./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1052c_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/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 93969ab48cbc6136b5ad0701aa11c46dc35b2390 .................................................................................................................................................................................................................................................................................................................. 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_469d4a42-1edb-4f27-a767-a43d3349f1d2/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/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 93969ab48cbc6136b5ad0701aa11c46dc35b2390 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 13:10:29,839 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:10:29,841 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:10:29,849 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:10:29,850 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:10:29,850 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:10:29,852 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:10:29,853 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:10:29,855 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:10:29,855 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:10:29,856 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:10:29,856 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:10:29,857 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:10:29,857 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:10:29,859 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:10:29,859 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:10:29,860 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:10:29,861 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:10:29,863 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:10:29,864 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:10:29,865 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:10:29,865 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:10:29,868 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:10:29,868 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:10:29,868 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:10:29,869 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:10:29,870 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:10:29,870 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:10:29,871 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:10:29,872 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:10:29,872 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:10:29,872 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:10:29,872 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:10:29,873 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:10:29,873 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:10:29,874 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:10:29,875 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 13:10:29,885 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:10:29,885 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:10:29,886 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:10:29,886 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 13:10:29,887 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 13:10:29,887 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 13:10:29,887 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 13:10:29,887 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 13:10:29,887 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 13:10:29,887 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 13:10:29,887 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 13:10:29,887 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 13:10:29,887 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 13:10:29,888 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:10:29,888 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:10:29,888 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:10:29,888 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:10:29,888 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:10:29,889 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:10:29,889 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:10:29,889 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:10:29,889 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:10:29,889 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:10:29,889 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:10:29,889 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:10:29,889 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:10:29,890 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:10:29,891 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:10:29,891 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 13:10:29,891 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:10:29,891 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:10:29,892 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:10:29,892 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:10:29,892 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 13:10:29,892 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:10:29,892 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 13:10:29,892 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 13:10:29,892 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_469d4a42-1edb-4f27-a767-a43d3349f1d2/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 -> 93969ab48cbc6136b5ad0701aa11c46dc35b2390 [2018-11-18 13:10:29,914 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:10:29,922 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:10:29,924 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:10:29,925 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:10:29,925 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:10:29,925 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1052c_true-unreach-call.c [2018-11-18 13:10:29,957 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/bin-2019/utaipan/data/f3981349d/eedcae2779ac45959989300749edf3b6/FLAG5cada4ae4 [2018-11-18 13:10:30,365 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:10:30,365 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/sv-benchmarks/c/float-newlib/float_req_bl_1052c_true-unreach-call.c [2018-11-18 13:10:30,369 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/bin-2019/utaipan/data/f3981349d/eedcae2779ac45959989300749edf3b6/FLAG5cada4ae4 [2018-11-18 13:10:30,377 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/bin-2019/utaipan/data/f3981349d/eedcae2779ac45959989300749edf3b6 [2018-11-18 13:10:30,378 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:10:30,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:10:30,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:10:30,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:10:30,383 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:10:30,383 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:10:30" (1/1) ... [2018-11-18 13:10:30,385 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e791d46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:10:30, skipping insertion in model container [2018-11-18 13:10:30,385 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:10:30" (1/1) ... [2018-11-18 13:10:30,392 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:10:30,405 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:10:30,516 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:10:30,518 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:10:30,533 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:10:30,546 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:10:30,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:10:30 