./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0834_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0834_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/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 1ba8be438fdf209735f867af41e44939ec8afdc4 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0834_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/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 1ba8be438fdf209735f867af41e44939ec8afdc4 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 19:37:23,046 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 19:37:23,048 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 19:37:23,063 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 19:37:23,064 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 19:37:23,065 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 19:37:23,066 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 19:37:23,067 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 19:37:23,072 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 19:37:23,073 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 19:37:23,074 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 19:37:23,074 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 19:37:23,074 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 19:37:23,075 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 19:37:23,076 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 19:37:23,079 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 19:37:23,080 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 19:37:23,081 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 19:37:23,082 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 19:37:23,084 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 19:37:23,092 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 19:37:23,094 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 19:37:23,097 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 19:37:23,101 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 19:37:23,102 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 19:37:23,103 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 19:37:23,104 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 19:37:23,104 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 19:37:23,105 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 19:37:23,106 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 19:37:23,106 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 19:37:23,107 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 19:37:23,107 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 19:37:23,107 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 19:37:23,107 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 19:37:23,108 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 19:37:23,112 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 19:37:23,128 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 19:37:23,129 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 19:37:23,130 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 19:37:23,131 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 19:37:23,131 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 19:37:23,131 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 19:37:23,131 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 19:37:23,132 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 19:37:23,133 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 19:37:23,133 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 19:37:23,133 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 19:37:23,134 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 19:37:23,135 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 19:37:23,135 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 19:37:23,136 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 19:37:23,136 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 19:37:23,136 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 19:37:23,136 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 19:37:23,136 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 19:37:23,136 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 19:37:23,136 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 19:37:23,137 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 19:37:23,137 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 19:37:23,137 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 19:37:23,137 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 19:37:23,137 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 19:37:23,137 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:37:23,138 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 19:37:23,138 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 19:37:23,138 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 19:37:23,138 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 19:37:23,138 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 19:37:23,138 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 19:37:23,138 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 19:37:23,139 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_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/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 -> 1ba8be438fdf209735f867af41e44939ec8afdc4 [2018-10-26 19:37:23,173 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 19:37:23,184 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 19:37:23,187 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 19:37:23,189 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 19:37:23,189 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 19:37:23,190 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0834_true-unreach-call.c [2018-10-26 19:37:23,244 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/bin-2019/utaipan/data/719c96824/fb1261ca6e4a434da2d9996bf7f4abdb/FLAG38f002473 [2018-10-26 19:37:23,655 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 19:37:23,655 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/sv-benchmarks/c/float-newlib/float_req_bl_0834_true-unreach-call.c [2018-10-26 19:37:23,662 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/bin-2019/utaipan/data/719c96824/fb1261ca6e4a434da2d9996bf7f4abdb/FLAG38f002473 [2018-10-26 19:37:23,682 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/bin-2019/utaipan/data/719c96824/fb1261ca6e4a434da2d9996bf7f4abdb [2018-10-26 19:37:23,686 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 19:37:23,689 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 19:37:23,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 19:37:23,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 19:37:23,696 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 19:37:23,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:37:23" (1/1) ... [2018-10-26 19:37:23,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76cce7b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:23, skipping insertion in model container [2018-10-26 19:37:23,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:37:23" (1/1) ... [2018-10-26 19:37:23,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 19:37:23,739 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 19:37:23,928 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:37:23,934 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 19:37:23,974 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:37:23,994 INFO L193 MainTranslator]: Completed translation [2018-10-26 19:37:23,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:23 WrapperNode [2018-10-26 19:37:23,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 19:37:23,995 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 19:37:23,995 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 19:37:23,995 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 19:37:24,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:23" (1/1) ... [2018-10-26 19:37:24,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:23" (1/1) ... [2018-10-26 19:37:24,050 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 19:37:24,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 19:37:24,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 19:37:24,051 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 19:37:24,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:23" (1/1) ... [2018-10-26 19:37:24,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:23" (1/1) ... [2018-10-26 19:37:24,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:23" (1/1) ... [2018-10-26 19:37:24,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:23" (1/1) ... [2018-10-26 19:37:24,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:23" (1/1) ... [2018-10-26 19:37:24,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:23" (1/1) ... [2018-10-26 