" (3/3) ... [2018-10-27 00:27:15,490 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920b_true-unreach-call.c [2018-10-27 00:27:15,498 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:27:15,505 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 00:27:15,518 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 00:27:15,547 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 00:27:15,548 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:27:15,548 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:27:15,548 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:27:15,548 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:27:15,548 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:27:15,548 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:27:15,548 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:27:15,548 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:27:15,564 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states. [2018-10-27 00:27:15,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-27 00:27:15,569 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:27:15,570 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:27:15,572 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:27:15,576 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:27:15,576 INFO L82 PathProgramCache]: Analyzing trace with hash 613241854, now seen corresponding path program 1 times [2018-10-27 00:27:15,578 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 00:27:15,578 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 00:27:15,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:27:15,620 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:27:15,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:27:15,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:27:15,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:27:15,711 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:27:15,711 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 00:27:15,714 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-27 00:27:15,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-27 00:27:15,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 00:27:15,727 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 2 states. [2018-10-27 00:27:15,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:27:15,751 INFO L93 Difference]: Finished difference Result 126 states and 160 transitions. [2018-10-27 00:27:15,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 00:27:15,752 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-10-27 00:27:15,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:27:15,762 INFO L225 Difference]: With dead ends: 126 [2018-10-27 00:27:15,764 INFO L226 Difference]: Without dead ends: 63 [2018-10-27 00:27:15,767 INFO L605 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 [2018-10-27 00:27:15,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-10-27 00:27:15,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-10-27 00:27:15,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-10-27 00:27:15,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 73 transitions. [2018-10-27 00:27:15,806 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 73 transitions. Word has length 21 [2018-10-27 00:27:15,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:27:15,806 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 73 transitions. [2018-10-27 00:27:15,807 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-27 00:27:15,807 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 73 transitions. [2018-10-27 00:27:15,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-27 00:27:15,808 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:27:15,808 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:27:15,808 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:27:15,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:27:15,809 INFO L82 PathProgramCache]: Analyzing trace with hash -569562436, now seen corresponding path program 1 times [2018-10-27 00:27:15,810 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 00:27:15,810 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 00:27:15,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:27:15,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:27:15,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:27:15,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 00:27:15,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 00:27:15,920 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-27 00:27:15,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:27:15 BoogieIcfgContainer [2018-10-27 00:27:15,955 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 00:27:15,955 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 00:27:15,956 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 00:27:15,956 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 00:27:15,956 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:27:15" (3/4) ... [2018-10-27 00:27:15,959 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-27 00:27:15,959 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 00:27:15,960 INFO L168 Benchmark]: Toolchain (without parser) took 1445.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 959.7 MB in the beginning and 1.1 GB in the end (delta: -147.3 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2018-10-27 00:27:15,964 INFO L168 Benchmark]: CDTParser took 0.15 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. [2018-10-27 00:27:15,965 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.03 ms. Allocated memory is still 1.0 GB. Free memory was 959.7 MB in the beginning and 946.1 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-10-27 00:27:15,965 INFO L168 Benchmark]: Boogie Preprocessor took 38.80 ms. Allocated memory is still 1.0 GB. Free memory was 946.1 MB in the beginning and 943.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:27:15,967 INFO L168 Benchmark]: RCFGBuilder took 698.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -192.3 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2018-10-27 00:27:15,968 INFO L168 Benchmark]: TraceAbstraction took 470.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. [2018-10-27 00:27:15,969 INFO L168 Benchmark]: Witness Printer took 4.00 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. [2018-10-27 00:27:15,971 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 230.03 ms. Allocated memory is still 1.0 GB. Free memory was 959.7 MB in the beginning and 946.1 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.80 ms. Allocated memory is still 1.0 GB. Free memory was 946.1 MB in the beginning and 943.