WrapperNode [2018-11-18 13:10:30,546 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:10:30,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:10:30,547 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:10:30,547 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:10:30,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:10:30" (1/1) ... [2018-11-18 13:10:30,557 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:10:30" (1/1) ... [2018-11-18 13:10:30,561 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:10:30,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:10:30,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:10:30,561 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:10:30,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:10:30" (1/1) ... [2018-11-18 13:10:30,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:10:30" (1/1) ... [2018-11-18 13:10:30,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:10:30" (1/1) ... [2018-11-18 13:10:30,604 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:10:30" (1/1) ... [2018-11-18 13:10:30,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:10:30" (1/1) ... [2018-11-18 13:10:30,616 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:10:30" (1/1) ... [2018-11-18 13:10:30,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:10:30" (1/1) ... [2018-11-18 13:10:30,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:10:30,619 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:10:30,619 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:10:30,619 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:10:30,620 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:10:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:10:30,650 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 13:10:30,650 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 13:10:30,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 13:10:30,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 13:10:30,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 13:10:30,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 13:10:30,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 13:10:30,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 13:10:30,650 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-11-18 13:10:30,650 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-11-18 13:10:30,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:10:30,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:10:30,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 13:10:30,651 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-18 13:10:30,651 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-18 13:10:30,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 13:10:30,810 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:10:30,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:10:30 BoogieIcfgContainer [2018-11-18 13:10:30,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:10:30,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 13:10:30,811 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 13:10:30,813 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 13:10:30,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:10:30" (1/3) ... [2018-11-18 13:10:30,813 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d83291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:10:30, skipping insertion in model container [2018-11-18 13:10:30,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:10:30" (2/3) ... [2018-11-18 13:10:30,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d83291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:10:30, skipping insertion in model container [2018-11-18 13:10:30,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:10:30" (3/3) ... [2018-11-18 13:10:30,815 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052c_true-unreach-call.c [2018-11-18 13:10:30,820 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 13:10:30,824 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 13:10:30,832 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 13:10:30,849 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 13:10:30,849 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 13:10:30,849 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 13:10:30,850 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:10:30,850 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:10:30,850 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 13:10:30,850 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:10:30,850 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 13:10:30,860 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-11-18 13:10:30,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 13:10:30,863 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:10:30,864 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:10:30,866 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:10:30,869 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:10:30,869 INFO L82 PathProgramCache]: Analyzing trace with hash -664054432, now seen corresponding path program 1 times [2018-11-18 13:10:30,871 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:10:30,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:10:30,906 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:10:30,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:10:30,906 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:10:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:10:30,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:10:30,954 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:10:30,954 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 13:10:30,955 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:10:30,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 13:10:30,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 13:10:30,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 13:10:30,969 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-11-18 13:10:30,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:10:30,983 INFO L93 Difference]: Finished difference Result 78 states and 111 transitions. [2018-11-18 13:10:30,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 13:10:30,984 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-18 13:10:30,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:10:30,990 INFO L225 Difference]: With dead ends: 78 [2018-11-18 13:10:30,991 INFO L226 Difference]: Without dead ends: 39 [2018-11-18 13:10:30,994 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 13:10:31,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-18 13:10:31,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-11-18 13:10:31,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-18 13:10:31,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2018-11-18 13:10:31,020 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 18 [2018-11-18 13:10:31,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:10:31,020 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-11-18 13:10:31,020 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 13:10:31,020 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2018-11-18 13:10:31,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 13:10:31,021 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:10:31,021 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:10:31,022 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:10:31,022 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:10:31,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1930962372, now seen corresponding path program 1 times [2018-11-18 13:10:31,022 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:10:31,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:10:31,023 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:10:31,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:10:31,023 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:10:31,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:10:31,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:10:31,087 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 13:10:31,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 01:10:31 BoogieIcfgContainer [2018-11-18 13:10:31,104 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 13:10:31,104 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:10:31,104 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:10:31,105 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:10:31,105 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:10:30" (3/4) ... [2018-11-18 13:10:31,107 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 13:10:31,107 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:10:31,108 INFO L168 Benchmark]: Toolchain (without parser) took 729.