./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e303b753-eb05-47c9-b3cb-feeb8172a0de/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e303b753-eb05-47c9-b3cb-feeb8172a0de/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e303b753-eb05-47c9-b3cb-feeb8172a0de/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e303b753-eb05-47c9-b3cb-feeb8172a0de/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e303b753-eb05-47c9-b3cb-feeb8172a0de/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e303b753-eb05-47c9-b3cb-feeb8172a0de/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 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 .................................................................................................................................................................................................................................................................................................................... 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_e303b753-eb05-47c9-b3cb-feeb8172a0de/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e303b753-eb05-47c9-b3cb-feeb8172a0de/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e303b753-eb05-47c9-b3cb-feeb8172a0de/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e303b753-eb05-47c9-b3cb-feeb8172a0de/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e303b753-eb05-47c9-b3cb-feeb8172a0de/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e303b753-eb05-47c9-b3cb-feeb8172a0de/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 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 ............................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 08:16:26,116 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 08:16:26,117 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 08:16:26,123 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 08:16:26,123 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 08:16:26,124 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 08:16:26,124 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 08:16:26,125 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 08:16:26,126 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 08:16:26,126 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 08:16:26,127 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 08:16:26,127 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 08:16:26,127 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 08:16:26,128 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 08:16:26,128 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 08:16:26,129 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 08:16:26,129 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 08:16:26,130 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 08:16:26,131 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 08:16:26,132 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 08:16:26,132 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 08:16:26,133 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 08:16:26,134 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 08:16:26,134 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 08:16:26,134 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 08:16:26,135 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 08:16:26,135 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 08:16:26,136 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 08:16:26,136 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 08:16:26,137 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 08:16:26,137 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 08:16:26,137 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 08:16:26,137 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 08:16:26,137 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 08:16:26,138 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 08:16:26,138 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 08:16:26,139 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e303b753-eb05-47c9-b3cb-feeb8172a0de/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 08:16:26,146 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 08:16:26,146 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 08:16:26,147 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 08:16:26,147 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 08:16:26,147 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 08:16:26,147 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 08:16:26,147 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 08:16:26,147 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 08:16:26,147 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 08:16:26,147 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 08:16:26,147 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 08:16:26,147 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 08:16:26,147 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 08:16:26,148 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 08:16:26,148 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 08:16:26,148 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 08:16:26,148 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 08:16:26,148 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 08:16:26,148 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 08:16:26,148 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 08:16:26,148 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 08:16:26,148 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 08:16:26,149 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 08:16:26,149 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 08:16:26,149 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 08:16:26,149 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 08:16:26,149 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 08:16:26,149 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 08:16:26,149 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 08:16:26,149 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 08:16:26,149 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 08:16:26,149 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 08:16:26,149 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 08:16:26,150 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 08:16:26,150 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 08:16:26,150 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 08:16:26,150 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_e303b753-eb05-47c9-b3cb-feeb8172a0de/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 -> 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 [2018-12-02 08:16:26,167 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 08:16:26,174 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 08:16:26,175 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 08:16:26,176 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 08:16:26,176 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 08:16:26,177 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e303b753-eb05-47c9-b3cb-feeb8172a0de/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c [2018-12-02 08:16:26,210 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e303b753-eb05-47c9-b3cb-feeb8172a0de/bin-2019/utaipan/data/90534f40c/80b80b65951d4f53b01b5e4a021ba4bc/FLAG36316adf1 [2018-12-02 08:16:26,591 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 08:16:26,591 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e303b753-eb05-47c9-b3cb-feeb8172a0de/sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c [2018-12-02 08:16:26,595 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e303b753-eb05-47c9-b3cb-feeb8172a0de/bin-2019/utaipan/data/90534f40c/80b80b65951d4f53b01b5e4a021ba4bc/FLAG36316adf1 [2018-12-02 08:16:26,604 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e303b753-eb05-47c9-b3cb-feeb8172a0de/bin-2019/utaipan/data/90534f40c/80b80b65951d4f53b01b5e4a021ba4bc [2018-12-02 08:16:26,606 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 08:16:26,607 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 08:16:26,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 08:16:26,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 08:16:26,610 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 08:16:26,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:16:26" (1/1) ... [2018-12-02 08:16:26,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26c1f7bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:26, skipping insertion in model container [2018-12-02 08:16:26,612 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:16:26" (1/1) ... [2018-12-02 08:16:26,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 08:16:26,626 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 08:16:26,721 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 08:16:26,723 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 08:16:26,737 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 08:16:26,749 INFO L195 MainTranslator]: Completed translation [2018-12-02 08:16:26,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:26 WrapperNode [2018-12-02 08:16:26,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 08:16:26,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 08:16:26,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 08:16:26,750 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 08:16:26,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:26" (1/1) ... [2018-12-02 08:16:26,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:26" (1/1) ... [2018-12-02 08:16:26,792 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 08:16:26,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 08:16:26,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 08:16:26,792 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 08:16:26,798 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:26" (1/1) ... [2018-12-02 08:16:26,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:26" (1/1) ... [2018-12-02 08:16:26,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:26" (1/1) ... [2018-12-02 08:16:26,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:26" (1/1) ... [2018-12-02 08:16:26,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:26" (1/1) ... [2018-12-02 08:16:26,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:26" (1/1) ... [2018-12-02 08:16:26,809 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:26" (1/1) ... [2018-12-02 08:16:26,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 08:16:26,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 08:16:26,811 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 08:16:26,811 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 08:16:26,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e303b753-eb05-47c9-b3cb-feeb8172a0de/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 [2018-12-02 08:16:26,842 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 08:16:26,842 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 08:16:26,842 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-02 08:16:26,842 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-02 08:16:26,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-02 08:16:26,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 08:16:26,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 08:16:26,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 08:16:26,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-02 08:16:26,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 08:16:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-12-02 08:16:26,843 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-12-02 08:16:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 08:16:26,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 08:16:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 08:16:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 08:16:26,991 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 08:16:26,991 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-02 08:16:26,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:16:26 BoogieIcfgContainer [2018-12-02 08:16:26,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 08:16:26,992 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 08:16:26,992 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 08:16:26,994 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 08:16:26,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:16:26" (1/3) ... [2018-12-02 08:16:26,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@139d132d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:16:26, skipping insertion in model container [2018-12-02 08:16:26,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:26" (2/3) ... [2018-12-02 08:16:26,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@139d132d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:16:26, skipping insertion in model container [2018-12-02 08:16:26,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:16:26" (3/3) ... [2018-12-02 08:16:26,996 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1051_true-unreach-call.c [2018-12-02 08:16:27,003 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 08:16:27,007 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 08:16:27,017 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 08:16:27,038 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 08:16:27,038 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 08:16:27,038 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 08:16:27,038 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 08:16:27,038 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 08:16:27,038 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 08:16:27,038 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 08:16:27,039 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 08:16:27,049 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2018-12-02 08:16:27,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-02 08:16:27,052 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:16:27,053 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:16:27,054 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:16:27,058 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:16:27,058 INFO L82 PathProgramCache]: Analyzing trace with hash -971358766, now seen corresponding path program 1 times [2018-12-02 08:16:27,059 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 08:16:27,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:16:27,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:16:27,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:16:27,088 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 08:16:27,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:16:27,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:16:27,137 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:16:27,137 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 08:16:27,137 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 08:16:27,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 08:16:27,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 08:16:27,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 