./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 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e367103b-b139-4ce0-8c05-20cf779b8632/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e367103b-b139-4ce0-8c05-20cf779b8632/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e367103b-b139-4ce0-8c05-20cf779b8632/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e367103b-b139-4ce0-8c05-20cf779b8632/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0920b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e367103b-b139-4ce0-8c05-20cf779b8632/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e367103b-b139-4ce0-8c05-20cf779b8632/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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_e367103b-b139-4ce0-8c05-20cf779b8632/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e367103b-b139-4ce0-8c05-20cf779b8632/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e367103b-b139-4ce0-8c05-20cf779b8632/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e367103b-b139-4ce0-8c05-20cf779b8632/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0920b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e367103b-b139-4ce0-8c05-20cf779b8632/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e367103b-b139-4ce0-8c05-20cf779b8632/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash df7585bdb7f55dd146660d2fca5142563fdf3df8 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 11:52:50,789 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:52:50,790 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:52:50,797 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:52:50,797 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:52:50,797 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:52:50,798 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:52:50,799 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:52:50,801 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:52:50,801 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:52:50,802 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:52:50,802 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:52:50,803 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:52:50,803 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:52:50,804 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:52:50,804 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:52:50,804 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:52:50,805 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:52:50,807 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:52:50,807 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:52:50,808 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:52:50,808 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:52:50,809 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:52:50,810 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:52:50,810 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:52:50,810 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:52:50,811 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:52:50,811 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:52:50,812 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:52:50,812 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:52:50,813 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:52:50,813 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:52:50,813 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:52:50,813 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:52:50,814 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:52:50,814 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:52:50,815 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e367103b-b139-4ce0-8c05-20cf779b8632/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 11:52:50,822 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:52:50,822 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:52:50,822 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 11:52:50,823 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 11:52:50,823 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 11:52:50,823 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 11:52:50,823 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 11:52:50,823 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 11:52:50,823 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 11:52:50,823 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 11:52:50,823 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 11:52:50,824 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 11:52:50,824 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 11:52:50,824 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:52:50,824 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:52:50,824 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:52:50,825 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:52:50,825 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:52:50,825 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 11:52:50,825 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:52:50,825 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 11:52:50,825 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:52:50,825 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:52:50,826 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:52:50,826 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 11:52:50,826 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:52:50,826 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:52:50,826 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:52:50,826 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 11:52:50,826 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:52:50,827 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:52:50,827 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:52:50,827 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 11:52:50,827 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 11:52:50,827 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:52:50,827 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 11:52:50,827 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 11:52:50,827 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_e367103b-b139-4ce0-8c05-20cf779b8632/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df7585bdb7f55dd146660d2fca5142563fdf3df8 [2018-11-18 11:52:50,855 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:52:50,864 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:52:50,866 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:52:50,867 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:52:50,868 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:52:50,868 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e367103b-b139-4ce0-8c05-20cf779b8632/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0920b_true-unreach-call.c [2018-11-18 11:52:50,912 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e367103b-b139-4ce0-8c05-20cf779b8632/bin-2019/utaipan/data/64ffb3b0f/4ae7c485ee924ce4b7d1894f64dd41d4/FLAG6152b2652 [2018-11-18 11:52:51,320 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:52:51,321 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e367103b-b139-4ce0-8c05-20cf779b8632/sv-benchmarks/c/float-newlib/float_req_bl_0920b_true-unreach-call.c [2018-11-18 11:52:51,327 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e367103b-b139-4ce0-8c05-20cf779b8632/bin-2019/utaipan/data/64ffb3b0f/4ae7c485ee924ce4b7d1894f64dd41d4/FLAG6152b2652 [2018-11-18 11:52:51,338 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e367103b-b139-4ce0-8c05-20cf779b8632/bin-2019/utaipan/data/64ffb3b0f/4ae7c485ee924ce4b7d1894f64dd41d4 [2018-11-18 11:52:51,340 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:52:51,341 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:52:51,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:52:51,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:52:51,344 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:52:51,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:52:51" (1/1) ... [2018-11-18 