./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0620a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/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 bc7b929d20445456da87d92c4566355380c50982 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/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 bc7b929d20445456da87d92c4566355380c50982 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 23:02:01,849 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:02:01,850 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:02:01,859 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:02:01,860 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:02:01,860 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:02:01,861 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:02:01,863 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:02:01,864 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:02:01,865 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:02:01,865 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:02:01,866 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:02:01,866 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:02:01,867 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:02:01,868 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:02:01,868 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:02:01,869 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:02:01,870 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:02:01,872 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:02:01,873 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:02:01,874 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:02:01,875 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:02:01,877 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:02:01,877 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:02:01,877 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:02:01,878 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:02:01,879 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:02:01,880 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:02:01,881 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:02:01,881 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:02:01,882 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:02:01,882 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:02:01,882 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:02:01,883 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:02:01,884 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:02:01,885 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:02:01,885 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 23:02:01,896 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:02:01,897 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:02:01,897 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:02:01,897 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 23:02:01,898 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 23:02:01,898 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 23:02:01,898 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 23:02:01,898 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 23:02:01,898 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 23:02:01,898 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 23:02:01,899 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 23:02:01,900 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:02:01,900 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 23:02:01,901 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 23:02:01,901 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 23:02:01,901 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:02:01,901 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:02:01,901 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:02:01,901 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:02:01,902 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 23:02:01,902 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:02:01,902 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:02:01,902 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:02:01,902 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 23:02:01,902 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:02:01,902 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 23:02:01,903 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:02:01,903 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:02:01,903 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:02:01,903 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:02:01,903 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 23:02:01,903 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:02:01,903 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 23:02:01,904 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 23:02:01,904 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_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/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 -> bc7b929d20445456da87d92c4566355380c50982 [2018-10-26 23:02:01,933 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:02:01,943 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:02:01,946 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:02:01,947 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:02:01,947 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:02:01,948 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0620a_true-unreach-call.c [2018-10-26 23:02:01,996 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/bin-2019/utaipan/data/c23b348e2/ceee380e14c4487a927f5a3b9e422c12/FLAG133f5c48e [2018-10-26 23:02:02,367 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:02:02,368 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/sv-benchmarks/c/float-newlib/float_req_bl_0620a_true-unreach-call.c [2018-10-26 23:02:02,375 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/bin-2019/utaipan/data/c23b348e2/ceee380e14c4487a927f5a3b9e422c12/FLAG133f5c48e [2018-10-26 23:02:02,387 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/bin-2019/utaipan/data/c23b348e2/ceee380e14c4487a927f5a3b9e422c12 [2018-10-26 23:02:02,391 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:02:02,392 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 23:02:02,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:02:02,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:02:02,396 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:02:02,397 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:02:02" (1/1) ... [2018-10-26 23:02:02,400 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@362cc67b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:02:02, skipping insertion in model container [2018-10-26 23:02:02,400 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:02:02" (1/1) ... [2018-10-26 23:02:02,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:02:02,430 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:02:02,584 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:02:02,590 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:02:02,625 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:02:02,646 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:02:02,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:02:02 WrapperNode [2018-10-26 23:02:02,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:02:02,648 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 23:02:02,648 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 23:02:02,648 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 23:02:02,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:02:02" (1/1) ... [2018-10-26 23:02:02,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:02:02" (1/1) ... [2018-10-26 23:02:02,725 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 23:02:02,725 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:02:02,725 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:02:02,725 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:02:02,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:02:02" (1/1) ... [2018-10-26 23:02:02,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:02:02" (1/1) ... [2018-10-26 23:02:02,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:02:02" (1/1) ... [2018-10-26 23:02:02,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:02:02" (1/1) ... [2018-10-26 23:02:02,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:02:02" (1/1) ... [2018-10-26 23:02:02,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:02:02" (1/1) ... [2018-10-26 23:02:02,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:02:02" (1/1) ... [2018-10-26 23:02:02,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:02:02,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:02:02,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:02:02,888 