./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1092a_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_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/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 fb906b6dd506785279c111a847f91453236e370a ............................................................................................................................................................................................................................................................................................................................................................................. 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_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/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 fb906b6dd506785279c111a847f91453236e370a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 23:37:12,280 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:37:12,282 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:37:12,294 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:37:12,297 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:37:12,298 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:37:12,300 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:37:12,301 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:37:12,303 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:37:12,306 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:37:12,308 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:37:12,309 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:37:12,310 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:37:12,312 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:37:12,317 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:37:12,318 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:37:12,319 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:37:12,320 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:37:12,325 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:37:12,328 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:37:12,329 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:37:12,332 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:37:12,335 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:37:12,338 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:37:12,338 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:37:12,339 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:37:12,339 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:37:12,340 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:37:12,341 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:37:12,341 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:37:12,341 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:37:12,342 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:37:12,342 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:37:12,342 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:37:12,343 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:37:12,343 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:37:12,344 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 23:37:12,360 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:37:12,362 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:37:12,363 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:37:12,363 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 23:37:12,364 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 23:37:12,364 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 23:37:12,364 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 23:37:12,365 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 23:37:12,365 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 23:37:12,365 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 23:37:12,365 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 23:37:12,366 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:37:12,368 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 23:37:12,368 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 23:37:12,368 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 23:37:12,368 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:37:12,368 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:37:12,369 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:37:12,369 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:37:12,369 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 23:37:12,369 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:37:12,369 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:37:12,369 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:37:12,369 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 23:37:12,370 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:37:12,370 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 23:37:12,370 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:37:12,370 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:37:12,370 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:37:12,370 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:37:12,370 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 23:37:12,371 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:37:12,371 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 23:37:12,371 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 23:37:12,371 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_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/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 -> fb906b6dd506785279c111a847f91453236e370a [2018-10-26 23:37:12,402 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:37:12,412 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:37:12,415 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:37:12,416 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:37:12,416 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:37:12,416 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1092a_true-unreach-call.c [2018-10-26 23:37:12,474 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/bin-2019/utaipan/data/726dff10e/c9d3f4a7032248e6ba88e7064c5c2f89/FLAGec24cd886 [2018-10-26 23:37:12,838 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:37:12,839 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/sv-benchmarks/c/float-newlib/float_req_bl_1092a_true-unreach-call.c [2018-10-26 23:37:12,846 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/bin-2019/utaipan/data/726dff10e/c9d3f4a7032248e6ba88e7064c5c2f89/FLAGec24cd886 [2018-10-26 23:37:12,856 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/bin-2019/utaipan/data/726dff10e/c9d3f4a7032248e6ba88e7064c5c2f89 [2018-10-26 23:37:12,859 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:37:12,859 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 23:37:12,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:37:12,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:37:12,863 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:37:12,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:37:12" (1/1) ... [2018-10-26 23:37:12,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c9842d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:37:12, skipping insertion in model container [2018-10-26 23:37:12,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:37:12" (1/1) ... [2018-10-26 23:37:12,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:37:12,892 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:37:13,022 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:37:13,024 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:37:13,051 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:37:13,066 