08:16:27,150 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2018-12-02 08:16:27,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:16:27,163 INFO L93 Difference]: Finished difference Result 70 states and 96 transitions. [2018-12-02 08:16:27,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 08:16:27,164 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-12-02 08:16:27,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:16:27,170 INFO L225 Difference]: With dead ends: 70 [2018-12-02 08:16:27,170 INFO L226 Difference]: Without dead ends: 35 [2018-12-02 08:16:27,172 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 08:16:27,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-12-02 08:16:27,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2018-12-02 08:16:27,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-12-02 08:16:27,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 43 transitions. [2018-12-02 08:16:27,195 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 43 transitions. Word has length 22 [2018-12-02 08:16:27,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:16:27,195 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 43 transitions. [2018-12-02 08:16:27,195 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 08:16:27,195 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2018-12-02 08:16:27,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 08:16:27,196 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:16:27,196 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:16:27,196 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:16:27,196 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:16:27,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1352261581, now seen corresponding path program 1 times [2018-12-02 08:16:27,196 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 08:16:27,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:16:27,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:16:27,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 08:16:27,197 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 08:16:27,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 08:16:27,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 08:16:27,250 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 08:16:27,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:16:27 BoogieIcfgContainer [2018-12-02 08:16:27,268 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 08:16:27,268 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 08:16:27,268 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 08:16:27,268 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 08:16:27,268 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:16:26" (3/4) ... [2018-12-02 08:16:27,271 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 08:16:27,271 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 08:16:27,271 INFO L168 Benchmark]: Toolchain (without parser) took 664.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 955.1 MB in the beginning and 1.1 GB in the end (delta: -121.3 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2018-12-02 08:16:27,272 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 08:16:27,272 INFO L168 Benchmark]: CACSL2BoogieTranslator took 142.06 ms. Allocated memory is still 1.0 GB. Free memory was 955.1 MB in the beginning and 944.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 08:16:27,273 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -186.0 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2018-12-02 08:16:27,273 INFO L168 Benchmark]: Boogie Preprocessor took 17.89 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. [2018-12-02 08:16:27,274 INFO L168 Benchmark]: RCFGBuilder took 180.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. [2018-12-02 08:16:27,274 INFO L168 Benchmark]: TraceAbstraction took 275.77 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: 32.3 MB). Peak memory consumption was 32.3 MB. Max. memory is 11.5 GB. [2018-12-02 08:16:27,274 INFO L168 Benchmark]: Witness Printer took 2.90 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. [2018-12-02 08:16:27,276 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 142.06 ms. Allocated memory is still 1.0 GB. Free memory was 955.1 MB in the beginning and 944.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -186.0 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.89 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. * RCFGBuilder took 180.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 275.77 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: 32.3 MB). Peak memory consumption was 32.3 MB. Max. memory is 11.5 GB. * Witness Printer took 2.90 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: 71]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 58, overapproximation of someBinaryArithmeticFLOAToperation at line 45, overapproximation of bitwiseAnd at line 22. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; VAL [\old(huge_floor)=6442450946, huge_floor=1000000000000000000000000000000] [L66] float x = 0.0f / 0.0f; VAL [huge_floor=1000000000000000000000000000000] [L67] CALL, EXPR floor_float(x) VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000] [L15] __int32_t i0, j0; [L16] __uint32_t i, ix; VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000, x=6442450952] [L18] ieee_float_shape_type gf_u; [L19] gf_u.value = (x) [L20] EXPR gf_u.word [L20] (i0) = gf_u.word [L22] ix = (i0 & 0x7fffffff) [L23] j0 = (ix >> 23) - 0x7f VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000, i=-36028794871480321, i0=-2147483648, j0=128, x=6442450952] [L24] COND FALSE !(j0 < 23) VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000, i=-36028794871480321, i0=-2147483648, j0=128, x=6442450952] [L44] COND TRUE !((ix) < 0x7f800000L) [L45] return x + x; VAL [\old(x)=6442450952, huge_floor=1000000000000000000000000000000, i=-36028794871480321, i0=-2147483648, j0=128, x=6442450952] [L67] RET, EXPR floor_float(x) VAL [floor_float(x)=6442450949, huge_floor=1000000000000000000000000000000, x=6442450952] [L67] float res = floor_float(x); [L70] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450949, huge_floor=1000000000000000000000000000000] [L58] return x != x; VAL [\old(x)=6442450949, \result=0, huge_floor=1000000000000000000000000000000, x=6442450949] [L70] RET, EXPR isnan_float(res) VAL [huge_floor=1000000000000000000000000000000, isnan_float(res)=0, res=6442450949, x=6442450952] [L70] COND TRUE !isnan_float(res) [L71] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000, res=6442450949, x=6442450952] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 39 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 47 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=39occurred 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, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 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 0.1.23-635dfa2 [2018-12-02 08:16:28,602 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 08:16:28,603 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 08:16:28,609 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 08:16:28,609 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 08:16:28,609 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 08:16:28,610 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 08:16:28,611 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 08:16:28,611 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 08:16:28,612 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 08:16:28,612 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 08:16:28,612 