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 698.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -192.3 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 470.90 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 28.6 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.00 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: 125]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 111, overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 43. Possible FailurePath: [L24-L28] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L30] static const float zero_log = 0.0; VAL [\old(Lg1_log)=6442450960, \old(Lg2_log)=6442450961, \old(Lg3_log)=6442450945, \old(Lg4_log)=6442450948, \old(Lg5_log)=6442450950, \old(Lg6_log)=6442450959, \old(Lg7_log)=6442450958, \old(ln2_hi_log)=6442450947, \old(ln2_lo_log)=6442450952, \old(two25_log)=6442450957, \old(zero_log)=6442450954, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L120] float x = -1.0f / 0.0f; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L121] CALL, EXPR __ieee754_logf(x) VAL [\old(x)=6442450951, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L33] float hfsq, f, s, z, R, w, t1, t2, dk; [L34] __int32_t k, ix, i, j; VAL [\old(x)=6442450951, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450951, zero_log=0] [L37] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=6442450951, gf_u={6442450955:0}, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450951, zero_log=0] [L38] FCALL gf_u.value = (x) VAL [\old(x)=6442450951, gf_u={6442450955:0}, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450951, zero_log=0] [L39] EXPR, FCALL gf_u.word VAL [\old(x)=6442450951, gf_u={6442450955:0}, gf_u.word=6442450944, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450951, zero_log=0] [L39] (ix) = gf_u.word [L40] COND FALSE !(0) VAL [\old(x)=6442450951, ix=-2147483648, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450951, zero_log=0] [L42] k = 0 VAL [\old(x)=6442450951, ix=-2147483648, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450951, zero_log=0] [L43] COND TRUE ((ix & 0x7fffffff) == 0) [L44] RET return -two25_log / zero_log; VAL [\old(x)=6442450951, ix=-2147483648, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450951, zero_log=0] [L121] EXPR __ieee754_logf(x) VAL [__ieee754_logf(x)=6442450949, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450951, zero_log=0] [L121] float res = __ieee754_logf(x); [L124] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450949, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L111] RET return x != x; VAL [\old(x)=6442450949, \result=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450949, zero_log=0] [L124] EXPR isnan_float(res) VAL [isnan_float(res)=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=6442450949, two25_log=33554432, x=6442450951, zero_log=0] [L124] COND TRUE !isnan_float(res) [L125] __VERIFIER_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=6442450949, two25_log=33554432, x=6442450951, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 81 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 77 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=67occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-10-27 00:27:17,809 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:27:17,811 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:27:17,819 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:27:17,819 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:27:17,820 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:27:17,821 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:27:17,822 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:27:17,823 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:27:17,824 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:27:17,824 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:27:17,825 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:27:17,825 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:27:17,826 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:27:17,827 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:27:17,827 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:27:17,828 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:27:17,829 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:27:17,830 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:27:17,832 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:27:17,840 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:27:17,841 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:27:17,843 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:27:17,843 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:27:17,843 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:27:17,844 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:27:17,848 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:27:17,849 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:27:17,849 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:27:17,850 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:27:17,850 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:27:17,850 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:27:17,851 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:27:17,851 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:27:17,851 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:27:17,852 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:27:17,852 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b5176838-0d3d-4414-85e1-7acabd6161ba/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-10-27 00:27:17,868 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:27:17,868 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:27:17,871 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:27:17,871 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-27 00:27:17,871 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 00:27:17,872 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 00:27:17,872 INFO L133 SettingsManager]: * Use SBE=true [2018-10-27 00:27:17,872 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:27:17,872 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 00:27:17,872 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 00:27:17,872 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:27:17,872 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:27:17,872 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:27:17,873 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:27:17,873 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-27 00:27:17,873 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-27 00:27:17,873 