19:37:24,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:23" (1/1) ... [2018-10-26 19:37:24,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 19:37:24,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 19:37:24,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 19:37:24,162 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 19:37:24,163 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:37:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2018-10-26 19:37:24,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2018-10-26 19:37:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 19:37:24,211 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 19:37:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 19:37:24,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 19:37:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-10-26 19:37:24,211 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-10-26 19:37:24,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 19:37:24,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 19:37:24,890 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 19:37:24,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:37:24 BoogieIcfgContainer [2018-10-26 19:37:24,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 19:37:24,891 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 19:37:24,892 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 19:37:24,894 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 19:37:24,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 07:37:23" (1/3) ... [2018-10-26 19:37:24,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7515d68e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:37:24, skipping insertion in model container [2018-10-26 19:37:24,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:23" (2/3) ... [2018-10-26 19:37:24,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7515d68e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:37:24, skipping insertion in model container [2018-10-26 19:37:24,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:37:24" (3/3) ... [2018-10-26 19:37:24,897 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0834_true-unreach-call.c [2018-10-26 19:37:24,905 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 19:37:24,911 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 19:37:24,924 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 19:37:24,953 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 19:37:24,953 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 19:37:24,953 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 19:37:24,953 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 19:37:24,954 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 19:37:24,954 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 19:37:24,954 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 19:37:24,954 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 19:37:24,971 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2018-10-26 19:37:24,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-26 19:37:24,977 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:37:24,978 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:37:24,980 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:37:24,985 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:37:24,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1423235121, now seen corresponding path program 1 times [2018-10-26 19:37:24,988 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 19:37:25,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:37:25,029 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:37:25,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:37:25,029 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 19:37:25,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:37:25,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:37:25,146 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:37:25,146 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 19:37:25,147 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 19:37:25,151 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 19:37:25,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 19:37:25,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 19:37:25,166 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 2 states. [2018-10-26 19:37:25,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:37:25,190 INFO L93 Difference]: Finished difference Result 98 states and 145 transitions. [2018-10-26 19:37:25,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 19:37:25,191 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-10-26 19:37:25,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:37:25,201 INFO L225 Difference]: With dead ends: 98 [2018-10-26 19:37:25,202 INFO L226 Difference]: Without dead ends: 49 [2018-10-26 19:37:25,206 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 19:37:25,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-10-26 19:37:25,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-10-26 19:37:25,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-10-26 19:37:25,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 59 transitions. [2018-10-26 19:37:25,251 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 59 transitions. Word has length 23 [2018-10-26 19:37:25,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:37:25,252 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 59 transitions. [2018-10-26 19:37:25,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 19:37:25,252 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2018-10-26 19:37:25,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-26 19:37:25,255 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:37:25,255 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:37:25,255 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:37:25,255 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:37:25,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1420951393, now seen corresponding path program 1 times [2018-10-26 19:37:25,256 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 19:37:25,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:37:25,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:37:25,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:37:25,257 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 19:37:25,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 19:37:25,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 19:37:25,391 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 19:37:25,413 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:37:25,414 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:37:25,414 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:37:25,415 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:37:25,416 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 19:37:25,416 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:37:25,416 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 19:37:25,417 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:37:25,417 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 19:37:25,417 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:37:25,418 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 19:37:25,418 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:37:25,418 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 19:37:25,418 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:37:25,419 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 19:37:25,419 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:37:25,419 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 19:37:25,419 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:37:25,420 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 19:37:25,420 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:37:25,428 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 19:37:25,429 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:37:25,430 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 19:37:25,430 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:37:25,431 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:37:25,431 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:37:25,431 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 19:37:25,431 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 19:37:25,432 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:37:25,432 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:37:25,435 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 19:37:25,435 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 19:37:25,436 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:37:25,436 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:37:25,436 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 19:37:25,436 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 19:37:25,437 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:37:25,437 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 19:37:25,437 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 19:37:25,437 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 19:37:25,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 07:37:25 BoogieIcfgContainer [2018-10-26 19:37:25,475 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 19:37:25,475 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 19:37:25,475 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 19:37:25,475 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 19:37:25,476 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:37:24" (3/4) ... [2018-10-26 19:37:25,480 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-26 19:37:25,480 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 19:37:25,481 INFO L168 Benchmark]: Toolchain (without parser) took 1792.