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:37:13,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:37:13 WrapperNode [2018-10-26 23:37:13,066 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:37:13,067 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 23:37:13,067 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 23:37:13,067 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 23:37:13,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:37:13" (1/1) ... [2018-10-26 23:37:13,082 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:37:13" (1/1) ... [2018-10-26 23:37:13,104 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 23:37:13,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:37:13,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:37:13,104 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:37:13,114 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:37:13" (1/1) ... [2018-10-26 23:37:13,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:37:13" (1/1) ... [2018-10-26 23:37:13,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:37:13" (1/1) ... [2018-10-26 23:37:13,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:37:13" (1/1) ... [2018-10-26 23:37:13,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:37:13" (1/1) ... [2018-10-26 23:37:13,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:37:13" (1/1) ... [2018-10-26 23:37:13,153 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:37:13" (1/1) ... [2018-10-26 23:37:13,155 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:37:13,156 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:37:13,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:37:13,156 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:37:13,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:37:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:37:13,319 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 23:37:13,319 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 23:37:13,319 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-10-26 23:37:13,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-10-26 23:37:13,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 23:37:13,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 23:37:13,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:37:13,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:37:13,320 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-10-26 23:37:13,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-10-26 23:37:13,855 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:37:13,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:37:13 BoogieIcfgContainer [2018-10-26 23:37:13,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:37:13,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 23:37:13,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 23:37:13,859 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 23:37:13,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 11:37:12" (1/3) ... [2018-10-26 23:37:13,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@693ea551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:37:13, skipping insertion in model container [2018-10-26 23:37:13,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:37:13" (2/3) ... [2018-10-26 23:37:13,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@693ea551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:37:13, skipping insertion in model container [2018-10-26 23:37:13,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:37:13" (3/3) ... [2018-10-26 23:37:13,862 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092a_true-unreach-call.c [2018-10-26 23:37:13,871 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 23:37:13,878 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 23:37:13,891 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 23:37:13,918 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 23:37:13,919 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 23:37:13,919 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 23:37:13,919 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 23:37:13,919 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 23:37:13,919 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 23:37:13,919 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 23:37:13,919 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 23:37:13,934 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-10-26 23:37:13,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 23:37:13,940 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:37:13,940 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:37:13,943 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:37:13,948 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:37:13,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1351570994, now seen corresponding path program 1 times [2018-10-26 23:37:13,950 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:37:13,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:37:13,998 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:37:13,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:37:13,999 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:37:14,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:37:14,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:37:14,081 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:37:14,081 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 23:37:14,081 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:37:14,086 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 23:37:14,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 23:37:14,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 23:37:14,100 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-10-26 23:37:14,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:37:14,130 INFO L93 Difference]: Finished difference Result 78 states and 111 transitions. [2018-10-26 23:37:14,130 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 23:37:14,131 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-10-26 23:37:14,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:37:14,140 INFO L225 Difference]: With dead ends: 78 [2018-10-26 23:37:14,141 INFO L226 Difference]: Without dead ends: 39 [2018-10-26 23:37:14,143 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 23:37:14,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-10-26 23:37:14,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-10-26 23:37:14,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-10-26 23:37:14,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2018-10-26 23:37:14,182 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 18 [2018-10-26 23:37:14,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:37:14,182 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-10-26 23:37:14,182 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 23:37:14,182 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2018-10-26 23:37:14,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-26 23:37:14,183 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:37:14,183 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:37:14,184 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:37:14,184 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:37:14,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1951513555, now seen corresponding path program 1 times [2018-10-26 23:37:14,184 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:37:14,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:37:14,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:37:14,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:37:14,187 