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:02:02,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:02:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/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 [2018-10-26 23:02:02,955 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 23:02:02,955 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 23:02:02,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 23:02:02,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 23:02:02,956 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-10-26 23:02:02,956 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-10-26 23:02:02,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:02:02,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:02:02,956 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-10-26 23:02:02,956 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-10-26 23:02:02,956 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-10-26 23:02:02,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-10-26 23:02:03,943 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:02:03,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:02:03 BoogieIcfgContainer [2018-10-26 23:02:03,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:02:03,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 23:02:03,944 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 23:02:03,946 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 23:02:03,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 11:02:02" (1/3) ... [2018-10-26 23:02:03,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3762fdf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:02:03, skipping insertion in model container [2018-10-26 23:02:03,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:02:02" (2/3) ... [2018-10-26 23:02:03,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3762fdf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:02:03, skipping insertion in model container [2018-10-26 23:02:03,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:02:03" (3/3) ... [2018-10-26 23:02:03,949 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620a_true-unreach-call.c [2018-10-26 23:02:03,959 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 23:02:03,966 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 23:02:03,980 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 23:02:04,012 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 23:02:04,013 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 23:02:04,013 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 23:02:04,013 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 23:02:04,013 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 23:02:04,014 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 23:02:04,014 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 23:02:04,014 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 23:02:04,030 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-10-26 23:02:04,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 23:02:04,036 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:02:04,036 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:02:04,039 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:02:04,044 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:02:04,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1496292074, now seen corresponding path program 1 times [2018-10-26 23:02:04,047 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:02:04,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:02:04,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:02:04,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:02:04,088 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:02:04,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:02:04,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:02:04,220 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:02:04,220 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 23:02:04,220 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:02:04,226 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 23:02:04,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 23:02:04,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 23:02:04,241 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 2 states. [2018-10-26 23:02:04,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:02:04,264 INFO L93 Difference]: Finished difference Result 100 states and 142 transitions. [2018-10-26 23:02:04,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 23:02:04,265 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-10-26 23:02:04,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:02:04,275 INFO L225 Difference]: With dead ends: 100 [2018-10-26 23:02:04,275 INFO L226 Difference]: Without dead ends: 50 [2018-10-26 23:02:04,278 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 23:02:04,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-10-26 23:02:04,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-10-26 23:02:04,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-10-26 23:02:04,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2018-10-26 23:02:04,316 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 18 [2018-10-26 23:02:04,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:02:04,317 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2018-10-26 23:02:04,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 23:02:04,317 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2018-10-26 23:02:04,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-26 23:02:04,318 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:02:04,318 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:02:04,318 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:02:04,318 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:02:04,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1778836789, now seen corresponding path program 1 times [2018-10-26 23:02:04,319 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:02:04,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:02:04,322 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:02:04,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:02:04,322 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:02:04,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:02:04,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:02:04,446 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 23:02:04,465 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:02:04,466 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:02:04,467 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:02:04,468 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:02:04,469 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:02:04,469 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:02:04,469 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:02:04,470 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:02:04,470 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:02:04,470 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:02:04,471 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:02:04,473 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:02:04,473 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:02:04,474 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:02:04,474 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:02:04,474 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:02:04,475 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:02:04,475 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:02:04,475 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:02:04,476 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:02:04,476 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:02:04,476 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:02:04,477 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:02:04,477 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:02:04,477 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:02:04,478 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:02:04,478 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:02:04,478 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:02:04,492 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450970 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-10-26 23:02:04,492 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450952 could not be translated for associated CType ARRAY#_11_~FLOAT# [2018-10-26 23:02:04,493 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450949 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-10-26 23:02:04,493 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450960 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-10-26 23:02:04,493 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450953 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-10-26 23:02:04,494 WARN L1239 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450956 could not be translated for associated CType ARRAY#_11_~FLOAT# [2018-10-26 23:02:04,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 11:02:04 BoogieIcfgContainer [2018-10-26 23:02:04,517 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 23:02:04,517 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 23:02:04,517 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 23:02:04,517 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 23:02:04,518 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:02:03" (3/4) ... [2018-10-26 23:02:04,525 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-26 23:02:04,525 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 23:02:04,526 INFO L168 Benchmark]: Toolchain (without parser) took 2134.