11:52:51,346 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63274aa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:52:51, skipping insertion in model container [2018-11-18 11:52:51,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:52:51" (1/1) ... [2018-11-18 11:52:51,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:52:51,369 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:52:51,503 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:52:51,506 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:52:51,528 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:52:51,541 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:52:51,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:52:51 WrapperNode [2018-11-18 11:52:51,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:52:51,542 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:52:51,542 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:52:51,542 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:52:51,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:52:51" (1/1) ... [2018-11-18 11:52:51,592 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:52:51" (1/1) ... [2018-11-18 11:52:51,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:52:51,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:52:51,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:52:51,597 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:52:51,603 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:52:51" (1/1) ... [2018-11-18 11:52:51,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:52:51" (1/1) ... [2018-11-18 11:52:51,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:52:51" (1/1) ... [2018-11-18 11:52:51,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:52:51" (1/1) ... [2018-11-18 11:52:51,611 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:52:51" (1/1) ... [2018-11-18 11:52:51,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:52:51" (1/1) ... [2018-11-18 11:52:51,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:52:51" (1/1) ... [2018-11-18 11:52:51,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:52:51,619 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:52:51,619 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:52:51,619 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:52:51,620 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:52:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e367103b-b139-4ce0-8c05-20cf779b8632/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:52:51,651 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 11:52:51,652 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 11:52:51,652 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 11:52:51,652 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 11:52:51,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 11:52:51,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 11:52:51,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 11:52:51,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 11:52:51,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 11:52:51,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 11:52:51,653 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-11-18 11:52:51,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-11-18 11:52:51,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:52:51,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:52:51,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 11:52:51,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 11:52:51,837 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:52:51,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:52:51 BoogieIcfgContainer [2018-11-18 11:52:51,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:52:51,838 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 11:52:51,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 11:52:51,840 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 11:52:51,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:52:51" (1/3) ... [2018-11-18 11:52:51,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a96fe5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:52:51, skipping insertion in model container [2018-11-18 11:52:51,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:52:51" (2/3) ... [2018-11-18 11:52:51,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a96fe5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:52:51, skipping insertion in model container [2018-11-18 11:52:51,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:52:51" (3/3) ... [2018-11-18 11:52:51,843 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920b_true-unreach-call.c [2018-11-18 11:52:51,851 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 11:52:51,857 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 11:52:51,870 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 11:52:51,896 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 11:52:51,896 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 11:52:51,896 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 11:52:51,896 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:52:51,896 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:52:51,896 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 11:52:51,896 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:52:51,896 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 11:52:51,907 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-11-18 11:52:51,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 11:52:51,910 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:52:51,911 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:52:51,912 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:52:51,915 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:52:51,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1808585883, now seen corresponding path program 1 times [2018-11-18 11:52:51,917 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:52:51,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:52:51,952 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:52:51,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:52:51,953 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:52:51,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:52:52,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:52:52,026 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:52:52,027 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:52:52,027 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:52:52,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 11:52:52,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 11:52:52,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:52:52,041 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-11-18 11:52:52,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:52:52,055 INFO L93 Difference]: Finished difference Result 78 states and 112 transitions. [2018-11-18 11:52:52,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 11:52:52,056 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-18 11:52:52,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:52:52,063 INFO L225 Difference]: With dead ends: 78 [2018-11-18 11:52:52,063 INFO L226 Difference]: Without dead ends: 39 [2018-11-18 11:52:52,066 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:52:52,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-18 11:52:52,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-11-18 11:52:52,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-18 11:52:52,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2018-11-18 11:52:52,093 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 21 [2018-11-18 11:52:52,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:52:52,093 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2018-11-18 11:52:52,093 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 11:52:52,093 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2018-11-18 