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 08:16:28,613 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 08:16:28,613 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 08:16:28,614 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 08:16:28,614 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 08:16:28,615 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 08:16:28,616 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 08:16:28,617 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 08:16:28,617 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 08:16:28,618 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 08:16:28,618 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 08:16:28,619 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 08:16:28,620 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 08:16:28,620 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 08:16:28,620 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 08:16:28,621 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 08:16:28,621 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 08:16:28,622 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 08:16:28,622 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 08:16:28,622 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 08:16:28,623 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 08:16:28,623 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 08:16:28,623 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 08:16:28,623 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 08:16:28,624 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 08:16:28,624 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e303b753-eb05-47c9-b3cb-feeb8172a0de/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-02 08:16:28,631 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 08:16:28,631 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 08:16:28,632 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 08:16:28,632 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 08:16:28,632 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 08:16:28,632 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 08:16:28,632 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 08:16:28,632 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 08:16:28,633 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 08:16:28,633 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 08:16:28,633 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 08:16:28,633 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 08:16:28,633 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 08:16:28,633 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 08:16:28,634 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 08:16:28,634 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 08:16:28,634 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 08:16:28,634 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-02 08:16:28,634 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-02 08:16:28,634 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 08:16:28,634 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 08:16:28,634 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 08:16:28,635 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 08:16:28,635 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 08:16:28,635 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 08:16:28,635 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 08:16:28,635 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 08:16:28,635 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 08:16:28,635 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 08:16:28,635 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 08:16:28,636 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 08:16:28,636 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-02 08:16:28,636 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 08:16:28,636 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-02 08:16:28,636 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-02 08:16:28,636 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_e303b753-eb05-47c9-b3cb-feeb8172a0de/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 -> 863e70131520c7e8858a4f32bea4c5cffd3e6ae2 [2018-12-02 08:16:28,654 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 08:16:28,661 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 08:16:28,663 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 08:16:28,664 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 08:16:28,664 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 08:16:28,665 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e303b753-eb05-47c9-b3cb-feeb8172a0de/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c [2018-12-02 08:16:28,700 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e303b753-eb05-47c9-b3cb-feeb8172a0de/bin-2019/utaipan/data/685ba2f22/410f7ca5b34047d9932236b29ff3c485/FLAGbbcb7638c [2018-12-02 08:16:29,084 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 08:16:29,085 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e303b753-eb05-47c9-b3cb-feeb8172a0de/sv-benchmarks/c/float-newlib/float_req_bl_1051_true-unreach-call.c [2018-12-02 08:16:29,088 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e303b753-eb05-47c9-b3cb-feeb8172a0de/bin-2019/utaipan/data/685ba2f22/410f7ca5b34047d9932236b29ff3c485/FLAGbbcb7638c [2018-12-02 08:16:29,096 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e303b753-eb05-47c9-b3cb-feeb8172a0de/bin-2019/utaipan/data/685ba2f22/410f7ca5b34047d9932236b29ff3c485 [2018-12-02 08:16:29,098 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 08:16:29,099 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 08:16:29,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 08:16:29,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 08:16:29,102 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 08:16:29,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:16:29" (1/1) ... [2018-12-02 08:16:29,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@284ba15b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:29, skipping insertion in model container [2018-12-02 08:16:29,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:16:29" (1/1) ... [2018-12-02 08:16:29,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 08:16:29,125 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 08:16:29,220 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 08:16:29,223 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 08:16:29,239 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 08:16:29,253 INFO L195 MainTranslator]: Completed translation [2018-12-02 08:16:29,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:29 WrapperNode [2018-12-02 08:16:29,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 08:16:29,254 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 08:16:29,254 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 08:16:29,254 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 08:16:29,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:29" (1/1) ... [2018-12-02 08:16:29,265 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:29" (1/1) ... [2018-12-02 08:16:29,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 08:16:29,270 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 08:16:29,270 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 08:16:29,270 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 08:16:29,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:29" (1/1) ... [2018-12-02 