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -130.8 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2018-11-18 13:10:31,109 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:10:31,109 INFO L168 Benchmark]: CACSL2BoogieTranslator took 166.52 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 945.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:10:31,110 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.30 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:10:31,110 INFO L168 Benchmark]: Boogie Preprocessor took 57.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -205.0 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-18 13:10:31,110 INFO L168 Benchmark]: RCFGBuilder took 191.59 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: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2018-11-18 13:10:31,111 INFO L168 Benchmark]: TraceAbstraction took 293.07 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: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 11.5 GB. [2018-11-18 13:10:31,111 INFO L168 Benchmark]: Witness Printer took 2.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:10:31,114 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 166.52 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 945.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.30 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 57.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 945.7 MB in the beginning and 1.2 GB in the end (delta: -205.0 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 191.59 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: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 293.07 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: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 80]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 79, overapproximation of someUnaryFLOAToperation at line 75, overapproximation of bitwiseAnd at line 21. Possible FailurePath: [L11] static const float huge_floor = 1.0e30; VAL [\old(huge_floor)=6442450945, huge_floor=1000000000000000000000000000000] [L75] float x = -0.0f; VAL [huge_floor=1000000000000000000000000000000] [L76] CALL, EXPR floor_float(x) VAL [\old(x)=6442450949, huge_floor=1000000000000000000000000000000] [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [\old(x)=6442450949, huge_floor=1000000000000000000000000000000, x=6442450949] [L17] FCALL ieee_float_shape_type gf_u; [L18] FCALL gf_u.value = (x) [L19] EXPR, FCALL gf_u.word [L19] (i0) = gf_u.word [L20] COND FALSE !(0) VAL [\old(x)=6442450949, huge_floor=1000000000000000000000000000000, i0=2147483647, x=6442450949] [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [\old(x)=6442450949, huge_floor=1000000000000000000000000000000, i=-18014397460905984, i0=2147483647, j0=2147483646, x=6442450949] [L23] COND FALSE !(j0 < 23) VAL [\old(x)=6442450949, huge_floor=1000000000000000000000000000000, i=-18014397460905984, i0=2147483647, j0=2147483646, x=6442450949] [L43] COND FALSE !(!((ix) < 0x7f800000L)) [L46] RET return x; VAL [\old(x)=6442450949, \result=6442450949, huge_floor=1000000000000000000000000000000, i=-18014397460905984, i0=2147483647, j0=2147483646, x=6442450949] [L76] EXPR floor_float(x) VAL [floor_float(x)=6442450949, huge_floor=1000000000000000000000000000000, x=6442450949] [L76] float res = floor_float(x); [L79] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [huge_floor=1000000000000000000000000000000, res=6442450949, res == -0.0f && __signbit_float(res) == 1=0, x=6442450949] [L79] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L80] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000, res=6442450949, x=6442450949] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 52 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 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 0.1.23-5842f4b [2018-11-18 13:10:32,524 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:10:32,525 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:10:32,533 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:10:32,533 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:10:32,534 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:10:32,535 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:10:32,536 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:10:32,537 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:10:32,537 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:10:32,538 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:10:32,538 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:10:32,539 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:10:32,539 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:10:32,540 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:10:32,540 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:10:32,541 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:10:32,542 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:10:32,543 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:10:32,544 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:10:32,545 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:10:32,546 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:10:32,547 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:10:32,547 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:10:32,547 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:10:32,548 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:10:32,549 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:10:32,549 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:10:32,550 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:10:32,550 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:10:32,550 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:10:32,551 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:10:32,551 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:10:32,551 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:10:32,552 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:10:32,552 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:10:32,552 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 13:10:32,562 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:10:32,562 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:10:32,563 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:10:32,563 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 13:10:32,563 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 13:10:32,563 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 13:10:32,564 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 13:10:32,564 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 13:10:32,564 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 13:10:32,564 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 13:10:32,564 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:10:32,565 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:10:32,565 