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 958.4 MB in the beginning and 1.1 GB in the end (delta: -95.8 MB). Peak memory consumption was 58.4 MB. Max. memory is 11.5 GB. [2018-10-26 23:02:04,529 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:02:04,530 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.84 ms. Allocated memory is still 1.0 GB. Free memory was 958.4 MB in the beginning and 944.8 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-10-26 23:02:04,531 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.12 ms. Allocated memory is still 1.0 GB. Free memory was 944.8 MB in the beginning and 942.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:02:04,531 INFO L168 Benchmark]: Boogie Preprocessor took 162.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 942.1 MB in the beginning and 1.2 GB in the end (delta: -208.2 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:02:04,532 INFO L168 Benchmark]: RCFGBuilder took 1056.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 61.3 MB). Peak memory consumption was 61.3 MB. Max. memory is 11.5 GB. [2018-10-26 23:02:04,533 INFO L168 Benchmark]: TraceAbstraction took 572.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. [2018-10-26 23:02:04,533 INFO L168 Benchmark]: Witness Printer took 7.89 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. [2018-10-26 23:02:04,538 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 253.84 ms. Allocated memory is still 1.0 GB. Free memory was 958.4 MB in the beginning and 944.8 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 77.12 ms. Allocated memory is still 1.0 GB. Free memory was 944.8 MB in the beginning and 942.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 162.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 942.1 MB in the beginning and 1.2 GB in the end (delta: -208.2 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1056.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 61.3 MB). Peak memory consumption was 61.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 572.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. * Witness Printer took 7.89 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. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450970 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450952 could not be translated for associated CType ARRAY#_11_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450949 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450960 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450953 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450956 could not be translated for associated CType ARRAY#_11_~FLOAT# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 142]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 141, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 62, overapproximation of someBinaryArithmeticFLOAToperation at line 65. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; [L29-L34] CALL static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L29-L34] RET static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L29-L34] RET static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L29-L34] RET static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L29-L34] RET static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L29-L34] RET static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] CALL static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L36-L41] RET static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L36-L41] RET static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L36-L41] RET static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L36-L41] RET static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L36-L41] RET static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] CALL static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L43-L47] RET static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L43-L47] RET static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L43-L47] RET static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L43-L47] RET static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L43-L47] RET static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L43-L47] RET static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L43-L47] RET static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L43-L47] RET static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L43-L47] RET static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L43-L47] RET static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L43-L47] RET static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L43-L47] RET static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; VAL [\old(aT_atan)=null, \old(aT_atan)=null, \old(atanhi_atan)=null, \old(atanhi_atan)=null, \old(atanlo_atan)=null, \old(atanlo_atan)=null, \old(huge_atan)=6442450966, \old(huge_floor)=6442450962, \old(one_atan)=6442450957, \old(pi)=6442450964, \old(pi_o_2)=6442450945, \old(pi_o_4)=6442450959, aT_atan={6442450947:0}, atanhi_atan={6442450954:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L137] float x = 0.0f; VAL [aT_atan={6442450947:0}, atanhi_atan={6442450954:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=0] [L138] CALL, EXPR atan_float(x) VAL [aT_atan={6442450947:0}, atanhi_atan={6442450954:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L54] float w, s1, s2, z; [L55] __int32_t ix, hx, id; VAL [aT_atan={6442450947:0}, atanhi_atan={6442450954:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L58] CALL ieee_float_shape_type gf_u; [L58] RET ieee_float_shape_type gf_u; [L59] CALL gf_u.value = (x) [L59] RET gf_u.value = (x) [L60] CALL, EXPR gf_u.word [L60] RET, EXPR gf_u.word [L60] (hx) = gf_u.word [L60] RET (hx) = gf_u.word [L61] COND FALSE !(0) VAL [aT_atan={6442450947:0}, atanhi_atan={6442450954:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L62] ix = hx & 0x7fffffff VAL [aT_atan={6442450947:0}, atanhi_atan={6442450954:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L63] COND TRUE ix >= 0x50800000 VAL [aT_atan={6442450947:0}, atanhi_atan={6442450954:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L64] COND TRUE ((ix) > 0x7f800000L) [L65] RET return x + x; VAL [aT_atan={6442450947:0}, atanhi_atan={6442450954:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L138] EXPR atan_float(x) VAL [aT_atan={6442450947:0}, atan_float(x)=6442450950, atanhi_atan={6442450954:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=0] [L138] float res = atan_float(x); [L141] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [aT_atan={6442450947:0}, atanhi_atan={6442450954:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=6442450950, res == 0.0f && __signbit_float(res) == 0=0, x=0] [L141] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L142] __VERIFIER_error() VAL [aT_atan={6442450947:0}, atanhi_atan={6442450954:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=6442450950, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 54 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 65 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=54occurred 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, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-10-26 23:02:06,779 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:02:06,781 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:02:06,795 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:02:06,795 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:02:06,796 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:02:06,797 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:02:06,798 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:02:06,800 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:02:06,801 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:02:06,801 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:02:06,802 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:02:06,802 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:02:06,804 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:02:06,805 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:02:06,805 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:02:06,806 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:02:06,808 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:02:06,810 