11:52:52,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 11:52:52,094 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:52:52,094 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:52:52,095 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:52:52,095 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:52:52,095 INFO L82 PathProgramCache]: Analyzing trace with hash 941490085, now seen corresponding path program 1 times [2018-11-18 11:52:52,095 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:52:52,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:52:52,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:52:52,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:52:52,096 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:52:52,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:52:52,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:52:52,152 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 11:52:52,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:52:52 BoogieIcfgContainer [2018-11-18 11:52:52,176 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 11:52:52,177 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:52:52,177 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:52:52,177 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:52:52,177 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:52:51" (3/4) ... [2018-11-18 11:52:52,179 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 11:52:52,179 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:52:52,180 INFO L168 Benchmark]: Toolchain (without parser) took 839.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 958.2 MB in the beginning and 1.1 GB in the end (delta: -108.4 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2018-11-18 11:52:52,181 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:52:52,181 INFO L168 Benchmark]: CACSL2BoogieTranslator took 200.21 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 944.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 11:52:52,181 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -179.1 MB). Peak memory consumption was 16.9 MB. Max. memory is 11.5 GB. [2018-11-18 11:52:52,182 INFO L168 Benchmark]: Boogie Preprocessor took 21.92 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:52:52,182 INFO L168 Benchmark]: RCFGBuilder took 219.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:52:52,182 INFO L168 Benchmark]: TraceAbstraction took 337.97 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: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. [2018-11-18 11:52:52,183 INFO L168 Benchmark]: Witness Printer took 2.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:52:52,185 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 200.21 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 944.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -179.1 MB). Peak memory consumption was 16.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.92 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 219.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 337.97 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: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. * Witness Printer took 2.80 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)=6442450954, \old(two25_log)=6442450957, \old(zero_log)=6442450956, 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)=6442450952, 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)=6442450952, 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=6442450952, zero_log=0] [L37] FCALL ieee_float_shape_type gf_u; [L38] FCALL gf_u.value = (x) [L39] EXPR, FCALL gf_u.word [L39] (ix) = gf_u.word [L40] COND FALSE !(0) VAL [\old(x)=6442450952, 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=6442450952, zero_log=0] [L42] k = 0 VAL [\old(x)=6442450952, 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=6442450952, zero_log=0] [L43] COND TRUE ((ix & 0x7fffffff) == 0) [L44] RET return -two25_log / zero_log; VAL [\old(x)=6442450952, 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=6442450952, 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=6442450952, 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=6442450952, 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=6442450952, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 53 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=43occurred 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, 43 NumberOfCodeBlocks, 43 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 0.1.23-5842f4b [2018-11-18 11:52:53,594 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:52:53,595 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:52:53,604 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:52:53,604 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:52:53,605 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:52:53,606 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:52:53,607 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:52:53,608 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:52:53,609 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:52:53,609 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:52:53,610 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:52:53,610 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:52:53,611 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:52:53,612 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:52:53,612 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:52:53,613 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:52:53,615 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:52:53,617 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:52:53,618 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:52:53,618 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:52:53,619 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:52:53,621 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:52:53,621 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:52:53,621 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:52:53,622 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:52:53,622 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:52:53,623 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:52:53,624 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:52:53,624 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:52:53,624 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:52:53,625 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:52:53,625 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:52:53,625 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:52:53,626 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:52:53,626 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:52:53,627 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e367103b-b139-4ce0-8c05-20cf779b8632/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 11:52:53,637 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:52:53,637 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:52:53,637 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 11:52:53,638 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 11:52:53,638 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 11:52:53,638 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 11:52:53,638 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 11:52:53,638 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 11:52:53,638 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 11:52:53,639 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 11:52:53,639 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:52:53,639 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:52:53,639 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:52:53,639 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:52:53,640 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 11:52:53,640 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:52:53,640 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 11:52:53,640 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 11:52:53,640 