./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/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 4c9cffacfd3e6caa748d273206d3a84e636fe987 .................................................................................................................................................................................................................................................................................................................................. 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_a0086cc1-7448-48ec-93aa-9a6447438310/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/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 4c9cffacfd3e6caa748d273206d3a84e636fe987 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-03 07:28:22,842 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 07:28:22,843 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 07:28:22,849 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 07:28:22,850 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 07:28:22,850 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 07:28:22,851 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 07:28:22,852 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 07:28:22,852 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 07:28:22,853 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 07:28:22,853 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 07:28:22,853 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 07:28:22,854 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 07:28:22,855 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 07:28:22,855 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 07:28:22,856 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 07:28:22,856 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 07:28:22,857 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 07:28:22,858 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 07:28:22,858 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 07:28:22,859 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 07:28:22,859 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 07:28:22,861 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 07:28:22,861 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 07:28:22,861 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 07:28:22,861 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 07:28:22,862 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 07:28:22,862 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 07:28:22,863 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 07:28:22,863 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 07:28:22,864 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 07:28:22,864 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 07:28:22,864 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 07:28:22,864 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 07:28:22,865 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 07:28:22,865 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 07:28:22,865 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-03 07:28:22,872 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 07:28:22,872 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 07:28:22,873 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 07:28:22,873 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 07:28:22,873 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 07:28:22,873 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 07:28:22,873 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 07:28:22,873 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 07:28:22,874 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 07:28:22,874 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 07:28:22,874 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 07:28:22,874 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 07:28:22,874 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 07:28:22,874 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 07:28:22,875 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 07:28:22,875 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 07:28:22,875 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 07:28:22,875 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 07:28:22,875 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 07:28:22,875 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 07:28:22,875 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 07:28:22,875 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 07:28:22,876 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 07:28:22,876 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 07:28:22,876 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 07:28:22,876 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 07:28:22,876 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 07:28:22,876 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 07:28:22,876 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 07:28:22,876 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 07:28:22,877 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 07:28:22,877 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 07:28:22,877 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 07:28:22,877 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 07:28:22,877 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 07:28:22,877 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 07:28:22,877 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_a0086cc1-7448-48ec-93aa-9a6447438310/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 -> 4c9cffacfd3e6caa748d273206d3a84e636fe987 [2018-12-03 07:28:22,894 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 07:28:22,901 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 07:28:22,903 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 07:28:22,904 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 07:28:22,904 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 07:28:22,905 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0832b_true-unreach-call.c [2018-12-03 07:28:22,940 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/bin-2019/utaipan/data/ef4889bbd/e9c944fd8d294f3bb0f1576b128658bd/FLAGce69e192a [2018-12-03 07:28:23,234 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 07:28:23,234 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/sv-benchmarks/c/float-newlib/float_req_bl_0832b_true-unreach-call.c [2018-12-03 07:28:23,239 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/bin-2019/utaipan/data/ef4889bbd/e9c944fd8d294f3bb0f1576b128658bd/FLAGce69e192a [2018-12-03 07:28:23,248 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/bin-2019/utaipan/data/ef4889bbd/e9c944fd8d294f3bb0f1576b128658bd [2018-12-03 07:28:23,250 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 07:28:23,251 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 07:28:23,251 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 07:28:23,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 07:28:23,254 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 07:28:23,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 07:28:23" (1/1) ... [2018-12-03 07:28:23,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d57af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:23, skipping insertion in model container [2018-12-03 07:28:23,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 07:28:23" (1/1) ... [2018-12-03 07:28:23,260 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 07:28:23,272 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 07:28:23,378 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 07:28:23,381 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 07:28:23,402 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 07:28:23,445 INFO L195 MainTranslator]: Completed translation [2018-12-03 07:28:23,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:23 WrapperNode [2018-12-03 07:28:23,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 07:28:23,446 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 07:28:23,446 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 07:28:23,446 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 07:28:23,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:23" (1/1) ... [2018-12-03 07:28:23,457 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:23" (1/1) ... [2018-12-03 07:28:23,461 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 07:28:23,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 07:28:23,462 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 07:28:23,462 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 07:28:23,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:23" (1/1) ... [2018-12-03 07:28:23,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:23" (1/1) ... [2018-12-03 07:28:23,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:23" (1/1) ... [2018-12-03 07:28:23,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:23" (1/1) ... [2018-12-03 07:28:23,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:23" (1/1) ... [2018-12-03 07:28:23,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:23" (1/1) ... [2018-12-03 07:28:23,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:23" (1/1) ... [2018-12-03 07:28:23,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 07:28:23,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 07:28:23,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 07:28:23,482 