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:02:06,811 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:02:06,812 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:02:06,813 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:02:06,815 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:02:06,816 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:02:06,816 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:02:06,817 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:02:06,817 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:02:06,818 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:02:06,819 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:02:06,821 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:02:06,821 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:02:06,821 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:02:06,821 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:02:06,822 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:02:06,822 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:02:06,824 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:02:06,824 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-26 23:02:06,840 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:02:06,840 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:02:06,841 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:02:06,841 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 23:02:06,842 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 23:02:06,842 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 23:02:06,842 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 23:02:06,842 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 23:02:06,843 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:02:06,843 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 23:02:06,847 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 23:02:06,847 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:02:06,848 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:02:06,848 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:02:06,848 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:02:06,848 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-26 23:02:06,848 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-26 23:02:06,849 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 23:02:06,849 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:02:06,849 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:02:06,849 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:02:06,849 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 23:02:06,849 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:02:06,850 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 23:02:06,850 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:02:06,850 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:02:06,850 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:02:06,850 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:02:06,851 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-26 23:02:06,851 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:02:06,855 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-26 23:02:06,855 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-26 23:02:06,855 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_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/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 -> bc7b929d20445456da87d92c4566355380c50982 [2018-10-26 23:02:06,923 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:02:06,939 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:02:06,943 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:02:06,945 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:02:06,945 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:02:06,946 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0620a_true-unreach-call.c [2018-10-26 23:02:07,004 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/bin-2019/utaipan/data/05faac7f0/3b0cd455a38241e89caa51ac4657fc72/FLAG94b354ce9 [2018-10-26 23:02:07,426 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:02:07,427 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/sv-benchmarks/c/float-newlib/float_req_bl_0620a_true-unreach-call.c [2018-10-26 23:02:07,442 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/bin-2019/utaipan/data/05faac7f0/3b0cd455a38241e89caa51ac4657fc72/FLAG94b354ce9 [2018-10-26 23:02:07,464 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/bin-2019/utaipan/data/05faac7f0/3b0cd455a38241e89caa51ac4657fc72 [2018-10-26 23:02:07,470 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:02:07,472 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 23:02:07,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:02:07,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:02:07,477 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:02:07,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:02:07" (1/1) ... [2018-10-26 23:02:07,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@641b4f10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:02:07, skipping insertion in model container [2018-10-26 23:02:07,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:02:07" (1/1) ... [2018-10-26 23:02:07,497 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:02:07,525 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:02:07,712 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:02:07,721 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:02:07,773 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:02:07,805 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:02:07,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:02:07 WrapperNode [2018-10-26 23:02:07,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:02:07,806 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 23:02:07,806 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 23:02:07,806 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 23:02:07,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:02:07" (1/1) ... [2018-10-26 23:02:07,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:02:07" (1/1) ... [2018-10-26 23:02:07,887 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 23:02:07,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:02:07,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:02:07,887 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:02:07,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:02:07" (1/1) ... [2018-10-26 23:02:07,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:02:07" (1/1) ... [2018-10-26 23:02:07,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:02:07" (1/1) ... [2018-10-26 23:02:07,915 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:02:07" (1/1) ... [2018-10-26 23:02:07,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:02:07" (1/1) ... [2018-10-26 23:02:07,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:02:07" (1/1) ... [2018-10-26 23:02:07,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:02:07" (1/1) ... [2018-10-26 23:02:07,973 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:02:07,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:02:07,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:02:07,980 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:02:07,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:02:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/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 [2018-10-26 23:02:08,159 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 23:02:08,159 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 23:02:08,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 23:02:08,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 23:02:08,160 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-10-26 23:02:08,161 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-10-26 23:02:08,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:02:08,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:02:08,162 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-10-26 23:02:08,162 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-10-26 23:02:08,162 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-10-26 23:02:08,164 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-10-26 23:02:09,737 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 23:02:09,852 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 23:02:18,440 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 23:02:18,484 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 23:02:18,570 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:02:18,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:02:18 BoogieIcfgContainer [2018-10-26 23:02:18,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:02:18,571 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 23:02:18,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 23:02:18,574 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 