08:16:29,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:29" (1/1) ... [2018-12-02 08:16:29,277 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:29" (1/1) ... [2018-12-02 08:16:29,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:29" (1/1) ... [2018-12-02 08:16:29,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:29" (1/1) ... [2018-12-02 08:16:29,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:29" (1/1) ... [2018-12-02 08:16:29,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:29" (1/1) ... [2018-12-02 08:16:29,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 08:16:29,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 08:16:29,291 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 08:16:29,292 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 08:16:29,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e303b753-eb05-47c9-b3cb-feeb8172a0de/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 [2018-12-02 08:16:29,353 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 08:16:29,353 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 08:16:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-02 08:16:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-02 08:16:29,354 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-02 08:16:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 08:16:29,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 08:16:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 08:16:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-02 08:16:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-12-02 08:16:29,354 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-12-02 08:16:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 08:16:29,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 08:16:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-02 08:16:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-02 08:16:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 08:16:29,471 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 08:16:29,760 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 08:16:29,760 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-02 08:16:29,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:16:29 BoogieIcfgContainer [2018-12-02 08:16:29,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 08:16:29,761 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 08:16:29,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 08:16:29,763 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 08:16:29,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:16:29" (1/3) ... [2018-12-02 08:16:29,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a15997 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:16:29, skipping insertion in model container [2018-12-02 08:16:29,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:16:29" (2/3) ... [2018-12-02 08:16:29,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a15997 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:16:29, skipping insertion in model container [2018-12-02 08:16:29,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:16:29" (3/3) ... [2018-12-02 08:16:29,765 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1051_true-unreach-call.c [2018-12-02 08:16:29,770 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 08:16:29,775 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 08:16:29,783 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 08:16:29,799 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 08:16:29,800 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 08:16:29,800 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 08:16:29,800 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 08:16:29,800 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 08:16:29,800 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 08:16:29,800 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 08:16:29,801 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 08:16:29,801 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 08:16:29,810 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-12-02 08:16:29,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-02 08:16:29,813 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:16:29,814 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:16:29,815 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:16:29,818 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:16:29,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1109789349, now seen corresponding path program 1 times [2018-12-02 08:16:29,821 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 08:16:29,821 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e303b753-eb05-47c9-b3cb-feeb8172a0de/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 [2018-12-02 08:16:29,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:16:29,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:16:29,874 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 08:16:29,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:16:29,885 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 08:16:29,893 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:16:29,893 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 08:16:29,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 08:16:29,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 08:16:29,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 08:16:29,904 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2018-12-02 08:16:29,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:16:29,916 INFO L93 Difference]: Finished difference Result 68 states and 94 transitions. [2018-12-02 08:16:29,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 08:16:29,917 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-12-02 08:16:29,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:16:29,923 INFO L225 Difference]: With dead ends: 68 [2018-12-02 08:16:29,923 INFO L226 Difference]: Without dead ends: 34 [2018-12-02 08:16:29,925 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 08:16:29,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-12-02 08:16:29,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-12-02 08:16:29,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-02 08:16:29,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2018-12-02 08:16:29,949 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 21 [2018-12-02 08:16:29,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:16:29,949 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2018-12-02 08:16:29,949 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 08:16:29,949 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2018-12-02 08:16:29,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-02 08:16:29,950 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:16:29,950 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:16:29,950 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:16:29,950 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:16:29,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1743788968, now seen corresponding path program 1 times [2018-12-02 08:16:29,951 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 08:16:29,951 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e303b753-eb05-47c9-b3cb-feeb8172a0de/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 [2018-12-02 08:16:29,954 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:16:29,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:16:29,993 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 08:16:30,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:16:30,332 