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 07:28:23,483 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 07:28:23,514 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2018-12-03 07:28:23,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2018-12-03 07:28:23,514 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 07:28:23,514 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 07:28:23,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-03 07:28:23,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-03 07:28:23,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 07:28:23,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 07:28:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-03 07:28:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 07:28:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 07:28:23,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 07:28:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-03 07:28:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2018-12-03 07:28:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-03 07:28:23,702 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 07:28:23,703 INFO L280 CfgBuilder]: Removed 10 assue(true) statements. [2018-12-03 07:28:23,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:28:23 BoogieIcfgContainer [2018-12-03 07:28:23,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 07:28:23,704 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 07:28:23,704 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 07:28:23,707 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 07:28:23,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 07:28:23" (1/3) ... [2018-12-03 07:28:23,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15dac1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 07:28:23, skipping insertion in model container [2018-12-03 07:28:23,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:23" (2/3) ... [2018-12-03 07:28:23,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15dac1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 07:28:23, skipping insertion in model container [2018-12-03 07:28:23,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:28:23" (3/3) ... [2018-12-03 07:28:23,709 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b_true-unreach-call.c [2018-12-03 07:28:23,714 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 07:28:23,719 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 07:28:23,729 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 07:28:23,746 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 07:28:23,746 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 07:28:23,746 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 07:28:23,746 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 07:28:23,746 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 07:28:23,747 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 07:28:23,747 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 07:28:23,747 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 07:28:23,756 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-12-03 07:28:23,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-03 07:28:23,760 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:28:23,760 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:28:23,762 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:28:23,765 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:28:23,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1027521113, now seen corresponding path program 1 times [2018-12-03 07:28:23,766 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:28:23,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:28:23,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:28:23,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:28:23,793 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:28:23,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:28:23,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:28:23,859 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:28:23,860 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 07:28:23,860 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:28:23,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-03 07:28:23,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-03 07:28:23,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 07:28:23,871 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2018-12-03 07:28:23,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:28:23,884 INFO L93 Difference]: Finished difference Result 82 states and 124 transitions. [2018-12-03 07:28:23,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-03 07:28:23,884 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-12-03 07:28:23,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:28:23,890 INFO L225 Difference]: With dead ends: 82 [2018-12-03 07:28:23,891 INFO L226 Difference]: Without dead ends: 41 [2018-12-03 07:28:23,892 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 07:28:23,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-03 07:28:23,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-12-03 07:28:23,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-03 07:28:23,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2018-12-03 07:28:23,914 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 16 [2018-12-03 07:28:23,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:28:23,914 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2018-12-03 07:28:23,914 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-03 07:28:23,914 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2018-12-03 07:28:23,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-03 07:28:23,915 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:28:23,915 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:28:23,915 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:28:23,915 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:28:23,915 INFO L82 PathProgramCache]: Analyzing trace with hash 900277844, now seen corresponding path program 1 times [2018-12-03 07:28:23,915 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:28:23,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:28:23,916 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:28:23,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:28:23,916 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:28:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 07:28:23,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 07:28:23,970 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-03 07:28:23,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 07:28:23 BoogieIcfgContainer [2018-12-03 07:28:23,992 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 07:28:23,992 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 07:28:23,992 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 07:28:23,992 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 07:28:23,992 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:28:23" (3/4) ... [2018-12-03 07:28:23,995 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-03 07:28:23,995 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 07:28:23,995 INFO L168 Benchmark]: Toolchain (without parser) took 744.67 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 950.8 MB in the beginning and 1.0 GB in the end (delta: -75.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. [2018-12-03 07:28:23,996 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 07:28:23,996 INFO L168 Benchmark]: CACSL2BoogieTranslator took 194.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -145.2 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-12-03 07:28:23,997 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. [2018-12-03 07:28:23,997 INFO L168 Benchmark]: Boogie Preprocessor took 20.55 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. [2018-12-03 07:28:23,997 INFO L168 Benchmark]: RCFGBuilder took 220.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2018-12-03 07:28:23,998 INFO L168 Benchmark]: TraceAbstraction took 288.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 35.9 MB). Peak memory consumption was 35.9 MB. Max. memory is 11.5 GB. [2018-12-03 07:28:23,998 INFO L168 Benchmark]: Witness Printer took 2.69 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 07:28:24,000 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 194.64 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -145.2 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.55 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 220.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 288.