23:02:18,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 11:02:07" (1/3) ... [2018-10-26 23:02:18,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5646ea2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:02:18, skipping insertion in model container [2018-10-26 23:02:18,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:02:07" (2/3) ... [2018-10-26 23:02:18,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5646ea2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:02:18, skipping insertion in model container [2018-10-26 23:02:18,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:02:18" (3/3) ... [2018-10-26 23:02:18,580 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620a_true-unreach-call.c [2018-10-26 23:02:18,591 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 23:02:18,601 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 23:02:18,617 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 23:02:18,647 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 23:02:18,647 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 23:02:18,648 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 23:02:18,648 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 23:02:18,648 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 23:02:18,648 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 23:02:18,648 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 23:02:18,648 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 23:02:18,648 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 23:02:18,671 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-10-26 23:02:18,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 23:02:18,682 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:02:18,683 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:02:18,686 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:02:18,693 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:02:18,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1496292074, now seen corresponding path program 1 times [2018-10-26 23:02:18,699 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 23:02:18,701 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-26 23:02:18,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-10-26 23:02:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:02:18,889 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:02:18,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:02:18,904 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 23:02:18,920 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:02:18,921 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 23:02:18,924 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 23:02:18,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 23:02:18,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 23:02:18,933 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 2 states. [2018-10-26 23:02:18,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:02:18,954 INFO L93 Difference]: Finished difference Result 100 states and 142 transitions. [2018-10-26 23:02:18,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 23:02:18,956 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-10-26 23:02:18,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:02:18,966 INFO L225 Difference]: With dead ends: 100 [2018-10-26 23:02:18,967 INFO L226 Difference]: Without dead ends: 50 [2018-10-26 23:02:18,970 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 23:02:18,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-10-26 23:02:19,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-10-26 23:02:19,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-10-26 23:02:19,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2018-10-26 23:02:19,011 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 18 [2018-10-26 23:02:19,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:02:19,012 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2018-10-26 23:02:19,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 23:02:19,012 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2018-10-26 23:02:19,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-26 23:02:19,013 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:02:19,014 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:02:19,014 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:02:19,014 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:02:19,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1778836789, now seen corresponding path program 1 times [2018-10-26 23:02:19,016 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 23:02:19,017 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/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 [2018-10-26 23:02:19,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:02:19,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:02:19,213 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:02:19,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:02:19,672 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 23:02:19,691 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:02:19,692 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 23:02:19,693 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 23:02:19,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 23:02:19,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 23:02:19,695 INFO L87 Difference]: Start difference. First operand 50 states and 61 transitions. Second operand 7 states. [2018-10-26 23:02:20,254 WARN L179 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-10-26 23:02:30,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:02:30,289 INFO L93 Difference]: Finished difference Result 68 states and 79 transitions. [2018-10-26 23:02:30,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 23:02:30,335 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-10-26 23:02:30,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:02:30,338 INFO L225 Difference]: With dead ends: 68 [2018-10-26 23:02:30,338 INFO L226 Difference]: Without dead ends: 51 [2018-10-26 23:02:30,340 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-10-26 23:02:30,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-10-26 23:02:30,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2018-10-26 23:02:30,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-10-26 23:02:30,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2018-10-26 23:02:30,350 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 19 [2018-10-26 23:02:30,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:02:30,351 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2018-10-26 23:02:30,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 23:02:30,352 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2018-10-26 23:02:30,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-26 23:02:30,353 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:02:30,353 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:02:30,354 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:02:30,354 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:02:30,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1029457714, now seen corresponding path program 1 times [2018-10-26 23:02:30,355 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 23:02:30,355 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-26 23:02:30,375 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-10-26 23:02:30,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:02:30,619 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:02:31,030 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 1 [2018-10-26 23:02:31,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:02:31,032 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 23:02:31,050 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:02:31,050 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 23:02:31,051 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 23:02:31,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 23:02:31,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 23:02:31,052 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand 7 states. [2018-10-26 23:02:41,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:02:41,665 INFO L93 Difference]: Finished difference Result 56 states and 64 transitions. [2018-10-26 23:02:41,666 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 23:02:41,666 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-10-26 23:02:41,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:02:41,668 INFO L225 Difference]: With dead ends: 56 [2018-10-26 23:02:41,668 INFO L226 Difference]: Without dead ends: 53 [2018-10-26 23:02:41,669 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-10-26 23:02:41,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-10-26 23:02:41,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2018-10-26 23:02:41,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-10-26 