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:10:32,565 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:10:32,565 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:10:32,565 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:10:32,565 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:10:32,565 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 13:10:32,565 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 13:10:32,566 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:10:32,566 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:10:32,566 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:10:32,566 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:10:32,566 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:10:32,566 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:10:32,566 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:10:32,566 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 13:10:32,567 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:10:32,567 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:10:32,567 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:10:32,567 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:10:32,567 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 13:10:32,567 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:10:32,567 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 13:10:32,568 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 13:10:32,568 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_469d4a42-1edb-4f27-a767-a43d3349f1d2/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 -> 93969ab48cbc6136b5ad0701aa11c46dc35b2390 [2018-11-18 13:10:32,596 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:10:32,605 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:10:32,607 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:10:32,608 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:10:32,609 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:10:32,609 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1052c_true-unreach-call.c [2018-11-18 13:10:32,650 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/bin-2019/utaipan/data/c5b4630b2/e790306a7d8d418885ab94ae21307f8f/FLAG8dc76a636 [2018-11-18 13:10:33,050 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:10:33,050 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/sv-benchmarks/c/float-newlib/float_req_bl_1052c_true-unreach-call.c [2018-11-18 13:10:33,055 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/bin-2019/utaipan/data/c5b4630b2/e790306a7d8d418885ab94ae21307f8f/FLAG8dc76a636 [2018-11-18 13:10:33,063 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/bin-2019/utaipan/data/c5b4630b2/e790306a7d8d418885ab94ae21307f8f [2018-11-18 13:10:33,065 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:10:33,066 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:10:33,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:10:33,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:10:33,069 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:10:33,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:10:33" (1/1) ... [2018-11-18 13:10:33,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27a4379e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:10:33, skipping insertion in model container [2018-11-18 13:10:33,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:10:33" (1/1) ... [2018-11-18 13:10:33,080 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:10:33,096 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:10:33,221 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:10:33,225 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:10:33,244 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:10:33,258 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:10:33,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:10:33 WrapperNode [2018-11-18 13:10:33,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:10:33,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:10:33,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:10:33,259 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:10:33,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:10:33" (1/1) ... [2018-11-18 13:10:33,272 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:10:33" (1/1) ... [2018-11-18 13:10:33,277 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:10:33,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:10:33,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:10:33,278 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:10:33,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:10:33" (1/1) ... [2018-11-18 13:10:33,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:10:33" (1/1) ... [2018-11-18 13:10:33,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:10:33" (1/1) ... [2018-11-18 13:10:33,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:10:33" (1/1) ... [2018-11-18 13:10:33,297 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:10:33" (1/1) ... [2018-11-18 13:10:33,301 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:10:33" (1/1) ... [2018-11-18 13:10:33,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:10:33" (1/1) ... [2018-11-18 13:10:33,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:10:33,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:10:33,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:10:33,307 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:10:33,307 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:10:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:10:33,385 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 13:10:33,385 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 13:10:33,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 13:10:33,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 13:10:33,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 13:10:33,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 13:10:33,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 13:10:33,386 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-11-18 13:10:33,386 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-11-18 13:10:33,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:10:33,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:10:33,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 13:10:33,386 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-18 13:10:33,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-18 13:10:33,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 13:10:33,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 13:10:33,858 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:10:33,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:10:33 BoogieIcfgContainer [2018-11-18 13:10:33,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:10:33,859 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 13:10:33,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 13:10:33,861 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 13:10:33,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:10:33" (1/3) ... [2018-11-18 13:10:33,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38fa07c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:10:33, skipping insertion in model container [2018-11-18 13:10:33,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:10:33" (2/3) ... [2018-11-18 13:10:33,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38fa07c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:10:33, skipping insertion in model container [2018-11-18 13:10:33,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:10:33" (3/3) ... [2018-11-18 13:10:33,864 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052c_true-unreach-call.c [2018-11-18 13:10:33,871 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 13:10:33,877 