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 955.8 MB in the beginning and 1.1 GB in the end (delta: -120.7 MB). Peak memory consumption was 38.2 MB. Max. memory is 11.5 GB. [2018-10-26 19:37:25,483 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:37:25,483 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.44 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 942.2 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-10-26 19:37:25,484 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.50 ms. Allocated memory is still 1.0 GB. Free memory was 942.2 MB in the beginning and 939.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 19:37:25,484 INFO L168 Benchmark]: Boogie Preprocessor took 111.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 939.5 MB in the beginning and 1.2 GB in the end (delta: -215.8 MB). Peak memory consumption was 16.4 MB. Max. memory is 11.5 GB. [2018-10-26 19:37:25,485 INFO L168 Benchmark]: RCFGBuilder took 728.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. [2018-10-26 19:37:25,485 INFO L168 Benchmark]: TraceAbstraction took 583.22 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: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-10-26 19:37:25,486 INFO L168 Benchmark]: Witness Printer took 5.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:37:25,489 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 304.44 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 942.2 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.50 ms. Allocated memory is still 1.0 GB. Free memory was 942.2 MB in the beginning and 939.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 111.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 939.5 MB in the beginning and 1.2 GB in the end (delta: -215.8 MB). Peak memory consumption was 16.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 728.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 583.22 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: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Witness Printer took 5.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 135]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 19, overapproximation of someBinaryArithmeticFLOAToperation at line 50, overapproximation of bitwiseAnd at line 119. 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; [L15-L34] RET 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; [L15-L34] RET 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; [L15-L34] RET 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; [L15-L34] RET 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; [L15-L34] RET 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; [L15-L34] RET 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; [L15-L34] RET 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; [L15-L34] RET 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; [L15-L34] RET 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)=10737418270, \old(halF_exp)=10737418249, \old(huge_exp)=10737418259, \old(invln2_exp)=10737418243, \old(ln2HI_exp)=10737418266, \old(ln2HI_exp)=10737418241, \old(ln2LO_exp)=10737418269, \old(ln2LO_exp)=10737418251, \old(one_exp)=10737418257, \old(P1_exp)=10737418248, \old(P2_exp)=10737418250, \old(P3_exp)=10737418253, \old(P4_exp)=10737418256, \old(P5_exp)=10737418255, \old(twom100_exp)=10737418242, halF_exp={10737418246:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={10737418265:0}, ln2LO_exp={10737418245:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L130] float x = 1.0f / 0.0f; VAL [halF_exp={10737418246:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={10737418265:0}, ln2LO_exp={10737418245:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L131] CALL, EXPR __ieee754_expf(x) VAL [halF_exp={10737418246:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={10737418265:0}, ln2LO_exp={10737418245:0}, 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 [halF_exp={10737418246:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={10737418265:0}, ln2LO_exp={10737418245:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L42] CALL ieee_float_shape_type gf_u; [L42] RET ieee_float_shape_type gf_u; [L43] CALL gf_u.value = (x) [L43] RET gf_u.value = (x) [L44] CALL, EXPR gf_u.word [L44] RET, EXPR gf_u.word [L44] (sx) = gf_u.word [L44] RET (sx) = gf_u.word [L45] COND FALSE !(0) VAL [halF_exp={10737418246:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={10737418265:0}, ln2LO_exp={10737418245:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L46] xsb = (sx >> 31) & 1 [L47] hx = sx & 0x7fffffff VAL [halF_exp={10737418246:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={10737418265:0}, ln2LO_exp={10737418245:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L49] COND TRUE ((hx) > 0x7f800000L) [L50] RET return x + x; VAL [halF_exp={10737418246:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={10737418265:0}, ln2LO_exp={10737418245:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L131] EXPR __ieee754_expf(x) VAL [__ieee754_expf(x)=10737418260, halF_exp={10737418246:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={10737418265:0}, ln2LO_exp={10737418245:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=10737418261] [L131] float res = __ieee754_expf(x); [L134] CALL, EXPR isinf_float(res) VAL [halF_exp={10737418246:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={10737418265:0}, ln2LO_exp={10737418245:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L113] __int32_t ix; VAL [halF_exp={10737418246:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={10737418265:0}, ln2LO_exp={10737418245:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L115] CALL ieee_float_shape_type gf_u; [L115] RET ieee_float_shape_type gf_u; [L116] CALL gf_u.value = (x) [L116] RET gf_u.value = (x) [L117] CALL, EXPR gf_u.word [L117] RET, EXPR gf_u.word [L117] (ix) = gf_u.word [L117] RET (ix) = gf_u.word [L118] COND FALSE !(0) VAL [halF_exp={10737418246:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={10737418265:0}, ln2LO_exp={10737418245:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L119] ix &= 0x7fffffff [L120] RET return ((ix) == 0x7f800000L); VAL [halF_exp={10737418246:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={10737418265:0}, ln2LO_exp={10737418245:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L134] EXPR isinf_float(res) VAL [halF_exp={10737418246:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, isinf_float(res)=0, ln2HI_exp={10737418265:0}, ln2LO_exp={10737418245:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, res=10737418260, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=10737418261] [L134] COND TRUE !isinf_float(res) [L135] __VERIFIER_error() VAL [halF_exp={10737418246:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={10737418265:0}, ln2LO_exp={10737418245:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, res=10737418260, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=10737418261] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 53 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 63 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=53occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-10-26 19:37:27,515 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 19:37:27,518 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 19:37:27,529 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 19:37:27,530 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 19:37:27,530 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 19:37:27,532 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 19:37:27,535 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 19:37:27,536 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 19:37:27,537 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 19:37:27,538 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 19:37:27,538 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 19:37:27,539 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 