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 00:27:17,873 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:27:17,873 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:27:17,873 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:27:17,873 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:27:17,874 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:27:17,874 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:27:17,874 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:27:17,874 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:27:17,874 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:27:17,874 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:27:17,874 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-10-27 00:27:17,874 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:27:17,875 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-27 00:27:17,875 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-27 00:27:17,875 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_b5176838-0d3d-4414-85e1-7acabd6161ba/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df7585bdb7f55dd146660d2fca5142563fdf3df8 [2018-10-27 00:27:17,917 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:27:17,927 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:27:17,930 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:27:17,931 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:27:17,931 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:27:17,932 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b5176838-0d3d-4414-85e1-7acabd6161ba/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0920b_true-unreach-call.c [2018-10-27 00:27:17,977 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b5176838-0d3d-4414-85e1-7acabd6161ba/bin-2019/uautomizer/data/66ed59d3e/1af4b401b2144b00a9e797b35577cfc8/FLAG4b36ad2d4 [2018-10-27 00:27:18,373 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:27:18,374 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b5176838-0d3d-4414-85e1-7acabd6161ba/sv-benchmarks/c/float-newlib/float_req_bl_0920b_true-unreach-call.c [2018-10-27 00:27:18,380 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b5176838-0d3d-4414-85e1-7acabd6161ba/bin-2019/uautomizer/data/66ed59d3e/1af4b401b2144b00a9e797b35577cfc8/FLAG4b36ad2d4 [2018-10-27 00:27:18,391 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b5176838-0d3d-4414-85e1-7acabd6161ba/bin-2019/uautomizer/data/66ed59d3e/1af4b401b2144b00a9e797b35577cfc8 [2018-10-27 00:27:18,393 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:27:18,394 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 00:27:18,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:27:18,395 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:27:18,398 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:27:18,398 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:27:18" (1/1) ... [2018-10-27 00:27:18,400 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5356465f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:18, skipping insertion in model container [2018-10-27 00:27:18,400 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:27:18" (1/1) ... [2018-10-27 00:27:18,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:27:18,429 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:27:18,594 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:27:18,598 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:27:18,655 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:27:18,685 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:27:18,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:18 WrapperNode [2018-10-27 00:27:18,685 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:27:18,686 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:27:18,686 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:27:18,686 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:27:18,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:18" (1/1) ... [2018-10-27 00:27:18,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:18" (1/1) ... [2018-10-27 00:27:18,712 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:18" (1/1) ... [2018-10-27 00:27:18,712 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:18" (1/1) ... [2018-10-27 00:27:18,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:18" (1/1) ... [2018-10-27 00:27:18,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:18" (1/1) ... [2018-10-27 00:27:18,730 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:18" (1/1) ... [2018-10-27 00:27:18,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:27:18,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:27:18,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:27:18,734 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:27:18,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b5176838-0d3d-4414-85e1-7acabd6161ba/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:27:18,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:27:18,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:27:18,838 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-10-27 00:27:18,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-10-27 00:27:18,838 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-10-27 00:27:18,838 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:27:18,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-10-27 00:27:18,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-10-27 00:27:18,839 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-10-27 00:27:18,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-10-27 00:27:18,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-10-27 00:27:18,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-10-27 00:27:18,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-27 00:27:18,839 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-10-27 00:27:18,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-10-27 00:27:18,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-10-27 00:27:18,840 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-10-27 00:27:18,840 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:27:18,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:27:18,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:27:18,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-10-27 00:27:18,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-10-27 00:27:19,117 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-27 00:27:19,143 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-27 00:27:29,724 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-27 00:27:29,730 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-27 