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 13:10:33,887 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 13:10:33,903 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 13:10:33,904 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 13:10:33,904 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 13:10:33,904 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 13:10:33,904 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:10:33,904 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:10:33,904 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 13:10:33,904 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:10:33,904 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 13:10:33,914 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-11-18 13:10:33,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 13:10:33,917 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:10:33,918 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:10:33,919 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:10:33,922 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:10:33,922 INFO L82 PathProgramCache]: Analyzing trace with hash -664054432, now seen corresponding path program 1 times [2018-11-18 13:10:33,924 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 13:10:33,925 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-18 13:10:33,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:10:33,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:10:33,967 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:10:33,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:10:33,978 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:10:33,987 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:10:33,987 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 13:10:33,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 13:10:33,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 13:10:33,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 13:10:33,998 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-11-18 13:10:34,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:10:34,016 INFO L93 Difference]: Finished difference Result 78 states and 111 transitions. [2018-11-18 13:10:34,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 13:10:34,017 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-18 13:10:34,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:10:34,023 INFO L225 Difference]: With dead ends: 78 [2018-11-18 13:10:34,023 INFO L226 Difference]: Without dead ends: 39 [2018-11-18 13:10:34,026 INFO L604 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 [2018-11-18 13:10:34,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-18 13:10:34,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-11-18 13:10:34,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-18 13:10:34,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2018-11-18 13:10:34,051 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 18 [2018-11-18 13:10:34,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:10:34,051 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-11-18 13:10:34,051 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 13:10:34,051 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2018-11-18 13:10:34,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 13:10:34,052 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:10:34,052 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:10:34,052 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:10:34,053 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:10:34,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1930962372, now seen corresponding path program 1 times [2018-11-18 13:10:34,053 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 13:10:34,053 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-18 13:10:34,060 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:10:34,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:10:34,094 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:10:34,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:10:34,221 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:10:34,231 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:10:34,231 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 13:10:34,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 13:10:34,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 13:10:34,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 13:10:34,234 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand 7 states. [2018-11-18 13:10:35,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:10:35,129 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2018-11-18 13:10:35,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 13:10:35,130 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-11-18 13:10:35,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:10:35,132 INFO L225 Difference]: With dead ends: 60 [2018-11-18 13:10:35,132 INFO L226 Difference]: Without dead ends: 44 [2018-11-18 13:10:35,133 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 13:10:35,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-18 13:10:35,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2018-11-18 13:10:35,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-18 13:10:35,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2018-11-18 13:10:35,137 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 19 [2018-11-18 13:10:35,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:10:35,137 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2018-11-18 13:10:35,137 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 13:10:35,137 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2018-11-18 13:10:35,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 13:10:35,138 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:10:35,138 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:10:35,138 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:10:35,138 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:10:35,138 INFO L82 PathProgramCache]: Analyzing trace with hash -1376484092, now seen corresponding path program 1 times [2018-11-18 13:10:35,139 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 13:10:35,139 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-18 13:10:35,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:10:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:10:35,168 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:10:35,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:10:35,230 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:10:35,236 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:10:35,236 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 13:10:35,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 13:10:35,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 13:10:35,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 13:10:35,237 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand 7 states. [2018-11-18 13:10:35,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:10:35,912 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2018-11-18 13:10:35,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 13:10:35,913 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-11-18 13:10:35,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:10:35,913 INFO L225 Difference]: With dead ends: 67 [2018-11-18 13:10:35,914 INFO L226 Difference]: Without dead ends: 39 [2018-11-18 13:10:35,914 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-11-18 13:10:35,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-18 13:10:35,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2018-11-18 13:10:35,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-18 13:10:35,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-11-18 13:10:35,917 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 