19:37:27,540 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 19:37:27,542 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 19:37:27,543 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 19:37:27,543 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 19:37:27,545 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 19:37:27,547 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 19:37:27,548 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 19:37:27,557 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 19:37:27,558 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 19:37:27,561 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 19:37:27,562 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 19:37:27,562 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 19:37:27,563 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 19:37:27,564 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 19:37:27,568 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 19:37:27,569 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 19:37:27,570 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 19:37:27,570 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 19:37:27,570 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 19:37:27,570 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 19:37:27,571 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 19:37:27,571 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 19:37:27,572 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 19:37:27,572 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-26 19:37:27,591 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 19:37:27,591 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 19:37:27,592 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 19:37:27,592 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 19:37:27,592 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 19:37:27,593 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 19:37:27,593 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 19:37:27,593 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 19:37:27,593 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 19:37:27,594 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 19:37:27,594 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 19:37:27,594 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 19:37:27,594 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 19:37:27,594 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 19:37:27,594 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 19:37:27,594 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-26 19:37:27,595 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-26 19:37:27,595 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 19:37:27,595 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 19:37:27,595 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 19:37:27,595 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 19:37:27,595 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 19:37:27,595 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 19:37:27,596 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 19:37:27,596 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:37:27,596 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 19:37:27,596 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 19:37:27,599 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 19:37:27,599 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-26 19:37:27,599 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 19:37:27,599 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-26 19:37:27,599 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-26 19:37:27,600 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_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/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 -> 1ba8be438fdf209735f867af41e44939ec8afdc4 [2018-10-26 19:37:27,639 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 19:37:27,652 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 19:37:27,655 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 19:37:27,657 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 19:37:27,657 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 19:37:27,658 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0834_true-unreach-call.c [2018-10-26 19:37:27,709 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/bin-2019/utaipan/data/398f6a277/20af1d976b55413eacecc429aa35da3f/FLAG7d54728e1 [2018-10-26 19:37:28,129 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 19:37:28,130 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/sv-benchmarks/c/float-newlib/float_req_bl_0834_true-unreach-call.c [2018-10-26 19:37:28,138 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/bin-2019/utaipan/data/398f6a277/20af1d976b55413eacecc429aa35da3f/FLAG7d54728e1 [2018-10-26 19:37:28,156 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/bin-2019/utaipan/data/398f6a277/20af1d976b55413eacecc429aa35da3f [2018-10-26 19:37:28,161 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 19:37:28,162 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 19:37:28,163 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 19:37:28,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 19:37:28,171 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 19:37:28,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:37:28" (1/1) ... [2018-10-26 19:37:28,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9624b6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:28, skipping insertion in model container [2018-10-26 19:37:28,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:37:28" (1/1) ... [2018-10-26 19:37:28,185 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 19:37:28,211 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 19:37:28,448 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:37:28,459 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 19:37:28,516 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:37:28,551 INFO L193 MainTranslator]: Completed translation [2018-10-26 19:37:28,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:28 WrapperNode [2018-10-26 19:37:28,551 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 19:37:28,552 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 19:37:28,553 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 19:37:28,553 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 19:37:28,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:28" (1/1) ... [2018-10-26 19:37:28,577 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:28" (1/1) ... [2018-10-26 19:37:28,628 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 19:37:28,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 19:37:28,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 19:37:28,628 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 19:37:28,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:28" (1/1) ... [2018-10-26 19:37:28,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:28" (1/1) ... [2018-10-26 19:37:28,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:28" (1/1) ... [2018-10-26 19:37:28,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:28" (1/1) ... [2018-10-26 19:37:28,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:28" (1/1) ... [2018-10-26 19:37:28,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:28" (1/1) ... [2018-10-26 19:37:28,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:28" (1/1) ... [2018-10-26 19:37:28,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 19:37:28,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 19:37:28,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 19:37:28,671 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 19:37:28,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:37:28,808 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_expf [2018-10-26 19:37:28,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_expf [2018-10-26 19:37:28,809 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 19:37:28,809 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 19:37:28,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 19:37:28,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 19:37:28,809 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-10-26 19:37:28,809 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-10-26 19:37:28,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 19:37:28,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 19:37:29,058 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 19:37:38,043 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 19:37:38,117 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 19:37:38,295 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 19:37:38,316 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 19:37:38,453 