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 35.9 MB). Peak memory consumption was 35.9 MB. Max. memory is 11.5 GB. * Witness Printer took 2.69 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 121, overapproximation of someUnaryDOUBLEoperation at line 19, overapproximation of bitwiseAnd at line 46, overapproximation of someUnaryFLOAToperation at line 117, overapproximation of someBinaryArithmeticFLOAToperation at line 50. Possible FailurePath: [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; VAL [\old(halF_exp)=19, \old(halF_exp)=31, \old(huge_exp)=14, \old(invln2_exp)=15, \old(ln2HI_exp)=9, \old(ln2HI_exp)=23, \old(ln2LO_exp)=30, \old(ln2LO_exp)=25, \old(one_exp)=32, \old(P1_exp)=18, \old(P2_exp)=21, \old(P3_exp)=27, \old(P4_exp)=29, \old(P5_exp)=28, \old(twom100_exp)=10, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L117] float x = -0.0f; VAL [halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L118] CALL, EXPR __ieee754_expf(x) VAL [\old(x)=16, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L37] float y, hi, lo, c, t; [L38] __int32_t k = 0, xsb, sx; [L39] __uint32_t hx; VAL [\old(x)=16, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=16] [L42] ieee_float_shape_type gf_u; [L43] gf_u.value = (x) [L44] EXPR gf_u.word [L44] (sx) = gf_u.word [L46] xsb = (sx >> 31) & 1 [L47] hx = sx & 0x7fffffff VAL [\old(x)=16, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=3, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=16] [L49] COND TRUE ((hx) > 0x7f800000L) [L50] return x + x; VAL [\old(x)=16, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, hx=2139095041, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, sx=3, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=16] [L118] RET, EXPR __ieee754_expf(x) VAL [__ieee754_expf(x)=13, halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=16] [L118] float res = __ieee754_expf(x); [L121] COND TRUE res != 1.0f VAL [halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, res=13, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=16] [L122] __VERIFIER_error() VAL [halF_exp={1:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={22:0}, ln2LO_exp={26:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, res=13, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=16] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 45 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 55 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=45occurred 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, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 225 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-03 07:28:25,291 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 07:28:25,292 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 07:28:25,298 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 07:28:25,298 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 07:28:25,299 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 07:28:25,299 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 07:28:25,300 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 07:28:25,301 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 07:28:25,301 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 07:28:25,301 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 07:28:25,302 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 07:28:25,302 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 07:28:25,302 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 07:28:25,303 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 07:28:25,303 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 07:28:25,304 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 07:28:25,305 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 07:28:25,305 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 07:28:25,306 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 07:28:25,307 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 07:28:25,307 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 07:28:25,308 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 07:28:25,308 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 07:28:25,308 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 07:28:25,309 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 07:28:25,309 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 07:28:25,310 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 07:28:25,310 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 07:28:25,311 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 07:28:25,311 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 07:28:25,311 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 07:28:25,311 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 07:28:25,311 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 07:28:25,312 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 07:28:25,312 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 07:28:25,312 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-03 07:28:25,320 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 07:28:25,320 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 07:28:25,320 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 07:28:25,320 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 07:28:25,320 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 07:28:25,320 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 07:28:25,320 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 07:28:25,321 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 07:28:25,321 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 07:28:25,321 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 07:28:25,321 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 07:28:25,321 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 07:28:25,321 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 07:28:25,321 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 07:28:25,321 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 07:28:25,322 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 07:28:25,322 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 07:28:25,322 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-03 07:28:25,322 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-03 07:28:25,322 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 07:28:25,322 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 07:28:25,322 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-03 07:28:25,322 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 07:28:25,322 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 07:28:25,322 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 07:28:25,322 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 07:28:25,323 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 07:28:25,323 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 07:28:25,323 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 07:28:25,323 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 07:28:25,323 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 07:28:25,323 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-03 07:28:25,323 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 07:28:25,323 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-03 07:28:25,323 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-03 07:28:25,323 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_a0086cc1-7448-48ec-93aa-9a6447438310/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 -> 4c9cffacfd3e6caa748d273206d3a84e636fe987 [2018-12-03 07:28:25,342 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 07:28:25,351 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 07:28:25,354 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 07:28:25,355 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 07:28:25,356 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 07:28:25,356 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0832b_true-unreach-call.c [2018-12-03 07:28:25,401 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/bin-2019/utaipan/data/914a6ea09/ca39ebb3dbb14ca58e560c1d0ed2d513/FLAG3e185758b [2018-12-03 07:28:25,823 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 07:28:25,824 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/sv-benchmarks/c/float-newlib/float_req_bl_0832b_true-unreach-call.c [2018-12-03 07:28:25,829 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/bin-2019/utaipan/data/914a6ea09/ca39ebb3dbb14ca58e560c1d0ed2d513/FLAG3e185758b [2018-12-03 07:28:25,837 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/bin-2019/utaipan/data/914a6ea09/ca39ebb3dbb14ca58e560c1d0ed2d513 [2018-12-03 07:28:25,839 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 07:28:25,840 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 07:28:25,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 07:28:25,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 07:28:25,843 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 07:28:25,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 07:28:25" (1/1) ... [2018-12-03 07:28:25,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b97ddff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:25, skipping insertion in model container [2018-12-03 07:28:25,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 07:28:25" (1/1) ... [2018-12-03 07:28:25,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 07:28:25,863 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 07:28:25,988 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 07:28:25,995 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 07:28:26,026 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 07:28:26,044 INFO L195 MainTranslator]: Completed translation [2018-12-03 07:28:26,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:26 WrapperNode [2018-12-03 07:28:26,045 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 07:28:26,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 07:28:26,045 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 07:28:26,045 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 07:28:26,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:26" (1/1) ... [2018-12-03 07:28:26,059 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:26" (1/1) ... [2018-12-03 07:28:26,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 07:28:26,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 07:28:26,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 