00:27:30,361 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-27 00:27:30,369 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-27 00:27:30,498 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:27:30,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:27:30 BoogieIcfgContainer [2018-10-27 00:27:30,498 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:27:30,499 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:27:30,499 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:27:30,502 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:27:30,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:27:18" (1/3) ... [2018-10-27 00:27:30,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf102ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:27:30, skipping insertion in model container [2018-10-27 00:27:30,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:27:18" (2/3) ... [2018-10-27 00:27:30,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf102ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:27:30, skipping insertion in model container [2018-10-27 00:27:30,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:27:30" (3/3) ... [2018-10-27 00:27:30,507 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920b_true-unreach-call.c [2018-10-27 00:27:30,513 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:27:30,518 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 00:27:30,531 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 00:27:30,558 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 00:27:30,561 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:27:30,561 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:27:30,561 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:27:30,561 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:27:30,562 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:27:30,562 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:27:30,562 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:27:30,562 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:27:30,577 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states. [2018-10-27 00:27:30,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-27 00:27:30,582 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:27:30,583 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:27:30,597 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:27:30,601 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:27:30,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1277566486, now seen corresponding path program 1 times [2018-10-27 00:27:30,605 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:27:30,606 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b5176838-0d3d-4414-85e1-7acabd6161ba/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-27 00:27:30,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-10-27 00:27:30,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:27:30,854 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:27:30,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:27:30,869 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:27:30,885 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:27:30,886 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 00:27:30,889 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-27 00:27:30,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-27 00:27:30,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 00:27:30,903 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 2 states. [2018-10-27 00:27:30,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:27:30,921 INFO L93 Difference]: Finished difference Result 124 states and 158 transitions. [2018-10-27 00:27:30,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 00:27:30,923 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-10-27 00:27:30,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:27:30,933 INFO L225 Difference]: With dead ends: 124 [2018-10-27 00:27:30,933 INFO L226 Difference]: Without dead ends: 62 [2018-10-27 00:27:30,936 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 00:27:30,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-10-27 00:27:30,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-10-27 00:27:30,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-10-27 00:27:30,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 72 transitions. [2018-10-27 00:27:30,968 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 72 transitions. Word has length 20 [2018-10-27 00:27:30,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:27:30,969 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 72 transitions. [2018-10-27 00:27:30,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-27 00:27:30,969 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 72 transitions. [2018-10-27 00:27:30,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-10-27 00:27:30,970 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:27:30,970 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:27:30,970 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:27:30,970 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:27:30,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1730013961, now seen corresponding path program 1 times [2018-10-27 00:27:30,971 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:27:30,971 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b5176838-0d3d-4414-85e1-7acabd6161ba/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-27 00:27:30,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-10-27 00:27:31,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:27:31,244 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:27:31,385 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-10-27 00:27:31,397 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-10-27 00:27:31,398 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:27:31,423 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:27:31,509 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:27:31,510 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-10-27 00:27:31,582 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-10-27 00:27:31,597 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-10-27 00:27:31,597 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:27:31,625 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:27:31,649 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:27:31,649 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-10-27 00:27:31,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:27:31,833 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:27:31,843 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:27:31,844 