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 19:37:38,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:37:38 BoogieIcfgContainer [2018-10-26 19:37:38,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 19:37:38,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 19:37:38,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 19:37:38,458 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 19:37:38,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 07:37:28" (1/3) ... [2018-10-26 19:37:38,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3441d1d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:37:38, skipping insertion in model container [2018-10-26 19:37:38,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:37:28" (2/3) ... [2018-10-26 19:37:38,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3441d1d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:37:38, skipping insertion in model container [2018-10-26 19:37:38,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:37:38" (3/3) ... [2018-10-26 19:37:38,461 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0834_true-unreach-call.c [2018-10-26 19:37:38,472 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 19:37:38,482 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 19:37:38,498 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 19:37:38,543 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 19:37:38,544 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 19:37:38,544 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 19:37:38,544 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 19:37:38,545 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 19:37:38,545 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 19:37:38,545 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 19:37:38,545 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 19:37:38,545 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 19:37:38,568 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2018-10-26 19:37:38,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-26 19:37:38,579 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:37:38,580 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:37:38,583 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:37:38,589 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:37:38,590 INFO L82 PathProgramCache]: Analyzing trace with hash -851030201, now seen corresponding path program 1 times [2018-10-26 19:37:38,594 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 19:37:38,595 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/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 [2018-10-26 19:37:38,604 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:37:38,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:37:38,747 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:37:38,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:37:38,764 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 19:37:38,783 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:37:38,784 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 19:37:38,787 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 19:37:38,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 19:37:38,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 19:37:38,805 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 2 states. [2018-10-26 19:37:38,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:37:38,831 INFO L93 Difference]: Finished difference Result 96 states and 143 transitions. [2018-10-26 19:37:38,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 19:37:38,833 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-10-26 19:37:38,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:37:38,844 INFO L225 Difference]: With dead ends: 96 [2018-10-26 19:37:38,844 INFO L226 Difference]: Without dead ends: 48 [2018-10-26 19:37:38,848 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 19:37:38,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-10-26 19:37:38,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-10-26 19:37:38,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-10-26 19:37:38,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 58 transitions. [2018-10-26 19:37:38,883 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 58 transitions. Word has length 22 [2018-10-26 19:37:38,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:37:38,883 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 58 transitions. [2018-10-26 19:37:38,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 19:37:38,884 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 58 transitions. [2018-10-26 19:37:38,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-26 19:37:38,885 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:37:38,885 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:37:38,886 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:37:38,886 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:37:38,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1863753171, now seen corresponding path program 1 times [2018-10-26 19:37:38,887 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 19:37:38,887 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-10-26 19:37:38,892 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:37:39,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:37:39,039 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:37:39,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:37:39,541 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 19:37:39,554 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:37:39,555 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 19:37:39,556 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 19:37:39,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 19:37:39,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 19:37:39,557 INFO L87 Difference]: Start difference. First operand 48 states and 58 transitions. Second operand 7 states. [2018-10-26 19:37:50,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:37:50,286 INFO L93 Difference]: Finished difference Result 66 states and 75 transitions. [2018-10-26 19:37:50,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 19:37:50,350 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-10-26 19:37:50,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:37:50,352 INFO L225 Difference]: With dead ends: 66 [2018-10-26 19:37:50,353 INFO L226 Difference]: Without dead ends: 53 [2018-10-26 19:37:50,354 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-10-26 19:37:50,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-10-26 19:37:50,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 48. [2018-10-26 19:37:50,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-10-26 19:37:50,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 57 transitions. [2018-10-26 19:37:50,361 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 57 transitions. Word has length 24 [2018-10-26 19:37:50,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:37:50,362 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 57 transitions. [2018-10-26 19:37:50,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 19:37:50,362 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2018-10-26 19:37:50,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-26 19:37:50,363 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:37:50,363 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:37:50,363 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:37:50,363 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:37:50,364 INFO L82 PathProgramCache]: Analyzing trace with hash -959245321, now seen corresponding path program 1 times [2018-10-26 19:37:50,364 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 19:37:50,364 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/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 [2018-10-26 19:37:50,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:37:50,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:37:50,603 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:37:50,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:37:50,876 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 19:37:50,893 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:37:50,894 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 19:37:50,894 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 19:37:50,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 19:37:50,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 19:37:50,895 INFO L87 Difference]: Start difference. First operand 48 states and 57 transitions. Second operand 7 states. [2018-10-26 19:38:00,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:38:00,698 INFO L93 Difference]: Finished difference Result 66 states and 74 transitions. [2018-10-26 19:38:00,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 