20 [2018-11-18 13:10:35,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:10:35,917 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-11-18 13:10:35,917 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 13:10:35,917 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-11-18 13:10:35,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 13:10:35,917 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:10:35,918 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:10:35,918 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:10:35,918 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:10:35,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1666542110, now seen corresponding path program 1 times [2018-11-18 13:10:35,918 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 13:10:35,918 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-18 13:10:35,921 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:10:35,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:10:35,963 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:10:37,045 WARN L180 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-18 13:10:37,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:10:37,049 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:10:37,061 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:10:37,061 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 13:10:37,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 13:10:37,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 13:10:37,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:10:37,062 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 6 states. [2018-11-18 13:10:37,760 WARN L180 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-18 13:10:38,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:10:38,031 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-11-18 13:10:38,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 13:10:38,035 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-11-18 13:10:38,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:10:38,035 INFO L225 Difference]: With dead ends: 52 [2018-11-18 13:10:38,035 INFO L226 Difference]: Without dead ends: 34 [2018-11-18 13:10:38,036 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 13:10:38,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-18 13:10:38,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-18 13:10:38,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-18 13:10:38,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2018-11-18 13:10:38,040 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 23 [2018-11-18 13:10:38,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:10:38,040 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2018-11-18 13:10:38,040 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 13:10:38,041 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-11-18 13:10:38,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 13:10:38,041 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:10:38,041 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] [2018-11-18 13:10:38,041 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:10:38,042 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:10:38,042 INFO L82 PathProgramCache]: Analyzing trace with hash 66145073, now seen corresponding path program 1 times [2018-11-18 13:10:38,042 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 13:10:38,042 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-18 13:10:38,045 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:10:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:10:38,089 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:10:38,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:10:38,128 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:10:38,135 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:10:38,135 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 13:10:38,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 13:10:38,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 13:10:38,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:10:38,136 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand 6 states. [2018-11-18 13:10:38,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:10:38,323 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2018-11-18 13:10:38,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 13:10:38,324 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-11-18 13:10:38,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:10:38,324 INFO L225 Difference]: With dead ends: 57 [2018-11-18 13:10:38,324 INFO L226 Difference]: Without dead ends: 39 [2018-11-18 13:10:38,325 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-11-18 13:10:38,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-18 13:10:38,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2018-11-18 13:10:38,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-18 13:10:38,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2018-11-18 13:10:38,329 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 24 [2018-11-18 13:10:38,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:10:38,330 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2018-11-18 13:10:38,330 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 13:10:38,330 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2018-11-18 13:10:38,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 13:10:38,330 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:10:38,331 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] [2018-11-18 13:10:38,331 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:10:38,331 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:10:38,331 INFO L82 PathProgramCache]: Analyzing trace with hash -173589656, now seen corresponding path program 1 times [2018-11-18 13:10:38,331 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 13:10:38,331 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-18 13:10:38,341 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:10:38,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:10:38,385 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:10:38,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:10:38,456 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:10:38,463 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:10:38,463 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 13:10:38,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 13:10:38,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 13:10:38,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 13:10:38,464 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 7 states. [2018-11-18 13:10:38,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:10:38,707 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2018-11-18 13:10:38,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 13:10:38,708 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-11-18 13:10:38,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:10:38,709 INFO L225 Difference]: With dead ends: 52 [2018-11-18 13:10:38,709 INFO L226 Difference]: Without dead ends: 34 [2018-11-18 13:10:38,709 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-18 13:10:38,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-18 13:10:38,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-18 13:10:38,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-18 13:10:38,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2018-11-18 13:10:38,712 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 25 [2018-11-18 13:10:38,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:10:38,713 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2018-11-18 13:10:38,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 13:10:38,713 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2018-11-18 