07:28:26,065 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 07:28:26,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:26" (1/1) ... [2018-12-03 07:28:26,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:26" (1/1) ... [2018-12-03 07:28:26,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:26" (1/1) ... [2018-12-03 07:28:26,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:26" (1/1) ... [2018-12-03 07:28:26,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:26" (1/1) ... [2018-12-03 07:28:26,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:26" (1/1) ... [2018-12-03 07:28:26,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:26" (1/1) ... [2018-12-03 07:28:26,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 07:28:26,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 07:28:26,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 07:28:26,120 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 07:28:26,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 07:28:26,149 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2018-12-03 07:28:26,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2018-12-03 07:28:26,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2018-12-03 07:28:26,150 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 07:28:26,150 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 07:28:26,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-03 07:28:26,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 07:28:26,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 07:28:26,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 07:28:26,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-03 07:28:26,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 07:28:26,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 07:28:26,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-03 07:28:26,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-03 07:28:26,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-03 07:28:26,248 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 07:28:34,399 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 07:28:34,420 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 07:28:34,488 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-03 07:28:34,500 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 07:28:34,500 INFO L280 CfgBuilder]: Removed 10 assue(true) statements. [2018-12-03 07:28:34,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:28:34 BoogieIcfgContainer [2018-12-03 07:28:34,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 07:28:34,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 07:28:34,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 07:28:34,502 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 07:28:34,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 07:28:25" (1/3) ... [2018-12-03 07:28:34,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da23487 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 07:28:34, skipping insertion in model container [2018-12-03 07:28:34,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:26" (2/3) ... [2018-12-03 07:28:34,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da23487 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 07:28:34, skipping insertion in model container [2018-12-03 07:28:34,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:28:34" (3/3) ... [2018-12-03 07:28:34,504 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b_true-unreach-call.c [2018-12-03 07:28:34,509 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 07:28:34,514 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 07:28:34,522 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 07:28:34,540 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-03 07:28:34,541 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 07:28:34,541 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 07:28:34,541 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 07:28:34,541 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 07:28:34,541 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 07:28:34,541 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 07:28:34,541 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 07:28:34,542 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 07:28:34,552 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-12-03 07:28:34,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-03 07:28:34,556 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:28:34,556 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:28:34,558 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:28:34,561 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:28:34,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1027521113, now seen corresponding path program 1 times [2018-12-03 07:28:34,564 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 07:28:34,564 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-03 07:28:34,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:28:34,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:28:34,652 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:28:34,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:28:34,664 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 07:28:34,673 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:28:34,673 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 07:28:34,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-03 07:28:34,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-03 07:28:34,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 07:28:34,684 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2018-12-03 07:28:34,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:28:34,699 INFO L93 Difference]: Finished difference Result 82 states and 124 transitions. [2018-12-03 07:28:34,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-03 07:28:34,700 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-12-03 07:28:34,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:28:34,707 INFO L225 Difference]: With dead ends: 82 [2018-12-03 07:28:34,707 INFO L226 Difference]: Without dead ends: 41 [2018-12-03 07:28:34,709 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-03 07:28:34,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-03 07:28:34,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-12-03 07:28:34,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-03 07:28:34,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 51 transitions. [2018-12-03 07:28:34,733 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 51 transitions. Word has length 16 [2018-12-03 07:28:34,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:28:34,734 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 51 transitions. [2018-12-03 07:28:34,734 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-03 07:28:34,734 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2018-12-03 07:28:34,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-03 07:28:34,734 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:28:34,734 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:28:34,735 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:28:34,735 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:28:34,735 INFO L82 PathProgramCache]: Analyzing trace with hash 900277844, now seen corresponding path program 1 times [2018-12-03 07:28:34,735 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 07:28:34,735 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-03 07:28:34,739 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:28:34,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:28:34,815 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:28:34,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:28:34,899 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 07:28:34,908 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:28:34,908 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 07:28:34,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 07:28:34,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 07:28:34,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-03 07:28:34,909 INFO L87 Difference]: Start difference. First operand 41 states and 51 transitions. Second operand 7 states. [2018-12-03 07:28:46,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:28:46,197 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2018-12-03 07:28:46,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-03 07:28:46,256 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-12-03 07:28:46,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:28:46,258 INFO L225 Difference]: With dead ends: 50 [2018-12-03 07:28:46,258 INFO L226 Difference]: Without dead ends: 44 [2018-12-03 07:28:46,259 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-03 07:28:46,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-03 07:28:46,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. [2018-12-03 07:28:46,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-03 07:28:46,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions. [2018-12-03 07:28:46,263 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 17 [2018-12-03 07:28:46,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:28:46,263 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 50 transitions. [2018-12-03 07:28:46,263 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 07:28:46,263 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions. [2018-12-03 07:28:46,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-03 