19:38:00,771 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-10-26 19:38:00,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:38:00,772 INFO L225 Difference]: With dead ends: 66 [2018-10-26 19:38:00,772 INFO L226 Difference]: Without dead ends: 53 [2018-10-26 19:38:00,773 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-10-26 19:38:00,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-10-26 19:38:00,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 48. [2018-10-26 19:38:00,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-10-26 19:38:00,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2018-10-26 19:38:00,779 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 26 [2018-10-26 19:38:00,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:38:00,780 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2018-10-26 19:38:00,780 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 19:38:00,780 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2018-10-26 19:38:00,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-26 19:38:00,781 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:38:00,781 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:38:00,782 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:38:00,782 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:38:00,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1674639759, now seen corresponding path program 1 times [2018-10-26 19:38:00,782 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 19:38:00,783 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-10-26 19:38:00,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:38:00,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:38:00,953 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:38:01,520 WARN L179 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-10-26 19:38:04,800 WARN L179 SmtUtils]: Spent 829.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-10-26 19:38:09,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:38:09,739 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 19:38:09,751 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:38:09,751 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-26 19:38:09,752 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-26 19:38:09,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-26 19:38:09,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-10-26 19:38:09,753 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand 12 states. [2018-10-26 19:38:13,449 WARN L179 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-10-26 19:38:17,154 WARN L179 SmtUtils]: Spent 1.54 s on a formula simplification that was a NOOP. DAG size: 9 [2018-10-26 19:38:36,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:38:36,835 INFO L93 Difference]: Finished difference Result 60 states and 66 transitions. [2018-10-26 19:38:36,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-26 19:38:36,836 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 27 [2018-10-26 19:38:36,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:38:36,838 INFO L225 Difference]: With dead ends: 60 [2018-10-26 19:38:36,838 INFO L226 Difference]: Without dead ends: 52 [2018-10-26 19:38:36,839 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 15.1s TimeCoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2018-10-26 19:38:36,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-10-26 19:38:36,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2018-10-26 19:38:36,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-10-26 19:38:36,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2018-10-26 19:38:36,848 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 27 [2018-10-26 19:38:36,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:38:36,849 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2018-10-26 19:38:36,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-26 19:38:36,849 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2018-10-26 19:38:36,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-26 19:38:36,850 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:38:36,850 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:38:36,851 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:38:36,851 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:38:36,851 INFO L82 PathProgramCache]: Analyzing trace with hash 1609210287, now seen corresponding path program 1 times [2018-10-26 19:38:36,851 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 19:38:36,851 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-10-26 19:38:36,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:38:36,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:38:37,000 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:38:37,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:38:37,083 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 19:38:37,105 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:38:37,105 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 19:38:37,106 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 19:38:37,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 19:38:37,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 19:38:37,106 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand 7 states. [2018-10-26 19:38:46,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:38:46,436 INFO L93 Difference]: Finished difference Result 64 states and 68 transitions. [2018-10-26 19:38:46,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 19:38:46,505 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-10-26 19:38:46,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:38:46,506 INFO L225 Difference]: With dead ends: 64 [2018-10-26 19:38:46,506 INFO L226 Difference]: Without dead ends: 49 [2018-10-26 19:38:46,507 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-10-26 19:38:46,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-10-26 19:38:46,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 46. [2018-10-26 19:38:46,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-10-26 19:38:46,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2018-10-26 19:38:46,512 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 27 [2018-10-26 19:38:46,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:38:46,512 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2018-10-26 19:38:46,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 19:38:46,513 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2018-10-26 19:38:46,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-10-26 19:38:46,514 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:38:46,514 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:38:46,514 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:38:46,515 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:38:46,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1106269573, now seen corresponding path program 1 times [2018-10-26 19:38:46,515 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 19:38:46,515 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-10-26 19:38:46,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:38:47,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:38:47,512 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:38:47,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:38:47,628 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 19:38:47,647 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:38:47,648 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 19:38:47,648 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 19:38:47,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 19:38:47,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 19:38:47,649 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand 7 states. [2018-10-26 19:38:56,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:38:56,364 INFO L93 Difference]: Finished difference Result 74 states and 79 transitions. [2018-10-26 19:38:56,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-26 19:38:56,447 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2018-10-26 19:38:56,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:38:56,449 INFO L225 Difference]: With dead ends: 74 [2018-10-26 19:38:56,449 INFO L226 Difference]: Without dead ends: 44 [2018-10-26 19:38:56,450 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-10-26 19:38:56,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-10-26 19:38:56,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-10-26 19:38:56,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-10-26 19:38:56,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2018-10-26 19:38:56,456 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 31 [2018-10-26 19:38:56,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:38:56,456 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2018-10-26 