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-10-27 00:27:31,845 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-27 00:27:31,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-27 00:27:31,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-10-27 00:27:31,846 INFO L87 Difference]: Start difference. First operand 62 states and 72 transitions. Second operand 8 states. [2018-10-27 00:27:36,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:27:36,066 INFO L93 Difference]: Finished difference Result 80 states and 89 transitions. [2018-10-27 00:27:36,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-27 00:27:36,068 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2018-10-27 00:27:36,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:27:36,071 INFO L225 Difference]: With dead ends: 80 [2018-10-27 00:27:36,071 INFO L226 Difference]: Without dead ends: 70 [2018-10-27 00:27:36,072 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-10-27 00:27:36,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-10-27 00:27:36,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 62. [2018-10-27 00:27:36,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-10-27 00:27:36,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 71 transitions. [2018-10-27 00:27:36,081 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 71 transitions. Word has length 29 [2018-10-27 00:27:36,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:27:36,082 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 71 transitions. [2018-10-27 00:27:36,082 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-27 00:27:36,082 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 71 transitions. [2018-10-27 00:27:36,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-10-27 00:27:36,083 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:27:36,083 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:27:36,083 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:27:36,084 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:27:36,084 INFO L82 PathProgramCache]: Analyzing trace with hash -1482119536, now seen corresponding path program 1 times [2018-10-27 00:27:36,086 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:27:36,086 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b5176838-0d3d-4414-85e1-7acabd6161ba/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-10-27 00:27:36,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:27:36,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:27:36,323 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:27:37,925 WARN L179 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 11 [2018-10-27 00:27:38,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:27:38,067 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:27:38,081 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:27:38,081 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-10-27 00:27:38,081 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-27 00:27:38,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-27 00:27:38,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-10-27 00:27:38,082 INFO L87 Difference]: Start difference. First operand 62 states and 71 transitions. Second operand 10 states. [2018-10-27 00:27:39,136 WARN L179 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-27 00:27:54,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:27:54,453 INFO L93 Difference]: Finished difference Result 77 states and 86 transitions. [2018-10-27 00:27:54,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-27 00:27:54,456 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2018-10-27 00:27:54,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:27:54,457 INFO L225 Difference]: With dead ends: 77 [2018-10-27 00:27:54,457 INFO L226 Difference]: Without dead ends: 70 [2018-10-27 00:27:54,457 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-10-27 00:27:54,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-10-27 00:27:54,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 62. [2018-10-27 00:27:54,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-10-27 00:27:54,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 70 transitions. [2018-10-27 00:27:54,469 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 70 transitions. Word has length 30 [2018-10-27 00:27:54,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:27:54,470 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 70 transitions. [2018-10-27 00:27:54,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-27 00:27:54,470 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 70 transitions. [2018-10-27 00:27:54,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-10-27 00:27:54,471 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:27:54,471 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:27:54,471 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:27:54,471 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:27:54,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1234903141, now seen corresponding path program 1 times [2018-10-27 00:27:54,472 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:27:54,472 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b5176838-0d3d-4414-85e1-7acabd6161ba/bin-2019/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-10-27 00:27:54,477 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:27:54,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:27:54,544 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:27:54,567 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-10-27 00:27:54,570 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-10-27 00:27:54,570 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:27:54,575 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:27:54,584 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:27:54,584 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-10-27 00:27:54,625 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-10-27 00:27:54,628 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-10-27 00:27:54,628 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 00:27:54,630 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:27:54,633 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 00:27:54,633 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-10-27 00:27:54,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:27:54,760 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:27:54,773 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:27:54,773 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-10-27 00:27:54,773 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-27 