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:37:14,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:37:14,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 23:37:14,291 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 23:37:14,303 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:37:14,304 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:37:14,304 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:37:14,305 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:37:14,305 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:37:14,305 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:37:14,305 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:37:14,305 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:37:14,306 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:37:14,306 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:37:14,306 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:37:14,306 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:37:14,307 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:37:14,307 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:37:14,307 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:37:14,307 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:37:14,308 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:37:14,308 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:37:14,308 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:37:14,308 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:37:14,314 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:37:14,314 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:37:14,314 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 23:37:14,314 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 23:37:14,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 11:37:14 BoogieIcfgContainer [2018-10-26 23:37:14,334 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 23:37:14,335 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 23:37:14,336 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 23:37:14,336 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 23:37:14,337 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:37:13" (3/4) ... [2018-10-26 23:37:14,341 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-26 23:37:14,341 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 23:37:14,342 INFO L168 Benchmark]: Toolchain (without parser) took 1482.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.9 MB). Free memory was 960.7 MB in the beginning and 1.1 GB in the end (delta: -173.6 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. [2018-10-26 23:37:14,343 INFO L168 Benchmark]: CDTParser took 4.20 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:37:14,343 INFO L168 Benchmark]: CACSL2BoogieTranslator took 206.49 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 948.9 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-10-26 23:37:14,344 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.23 ms. Allocated memory is still 1.0 GB. Free memory was 948.9 MB in the beginning and 946.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:37:14,344 INFO L168 Benchmark]: Boogie Preprocessor took 51.15 ms. Allocated memory is still 1.0 GB. Free memory was 946.2 MB in the beginning and 943.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:37:14,348 INFO L168 Benchmark]: RCFGBuilder took 700.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.9 MB). Free memory was 943.5 MB in the beginning and 1.2 GB in the end (delta: -219.1 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-10-26 23:37:14,350 INFO L168 Benchmark]: TraceAbstraction took 478.37 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: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2018-10-26 23:37:14,351 INFO L168 Benchmark]: Witness Printer took 6.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:37:14,356 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 4.20 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 206.49 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 948.9 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.23 ms. Allocated memory is still 1.0 GB. Free memory was 948.9 MB in the beginning and 946.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.15 ms. Allocated memory is still 1.0 GB. Free memory was 946.2 MB in the beginning and 943.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 700.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 192.9 MB). Free memory was 943.5 MB in the beginning and 1.2 GB in the end (delta: -219.1 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 478.37 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: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. * Witness Printer took 6.06 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.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.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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 81]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 80, overapproximation of bitwiseAnd at line 21, overapproximation of someUnaryFLOAToperation at line 76, overapproximation of someBinaryArithmeticFLOAToperation at line 44. Possible FailurePath: [L11] static const float huge_ceil = 1.0e30; VAL [\old(huge_ceil)=6442450948, huge_ceil=1000000000000000000000000000000] [L76] float x = -0.0f; VAL [huge_ceil=1000000000000000000000000000000] [L77] CALL, EXPR ceil_float(x) VAL [huge_ceil=1000000000000000000000000000000] [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [huge_ceil=1000000000000000000000000000000] [L17] CALL ieee_float_shape_type gf_u; [L17] RET ieee_float_shape_type gf_u; [L18] CALL gf_u.value = (x) [L18] RET gf_u.value = (x) [L19] CALL, EXPR gf_u.word [L19] RET, EXPR gf_u.word [L19] (i0) = gf_u.word [L19] RET (i0) = gf_u.word [L20] COND FALSE !(0) VAL [huge_ceil=1000000000000000000000000000000] [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [huge_ceil=1000000000000000000000000000000] [L23] COND FALSE !(j0 < 23) VAL [huge_ceil=1000000000000000000000000000000] [L43] COND TRUE !((ix) < 0x7f800000L) [L44] RET return x + x; VAL [huge_ceil=1000000000000000000000000000000] [L77] EXPR ceil_float(x) VAL [ceil_float(x)=6442450945, huge_ceil=1000000000000000000000000000000, x=6442450949] [L77] float res = ceil_float(x); [L80] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [huge_ceil=1000000000000000000000000000000, res=6442450945, res == -0.0f && __signbit_float(res) == 1=0, x=6442450949] [L80] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L81] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000, res=6442450945, x=6442450949] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 52 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-10-26 23:37:16,212 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:37:16,215 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:37:16,225 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:37:16,225 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:37:16,225 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:37:16,226 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:37:16,227 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:37:16,228 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:37:16,228 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:37:16,229 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:37:16,229 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:37:16,230 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:37:16,231 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:37:16,232 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:37:16,232 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:37:16,233 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:37:16,234 