19:38:56,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 19:38:56,456 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2018-10-26 19:38:56,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-10-26 19:38:56,457 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:38:56,457 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:38:56,457 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:38:56,458 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:38:56,458 INFO L82 PathProgramCache]: Analyzing trace with hash 2119083200, now seen corresponding path program 1 times [2018-10-26 19:38:56,458 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 19:38:56,458 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/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 [2018-10-26 19:38:56,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:38:57,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 19:38:57,781 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 19:38:57,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 19:38:57,924 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 19:38:57,953 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 19:38:57,954 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 19:38:57,954 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 19:38:57,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 19:38:57,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 19:38:57,955 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand 7 states. [2018-10-26 19:39:06,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 19:39:06,900 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2018-10-26 19:39:06,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 19:39:06,971 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2018-10-26 19:39:06,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 19:39:06,972 INFO L225 Difference]: With dead ends: 44 [2018-10-26 19:39:06,972 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 19:39:06,973 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-10-26 19:39:06,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 19:39:06,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 19:39:06,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 19:39:06,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 19:39:06,985 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-10-26 19:39:06,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 19:39:06,985 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 19:39:06,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 19:39:06,985 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 19:39:06,985 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 19:39:06,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 19:39:07,176 INFO L425 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-10-26 19:39:07,176 INFO L425 ceAbstractionStarter]: For program point L52-2(line 52) no Hoare annotation was computed. [2018-10-26 19:39:07,176 INFO L425 ceAbstractionStarter]: For program point L102(lines 102 106) no Hoare annotation was computed. [2018-10-26 19:39:07,176 INFO L425 ceAbstractionStarter]: For program point L102-2(lines 95 108) no Hoare annotation was computed. [2018-10-26 19:39:07,176 INFO L425 ceAbstractionStarter]: For program point L102-3(lines 102 106) no Hoare annotation was computed. [2018-10-26 19:39:07,176 INFO L425 ceAbstractionStarter]: For program point L53(lines 53 54) no Hoare annotation was computed. [2018-10-26 19:39:07,176 INFO L425 ceAbstractionStarter]: For program point L78(lines 78 81) no Hoare annotation was computed. [2018-10-26 19:39:07,177 INFO L425 ceAbstractionStarter]: For program point L70(lines 70 73) no Hoare annotation was computed. [2018-10-26 19:39:07,177 INFO L425 ceAbstractionStarter]: For program point L70-2(lines 58 73) no Hoare annotation was computed. [2018-10-26 19:39:07,177 INFO L425 ceAbstractionStarter]: For program point __ieee754_expfEXIT(lines 36 109) no Hoare annotation was computed. [2018-10-26 19:39:07,177 INFO L425 ceAbstractionStarter]: For program point L71(lines 71 72) no Hoare annotation was computed. [2018-10-26 19:39:07,177 INFO L428 ceAbstractionStarter]: At program point __ieee754_expfENTRY(lines 36 109) the Hoare annotation is: true [2018-10-26 19:39:07,177 INFO L425 ceAbstractionStarter]: For program point L55(lines 55 56) no Hoare annotation was computed. [2018-10-26 19:39:07,177 INFO L425 ceAbstractionStarter]: For program point __ieee754_expfFINAL(lines 36 109) no Hoare annotation was computed. [2018-10-26 19:39:07,177 INFO L425 ceAbstractionStarter]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2018-10-26 19:39:07,178 INFO L421 ceAbstractionStarter]: At program point L97-3(lines 97 101) the Hoare annotation is: (exists ((__ieee754_expf_~sx~0 (_ BitVec 32))) (and (not (= (bvadd (bvand __ieee754_expf_~sx~0 (_ bv2147483647 32)) (_ bv2155872256 32)) (_ bv0 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|))) [2018-10-26 19:39:07,178 INFO L425 ceAbstractionStarter]: For program point L89(lines 89 93) no Hoare annotation was computed. [2018-10-26 19:39:07,178 INFO L425 ceAbstractionStarter]: For program point L89-2(lines 82 95) no Hoare annotation was computed. [2018-10-26 19:39:07,178 INFO L425 ceAbstractionStarter]: For program point L89-3(lines 89 93) no Hoare annotation was computed. [2018-10-26 19:39:07,178 INFO L425 ceAbstractionStarter]: For program point L82(lines 82 108) no Hoare annotation was computed. [2018-10-26 19:39:07,178 INFO L425 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2018-10-26 19:39:07,178 INFO L425 ceAbstractionStarter]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2018-10-26 19:39:07,178 INFO L421 ceAbstractionStarter]: At program point L41-3(lines 41 45) the Hoare annotation is: (= |__ieee754_expf_#in~x| __ieee754_expf_~x) [2018-10-26 19:39:07,178 INFO L425 ceAbstractionStarter]: For program point L41-4(lines 41 45) no Hoare annotation was computed. [2018-10-26 19:39:07,178 INFO L425 ceAbstractionStarter]: For program point L58(lines 58 73) no Hoare annotation was computed. [2018-10-26 19:39:07,179 INFO L425 ceAbstractionStarter]: For program point L59(lines 59 68) no Hoare annotation was computed. [2018-10-26 19:39:07,179 INFO L425 ceAbstractionStarter]: For program point L59-2(lines 59 68) no Hoare annotation was computed. [2018-10-26 19:39:07,179 INFO L425 ceAbstractionStarter]: For program point L51(lines 51 52) no Hoare annotation was computed. [2018-10-26 19:39:07,179 INFO L425 ceAbstractionStarter]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2018-10-26 19:39:07,179 INFO L421 ceAbstractionStarter]: At program point L84-3(lines 84 88) the Hoare annotation is: (exists ((__ieee754_expf_~sx~0 (_ BitVec 32))) (and (not (= (bvadd (bvand __ieee754_expf_~sx~0 (_ bv2147483647 32)) (_ bv2155872256 32)) (_ bv0 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|))) [2018-10-26 19:39:07,179 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-26 19:39:07,179 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-26 19:39:07,179 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 19:39:07,179 INFO L425 ceAbstractionStarter]: For program point L114-1(lines 114 118) no Hoare annotation was computed. [2018-10-26 19:39:07,179 INFO L428 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 112 121) the Hoare annotation is: true [2018-10-26 19:39:07,180 INFO L421 ceAbstractionStarter]: At program point L114-3(lines 114 118) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-10-26 19:39:07,180 INFO L425 ceAbstractionStarter]: For program point L114-4(lines 114 118) no Hoare annotation was computed. [2018-10-26 19:39:07,180 INFO L425 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 112 121) no Hoare annotation was computed. [2018-10-26 19:39:07,180 INFO L425 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 112 121) no Hoare annotation was computed. [2018-10-26 19:39:07,180 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 19:39:07,188 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 19:39:07,189 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 19:39:07,189 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 19:39:07,189 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 123 140) the Hoare annotation is: true [2018-10-26 19:39:07,189 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 123 140) no Hoare annotation was computed. [2018-10-26 19:39:07,189 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 123 140) no Hoare annotation was computed. [2018-10-26 19:39:07,189 INFO L425 ceAbstractionStarter]: For program point L135(line 135) no Hoare annotation was computed. [2018-10-26 19:39:07,189 INFO L421 ceAbstractionStarter]: At program point L134(line 134) the Hoare annotation is: (let ((.cse0 (fp.div RNE ((_ to_fp 8 24) RNE 1.0) (_ +zero 8 24)))) (and (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE .cse0)) main_~res~0) (= .cse0 