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 08:16:30,338 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:16:30,339 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-02 08:16:30,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 08:16:30,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 08:16:30,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-02 08:16:30,340 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand 9 states. [2018-12-02 08:16:30,711 WARN L180 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-12-02 08:16:31,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:16:31,665 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2018-12-02 08:16:31,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-02 08:16:31,665 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-12-02 08:16:31,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:16:31,667 INFO L225 Difference]: With dead ends: 43 [2018-12-02 08:16:31,667 INFO L226 Difference]: Without dead ends: 36 [2018-12-02 08:16:31,668 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-12-02 08:16:31,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-12-02 08:16:31,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2018-12-02 08:16:31,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-12-02 08:16:31,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2018-12-02 08:16:31,673 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 22 [2018-12-02 08:16:31,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:16:31,673 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2018-12-02 08:16:31,674 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 08:16:31,674 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2018-12-02 08:16:31,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-02 08:16:31,674 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:16:31,674 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:16:31,675 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:16:31,675 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:16:31,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1547275463, now seen corresponding path program 1 times [2018-12-02 08:16:31,675 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 08:16:31,675 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e303b753-eb05-47c9-b3cb-feeb8172a0de/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 [2018-12-02 08:16:31,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:16:31,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:16:31,704 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 08:16:31,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:16:31,784 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 08:16:31,791 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:16:31,791 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-02 08:16:31,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 08:16:31,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 08:16:31,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-02 08:16:31,792 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand 9 states. [2018-12-02 08:16:32,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:16:32,188 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2018-12-02 08:16:32,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-02 08:16:32,189 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-12-02 08:16:32,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:16:32,190 INFO L225 Difference]: With dead ends: 41 [2018-12-02 08:16:32,190 INFO L226 Difference]: Without dead ends: 33 [2018-12-02 08:16:32,190 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-12-02 08:16:32,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-12-02 08:16:32,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-12-02 08:16:32,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-12-02 08:16:32,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2018-12-02 08:16:32,193 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 22 [2018-12-02 08:16:32,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:16:32,193 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2018-12-02 08:16:32,193 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 08:16:32,194 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2018-12-02 08:16:32,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-02 08:16:32,194 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 08:16:32,194 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 08:16:32,194 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 08:16:32,194 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 08:16:32,195 INFO L82 PathProgramCache]: Analyzing trace with hash -136677178, now seen corresponding path program 1 times [2018-12-02 08:16:32,195 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 08:16:32,195 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e303b753-eb05-47c9-b3cb-feeb8172a0de/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 [2018-12-02 08:16:32,198 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 08:16:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 08:16:32,244 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 08:16:32,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 08:16:32,331 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 08:16:32,341 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 08:16:32,342 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 08:16:32,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 08:16:32,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 08:16:32,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 08:16:32,342 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 7 states. [2018-12-02 08:16:32,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 08:16:32,846 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2018-12-02 08:16:32,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-02 08:16:32,847 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-12-02 08:16:32,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 08:16:32,847 INFO L225 Difference]: With dead ends: 39 [2018-12-02 08:16:32,847 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 08:16:32,847 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-12-02 08:16:32,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 08:16:32,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 08:16:32,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 08:16:32,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 08:16:32,848 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2018-12-02 08:16:32,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 08:16:32,848 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 08:16:32,848 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 08:16:32,848 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 08:16:32,848 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 08:16:32,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 08:16:32,904 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 58) no Hoare annotation was computed. [2018-12-02 08:16:32,904 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 58) the Hoare annotation is: true [2018-12-02 08:16:32,904 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 58) no Hoare annotation was computed. [2018-12-02 08:16:32,904 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 08:16:32,904 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-02 08:16:32,904 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 08:16:32,904 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 31) no Hoare annotation was