13:10:38,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 13:10:38,713 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:10:38,713 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] [2018-11-18 13:10:38,714 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:10:38,714 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:10:38,714 INFO L82 PathProgramCache]: Analyzing trace with hash -566616666, now seen corresponding path program 1 times [2018-11-18 13:10:38,714 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 13:10:38,714 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/bin-2019/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-11-18 13:10:38,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:10:38,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:10:38,761 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:10:38,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:10:38,832 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:10:38,839 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:10:38,839 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 13:10:38,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 13:10:38,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 13:10:38,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-18 13:10:38,840 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 8 states. [2018-11-18 13:10:39,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:10:39,070 INFO L93 Difference]: Finished difference Result 37 states and 36 transitions. [2018-11-18 13:10:39,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 13:10:39,071 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2018-11-18 13:10:39,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:10:39,071 INFO L225 Difference]: With dead ends: 37 [2018-11-18 13:10:39,071 INFO L226 Difference]: Without dead ends: 34 [2018-11-18 13:10:39,072 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2018-11-18 13:10:39,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-18 13:10:39,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-18 13:10:39,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-18 13:10:39,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 33 transitions. [2018-11-18 13:10:39,075 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 33 transitions. Word has length 25 [2018-11-18 13:10:39,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:10:39,076 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 33 transitions. [2018-11-18 13:10:39,076 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 13:10:39,076 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 33 transitions. [2018-11-18 13:10:39,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-18 13:10:39,076 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:10:39,076 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] [2018-11-18 13:10:39,077 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:10:39,077 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:10:39,077 INFO L82 PathProgramCache]: Analyzing trace with hash -132351409, now seen corresponding path program 1 times [2018-11-18 13:10:39,077 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 13:10:39,077 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/bin-2019/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-11-18 13:10:39,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:10:39,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:10:39,128 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:10:39,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:10:39,269 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:10:39,276 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:10:39,276 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-11-18 13:10:39,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-18 13:10:39,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-18 13:10:39,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2018-11-18 13:10:39,277 INFO L87 Difference]: Start difference. First operand 34 states and 33 transitions. Second operand 13 states. [2018-11-18 13:10:39,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:10:39,711 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2018-11-18 13:10:39,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 13:10:39,712 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 33 [2018-11-18 13:10:39,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:10:39,712 INFO L225 Difference]: With dead ends: 34 [2018-11-18 13:10:39,712 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 13:10:39,712 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2018-11-18 13:10:39,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 13:10:39,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 13:10:39,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 13:10:39,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 13:10:39,713 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-11-18 13:10:39,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:10:39,713 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 13:10:39,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-18 13:10:39,713 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 13:10:39,713 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 13:10:39,716 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 13:10:39,866 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 13:10:39,866 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 13:10:39,866 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:10:39,867 INFO L425 ceAbstractionStarter]: For program point L23(lines 23 47) no Hoare annotation was computed. [2018-11-18 13:10:39,867 INFO L425 ceAbstractionStarter]: For program point L48(lines 48 52) no Hoare annotation was computed. [2018-11-18 13:10:39,867 INFO L425 ceAbstractionStarter]: For program point L48-2(lines 13 54) no Hoare annotation was computed. [2018-11-18 13:10:39,867 INFO L425 ceAbstractionStarter]: For program point L48-3(lines 48 52) no Hoare annotation was computed. [2018-11-18 13:10:39,867 INFO L425 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2018-11-18 13:10:39,867 INFO L425 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-11-18 13:10:39,867 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 41) no Hoare annotation was computed. [2018-11-18 13:10:39,867 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-11-18 13:10:39,867 INFO L421 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_floor~0)) (= |floor_float_#in~x| floor_float_~x)) [2018-11-18 13:10:39,867 INFO L425 ceAbstractionStarter]: For program point L16-4(lines 16 20) no Hoare annotation was computed. [2018-11-18 13:10:39,867 INFO L425 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-11-18 13:10:39,867 INFO L425 ceAbstractionStarter]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2018-11-18 13:10:39,867 INFO L425 ceAbstractionStarter]: For program point floor_floatEXIT(lines 13 54) no Hoare annotation was computed. [2018-11-18 13:10:39,867 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-11-18 13:10:39,867 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-11-18 13:10:39,867 INFO L425 ceAbstractionStarter]: For program point floor_floatFINAL(lines 13 54) no Hoare annotation was computed. [2018-11-18 13:10:39,867 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2018-11-18 13:10:39,867 INFO L428 ceAbstractionStarter]: At program point floor_floatENTRY(lines 13 54) the Hoare annotation is: true [2018-11-18 13:10:39,867 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 46) no Hoare annotation was computed. [2018-11-18 13:10:39,867 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:10:39,868 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_floor~0) [2018-11-18 13:10:39,868 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 13:10:39,868 