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 11:52:53,640 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:52:53,640 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:52:53,641 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:52:53,641 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 11:52:53,641 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:52:53,641 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:52:53,641 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:52:53,641 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 11:52:53,641 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:52:53,642 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:52:53,642 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:52:53,642 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 11:52:53,642 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 11:52:53,642 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:52:53,642 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 11:52:53,643 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 11:52:53,643 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_e367103b-b139-4ce0-8c05-20cf779b8632/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df7585bdb7f55dd146660d2fca5142563fdf3df8 [2018-11-18 11:52:53,672 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:52:53,681 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:52:53,683 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:52:53,684 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:52:53,685 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:52:53,685 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e367103b-b139-4ce0-8c05-20cf779b8632/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0920b_true-unreach-call.c [2018-11-18 11:52:53,728 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e367103b-b139-4ce0-8c05-20cf779b8632/bin-2019/utaipan/data/8153cca32/230b2de6cbe644d29b11d57281e7fd7d/FLAG8ef9cf912 [2018-11-18 11:52:54,122 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:52:54,122 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e367103b-b139-4ce0-8c05-20cf779b8632/sv-benchmarks/c/float-newlib/float_req_bl_0920b_true-unreach-call.c [2018-11-18 11:52:54,126 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e367103b-b139-4ce0-8c05-20cf779b8632/bin-2019/utaipan/data/8153cca32/230b2de6cbe644d29b11d57281e7fd7d/FLAG8ef9cf912 [2018-11-18 11:52:54,135 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e367103b-b139-4ce0-8c05-20cf779b8632/bin-2019/utaipan/data/8153cca32/230b2de6cbe644d29b11d57281e7fd7d [2018-11-18 11:52:54,136 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:52:54,137 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:52:54,138 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:52:54,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:52:54,140 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:52:54,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:52:54" (1/1) ... [2018-11-18 11:52:54,142 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c1c7639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:52:54, skipping insertion in model container [2018-11-18 11:52:54,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:52:54" (1/1) ... [2018-11-18 11:52:54,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:52:54,168 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:52:54,319 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:52:54,324 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:52:54,358 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:52:54,377 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:52:54,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:52:54 WrapperNode [2018-11-18 11:52:54,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:52:54,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:52:54,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:52:54,378 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:52:54,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:52:54" (1/1) ... [2018-11-18 11:52:54,391 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:52:54" (1/1) ... [2018-11-18 11:52:54,397 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:52:54,398 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:52:54,398 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:52:54,398 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:52:54,460 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:52:54" (1/1) ... [2018-11-18 11:52:54,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:52:54" (1/1) ... [2018-11-18 11:52:54,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:52:54" (1/1) ... [2018-11-18 11:52:54,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:52:54" (1/1) ... [2018-11-18 11:52:54,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:52:54" (1/1) ... [2018-11-18 11:52:54,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:52:54" (1/1) ... [2018-11-18 11:52:54,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:52:54" (1/1) ... [2018-11-18 11:52:54,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:52:54,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:52:54,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:52:54,485 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:52:54,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:52:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e367103b-b139-4ce0-8c05-20cf779b8632/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:52:54,519 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 11:52:54,519 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 11:52:54,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 11:52:54,519 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 11:52:54,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 11:52:54,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 11:52:54,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 11:52:54,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 11:52:54,523 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-11-18 11:52:54,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-11-18 11:52:54,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 11:52:54,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:52:54,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:52:54,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 11:52:54,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 11:52:54,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 11:52:54,736 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 11:53:05,500 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:53:05,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:53:05 BoogieIcfgContainer [2018-11-18 11:53:05,501 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:53:05,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 11:53:05,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 11:53:05,503 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 11:53:05,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:52:54" (1/3) ... [2018-11-18 11:53:05,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45867e78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:53:05, skipping insertion in model container [2018-11-18 11:53:05,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:52:54" (2/3) ... [2018-11-18 11:53:05,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45867e78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:53:05, skipping insertion in model container [2018-11-18 11:53:05,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:53:05" (3/3) ... [2018-11-18 11:53:05,505 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920b_true-unreach-call.c [2018-11-18 11:53:05,511 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 11:53:05,515 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 11:53:05,524 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 11:53:05,541 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 11:53:05,541 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 