23:02:41,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 60 transitions. [2018-10-26 23:02:41,678 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 60 transitions. Word has length 21 [2018-10-26 23:02:41,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:02:41,679 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 60 transitions. [2018-10-26 23:02:41,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 23:02:41,679 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2018-10-26 23:02:41,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-26 23:02:41,681 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:02:41,681 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:02:41,681 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:02:41,681 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:02:41,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1601239440, now seen corresponding path program 1 times [2018-10-26 23:02:41,682 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 23:02:41,682 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/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 [2018-10-26 23:02:41,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:02:42,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:02:42,842 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:02:43,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:02:43,018 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 23:02:43,048 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:02:43,048 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 23:02:43,048 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 23:02:43,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 23:02:43,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 23:02:43,049 INFO L87 Difference]: Start difference. First operand 52 states and 60 transitions. Second operand 7 states. [2018-10-26 23:02:52,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:02:52,911 INFO L93 Difference]: Finished difference Result 74 states and 84 transitions. [2018-10-26 23:02:52,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-26 23:02:52,962 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-10-26 23:02:52,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:02:52,963 INFO L225 Difference]: With dead ends: 74 [2018-10-26 23:02:52,963 INFO L226 Difference]: Without dead ends: 52 [2018-10-26 23:02:52,965 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-10-26 23:02:52,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-10-26 23:02:52,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2018-10-26 23:02:52,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-10-26 23:02:52,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2018-10-26 23:02:52,972 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 23 [2018-10-26 23:02:52,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:02:52,972 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2018-10-26 23:02:52,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 23:02:52,973 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2018-10-26 23:02:52,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-26 23:02:52,973 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:02:52,973 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:02:52,974 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:02:52,974 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:02:52,974 INFO L82 PathProgramCache]: Analyzing trace with hash 835656139, now seen corresponding path program 1 times [2018-10-26 23:02:52,974 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 23:02:52,975 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-10-26 23:02:52,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:02:54,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:02:54,315 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:02:55,548 WARN L179 SmtUtils]: Spent 597.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-26 23:02:55,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:02:55,556 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 23:02:55,589 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:02:55,589 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 23:02:55,590 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 23:02:55,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 23:02:55,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-26 23:02:55,590 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand 6 states. [2018-10-26 23:03:01,386 WARN L179 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-26 23:03:14,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:03:14,506 INFO L93 Difference]: Finished difference Result 70 states and 76 transitions. [2018-10-26 23:03:14,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 23:03:14,534 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-10-26 23:03:14,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:03:14,535 INFO L225 Difference]: With dead ends: 70 [2018-10-26 23:03:14,535 INFO L226 Difference]: Without dead ends: 50 [2018-10-26 23:03:14,535 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-26 23:03:14,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-10-26 23:03:14,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-10-26 23:03:14,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-10-26 23:03:14,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2018-10-26 23:03:14,549 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 24 [2018-10-26 23:03:14,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:03:14,549 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2018-10-26 23:03:14,549 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 23:03:14,550 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2018-10-26 23:03:14,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-10-26 23:03:14,551 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:03:14,551 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:03:14,551 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:03:14,551 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:03:14,551 INFO L82 PathProgramCache]: Analyzing trace with hash 420815084, now seen corresponding path program 1 times [2018-10-26 23:03:14,552 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 23:03:14,552 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-10-26 23:03:14,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:03:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:03:14,726 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:03:15,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:03:15,033 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 23:03:15,045 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:03:15,045 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-26 23:03:15,046 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-26 23:03:15,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-26 23:03:15,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-10-26 23:03:15,046 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand 12 states. [2018-10-26 23:03:20,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:03:20,335 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2018-10-26 23:03:20,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-26 23:03:20,336 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 29 [2018-10-26 23:03:20,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:03:20,337 INFO L225 Difference]: With dead ends: 55 [2018-10-26 23:03:20,337 INFO L226 Difference]: Without dead ends: 44 [2018-10-26 23:03:20,338 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2018-10-26 23:03:20,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-10-26 23:03:20,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-10-26 23:03:20,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-10-26 23:03:20,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions. [2018-10-26 23:03:20,347 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 29 [2018-10-26 23:03:20,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:03:20,348 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 46 transitions. [2018-10-26 23:03:20,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-26 23:03:20,348 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2018-10-26 23:03:20,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-26 23:03:20,349 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:03:20,349 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:03:20,349 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:03:20,349 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:03:20,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1484542139, now seen corresponding path program 1 times [2018-10-26 23:03:20,350 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 23:03:20,350 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/bin-2019/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-26 23:03:20,356 