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 13:10:39,868 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 68 85) the Hoare annotation is: true [2018-11-18 13:10:39,868 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 68 85) no Hoare annotation was computed. [2018-11-18 13:10:39,868 INFO L425 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2018-11-18 13:10:39,868 INFO L425 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-18 13:10:39,868 INFO L421 ceAbstractionStarter]: At program point L79-1(line 79) the Hoare annotation is: (or (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and |main_#t~short8| (= main_~res~0 .cse0) (= main_~x~0 .cse0))) (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_floor~0))) [2018-11-18 13:10:39,868 INFO L425 ceAbstractionStarter]: For program point L79-2(line 79) no Hoare annotation was computed. [2018-11-18 13:10:39,868 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 68 85) no Hoare annotation was computed. [2018-11-18 13:10:39,868 INFO L421 ceAbstractionStarter]: At program point L76(line 76) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_floor~0)) (= main_~x~0 (fp.neg (_ +zero 8 24)))) [2018-11-18 13:10:39,868 INFO L425 ceAbstractionStarter]: For program point L76-1(line 76) no Hoare annotation was computed. [2018-11-18 13:10:39,869 INFO L425 ceAbstractionStarter]: For program point L79-4(lines 79 82) no Hoare annotation was computed. [2018-11-18 13:10:39,869 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 80) no Hoare annotation was computed. [2018-11-18 13:10:39,869 INFO L425 ceAbstractionStarter]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2018-11-18 13:10:39,869 INFO L421 ceAbstractionStarter]: At program point L59-3(lines 59 63) the Hoare annotation is: (or (= |__signbit_float_#in~x| __signbit_float_~x) (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_floor~0))) [2018-11-18 13:10:39,869 INFO L425 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 56 66) no Hoare annotation was computed. [2018-11-18 13:10:39,869 INFO L425 ceAbstractionStarter]: For program point L59-4(lines 59 63) no Hoare annotation was computed. [2018-11-18 13:10:39,869 INFO L428 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 56 66) the Hoare annotation is: true [2018-11-18 13:10:39,869 INFO L425 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 56 66) no Hoare annotation was computed. [2018-11-18 13:10:39,874 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 13:10:39,874 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 13:10:39,877 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 13:10:39,877 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 13:10:39,877 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 13:10:39,877 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 13:10:39,878 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 13:10:39,878 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 13:10:39,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 01:10:39 BoogieIcfgContainer [2018-11-18 13:10:39,879 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 13:10:39,879 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:10:39,879 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:10:39,879 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:10:39,879 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:10:33" (3/4) ... [2018-11-18 13:10:39,881 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 13:10:39,885 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 13:10:39,885 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_float [2018-11-18 13:10:39,886 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 13:10:39,886 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-11-18 13:10:39,888 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-11-18 13:10:39,889 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-18 13:10:39,889 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 13:10:39,904 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_floor) || \old(x) == x [2018-11-18 13:10:39,904 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_floor) [2018-11-18 13:10:39,921 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_469d4a42-1edb-4f27-a767-a43d3349f1d2/bin-2019/utaipan/witness.graphml [2018-11-18 13:10:39,921 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:10:39,922 INFO L168 Benchmark]: Toolchain (without parser) took 6857.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 198.7 MB). Free memory was 950.8 MB in the beginning and 1.2 GB in the end (delta: -228.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:10:39,923 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:10:39,923 INFO L168 Benchmark]: CACSL2BoogieTranslator took 192.51 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 933.6 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. [2018-11-18 13:10:39,923 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.19 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:10:39,923 INFO L168 Benchmark]: Boogie Preprocessor took 28.60 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:10:39,924 INFO L168 Benchmark]: RCFGBuilder took 552.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -171.2 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-11-18 13:10:39,924 INFO L168 Benchmark]: TraceAbstraction took 6019.56 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 61.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -81.4 MB). Peak memory consumption was 307.2 MB. Max. memory is 11.5 GB. [2018-11-18 13:10:39,924 INFO L168 Benchmark]: Witness Printer took 42.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 11.5 GB. [2018-11-18 13:10:39,928 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 192.51 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 933.6 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.19 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.60 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 552.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -171.2 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6019.56 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 61.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -81.4 MB). Peak memory consumption was 307.2 MB. Max. memory is 11.5 GB. * Witness Printer took 42.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 80]: 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: 59]: Loop Invariant [2018-11-18 13:10:39,930 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 13:10:39,930 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 13:10:39,930 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 13:10:39,931 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: \old(x) == x || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_floor) - InvariantResult [Line: 16]: Loop Invariant [2018-11-18 13:10:39,931 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 13:10:39,931 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 13:10:39,931 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 13:10:39,931 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_floor) || \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. SAFE Result, 5.9s OverallTime, 8 OverallIterations, 1 TraceHistogramMax, 3.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 244 SDtfs, 279 SDslu, 775 SDs, 0 SdLazy, 444 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 207 GetRequests, 136 SyntacticMatches, 3 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 16 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 22 PreInvPairs, 25 NumberOfFragments, 68 HoareAnnotationTreeSize, 22 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 76 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 179 ConstructedInterpolants, 26 QuantifiedInterpolants, 27208 SizeOfPredicates, 32 NumberOfNonLiveVariables, 488 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...