00:27:54,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-27 00:27:54,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-10-27 00:27:54,774 INFO L87 Difference]: Start difference. First operand 62 states and 70 transitions. Second operand 8 states. [2018-10-27 00:27:57,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:27:57,965 INFO L93 Difference]: Finished difference Result 70 states and 78 transitions. [2018-10-27 00:27:57,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-27 00:27:57,966 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2018-10-27 00:27:57,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:27:57,966 INFO L225 Difference]: With dead ends: 70 [2018-10-27 00:27:57,966 INFO L226 Difference]: Without dead ends: 0 [2018-10-27 00:27:57,967 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-10-27 00:27:57,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-27 00:27:57,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-27 00:27:57,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-27 00:27:57,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 00:27:57,968 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-10-27 00:27:57,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:27:57,968 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 00:27:57,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-27 00:27:57,968 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-27 00:27:57,968 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 00:27:57,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-27 00:27:58,285 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 111) no Hoare annotation was computed. [2018-10-27 00:27:58,285 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 111) the Hoare annotation is: true [2018-10-27 00:27:58,285 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 111) no Hoare annotation was computed. [2018-10-27 00:27:58,285 INFO L425 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-10-27 00:27:58,285 INFO L425 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-10-27 00:27:58,286 INFO L425 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2018-10-27 00:27:58,286 INFO L425 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-10-27 00:27:58,286 INFO L425 ceAbstractionStarter]: For program point L18-2(line 18) no Hoare annotation was computed. [2018-10-27 00:27:58,286 INFO L425 ceAbstractionStarter]: For program point isinf_floatENTRY(lines 13 22) no Hoare annotation was computed. [2018-10-27 00:27:58,286 INFO L425 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2018-10-27 00:27:58,286 INFO L425 ceAbstractionStarter]: For program point L16-2(line 16) no Hoare annotation was computed. [2018-10-27 00:27:58,286 INFO L425 ceAbstractionStarter]: For program point L15-1(lines 15 19) no Hoare annotation was computed. [2018-10-27 00:27:58,286 INFO L425 ceAbstractionStarter]: For program point L16-3(line 16) no Hoare annotation was computed. [2018-10-27 00:27:58,286 INFO L425 ceAbstractionStarter]: For program point L15-3(lines 15 19) no Hoare annotation was computed. [2018-10-27 00:27:58,286 INFO L425 ceAbstractionStarter]: For program point L15-4(lines 15 19) no Hoare annotation was computed. [2018-10-27 00:27:58,287 INFO L425 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 13 22) no Hoare annotation was computed. [2018-10-27 00:27:58,287 INFO L425 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 13 22) no Hoare annotation was computed. [2018-10-27 00:27:58,287 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-27 00:27:58,287 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-27 00:27:58,287 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-27 00:27:58,287 INFO L425 ceAbstractionStarter]: For program point L52-1(lines 52 56) no Hoare annotation was computed. [2018-10-27 00:27:58,287 INFO L421 ceAbstractionStarter]: At program point L52-3(lines 52 56) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0)) (and (exists ((__ieee754_logf_~ix~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|) (not (bvslt __ieee754_logf_~ix~1 (_ bv0 32))))) (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|))) [2018-10-27 00:27:58,287 INFO L425 ceAbstractionStarter]: For program point L69(lines 69 76) no Hoare annotation was computed. [2018-10-27 00:27:58,288 INFO L425 ceAbstractionStarter]: For program point L36-1(lines 36 40) no Hoare annotation was computed. [2018-10-27 00:27:58,288 INFO L421 ceAbstractionStarter]: At program point L36-3(lines 36 40) the Hoare annotation is: (or (= __ieee754_logf_~x |__ieee754_logf_#in~x|) (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0))) [2018-10-27 00:27:58,288 INFO L425 ceAbstractionStarter]: For program point L36-4(lines 36 40) no Hoare annotation was computed. [2018-10-27 00:27:58,288 INFO L425 ceAbstractionStarter]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2018-10-27 00:27:58,288 INFO L428 ceAbstractionStarter]: At program point __ieee754_logfENTRY(lines 32 108) the Hoare annotation is: true [2018-10-27 00:27:58,292 INFO L421 ceAbstractionStarter]: At program point L61-3(lines 61 65) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0)) (exists ((__ieee754_logf_~ix~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|) (not (bvslt __ieee754_logf_~ix~1 (_ bv0 32)))))) [2018-10-27 00:27:58,292 INFO L425 ceAbstractionStarter]: For program point __ieee754_logfFINAL(lines 32 108) no Hoare annotation was computed. [2018-10-27 00:27:58,292 INFO L425 ceAbstractionStarter]: For program point L61-4(lines 61 65) no Hoare annotation was computed. [2018-10-27 00:27:58,292 INFO L425 ceAbstractionStarter]: For program point L53(line 53) no Hoare annotation was computed. [2018-10-27 00:27:58,292 INFO L425 ceAbstractionStarter]: For program point L53-1(line 53) no Hoare annotation was computed. [2018-10-27 00:27:58,292 INFO L425 ceAbstractionStarter]: For program point L53-2(line 53) no Hoare annotation was computed. [2018-10-27 00:27:58,292 INFO L425 ceAbstractionStarter]: For program point L53-3(line 53) no Hoare annotation was computed. [2018-10-27 00:27:58,292 INFO L425 ceAbstractionStarter]: For program point L78(lines 78 83) no Hoare annotation was computed. [2018-10-27 00:27:58,293 INFO L425 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-10-27 00:27:58,293 INFO L425 ceAbstractionStarter]: For program point L103(lines 103 106) no Hoare annotation was computed. [2018-10-27 00:27:58,293 INFO L425 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2018-10-27 00:27:58,293 INFO L425 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-10-27 00:27:58,293 INFO L425 ceAbstractionStarter]: For program point L37-1(line 37) no Hoare annotation