main_~x~0))) [2018-10-26 19:39:07,190 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 135) no Hoare annotation was computed. [2018-10-26 19:39:07,190 INFO L425 ceAbstractionStarter]: For program point L134-1(lines 134 137) no Hoare annotation was computed. [2018-10-26 19:39:07,190 INFO L421 ceAbstractionStarter]: At program point L131(line 131) the Hoare annotation is: (= (fp.div RNE ((_ to_fp 8 24) RNE 1.0) (_ +zero 8 24)) main_~x~0) [2018-10-26 19:39:07,190 INFO L425 ceAbstractionStarter]: For program point L131-1(line 131) no Hoare annotation was computed. [2018-10-26 19:39:07,198 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 19:39:07,199 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 19:39:07,199 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 19:39:07,199 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 19:39:07,208 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 19:39:07,208 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 19:39:07,209 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 19:39:07,209 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 19:39:07,212 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 19:39:07,215 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 19:39:07,216 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 19:39:07,216 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 19:39:07,216 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 19:39:07,217 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 19:39:07,217 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 19:39:07,217 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 19:39:07,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 07:39:07 BoogieIcfgContainer [2018-10-26 19:39:07,223 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 19:39:07,223 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 19:39:07,223 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 19:39:07,223 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 19:39:07,224 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:37:38" (3/4) ... [2018-10-26 19:39:07,230 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 19:39:07,238 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_expf [2018-10-26 19:39:07,238 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 19:39:07,238 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-10-26 19:39:07,239 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 19:39:07,247 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 126 nodes and edges [2018-10-26 19:39:07,248 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 68 nodes and edges [2018-10-26 19:39:07,249 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-10-26 19:39:07,249 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-26 19:39:07,281 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-10-26 19:39:07,281 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-10-26 19:39:07,282 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists __ieee754_expf_~sx~0 : bv32 :: !(~bvadd64(~bvand32(__ieee754_expf_~sx~0, 2147483647bv32), 2155872256bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) [2018-10-26 19:39:07,282 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists __ieee754_expf_~sx~0 : bv32 :: !(~bvadd64(~bvand32(__ieee754_expf_~sx~0, 2147483647bv32), 2155872256bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) [2018-10-26 19:39:07,367 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ed12ee9e-c83b-4425-af8f-e5f91eedd8fc/bin-2019/utaipan/witness.graphml [2018-10-26 19:39:07,367 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 19:39:07,368 INFO L168 Benchmark]: Toolchain (without parser) took 99206.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 190.8 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -184.5 MB). Peak memory consumption was 6.4 MB. Max. memory is 11.5 GB. [2018-10-26 19:39:07,372 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:39:07,372 INFO L168 Benchmark]: CACSL2BoogieTranslator took 388.44 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-10-26 19:39:07,373 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.80 ms. Allocated memory is still 1.0 GB. Free memory was 937.1 MB in the beginning and 931.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 19:39:07,373 INFO L168 Benchmark]: Boogie Preprocessor took 42.70 ms. Allocated memory is still 1.0 GB. Free memory is still 931.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:39:07,375 INFO L168 Benchmark]: RCFGBuilder took 9782.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 931.8 MB in the beginning and 1.1 GB in the end (delta: -133.9 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-10-26 19:39:07,377 INFO L168 Benchmark]: TraceAbstraction took 88768.47 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 62.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -79.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:39:07,377 INFO L168 Benchmark]: Witness Printer took 144.16 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: 7.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 11.5 GB. [2018-10-26 19:39:07,379 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 388.44 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.80 ms. Allocated memory is still 1.0 GB. Free memory was 937.1 MB in the beginning and 931.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.70 ms. Allocated memory is still 1.0 GB. Free memory is still 931.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 9782.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 931.8 MB in the beginning and 1.1 GB in the end (delta: -133.9 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 88768.47 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 62.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -79.4 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 144.16 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: 7.4 MB). Peak memory consumption was 7.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - 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 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 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 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: 135]: 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 [2018-10-26 19:39:07,394 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 19:39:07,394 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 19:39:07,395 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 19:39:07,395 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 19:39:07,404 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 19:39:07,404 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 19:39:07,404 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 19:39:07,404 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] Derived loop invariant: (\exists __ieee754_expf_~sx~0 : bv32 :: !(~bvadd64(~bvand32(__ieee754_expf_~sx~0, 2147483647bv32), 2155872256bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_expf_~sx~0[31:31], __ieee754_expf_~sx~0[30:23], __ieee754_expf_~sx~0[22:0]) == \old(x)) - InvariantResult [Line: 114]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 84]: Loop Invariant [2018-10-26 19:39:07,405 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 19:39:07,405 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 19:39:07,405 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 19:39:07,405 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 19:39:07,406 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 19:39:07,406 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 19:39:07,406 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] [2018-10-26 19:39:07,406 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_expf_~sx~0,QUANTIFIED] Derived loop invariant: (\exists __ieee754_expf_~sx~0 : bv32 :: !(~bvadd64(~bvand32(__ieee754_expf_~sx~0, 2147483647bv32), 2155872256bv32) == 0bv32) && ~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 5 procedures, 52 locations, 1 error locations. SAFE Result, 88.6s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 75.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 284 SDtfs, 301 SDslu, 1138 SDs, 0 SdLazy, 332 SolverSat, 5 SolverUnsat, 24 SolverUnknown, 0 SolverNotchecked, 65.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 208 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 16.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 17 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 24 PreInvPairs, 29 NumberOfFragments, 79 HoareAnnotationTreeSize, 24 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 10.1s InterpolantComputationTime, 189 NumberOfCodeBlocks, 189 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 182 ConstructedInterpolants, 37 QuantifiedInterpolants, 29614 SizeOfPredicates, 52 NumberOfNonLiveVariables, 1189 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...