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:37:16,236 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:37:16,237 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:37:16,238 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:37:16,239 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:37:16,241 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:37:16,241 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:37:16,241 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:37:16,242 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:37:16,243 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:37:16,243 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:37:16,244 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:37:16,245 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:37:16,245 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:37:16,246 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:37:16,246 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:37:16,246 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:37:16,247 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:37:16,247 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:37:16,248 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-26 23:37:16,258 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:37:16,259 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:37:16,259 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:37:16,260 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 23:37:16,260 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 23:37:16,260 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 23:37:16,260 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 23:37:16,260 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 23:37:16,261 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:37:16,261 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 23:37:16,261 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 23:37:16,261 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:37:16,261 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:37:16,262 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:37:16,262 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:37:16,262 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-26 23:37:16,262 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-26 23:37:16,262 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 23:37:16,262 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:37:16,262 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:37:16,262 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:37:16,263 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 23:37:16,263 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:37:16,263 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 23:37:16,263 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:37:16,263 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:37:16,263 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:37:16,263 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:37:16,263 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-26 23:37:16,264 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:37:16,264 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-26 23:37:16,264 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-26 23:37:16,264 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_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/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 -> fb906b6dd506785279c111a847f91453236e370a [2018-10-26 23:37:16,306 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:37:16,317 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:37:16,319 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:37:16,320 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:37:16,321 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:37:16,321 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1092a_true-unreach-call.c [2018-10-26 23:37:16,365 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/bin-2019/utaipan/data/1f0a67c52/5bcb9c10defa4781a65f8c18dd5d57ec/FLAG59066c35f [2018-10-26 23:37:16,762 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:37:16,763 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/sv-benchmarks/c/float-newlib/float_req_bl_1092a_true-unreach-call.c [2018-10-26 23:37:16,768 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/bin-2019/utaipan/data/1f0a67c52/5bcb9c10defa4781a65f8c18dd5d57ec/FLAG59066c35f [2018-10-26 23:37:16,778 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/bin-2019/utaipan/data/1f0a67c52/5bcb9c10defa4781a65f8c18dd5d57ec [2018-10-26 23:37:16,781 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:37:16,782 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 23:37:16,783 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:37:16,783 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:37:16,787 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:37:16,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:37:16" (1/1) ... [2018-10-26 23:37:16,790 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5356465f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:37:16, skipping insertion in model container [2018-10-26 23:37:16,790 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:37:16" (1/1) ... [2018-10-26 23:37:16,799 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:37:16,818 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:37:16,956 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:37:16,960 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:37:16,982 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:37:17,003 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:37:17,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:37:17 WrapperNode [2018-10-26 23:37:17,003 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:37:17,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 23:37:17,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 23:37:17,004 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 23:37:17,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:37:17" (1/1) ... [2018-10-26 23:37:17,019 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:37:17" (1/1) ... [2018-10-26 23:37:17,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 23:37:17,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:37:17,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:37:17,044 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:37:17,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:37:17" (1/1) ... [2018-10-26 23:37:17,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:37:17" (1/1) ... [2018-10-26 23:37:17,053 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:37:17" (1/1) ... [2018-10-26 23:37:17,053 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:37:17" (1/1) ... [2018-10-26 23:37:17,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:37:17" (1/1) ... [2018-10-26 23:37:17,063 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:37:17" (1/1) ... [2018-10-26 23:37:17,065 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:37:17" (1/1) ... [2018-10-26 23:37:17,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:37:17,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:37:17,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:37:17,069 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:37:17,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:37:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:37:17,171 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 23:37:17,171 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 23:37:17,171 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-10-26 