07:28:46,264 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:28:46,264 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:28:46,264 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:28:46,264 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:28:46,264 INFO L82 PathProgramCache]: Analyzing trace with hash -211300720, now seen corresponding path program 1 times [2018-12-03 07:28:46,265 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 07:28:46,265 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-03 07:28:46,268 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:28:46,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:28:46,361 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:28:46,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:28:46,399 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 07:28:46,408 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:28:46,408 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-03 07:28:46,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 07:28:46,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 07:28:46,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-03 07:28:46,409 INFO L87 Difference]: Start difference. First operand 41 states and 50 transitions. Second operand 6 states. [2018-12-03 07:28:55,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:28:55,781 INFO L93 Difference]: Finished difference Result 52 states and 60 transitions. [2018-12-03 07:28:55,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-03 07:28:55,844 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-12-03 07:28:55,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:28:55,845 INFO L225 Difference]: With dead ends: 52 [2018-12-03 07:28:55,845 INFO L226 Difference]: Without dead ends: 46 [2018-12-03 07:28:55,845 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-03 07:28:55,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-12-03 07:28:55,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 41. [2018-12-03 07:28:55,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-03 07:28:55,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2018-12-03 07:28:55,849 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 19 [2018-12-03 07:28:55,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:28:55,849 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2018-12-03 07:28:55,849 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 07:28:55,849 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2018-12-03 07:28:55,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-03 07:28:55,850 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:28:55,850 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:28:55,850 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:28:55,850 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:28:55,850 INFO L82 PathProgramCache]: Analyzing trace with hash -95067259, now seen corresponding path program 1 times [2018-12-03 07:28:55,851 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 07:28:55,851 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-03 07:28:55,854 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:28:55,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:28:55,934 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:28:56,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:28:56,001 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 07:28:56,009 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:28:56,009 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 07:28:56,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 07:28:56,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 07:28:56,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-03 07:28:56,010 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 7 states. [2018-12-03 07:29:05,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:29:05,545 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2018-12-03 07:29:05,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-03 07:29:05,605 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-12-03 07:29:05,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:29:05,605 INFO L225 Difference]: With dead ends: 52 [2018-12-03 07:29:05,605 INFO L226 Difference]: Without dead ends: 44 [2018-12-03 07:29:05,606 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-03 07:29:05,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-03 07:29:05,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 39. [2018-12-03 07:29:05,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-12-03 07:29:05,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2018-12-03 07:29:05,609 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 20 [2018-12-03 07:29:05,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:29:05,609 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2018-12-03 07:29:05,609 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 07:29:05,610 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2018-12-03 07:29:05,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-03 07:29:05,610 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:29:05,610 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:29:05,610 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:29:05,610 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:29:05,610 INFO L82 PathProgramCache]: Analyzing trace with hash 589145278, now seen corresponding path program 1 times [2018-12-03 07:29:05,611 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 07:29:05,611 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/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 [2018-12-03 07:29:05,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:29:05,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:29:05,708 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:29:05,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:29:05,775 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 07:29:05,786 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:29:05,787 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 07:29:05,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 07:29:05,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 07:29:05,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-03 07:29:05,787 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand 7 states. [2018-12-03 07:29:16,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:29:16,942 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2018-12-03 07:29:16,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-03 07:29:16,943 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-12-03 07:29:16,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:29:16,943 INFO L225 Difference]: With dead ends: 48 [2018-12-03 07:29:16,944 INFO L226 Difference]: Without dead ends: 42 [2018-12-03 07:29:16,944 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-03 07:29:16,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-03 07:29:16,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39. [2018-12-03 07:29:16,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-12-03 07:29:16,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2018-12-03 07:29:16,946 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 44 transitions. Word has length 20 [2018-12-03 07:29:16,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:29:16,947 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 44 transitions. [2018-12-03 07:29:16,947 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 07:29:16,947 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2018-12-03 07:29:16,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-03 07:29:16,947 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:29:16,947 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:29:16,947 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:29:16,947 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:29:16,948 INFO L82 PathProgramCache]: Analyzing trace with hash 901419296, now seen corresponding path program 1 times [2018-12-03 07:29:16,948 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 07:29:16,948 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/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 [2018-12-03 07:29:16,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:29:17,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:29:17,046 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:29:17,704 WARN L180 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-12-03 07:29:17,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:29:17,803 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 07:29:17,811 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:29:17,811 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-03 07:29:17,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-03 07:29:17,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-03 07:29:17,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-12-03 07:29:17,812 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. Second operand 8 states. [2018-12-03 07:29:21,239 WARN L180 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-12-03 07:29:28,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:29:28,037 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2018-12-03 07:29:28,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-03 07:29:28,038 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-12-03 07:29:28,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:29:28,038 INFO L225 Difference]: With dead ends: 48 [2018-12-03 07:29:28,038 