11:53:05,541 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 11:53:05,541 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 11:53:05,541 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:53:05,542 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:53:05,542 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 11:53:05,542 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:53:05,542 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 11:53:05,552 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-11-18 11:53:05,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 11:53:05,556 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:53:05,556 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] [2018-11-18 11:53:05,558 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:53:05,561 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:53:05,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1982603429, now seen corresponding path program 1 times [2018-11-18 11:53:05,564 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 11:53:05,564 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e367103b-b139-4ce0-8c05-20cf779b8632/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-18 11:53:05,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:53:05,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:53:05,767 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:53:05,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:53:05,783 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:53:05,799 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:53:05,799 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:53:05,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 11:53:05,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 11:53:05,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:53:05,810 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-11-18 11:53:05,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:53:05,823 INFO L93 Difference]: Finished difference Result 76 states and 110 transitions. [2018-11-18 11:53:05,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 11:53:05,825 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-11-18 11:53:05,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:53:05,832 INFO L225 Difference]: With dead ends: 76 [2018-11-18 11:53:05,832 INFO L226 Difference]: Without dead ends: 38 [2018-11-18 11:53:05,834 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:53:05,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-18 11:53:05,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-11-18 11:53:05,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-18 11:53:05,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 48 transitions. [2018-11-18 11:53:05,859 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 48 transitions. Word has length 20 [2018-11-18 11:53:05,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:53:05,860 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 48 transitions. [2018-11-18 11:53:05,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 11:53:05,860 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 48 transitions. [2018-11-18 11:53:05,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 11:53:05,860 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:53:05,860 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:53:05,861 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:53:05,861 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:53:05,861 INFO L82 PathProgramCache]: Analyzing trace with hash -75431839, now seen corresponding path program 1 times [2018-11-18 11:53:05,861 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 11:53:05,861 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e367103b-b139-4ce0-8c05-20cf779b8632/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-18 11:53:05,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:53:06,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:53:06,080 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:53:06,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:53:06,143 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:53:06,153 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:53:06,153 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 11:53:06,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 11:53:06,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 11:53:06,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 11:53:06,155 INFO L87 Difference]: Start difference. First operand 38 states and 48 transitions. Second operand 6 states. [2018-11-18 11:53:09,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:53:09,753 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2018-11-18 11:53:09,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 11:53:09,754 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-11-18 11:53:09,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:53:09,756 INFO L225 Difference]: With dead ends: 52 [2018-11-18 11:53:09,756 INFO L226 Difference]: Without dead ends: 42 [2018-11-18 11:53:09,757 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 11:53:09,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-18 11:53:09,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2018-11-18 11:53:09,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-18 11:53:09,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2018-11-18 11:53:09,763 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 47 transitions. Word has length 21 [2018-11-18 11:53:09,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:53:09,763 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 47 transitions. [2018-11-18 11:53:09,763 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 11:53:09,764 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2018-11-18 11:53:09,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 11:53:09,764 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:53:09,764 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:53:09,764 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:53:09,765 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:53:09,765 INFO L82 PathProgramCache]: Analyzing trace with hash -406668313, now seen corresponding path program 1 times [2018-11-18 11:53:09,765 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 11:53:09,765 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e367103b-b139-4ce0-8c05-20cf779b8632/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-18 11:53:09,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:53:09,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:53:09,970 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:53:11,610 WARN L180 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-11-18 11:53:11,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:53:11,746 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:53:11,758 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:53:11,758 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 11:53:11,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 11:53:11,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 11:53:11,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-11-18 11:53:11,759 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. Second operand 10 states. [2018-11-18 11:53:13,543 WARN L180 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-18 11:53:28,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:53:28,194 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2018-11-18 11:53:28,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 11:53:28,194 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-11-18 11:53:28,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:53:28,195 INFO L225 Difference]: With dead ends: 49 [2018-11-18 11:53:28,195 INFO L226 Difference]: Without dead ends: 42 [2018-11-18 11:53:28,196 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-11-18 11:53:28,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-18 11:53:28,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2018-11-18 