23:37:17,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-10-26 23:37:17,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 23:37:17,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 23:37:17,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:37:17,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:37:17,172 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-10-26 23:37:17,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-10-26 23:37:17,668 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 23:37:17,868 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 23:37:17,877 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:37:17,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:37:17 BoogieIcfgContainer [2018-10-26 23:37:17,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:37:17,878 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 23:37:17,879 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 23:37:17,881 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 23:37:17,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 11:37:16" (1/3) ... [2018-10-26 23:37:17,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@674061a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:37:17, skipping insertion in model container [2018-10-26 23:37:17,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:37:17" (2/3) ... [2018-10-26 23:37:17,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@674061a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:37:17, skipping insertion in model container [2018-10-26 23:37:17,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:37:17" (3/3) ... [2018-10-26 23:37:17,884 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092a_true-unreach-call.c [2018-10-26 23:37:17,893 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 23:37:17,900 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 23:37:17,913 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 23:37:17,933 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 23:37:17,933 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 23:37:17,933 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 23:37:17,934 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 23:37:17,934 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 23:37:17,934 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 23:37:17,934 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 23:37:17,934 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 23:37:17,934 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 23:37:17,946 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-10-26 23:37:17,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-26 23:37:17,952 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:37:17,952 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:37:17,957 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:37:17,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:37:17,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1351570994, now seen corresponding path program 1 times [2018-10-26 23:37:17,965 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 23:37:17,966 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/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 23:37:17,972 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:37:18,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:37:18,035 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:37:18,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:37:18,049 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 23:37:18,062 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:37:18,063 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 23:37:18,066 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 23:37:18,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 23:37:18,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 23:37:18,081 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-10-26 23:37:18,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:37:18,102 INFO L93 Difference]: Finished difference Result 78 states and 111 transitions. [2018-10-26 23:37:18,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 23:37:18,104 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-10-26 23:37:18,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:37:18,112 INFO L225 Difference]: With dead ends: 78 [2018-10-26 23:37:18,114 INFO L226 Difference]: Without dead ends: 39 [2018-10-26 23:37:18,116 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 23:37:18,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-10-26 23:37:18,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-10-26 23:37:18,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-10-26 23:37:18,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2018-10-26 23:37:18,149 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 18 [2018-10-26 23:37:18,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:37:18,149 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-10-26 23:37:18,150 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 23:37:18,150 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2018-10-26 23:37:18,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-26 23:37:18,150 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:37:18,151 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:37:18,151 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:37:18,151 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:37:18,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1951513555, now seen corresponding path program 1 times [2018-10-26 23:37:18,152 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 23:37:18,152 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-26 23:37:18,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-10-26 23:37:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:37:18,228 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:37:18,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:37:18,726 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 23:37:18,738 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:37:18,738 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 23:37:18,740 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 23:37:18,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 23:37:18,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 23:37:18,740 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand 7 states. [2018-10-26 23:37:19,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:37:19,840 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2018-10-26 23:37:19,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-26 23:37:19,841 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-10-26 23:37:19,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:37:19,843 INFO L225 Difference]: With dead ends: 60 [2018-10-26 23:37:19,843 INFO L226 Difference]: Without dead ends: 44 [2018-10-26 23:37:19,844 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-10-26 23:37:19,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-10-26 23:37:19,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2018-10-26 23:37:19,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-10-26 23:37:19,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2018-10-26 23:37:19,852 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 19 [2018-10-26 23:37:19,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:37:19,852 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2018-10-26 23:37:19,852 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 23:37:19,852 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2018-10-26 23:37:19,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-26 23:37:19,854 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:37:19,854 