INFO L226 Difference]: Without dead ends: 42 [2018-12-03 07:29:28,039 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-12-03 07:29:28,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-03 07:29:28,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39. [2018-12-03 07:29:28,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-12-03 07:29:28,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2018-12-03 07:29:28,042 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 23 [2018-12-03 07:29:28,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:29:28,043 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2018-12-03 07:29:28,043 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-03 07:29:28,043 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2018-12-03 07:29:28,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-03 07:29:28,044 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:29:28,044 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:29:28,044 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:29:28,044 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:29:28,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1676277967, now seen corresponding path program 1 times [2018-12-03 07:29:28,045 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 07:29:28,045 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/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 [2018-12-03 07:29:28,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:29:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:29:28,738 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:29:28,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:29:28,815 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 07:29:28,828 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:29:28,828 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 07:29:28,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 07:29:28,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 07:29:28,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-03 07:29:28,829 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand 7 states. [2018-12-03 07:29:42,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:29:42,281 INFO L93 Difference]: Finished difference Result 61 states and 66 transitions. [2018-12-03 07:29:42,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-03 07:29:42,343 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-12-03 07:29:42,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:29:42,344 INFO L225 Difference]: With dead ends: 61 [2018-12-03 07:29:42,344 INFO L226 Difference]: Without dead ends: 40 [2018-12-03 07:29:42,344 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-03 07:29:42,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-12-03 07:29:42,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2018-12-03 07:29:42,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-12-03 07:29:42,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2018-12-03 07:29:42,347 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 24 [2018-12-03 07:29:42,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:29:42,348 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2018-12-03 07:29:42,348 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 07:29:42,348 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2018-12-03 07:29:42,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-03 07:29:42,348 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:29:42,348 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:29:42,348 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:29:42,349 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:29:42,349 INFO L82 PathProgramCache]: Analyzing trace with hash -779018628, now seen corresponding path program 1 times [2018-12-03 07:29:42,349 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 07:29:42,349 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/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 [2018-12-03 07:29:42,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:29:43,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:29:43,066 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:29:43,558 WARN L180 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-12-03 07:29:43,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:29:43,562 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 07:29:43,576 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:29:43,577 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-03 07:29:43,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 07:29:43,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 07:29:43,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-03 07:29:43,577 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 6 states. [2018-12-03 07:29:46,644 WARN L180 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-12-03 07:29:53,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:29:53,255 INFO L93 Difference]: Finished difference Result 47 states and 49 transitions. [2018-12-03 07:29:53,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-03 07:29:53,256 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-12-03 07:29:53,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:29:53,256 INFO L225 Difference]: With dead ends: 47 [2018-12-03 07:29:53,256 INFO L226 Difference]: Without dead ends: 41 [2018-12-03 07:29:53,257 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-03 07:29:53,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-12-03 07:29:53,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-12-03 07:29:53,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-12-03 07:29:53,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2018-12-03 07:29:53,259 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 25 [2018-12-03 07:29:53,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:29:53,260 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2018-12-03 07:29:53,260 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 07:29:53,260 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2018-12-03 07:29:53,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-03 07:29:53,260 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:29:53,260 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:29:53,260 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:29:53,261 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:29:53,261 INFO L82 PathProgramCache]: Analyzing trace with hash -2043508857, now seen corresponding path program 1 times [2018-12-03 07:29:53,261 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 07:29:53,261 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/bin-2019/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-12-03 07:29:53,270 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:29:54,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:29:54,193 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:29:54,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:29:54,258 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 07:29:54,276 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:29:54,276 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-03 07:29:54,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-03 07:29:54,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-03 07:29:54,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-03 07:29:54,276 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 7 states. [2018-12-03 07:30:06,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:30:06,516 INFO L93 Difference]: Finished difference Result 58 states and 60 transitions. [2018-12-03 07:30:06,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-03 07:30:06,578 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2018-12-03 07:30:06,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:30:06,579 INFO L225 Difference]: With dead ends: 58 [2018-12-03 07:30:06,579 INFO L226 Difference]: Without dead ends: 37 [2018-12-03 07:30:06,579 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-12-03 07:30:06,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-12-03 07:30:06,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-12-03 07:30:06,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-12-03 07:30:06,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 37 transitions. [2018-12-03 07:30:06,582 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 37 transitions. Word has length 25 [2018-12-03 07:30:06,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:30:06,582 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 37 transitions. [2018-12-03 07:30:06,582 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-03 07:30:06,582 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 37 transitions. [2018-12-03 07:30:06,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-03 07:30:06,583 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:30:06,583 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:30:06,583 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:30:06,583 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:30:06,583 INFO L82 PathProgramCache]: Analyzing trace with hash 1556919915, now seen corresponding path program 1 times [2018-12-03 07:30:06,583 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 07:30:06,583 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/bin-2019/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2018-12-03 07:30:06,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:30:07,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:30:07,321 