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-10-26 23:03:21,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:03:21,827 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:03:21,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:03:21,927 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 23:03:21,952 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:03:21,952 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 23:03:21,952 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 23:03:21,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 23:03:21,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 23:03:21,953 INFO L87 Difference]: Start difference. First operand 44 states and 46 transitions. Second operand 7 states. [2018-10-26 23:03:27,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:03:27,072 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2018-10-26 23:03:27,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 23:03:27,073 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-10-26 23:03:27,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:03:27,074 INFO L225 Difference]: With dead ends: 44 [2018-10-26 23:03:27,074 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 23:03:27,074 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-10-26 23:03:27,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 23:03:27,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 23:03:27,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 23:03:27,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 23:03:27,075 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-10-26 23:03:27,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:03:27,075 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 23:03:27,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 23:03:27,075 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 23:03:27,075 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 23:03:27,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 23:03:27,330 WARN L179 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2018-10-26 23:03:27,574 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-26 23:03:27,574 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-26 23:03:27,574 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 23:03:27,575 INFO L425 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 14 27) no Hoare annotation was computed. [2018-10-26 23:03:27,575 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 25) no Hoare annotation was computed. [2018-10-26 23:03:27,575 INFO L425 ceAbstractionStarter]: For program point L21-2(lines 14 27) no Hoare annotation was computed. [2018-10-26 23:03:27,575 INFO L425 ceAbstractionStarter]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2018-10-26 23:03:27,575 INFO L425 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 14 27) no Hoare annotation was computed. [2018-10-26 23:03:27,575 INFO L428 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 14 27) the Hoare annotation is: true [2018-10-26 23:03:27,575 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-10-26 23:03:27,575 INFO L428 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: true [2018-10-26 23:03:27,575 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 23:03:27,576 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~one_atan~0 ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1.0))) (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_atan~0)) [2018-10-26 23:03:27,576 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 23:03:27,576 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 23:03:27,576 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 129 147) the Hoare annotation is: true [2018-10-26 23:03:27,576 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 129 147) no Hoare annotation was computed. [2018-10-26 23:03:27,576 INFO L425 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-10-26 23:03:27,576 INFO L425 ceAbstractionStarter]: For program point L141(line 141) no Hoare annotation was computed. [2018-10-26 23:03:27,576 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 129 147) no Hoare annotation was computed. [2018-10-26 23:03:27,576 INFO L421 ceAbstractionStarter]: At program point L141-1(line 141) the Hoare annotation is: (or (and (= (_ +zero 8 24) main_~x~0) (= (_ +zero 8 24) main_~res~0) |main_#t~short29|) (not (= ~one_atan~0 ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1.0)))) (not (= ~huge_atan~0 ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0))))) [2018-10-26 23:03:27,576 INFO L425 ceAbstractionStarter]: For program point L141-2(line 141) no Hoare annotation was computed. [2018-10-26 23:03:27,577 INFO L421 ceAbstractionStarter]: At program point L138(line 138) the Hoare annotation is: (or (= (_ +zero 8 24) main_~x~0) (not (= ~one_atan~0 ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1.0)))) (not (= ~huge_atan~0 ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0))))) [2018-10-26 23:03:27,577 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 142) no Hoare annotation was computed. [2018-10-26 23:03:27,577 INFO L425 ceAbstractionStarter]: For program point L138-1(line 138) no Hoare annotation was computed. [2018-10-26 23:03:27,577 INFO L425 ceAbstractionStarter]: For program point L141-4(lines 141 144) no Hoare annotation was computed. [2018-10-26 23:03:27,577 INFO L425 ceAbstractionStarter]: For program point L64(lines 64 65) no Hoare annotation was computed. [2018-10-26 23:03:27,577 INFO L428 ceAbstractionStarter]: At program point atan_floatENTRY(lines 53 115) the Hoare annotation is: true [2018-10-26 23:03:27,577 INFO L425 ceAbstractionStarter]: For program point atan_floatFINAL(lines 53 115) no Hoare annotation was computed. [2018-10-26 23:03:27,577 INFO L425 ceAbstractionStarter]: For program point L73(lines 73 74) no Hoare annotation was computed. [2018-10-26 23:03:27,577 INFO L425 ceAbstractionStarter]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2018-10-26 23:03:27,578 INFO L421 ceAbstractionStarter]: At program point L57-3(lines 57 61) the Hoare annotation is: (or (= |atan_float_#in~x| atan_float_~x) (not (= ~one_atan~0 ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1.0)))) (not (= ~huge_atan~0 ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0))))) [2018-10-26 23:03:27,578 INFO L425 ceAbstractionStarter]: For program point L57-4(lines 57 61) no Hoare annotation was computed. [2018-10-26 23:03:27,578 INFO L421 ceAbstractionStarter]: At program point L78(line 78) the Hoare annotation is: (or (and (exists ((atan_float_~hx~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) atan_float_~hx~0) ((_ extract 30 23) atan_float_~hx~0) ((_ extract 22 0) atan_float_~hx~0)) |atan_float_#in~x|) (= (bvand atan_float_~hx~0 (_ bv2147483647 32)) atan_float_~ix~1))) (= (fp ((_ extract 31 31) atan_float_~hx~0) ((_ extract 30 23) atan_float_~hx~0) ((_ extract 22 0) atan_float_~hx~0)) |atan_float_#in~x|) (= |atan_float_#in~x| atan_float_~x) (exists ((atan_float_~hx~0 (_ BitVec 32))) (and (not (bvslt (bvand atan_float_~hx~0 (_ bv2147483647 32)) (_ bv1054867456 32))) (= (fp ((_ extract 31 31) atan_float_~hx~0) ((_ extract 30 23) atan_float_~hx~0) ((_ extract 22 0) atan_float_~hx~0)) |atan_float_#in~x|)))) (not (= ~one_atan~0 ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1.0)))) (not (= ~huge_atan~0 ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0))))) [2018-10-26 23:03:27,578 INFO L425 ceAbstractionStarter]: For program point L78-1(line 78) no Hoare annotation was computed. [2018-10-26 23:03:27,578 INFO L425 ceAbstractionStarter]: For program point L66(lines 66 69) no Hoare annotation was computed. [2018-10-26 23:03:27,578 INFO L425 ceAbstractionStarter]: For program point L79(lines 79 95) no Hoare annotation was computed. [2018-10-26 23:03:27,578 INFO L425 ceAbstractionStarter]: For program point L71(lines 71 96) no Hoare annotation was computed. [2018-10-26 23:03:27,578 INFO L425 ceAbstractionStarter]: For program point atan_floatEXIT(lines 53 115) no Hoare annotation was computed. [2018-10-26 23:03:27,579 INFO L425 ceAbstractionStarter]: For program point L63(lines 63 70) no Hoare annotation was computed. [2018-10-26 23:03:27,579 INFO L425 ceAbstractionStarter]: For program point L88(lines 88 94) no Hoare annotation was computed. [2018-10-26 23:03:27,579 INFO L425 ceAbstractionStarter]: For program point L88-2(lines 71 96) no Hoare annotation was computed. [2018-10-26 23:03:27,579 INFO L425 ceAbstractionStarter]: For program point L113(line 113) no Hoare annotation was computed. [2018-10-26 23:03:27,579 INFO L425 ceAbstractionStarter]: For program point L80(lines 80 86) no Hoare annotation was computed. [2018-10-26 23:03:27,579 INFO L425 ceAbstractionStarter]: For program point L113-2(line 113) no Hoare annotation was computed. [2018-10-26 23:03:27,580 INFO L425 ceAbstractionStarter]: For program point L109(lines 109 114) no Hoare annotation was computed. [2018-10-26 23:03:27,580 INFO L425 ceAbstractionStarter]: For program point L72(lines 72 75) no