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:37:19,857 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:37:19,857 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:37:19,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1136318903, now seen corresponding path program 1 times [2018-10-26 23:37:19,858 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 23:37:19,858 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/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 23:37:19,867 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:37:19,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:37:19,912 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:37:20,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:37:20,014 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 23:37:20,021 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:37:20,022 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 23:37:20,022 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 23:37:20,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 23:37:20,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 23:37:20,023 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand 7 states. [2018-10-26 23:37:20,326 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-10-26 23:37:21,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:37:21,027 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2018-10-26 23:37:21,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-26 23:37:21,030 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-10-26 23:37:21,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:37:21,030 INFO L225 Difference]: With dead ends: 67 [2018-10-26 23:37:21,031 INFO L226 Difference]: Without dead ends: 39 [2018-10-26 23:37:21,031 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-10-26 23:37:21,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-10-26 23:37:21,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2018-10-26 23:37:21,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-10-26 23:37:21,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-10-26 23:37:21,037 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 20 [2018-10-26 23:37:21,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:37:21,037 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-10-26 23:37:21,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 23:37:21,037 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-10-26 23:37:21,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-26 23:37:21,038 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:37:21,038 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:37:21,038 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:37:21,039 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:37:21,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1197614518, now seen corresponding path program 1 times [2018-10-26 23:37:21,039 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 23:37:21,039 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-10-26 23:37:21,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:37:21,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:37:21,133 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:37:22,212 WARN L179 SmtUtils]: Spent 475.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-26 23:37:22,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:37:22,228 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 23:37:22,241 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:37:22,242 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 23:37:22,242 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 23:37:22,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 23:37:22,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-26 23:37:22,243 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 6 states. [2018-10-26 23:37:23,473 WARN L179 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-26 23:37:23,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:37:23,825 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-10-26 23:37:23,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 23:37:23,829 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-10-26 23:37:23,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:37:23,830 INFO L225 Difference]: With dead ends: 52 [2018-10-26 23:37:23,830 INFO L226 Difference]: Without dead ends: 34 [2018-10-26 23:37:23,831 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-26 23:37:23,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-10-26 23:37:23,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-10-26 23:37:23,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-10-26 23:37:23,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2018-10-26 23:37:23,835 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 23 [2018-10-26 23:37:23,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:37:23,835 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2018-10-26 23:37:23,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 23:37:23,836 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-10-26 23:37:23,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-26 23:37:23,836 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:37:23,836 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:37:23,837 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:37:23,837 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:37:23,837 INFO L82 PathProgramCache]: Analyzing trace with hash -913385180, now seen corresponding path program 1 times [2018-10-26 23:37:23,837 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 23:37:23,837 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-10-26 23:37:23,841 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:37:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:37:23,918 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:37:24,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:37:24,017 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 23:37:24,025 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:37:24,025 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 23:37:24,026 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 23:37:24,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 23:37:24,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-26 23:37:24,026 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand 7 states. [2018-10-26 23:37:24,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:37:24,173 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2018-10-26 23:37:24,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 23:37:24,174 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-10-26 23:37:24,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:37:24,174 INFO L225 Difference]: With dead ends: 44 [2018-10-26 23:37:24,174 INFO L226 Difference]: Without dead ends: 41 [2018-10-26 23:37:24,175 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-10-26 23:37:24,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-10-26 23:37:24,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-10-26 23:37:24,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-10-26 23:37:24,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2018-10-26 23:37:24,181 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 24 [2018-10-26 23:37:24,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:37:24,181 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2018-10-26 23:37:24,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 23:37:24,182 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2018-10-26 23:37:24,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-26 23:37:24,182 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:37:24,182 