was computed. [2018-10-27 00:27:58,293 INFO L425 ceAbstractionStarter]: For program point L37-2(line 37) no Hoare annotation was computed. [2018-10-27 00:27:58,293 INFO L425 ceAbstractionStarter]: For program point L37-3(line 37) no Hoare annotation was computed. [2018-10-27 00:27:58,293 INFO L425 ceAbstractionStarter]: For program point L95(lines 95 107) no Hoare annotation was computed. [2018-10-27 00:27:58,293 INFO L425 ceAbstractionStarter]: For program point L62(line 62) no Hoare annotation was computed. [2018-10-27 00:27:58,293 INFO L425 ceAbstractionStarter]: For program point L62-1(line 62) no Hoare annotation was computed. [2018-10-27 00:27:58,293 INFO L425 ceAbstractionStarter]: For program point L62-2(line 62) no Hoare annotation was computed. [2018-10-27 00:27:58,293 INFO L425 ceAbstractionStarter]: For program point L62-3(line 62) no Hoare annotation was computed. [2018-10-27 00:27:58,293 INFO L425 ceAbstractionStarter]: For program point L54(line 54) no Hoare annotation was computed. [2018-10-27 00:27:58,293 INFO L425 ceAbstractionStarter]: For program point L38(line 38) no Hoare annotation was computed. [2018-10-27 00:27:58,294 INFO L425 ceAbstractionStarter]: For program point L63(line 63) no Hoare annotation was computed. [2018-10-27 00:27:58,294 INFO L425 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-10-27 00:27:58,294 INFO L425 ceAbstractionStarter]: For program point L55-1(line 55) no Hoare annotation was computed. [2018-10-27 00:27:58,294 INFO L425 ceAbstractionStarter]: For program point L55-2(line 55) no Hoare annotation was computed. [2018-10-27 00:27:58,294 INFO L425 ceAbstractionStarter]: For program point L47(lines 47 48) no Hoare annotation was computed. [2018-10-27 00:27:58,294 INFO L425 ceAbstractionStarter]: For program point L39(line 39) no Hoare annotation was computed. [2018-10-27 00:27:58,294 INFO L425 ceAbstractionStarter]: For program point L39-1(line 39) no Hoare annotation was computed. [2018-10-27 00:27:58,294 INFO L425 ceAbstractionStarter]: For program point L39-2(line 39) no Hoare annotation was computed. [2018-10-27 00:27:58,294 INFO L425 ceAbstractionStarter]: For program point L97(lines 97 101) no Hoare annotation was computed. [2018-10-27 00:27:58,294 INFO L425 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-10-27 00:27:58,295 INFO L425 ceAbstractionStarter]: For program point L64-1(line 64) no Hoare annotation was computed. [2018-10-27 00:27:58,295 INFO L425 ceAbstractionStarter]: For program point L64-2(line 64) no Hoare annotation was computed. [2018-10-27 00:27:58,295 INFO L425 ceAbstractionStarter]: For program point L49(lines 49 57) no Hoare annotation was computed. [2018-10-27 00:27:58,295 INFO L425 ceAbstractionStarter]: For program point L49-1(lines 49 57) no Hoare annotation was computed. [2018-10-27 00:27:58,295 INFO L425 ceAbstractionStarter]: For program point __ieee754_logfEXIT(lines 32 108) no Hoare annotation was computed. [2018-10-27 00:27:58,295 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 44) no Hoare annotation was computed. [2018-10-27 00:27:58,295 INFO L425 ceAbstractionStarter]: For program point L68(lines 68 84) no Hoare annotation was computed. [2018-10-27 00:27:58,295 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-27 00:27:58,295 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0) [2018-10-27 00:27:58,296 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-27 00:27:58,296 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-27 00:27:58,296 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 125) no Hoare annotation was computed. [2018-10-27 00:27:58,296 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 113 130) the Hoare annotation is: true [2018-10-27 00:27:58,296 INFO L425 ceAbstractionStarter]: For program point L125(line 125) no Hoare annotation was computed. [2018-10-27 00:27:58,301 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 113 130) no Hoare annotation was computed. [2018-10-27 00:27:58,302 INFO L421 ceAbstractionStarter]: At program point L124(line 124) the Hoare annotation is: (let ((.cse1 ((_ to_fp 8 24) RNE (_ +zero 11 53)))) (or (let ((.cse0 (fp.div RNE (fp.neg ((_ to_fp 8 24) RNE 1.0)) (_ +zero 8 24)))) (and (= .cse0 main_~x~0) (= main_~res~0 (fp.div RNE (fp.sub RNE .cse0 .cse0) .cse1)))) (not (= .cse1 ~zero_log~0)))) [2018-10-27 00:27:58,302 INFO L425 ceAbstractionStarter]: For program point L124-1(lines 124 127) no Hoare annotation was computed. [2018-10-27 00:27:58,302 INFO L421 ceAbstractionStarter]: At program point L121(line 121) the Hoare annotation is: (or (= (fp.div RNE (fp.neg ((_ to_fp 8 24) RNE 1.0)) (_ +zero 8 24)) main_~x~0) (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0))) [2018-10-27 00:27:58,302 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 113 130) no Hoare annotation was computed. [2018-10-27 00:27:58,302 INFO L425 ceAbstractionStarter]: For program point L121-1(line 121) no Hoare annotation was computed. [2018-10-27 00:27:58,309 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:27:58,310 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:27:58,310 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:27:58,310 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:27:58,310 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:27:58,313 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:27:58,314 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:27:58,314 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:27:58,314 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:27:58,314 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:27:58,315 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:27:58,316 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:27:58,316 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:27:58,316 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:27:58,316 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:27:58,317 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:27:58,317 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:27:58,317 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:27:58,318 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:27:58,318 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:27:58,318 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:27:58,318 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:27:58,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:27:58 BoogieIcfgContainer [2018-10-27 00:27:58,320 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 00:27:58,320 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 00:27:58,321 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 00:27:58,321 