Hoare annotation was computed. [2018-10-26 23:03:27,580 INFO L425 ceAbstractionStarter]: For program point L72-2(lines 72 75) no Hoare annotation was computed. [2018-10-26 23:03:27,580 INFO L425 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 117 127) no Hoare annotation was computed. [2018-10-26 23:03:27,580 INFO L425 ceAbstractionStarter]: For program point L120-1(lines 120 124) no Hoare annotation was computed. [2018-10-26 23:03:27,581 INFO L421 ceAbstractionStarter]: At program point L120-3(lines 120 124) the Hoare annotation is: (or (= |__signbit_float_#in~x| __signbit_float_~x) (not (= ~one_atan~0 ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1.0)))) (not (= ~huge_atan~0 ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0))))) [2018-10-26 23:03:27,581 INFO L425 ceAbstractionStarter]: For program point L120-4(lines 120 124) no Hoare annotation was computed. [2018-10-26 23:03:27,581 INFO L428 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 117 127) the Hoare annotation is: true [2018-10-26 23:03:27,581 INFO L425 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 117 127) no Hoare annotation was computed. [2018-10-26 23:03:27,589 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:03:27,590 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:03:27,590 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:03:27,590 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:03:27,593 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:03:27,593 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:03:27,594 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:03:27,594 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:03:27,595 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:03:27,595 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:03:27,595 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:03:27,596 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:03:27,596 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:03:27,596 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:03:27,596 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:03:27,597 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:03:27,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 11:03:27 BoogieIcfgContainer [2018-10-26 23:03:27,599 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 23:03:27,599 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 23:03:27,599 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 23:03:27,599 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 23:03:27,600 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:02:18" (3/4) ... [2018-10-26 23:03:27,607 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 23:03:27,614 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 23:03:27,615 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-10-26 23:03:27,616 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 23:03:27,616 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2018-10-26 23:03:27,616 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-10-26 23:03:27,627 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 138 nodes and edges [2018-10-26 23:03:27,628 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 77 nodes and edges [2018-10-26 23:03:27,628 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2018-10-26 23:03:27,629 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-26 23:03:27,659 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\old(x) == x || !(one_atan == ~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0)))) || !(huge_atan == ~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30))) [2018-10-26 23:03:27,659 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\old(x) == x || !(one_atan == ~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0)))) || !(huge_atan == ~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30))) [2018-10-26 23:03:27,745 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c0ab2d3d-c5c7-434b-b25f-918c8de3ac28/bin-2019/utaipan/witness.graphml [2018-10-26 23:03:27,745 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 23:03:27,746 INFO L168 Benchmark]: Toolchain (without parser) took 80275.56 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 240.6 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -188.7 MB). Peak memory consumption was 51.9 MB. Max. memory is 11.5 GB. [2018-10-26 23:03:27,747 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:03:27,749 INFO L168 Benchmark]: CACSL2BoogieTranslator took 332.98 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-10-26 23:03:27,749 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.54 ms. Allocated memory is still 1.0 GB. Free memory was 937.1 MB in the beginning and 931.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 23:03:27,750 INFO L168 Benchmark]: Boogie Preprocessor took 91.94 ms. Allocated memory is still 1.0 GB. Free memory was 931.7 MB in the beginning and 926.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 23:03:27,751 INFO L168 Benchmark]: RCFGBuilder took 10591.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 199.2 MB). Free memory was 926.4 MB in the beginning and 1.1 GB in the end (delta: -191.8 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. [2018-10-26 23:03:27,752 INFO L168 Benchmark]: TraceAbstraction took 69027.63 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 41.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -37.3 MB). Peak memory consumption was 4.1 MB. Max. memory is 11.5 GB. [2018-10-26 23:03:27,752 INFO L168 Benchmark]: Witness Printer took 146.53 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-10-26 23:03:27,754 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 332.98 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 80.54 ms. Allocated memory is still 1.0 GB. Free memory was 937.1 MB in the beginning and 931.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 91.94 ms. Allocated memory is still 1.0 GB. Free memory was 931.7 MB in the beginning and 926.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 10591.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 199.2 MB). Free memory was 926.4 MB in the beginning and 1.1 GB in the end (delta: -191.8 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 69027.63 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 41.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -37.3 MB). Peak memory consumption was 4.1 MB. Max. memory is 11.5 GB. * Witness Printer took 146.53 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 142]: 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: 57]: Loop Invariant [2018-10-26 23:03:27,768 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:03:27,769 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:03:27,769 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:03:27,769 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:03:27,770 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:03:27,770 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:03:27,770 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:03:27,770 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE Derived loop invariant: (\old(x) == x || !(one_atan == ~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0)))) || !(huge_atan == ~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30))) - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 120]: Loop Invariant [2018-10-26 23:03:27,771 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:03:27,771 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:03:27,771 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:03:27,771 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:03:27,771 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:03:27,772 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:03:27,772 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:03:27,772 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE Derived loop invariant: (\old(x) == x || !(one_atan == ~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0)))) || !(huge_atan == ~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 54 locations, 1 error locations. SAFE Result, 68.9s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 60.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 301 SDtfs, 235 SDslu, 1087 SDs, 0 SdLazy, 359 SolverSat, 28 SolverUnsat, 11 SolverUnknown, 0 SolverNotchecked, 55.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 183 GetRequests, 125 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 7 MinimizatonAttempts, 5 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 25 PreInvPairs, 30 NumberOfFragments, 170 HoareAnnotationTreeSize, 25 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 245 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 4.1s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 160 ConstructedInterpolants, 24 QuantifiedInterpolants, 25449 SizeOfPredicates, 52 NumberOfNonLiveVariables, 1093 ConjunctsInSsa, 69 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...