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:30:07,960 WARN L180 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-12-03 07:30:07,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:30:07,965 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 07:30:07,979 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:30:07,979 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-03 07:30:07,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 07:30:07,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 07:30:07,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-03 07:30:07,979 INFO L87 Difference]: Start difference. First operand 37 states and 37 transitions. Second operand 6 states. [2018-12-03 07:30:08,825 WARN L180 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-12-03 07:30:13,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:30:13,117 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-12-03 07:30:13,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-03 07:30:13,184 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-12-03 07:30:13,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:30:13,184 INFO L225 Difference]: With dead ends: 37 [2018-12-03 07:30:13,185 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 07:30:13,185 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-03 07:30:13,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 07:30:13,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 07:30:13,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 07:30:13,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 07:30:13,185 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-12-03 07:30:13,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:30:13,186 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 07:30:13,186 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 07:30:13,186 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 07:30:13,186 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 07:30:13,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 07:30:13,464 WARN L180 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2018-12-03 07:30:13,820 WARN L180 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 28 [2018-12-03 07:30:13,821 INFO L448 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-12-03 07:30:13,821 INFO L448 ceAbstractionStarter]: For program point L52-2(line 52) no Hoare annotation was computed. [2018-12-03 07:30:13,821 INFO L448 ceAbstractionStarter]: For program point L102(lines 102 106) no Hoare annotation was computed. [2018-12-03 07:30:13,821 INFO L448 ceAbstractionStarter]: For program point L102-1(lines 95 108) no Hoare annotation was computed. [2018-12-03 07:30:13,821 INFO L448 ceAbstractionStarter]: For program point L102-2(lines 102 106) no Hoare annotation was computed. [2018-12-03 07:30:13,821 INFO L448 ceAbstractionStarter]: For program point L53(lines 53 54) no Hoare annotation was computed. [2018-12-03 07:30:13,821 INFO L448 ceAbstractionStarter]: For program point L78(lines 78 81) no Hoare annotation was computed. [2018-12-03 07:30:13,821 INFO L448 ceAbstractionStarter]: For program point L70(lines 70 73) no Hoare annotation was computed. [2018-12-03 07:30:13,821 INFO L448 ceAbstractionStarter]: For program point L70-2(lines 58 73) no Hoare annotation was computed. [2018-12-03 07:30:13,822 INFO L448 ceAbstractionStarter]: For program point __ieee754_expfEXIT(lines 36 109) no Hoare annotation was computed. [2018-12-03 07:30:13,822 INFO L448 ceAbstractionStarter]: For program point L71(lines 71 72) no Hoare annotation was computed. [2018-12-03 07:30:13,822 INFO L451 ceAbstractionStarter]: At program point __ieee754_expfENTRY(lines 36 109) the Hoare annotation is: true [2018-12-03 07:30:13,822 INFO L448 ceAbstractionStarter]: For program point L55(lines 55 56) no Hoare annotation was computed. [2018-12-03 07:30:13,822 INFO L448 ceAbstractionStarter]: For program point __ieee754_expfFINAL(lines 36 109) no Hoare annotation was computed. [2018-12-03 07:30:13,822 INFO L448 ceAbstractionStarter]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2018-12-03 07:30:13,822 INFO L444 ceAbstractionStarter]: At program point L97-2(lines 97 101) the Hoare annotation is: (or (not (= ~one_exp~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)))) (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_exp~0)) (exists ((__ieee754_expf_~sx~0 (_ BitVec 32))) (and (not (bvult (bvand (_ bv2147483647 32) __ieee754_expf_~sx~0) (_ bv830472192 32))) (= (fp ((_ extract 31 31) __ieee754_expf_~sx~0) ((_ extract 30 23) __ieee754_expf_~sx~0) ((_ extract 22 0) __ieee754_expf_~sx~0)) |__ieee754_expf_#in~x|)))) [2018-12-03 07:30:13,822 INFO L448 ceAbstractionStarter]: For program point L89(lines 89 93) no Hoare annotation was computed. [2018-12-03 07:30:13,822 INFO L448 ceAbstractionStarter]: For program point L89-1(lines 82 95) no Hoare annotation was computed. [2018-12-03 07:30:13,822 INFO L448 ceAbstractionStarter]: For program point L89-2(lines 89 93) no Hoare annotation was computed. [2018-12-03 07:30:13,822 INFO L448 ceAbstractionStarter]: For program point L82(lines 82 108) no Hoare annotation was computed. [2018-12-03 07:30:13,822 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2018-12-03 07:30:13,822 INFO L448 ceAbstractionStarter]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2018-12-03 07:30:13,822 INFO L444 ceAbstractionStarter]: At program point L41-2(lines 41 45) the Hoare annotation is: (or (not (= ~one_exp~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)))) (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_exp~0)) (= |__ieee754_expf_#in~x| __ieee754_expf_~x)) [2018-12-03 07:30:13,822 INFO L448 ceAbstractionStarter]: For program point L41-3(lines 41 45) no Hoare annotation was computed. [2018-12-03 07:30:13,822 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 73) no Hoare annotation was computed. [2018-12-03 07:30:13,822 INFO L448 ceAbstractionStarter]: For program point L59(lines 59 68) no Hoare annotation was computed. [2018-12-03 07:30:13,822 INFO L448 ceAbstractionStarter]: For program point L59-2(lines 59 68) no Hoare annotation was computed. [2018-12-03 07:30:13,823 INFO L448 ceAbstractionStarter]: For program point L51(lines 51 52) no Hoare annotation was computed. [2018-12-03 07:30:13,823 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2018-12-03 07:30:13,823 INFO L444 ceAbstractionStarter]: At program point L84-2(lines 84 88) the Hoare annotation is: (or (not (= ~one_exp~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)))) (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_exp~0)) (exists ((__ieee754_expf_~sx~0 (_ BitVec 32))) (and (not (bvult (bvand (_ bv2147483647 32) __ieee754_expf_~sx~0) (_ bv830472192 32))) (= (fp ((_ extract 31 31) __ieee754_expf_~sx~0) ((_ extract 30 23) __ieee754_expf_~sx~0) ((_ extract 22 0) __ieee754_expf_~sx~0)) |__ieee754_expf_#in~x|)))) [2018-12-03 07:30:13,823 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-03 07:30:13,823 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-03 07:30:13,823 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-03 07:30:13,823 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-03 07:30:13,823 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) ~one_exp~0) (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_exp~0)) [2018-12-03 07:30:13,823 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-03 07:30:13,823 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-03 07:30:13,823 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 111 127) the Hoare annotation is: true [2018-12-03 07:30:13,823 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 111 127) no Hoare annotation was computed. [2018-12-03 07:30:13,823 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 122) no Hoare annotation was computed. [2018-12-03 07:30:13,823 INFO L448 ceAbstractionStarter]: For program point L122(line 122) no Hoare annotation was computed. [2018-12-03 07:30:13,824 INFO L448 ceAbstractionStarter]: For program point L121(lines 121 124) no Hoare annotation was computed. [2018-12-03 07:30:13,824 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 111 127) no Hoare annotation was computed. [2018-12-03 07:30:13,824 INFO L444 ceAbstractionStarter]: At program point L118(line 118) the Hoare annotation is: (or (not (= ~one_exp~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)))) (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_exp~0)) (= main_~x~0 (fp.neg (_ +zero 8 24)))) [2018-12-03 07:30:13,824 INFO L448 ceAbstractionStarter]: For program point L118-1(line 118) no Hoare annotation was computed. [2018-12-03 07:30:13,830 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,830 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,831 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,831 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,831 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 07:30:13,831 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 07:30:13,831 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 07:30:13,831 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 07:30:13,834 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,834 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,834 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,834 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,835 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 07:30:13,835 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 07:30:13,835 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 07:30:13,835 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 