11:53:28,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-18 11:53:28,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2018-11-18 11:53:28,203 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 22 [2018-11-18 11:53:28,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:53:28,204 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2018-11-18 11:53:28,204 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 11:53:28,204 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2018-11-18 11:53:28,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 11:53:28,204 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:53:28,204 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:53:28,204 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:53:28,205 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:53:28,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1423848861, now seen corresponding path program 1 times [2018-11-18 11:53:28,205 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 11:53:28,205 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e367103b-b139-4ce0-8c05-20cf779b8632/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-18 11:53:28,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:53:28,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:53:28,258 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:53:28,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:53:28,302 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:53:28,314 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:53:28,314 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 11:53:28,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 11:53:28,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 11:53:28,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 11:53:28,315 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand 6 states. [2018-11-18 11:53:31,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:53:31,035 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2018-11-18 11:53:31,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 11:53:31,036 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-11-18 11:53:31,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:53:31,036 INFO L225 Difference]: With dead ends: 42 [2018-11-18 11:53:31,036 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 11:53:31,037 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-18 11:53:31,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 11:53:31,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 11:53:31,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 11:53:31,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 11:53:31,038 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2018-11-18 11:53:31,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:53:31,038 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:53:31,038 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 11:53:31,038 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 11:53:31,038 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 11:53:31,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 11:53:31,227 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 111) no Hoare annotation was computed. [2018-11-18 11:53:31,228 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 111) the Hoare annotation is: true [2018-11-18 11:53:31,228 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 111) no Hoare annotation was computed. [2018-11-18 11:53:31,228 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 11:53:31,228 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 11:53:31,228 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 11:53:31,228 INFO L425 ceAbstractionStarter]: For program point L97(lines 97 101) no Hoare annotation was computed. [2018-11-18 11:53:31,228 INFO L425 ceAbstractionStarter]: For program point L52-1(lines 52 56) no Hoare annotation was computed. [2018-11-18 11:53:31,228 INFO L421 ceAbstractionStarter]: At program point L52-3(lines 52 56) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +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|))) [2018-11-18 11:53:31,228 INFO L425 ceAbstractionStarter]: For program point L69(lines 69 76) no Hoare annotation was computed. [2018-11-18 11:53:31,228 INFO L425 ceAbstractionStarter]: For program point L36-1(lines 36 40) no Hoare annotation was computed. [2018-11-18 11:53:31,228 INFO L421 ceAbstractionStarter]: At program point L36-3(lines 36 40) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (= __ieee754_logf_~x |__ieee754_logf_#in~x|)) [2018-11-18 11:53:31,229 INFO L425 ceAbstractionStarter]: For program point L36-4(lines 36 40) no Hoare annotation was computed. [2018-11-18 11:53:31,229 INFO L425 ceAbstractionStarter]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2018-11-18 11:53:31,229 INFO L428 ceAbstractionStarter]: At program point __ieee754_logfENTRY(lines 32 108) the Hoare annotation is: true [2018-11-18 11:53:31,229 INFO L421 ceAbstractionStarter]: At program point L61-3(lines 61 65) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +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)))))) [2018-11-18 11:53:31,229 INFO L425 ceAbstractionStarter]: For program point __ieee754_logfFINAL(lines 32 108) no Hoare annotation was computed. [2018-11-18 11:53:31,229 INFO L425 ceAbstractionStarter]: For program point L61-4(lines 61 65) no Hoare annotation was computed. [2018-11-18 11:53:31,229 INFO L425 ceAbstractionStarter]: For program point L49(lines 49 57) no Hoare annotation was computed. [2018-11-18 11:53:31,229 INFO L425 ceAbstractionStarter]: For program point L49-1(lines 49 57) no Hoare annotation was computed. [2018-11-18 11:53:31,229 INFO L425 ceAbstractionStarter]: For program point L78(lines 78 83) no Hoare annotation was computed. [2018-11-18 11:53:31,229 INFO L425 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-11-18 11:53:31,229 INFO L425 ceAbstractionStarter]: For program point L103(lines 103 106) no Hoare annotation was computed. [2018-11-18 11:53:31,229 INFO L425 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2018-11-18 11:53:31,229 INFO L425 ceAbstractionStarter]: For program point L95(lines 95 107) no Hoare annotation was computed. [2018-11-18 11:53:31,229 INFO L425 ceAbstractionStarter]: For program point __ieee754_logfEXIT(lines 32 108) no Hoare annotation was computed. [2018-11-18 11:53:31,230 INFO L425 ceAbstractionStarter]: For program point L47(lines 47 48) no Hoare annotation was computed. [2018-11-18 11:53:31,230 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 44) no Hoare annotation was computed. [2018-11-18 11:53:31,230 INFO L425 ceAbstractionStarter]: For program point L68(lines 68 84) no Hoare annotation was computed. [2018-11-18 11:53:31,230 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 11:53:31,230 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ~zero_log~0 ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) [2018-11-18 11:53:31,230 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 11:53:31,230 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 11:53:31,230 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 113 130) the Hoare annotation is: true [2018-11-18 11:53:31,230 INFO L425 ceAbstractionStarter]: For program point L125(line 125) no Hoare annotation was computed. [2018-11-18 11:53:31,230 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 113 130) no Hoare annotation was computed. [2018-11-18 11:53:31,230 INFO L421 ceAbstractionStarter]: At program point L124(line 124) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)))) (or (not (= .cse0 ~zero_log~0)) (let ((.cse1 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (and (= main_~res~0 (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse1 .cse1) .cse0)) (= main_~x~0 .cse1))))) [2018-11-18 11:53:31,230 INFO L425 ceAbstractionStarter]: For program point L124-1(lines 124 127) no Hoare annotation was computed. [2018-11-18 11:53:31,230 INFO L421 ceAbstractionStarter]: At program point L121(line 121) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (= main_~x~0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) [2018-11-18 