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 00:27:58,321 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:27:30" (3/4) ... [2018-10-27 00:27:58,324 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 00:27:58,330 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-10-27 00:27:58,330 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-27 00:27:58,330 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-10-27 00:27:58,331 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_logf [2018-10-27 00:27:58,331 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-27 00:27:58,336 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2018-10-27 00:27:58,338 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-10-27 00:27:58,338 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-27 00:27:58,338 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-10-27 00:27:58,361 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero_log) [2018-10-27 00:27:58,361 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero_log) || ((\exists __ieee754_logf_~ix~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == \old(x)) [2018-10-27 00:27:58,362 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero_log) || (\exists __ieee754_logf_~ix~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) [2018-10-27 00:27:58,387 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b5176838-0d3d-4414-85e1-7acabd6161ba/bin-2019/uautomizer/witness.graphml [2018-10-27 00:27:58,387 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 00:27:58,388 INFO L168 Benchmark]: Toolchain (without parser) took 39994.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 204.5 MB). Free memory was 953.2 MB in the beginning and 953.5 MB in the end (delta: -283.5 kB). Peak memory consumption was 204.2 MB. Max. memory is 11.5 GB. [2018-10-27 00:27:58,389 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. [2018-10-27 00:27:58,389 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.59 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 935.7 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2018-10-27 00:27:58,389 INFO L168 Benchmark]: Boogie Preprocessor took 47.22 ms. Allocated memory is still 1.0 GB. Free memory was 935.7 MB in the beginning and 930.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-27 00:27:58,389 INFO L168 Benchmark]: RCFGBuilder took 11765.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 204.5 MB). Free memory was 930.4 MB in the beginning and 1.2 GB in the end (delta: -237.9 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-10-27 00:27:58,390 INFO L168 Benchmark]: TraceAbstraction took 27821.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 953.5 MB in the end (delta: 214.8 MB). Peak memory consumption was 214.8 MB. Max. memory is 11.5 GB. [2018-10-27 00:27:58,390 INFO L168 Benchmark]: Witness Printer took 66.79 ms. Allocated memory is still 1.2 GB. Free memory is still 953.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:27:58,392 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 290.59 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 935.7 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 47.22 ms. Allocated memory is still 1.0 GB. Free memory was 935.7 MB in the beginning and 930.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 11765.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 204.5 MB). Free memory was 930.4 MB in the beginning and 1.2 GB in the end (delta: -237.9 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 27821.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 953.5 MB in the end (delta: 214.8 MB). Peak memory consumption was 214.8 MB. Max. memory is 11.5 GB. * Witness Printer took 66.79 ms. Allocated memory is still 1.2 GB. Free memory is still 953.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 125]: 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: 61]: Loop Invariant [2018-10-27 00:27:58,395 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:27:58,395 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:27:58,395 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:27:58,396 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:27:58,396 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:27:58,396 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:27:58,396 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:27:58,396 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:27:58,397 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:27:58,397 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] Derived loop invariant: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero_log) || (\exists __ieee754_logf_~ix~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) - InvariantResult [Line: 36]: Loop Invariant [2018-10-27 00:27:58,397 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:27:58,397 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE Derived loop invariant: x == \old(x) || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero_log) - InvariantResult [Line: 52]: Loop Invariant [2018-10-27 00:27:58,398 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:27:58,398 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:27:58,398 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:27:58,398 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:27:58,398 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:27:58,399 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-27 00:27:58,399 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:27:58,399 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:27:58,399 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-10-27 00:27:58,399 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] Derived loop invariant: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero_log) || ((\exists __ieee754_logf_~ix~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == \old(x)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 80 locations, 1 error locations. SAFE Result, 27.7s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 23.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 246 SDtfs, 182 SDslu, 908 SDs, 0 SdLazy, 266 SolverSat, 16 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 21.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 125 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 14 PreInvPairs, 19 NumberOfFragments, 130 HoareAnnotationTreeSize, 14 FomulaSimplifications, 45 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 61 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 106 ConstructedInterpolants, 5 QuantifiedInterpolants, 18044 SizeOfPredicates, 19 NumberOfNonLiveVariables, 364 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...