07:30:13,836 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,836 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,836 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,836 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,837 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,837 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,837 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,837 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,837 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,837 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,838 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,838 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,838 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 07:30:13,838 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 07:30:13,838 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 07:30:13,838 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 07:30:13,839 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,839 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,839 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,839 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,839 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 07:30:13,839 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 07:30:13,839 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 07:30:13,840 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 07:30:13,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 07:30:13 BoogieIcfgContainer [2018-12-03 07:30:13,841 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 07:30:13,841 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 07:30:13,841 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 07:30:13,841 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 07:30:13,842 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:28:34" (3/4) ... [2018-12-03 07:30:13,844 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-03 07:30:13,848 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_expf [2018-12-03 07:30:13,848 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-03 07:30:13,848 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-03 07:30:13,851 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2018-12-03 07:30:13,851 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-12-03 07:30:13,851 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-03 07:30:13,851 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-03 07:30:13,852 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-03 07:30:13,867 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_exp)) || \old(x) == x [2018-12-03 07:30:13,868 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_exp)) || (\exists __ieee754_expf_~sx~0 : bv32 :: !~bvult32(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 830472192bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) [2018-12-03 07:30:13,868 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_exp)) || (\exists __ieee754_expf_~sx~0 : bv32 :: !~bvult32(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 830472192bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) [2018-12-03 07:30:13,880 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a0086cc1-7448-48ec-93aa-9a6447438310/bin-2019/utaipan/witness.graphml [2018-12-03 07:30:13,880 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 07:30:13,881 INFO L168 Benchmark]: Toolchain (without parser) took 108041.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -81.5 MB). Peak memory consumption was 43.8 MB. Max. memory is 11.5 GB. [2018-12-03 07:30:13,882 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 07:30:13,882 INFO L168 Benchmark]: CACSL2BoogieTranslator took 204.21 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-03 07:30:13,882 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.96 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 07:30:13,882 INFO L168 Benchmark]: Boogie Preprocessor took 54.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-12-03 07:30:13,883 INFO L168 Benchmark]: RCFGBuilder took 8380.72 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: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. [2018-12-03 07:30:13,883 INFO L168 Benchmark]: TraceAbstraction took 99340.44 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: -3.1 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 50.8 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. [2018-12-03 07:30:13,883 INFO L168 Benchmark]: Witness Printer took 39.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 11.5 GB. [2018-12-03 07:30:13,885 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 204.21 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.96 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 8380.72 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: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 99340.44 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: -3.1 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 50.8 MB). Peak memory consumption was 47.6 MB. Max. memory is 11.5 GB. * Witness Printer took 39.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation 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 - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 122]: 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: 97]: Loop Invariant [2018-12-03 07:30:13,888 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,888 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,888 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,888 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,888 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 07:30:13,889 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 07:30:13,889 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 07:30:13,889 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 07:30:13,889 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,889 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,890 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,890 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,890 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 07:30:13,890 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 07:30:13,890 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 07:30:13,890 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] Derived loop invariant: (!(one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_exp)) || (\exists __ieee754_expf_~sx~0 : bv32 :: !~bvult32(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 830472192bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) - InvariantResult [Line: 41]: Loop Invariant [2018-12-03 07:30:13,891 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,891 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,891 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,891 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,891 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,892 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,892 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,892 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (!(one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_exp)) || \old(x) == x - InvariantResult [Line: 84]: Loop Invariant [2018-12-03 07:30:13,892 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,892 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,892 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,893 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,893 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 07:30:13,893 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 07:30:13,893 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 07:30:13,893 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 07:30:13,893 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,894 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,894 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,894 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-03 07:30:13,894 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 07:30:13,894 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 07:30:13,894 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-12-03 07:30:13,894 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] Derived loop invariant: (!(one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_exp)) || (\exists __ieee754_expf_~sx~0 : bv32 :: !~bvult32(~bvand32(2147483647bv32, __ieee754_expf_~sx~0), 830472192bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 45 locations, 1 error locations. SAFE Result, 99.2s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 92.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.6s HoareAnnotationTime, HoareTripleCheckerStatistics: 352 SDtfs, 387 SDslu, 1066 SDs, 0 SdLazy, 393 SolverSat, 2 SolverUnsat, 33 SolverUnknown, 0 SolverNotchecked, 87.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 236 GetRequests, 164 SyntacticMatches, 3 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred 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, 10 MinimizatonAttempts, 20 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 16 NumberOfFragments, 128 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 168 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 220 NumberOfCodeBlocks, 220 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 210 ConstructedInterpolants, 38 QuantifiedInterpolants, 46147 SizeOfPredicates, 35 NumberOfNonLiveVariables, 1194 ConjunctsInSsa, 68 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...