computed. [2018-12-02 08:16:32,904 INFO L448 ceAbstractionStarter]: For program point L44(lines 44 47) no Hoare annotation was computed. [2018-12-02 08:16:32,904 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 48) no Hoare annotation was computed. [2018-12-02 08:16:32,905 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 53) no Hoare annotation was computed. [2018-12-02 08:16:32,905 INFO L448 ceAbstractionStarter]: For program point L49-1(lines 14 55) no Hoare annotation was computed. [2018-12-02 08:16:32,905 INFO L448 ceAbstractionStarter]: For program point L49-2(lines 49 53) no Hoare annotation was computed. [2018-12-02 08:16:32,905 INFO L448 ceAbstractionStarter]: For program point L37(lines 37 41) no Hoare annotation was computed. [2018-12-02 08:16:32,905 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 31) no Hoare annotation was computed. [2018-12-02 08:16:32,905 INFO L448 ceAbstractionStarter]: For program point floor_floatEXIT(lines 14 55) no Hoare annotation was computed. [2018-12-02 08:16:32,905 INFO L448 ceAbstractionStarter]: For program point L25(lines 25 42) no Hoare annotation was computed. [2018-12-02 08:16:32,905 INFO L448 ceAbstractionStarter]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2018-12-02 08:16:32,905 INFO L444 ceAbstractionStarter]: At program point L17-2(lines 17 21) the Hoare annotation is: (= |floor_float_#in~x| floor_float_~x) [2018-12-02 08:16:32,906 INFO L448 ceAbstractionStarter]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2018-12-02 08:16:32,906 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2018-12-02 08:16:32,906 INFO L448 ceAbstractionStarter]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2018-12-02 08:16:32,906 INFO L448 ceAbstractionStarter]: For program point floor_floatFINAL(lines 14 55) no Hoare annotation was computed. [2018-12-02 08:16:32,906 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 32) no Hoare annotation was computed. [2018-12-02 08:16:32,906 INFO L451 ceAbstractionStarter]: At program point floor_floatENTRY(lines 14 55) the Hoare annotation is: true [2018-12-02 08:16:32,906 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 36) no Hoare annotation was computed. [2018-12-02 08:16:32,906 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 08:16:32,906 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-02 08:16:32,906 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 08:16:32,907 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 08:16:32,907 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 60 76) the Hoare annotation is: true [2018-12-02 08:16:32,907 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 60 76) no Hoare annotation was computed. [2018-12-02 08:16:32,907 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 60 76) no Hoare annotation was computed. [2018-12-02 08:16:32,907 INFO L448 ceAbstractionStarter]: For program point L71(line 71) no Hoare annotation was computed. [2018-12-02 08:16:32,907 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 71) no Hoare annotation was computed. [2018-12-02 08:16:32,907 INFO L444 ceAbstractionStarter]: At program point L70(line 70) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~res~0 (fp.add roundNearestTiesToEven .cse0 .cse0)) (= main_~x~0 .cse0))) [2018-12-02 08:16:32,907 INFO L448 ceAbstractionStarter]: For program point L70-1(lines 70 73) no Hoare annotation was computed. [2018-12-02 08:16:32,907 INFO L444 ceAbstractionStarter]: At program point L67(line 67) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2018-12-02 08:16:32,907 INFO L448 ceAbstractionStarter]: For program point L67-1(line 67) no Hoare annotation was computed. [2018-12-02 08:16:32,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:16:32 BoogieIcfgContainer [2018-12-02 08:16:32,915 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 08:16:32,915 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 08:16:32,916 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 08:16:32,916 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 08:16:32,916 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:16:29" (3/4) ... [2018-12-02 08:16:32,919 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 08:16:32,923 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-12-02 08:16:32,923 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 08:16:32,923 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_float [2018-12-02 08:16:32,923 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 08:16:32,927 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-12-02 08:16:32,927 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-02 08:16:32,927 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 08:16:32,947 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-02 08:16:32,963 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e303b753-eb05-47c9-b3cb-feeb8172a0de/bin-2019/utaipan/witness.graphml [2018-12-02 08:16:32,963 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 08:16:32,964 INFO L168 Benchmark]: Toolchain (without parser) took 3865.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 943.4 MB in the beginning and 950.5 MB in the end (delta: -7.1 MB). Peak memory consumption was 139.7 MB. Max. memory is 11.5 GB. [2018-12-02 08:16:32,965 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 08:16:32,965 INFO L168 Benchmark]: CACSL2BoogieTranslator took 154.70 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 08:16:32,965 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.46 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-02 08:16:32,966 INFO L168 Benchmark]: Boogie Preprocessor took 21.27 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 08:16:32,966 INFO L168 Benchmark]: RCFGBuilder took 469.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -183.5 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-12-02 08:16:32,966 INFO L168 Benchmark]: TraceAbstraction took 3153.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 957.2 MB in the end (delta: 153.6 MB). Peak memory consumption was 153.6 MB. Max. memory is 11.5 GB. [2018-12-02 08:16:32,967 INFO L168 Benchmark]: Witness Printer took 47.87 ms. Allocated memory is still 1.2 GB. Free memory was 957.2 MB in the beginning and 950.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-12-02 08:16:32,969 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 154.70 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.46 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.27 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 469.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -183.5 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3153.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 957.2 MB in the end (delta: 153.6 MB). Peak memory consumption was 153.6 MB. Max. memory is 11.5 GB. * Witness Printer took 47.87 ms. Allocated memory is still 1.2 GB. Free memory was 957.2 MB in the beginning and 950.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 71]: 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: 17]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. SAFE Result, 3.1s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 2.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 122 SDtfs, 108 SDslu, 423 SDs, 0 SdLazy, 221 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 100 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 34 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 14 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 87 ConstructedInterpolants, 8 QuantifiedInterpolants, 9390 SizeOfPredicates, 13 NumberOfNonLiveVariables, 239 ConjunctsInSsa, 32 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...