11:53:31,231 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 113 130) no Hoare annotation was computed. [2018-11-18 11:53:31,231 INFO L425 ceAbstractionStarter]: For program point L121-1(line 121) no Hoare annotation was computed. [2018-11-18 11:53:31,231 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 125) no Hoare annotation was computed. [2018-11-18 11:53:31,236 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 11:53:31,236 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 11:53:31,236 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 11:53:31,237 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 11:53:31,237 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 11:53:31,239 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 11:53:31,239 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 11:53:31,239 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 11:53:31,239 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 11:53:31,239 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 11:53:31,240 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 11:53:31,240 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 11:53:31,241 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 11:53:31,241 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 11:53:31,241 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 11:53:31,241 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 11:53:31,241 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 11:53:31,242 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 11:53:31,242 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 11:53:31,242 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 11:53:31,242 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 11:53:31,242 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 11:53:31,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:53:31 BoogieIcfgContainer [2018-11-18 11:53:31,244 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 11:53:31,244 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:53:31,245 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:53:31,245 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:53:31,245 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:53:05" (3/4) ... [2018-11-18 11:53:31,247 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 11:53:31,251 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-18 11:53:31,251 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 11:53:31,251 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_logf [2018-11-18 11:53:31,252 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 11:53:31,256 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2018-11-18 11:53:31,257 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-11-18 11:53:31,257 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 11:53:31,257 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 11:53:31,275 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || x == \old(x) [2018-11-18 11:53:31,275 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~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)) [2018-11-18 11:53:31,275 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~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)) [2018-11-18 11:53:31,297 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e367103b-b139-4ce0-8c05-20cf779b8632/bin-2019/utaipan/witness.graphml [2018-11-18 11:53:31,297 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:53:31,298 INFO L168 Benchmark]: Toolchain (without parser) took 37161.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 949.2 MB in the beginning and 922.8 MB in the end (delta: 26.4 MB). Peak memory consumption was 161.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:53:31,299 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:53:31,299 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.50 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 11:53:31,299 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.07 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:53:31,299 INFO L168 Benchmark]: Boogie Preprocessor took 86.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -189.9 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2018-11-18 11:53:31,300 INFO L168 Benchmark]: RCFGBuilder took 11016.68 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:53:31,300 INFO L168 Benchmark]: TraceAbstraction took 25742.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 929.5 MB in the end (delta: 161.8 MB). Peak memory consumption was 161.8 MB. Max. memory is 11.5 GB. [2018-11-18 11:53:31,300 INFO L168 Benchmark]: Witness Printer took 52.72 ms. Allocated memory is still 1.2 GB. Free memory was 929.5 MB in the beginning and 922.8 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-18 11:53:31,302 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 239.50 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.07 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 86.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -189.9 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 11016.68 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 25742.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 929.5 MB in the end (delta: 161.8 MB). Peak memory consumption was 161.8 MB. Max. memory is 11.5 GB. * Witness Printer took 52.72 ms. Allocated memory is still 1.2 GB. Free memory was 929.5 MB in the beginning and 922.8 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 ~roundNearestTiesToEven - 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 ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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 ~roundNearestTiesToEven - 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 [2018-11-18 11:53:31,306 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 11:53:31,306 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 11:53:31,306 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 11:53:31,306 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 11:53:31,306 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 11:53:31,307 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 11:53:31,307 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 11:53:31,307 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 11:53:31,307 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 11:53:31,307 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~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 [2018-11-18 11:53:31,307 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 11:53:31,308 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || x == \old(x) - InvariantResult [Line: 52]: Loop Invariant [2018-11-18 11:53:31,308 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 11:53:31,308 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 11:53:31,308 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 11:53:31,308 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 11:53:31,309 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 11:53:31,309 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 11:53:31,309 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 11:53:31,309 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 11:53:31,309 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-11-18 11:53:31,309 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~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 5 procedures, 42 locations, 1 error locations. SAFE Result, 25.6s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 22.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 156 SDtfs, 110 SDslu, 428 SDs, 0 SdLazy, 177 SolverSat, 12 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 21.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 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, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 82 ConstructedInterpolants, 5 QuantifiedInterpolants, 8636 SizeOfPredicates, 11 NumberOfNonLiveVariables, 340 ConjunctsInSsa, 23 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...