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 23:37:24,183 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:37:24,183 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:37:24,183 INFO L82 PathProgramCache]: Analyzing trace with hash 198066784, now seen corresponding path program 1 times [2018-10-26 23:37:24,183 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 23:37:24,183 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-10-26 23:37:24,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:37:24,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:37:24,265 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:37:24,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:37:24,319 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 23:37:24,326 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:37:24,326 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 23:37:24,326 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 23:37:24,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 23:37:24,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-26 23:37:24,327 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 6 states. [2018-10-26 23:37:24,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:37:24,692 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2018-10-26 23:37:24,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 23:37:24,693 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-10-26 23:37:24,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:37:24,694 INFO L225 Difference]: With dead ends: 57 [2018-10-26 23:37:24,694 INFO L226 Difference]: Without dead ends: 33 [2018-10-26 23:37:24,695 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-10-26 23:37:24,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-10-26 23:37:24,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-10-26 23:37:24,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-10-26 23:37:24,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 32 transitions. [2018-10-26 23:37:24,698 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 32 transitions. Word has length 25 [2018-10-26 23:37:24,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:37:24,699 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 32 transitions. [2018-10-26 23:37:24,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 23:37:24,699 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2018-10-26 23:37:24,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-10-26 23:37:24,699 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:37:24,699 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 23:37:24,700 INFO L424 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:37:24,700 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:37:24,700 INFO L82 PathProgramCache]: Analyzing trace with hash 1491080896, now seen corresponding path program 1 times [2018-10-26 23:37:24,700 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 23:37:24,700 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/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 23:37:24,704 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:37:24,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:37:24,797 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:37:24,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:37:24,973 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 23:37:24,981 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:37:24,981 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-26 23:37:24,981 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-26 23:37:24,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-26 23:37:24,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-10-26 23:37:24,982 INFO L87 Difference]: Start difference. First operand 33 states and 32 transitions. Second operand 12 states. [2018-10-26 23:37:25,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:37:25,277 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2018-10-26 23:37:25,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-26 23:37:25,278 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 32 [2018-10-26 23:37:25,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:37:25,278 INFO L225 Difference]: With dead ends: 33 [2018-10-26 23:37:25,278 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 23:37:25,279 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2018-10-26 23:37:25,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 23:37:25,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 23:37:25,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 23:37:25,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 23:37:25,279 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-10-26 23:37:25,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:37:25,280 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 23:37:25,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-26 23:37:25,280 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 23:37:25,280 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 23:37:25,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 23:37:25,556 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-26 23:37:25,557 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-26 23:37:25,557 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 23:37:25,557 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 23:37:25,557 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_ceil~0) [2018-10-26 23:37:25,557 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 23:37:25,557 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 23:37:25,557 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 68 86) the Hoare annotation is: true [2018-10-26 23:37:25,558 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 68 86) no Hoare annotation was computed. [2018-10-26 23:37:25,558 INFO L425 ceAbstractionStarter]: For program point L81(line 81) no Hoare annotation was computed. [2018-10-26 23:37:25,558 INFO L425 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2018-10-26 23:37:25,558 INFO L421 ceAbstractionStarter]: At program point L80-1(line 80) the Hoare annotation is: (or (and |main_#t~short8| (= main_~x~0 (fp.neg (_ +zero 8 24))) (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) main_~res~0)) (not (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_ceil~0))) [2018-10-26 23:37:25,558 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 81) no Hoare annotation was computed. [2018-10-26 23:37:25,558 INFO L425 ceAbstractionStarter]: For program point L80-2(line 80) no Hoare annotation was computed. [2018-10-26 23:37:25,558 INFO L421 ceAbstractionStarter]: At program point L77(line 77) the Hoare annotation is: (or (= main_~x~0 (fp.neg (_ +zero 8 24))) (not (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_ceil~0))) [2018-10-26 23:37:25,558 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 68 86) no Hoare annotation was computed. [2018-10-26 23:37:25,559 INFO L425 ceAbstractionStarter]: For program point L77-1(line 77) no Hoare annotation was computed. [2018-10-26 23:37:25,559 INFO L425 ceAbstractionStarter]: For program point L80-4(lines 80 83) no Hoare annotation was computed. [2018-10-26 23:37:25,559 INFO L425 ceAbstractionStarter]: For program point L23(lines 23 47) no Hoare annotation was computed. [2018-10-26 23:37:25,559 INFO L425 ceAbstractionStarter]: For program point L48(lines 48 52) no Hoare annotation was computed. [2018-10-26 23:37:25,559 INFO L425 ceAbstractionStarter]: For program point L48-2(lines 13 54) no Hoare annotation was computed. [2018-10-26 23:37:25,559 INFO L425 ceAbstractionStarter]: For program point L48-3(lines 48 52) no Hoare annotation was computed. [2018-10-26 23:37:25,559 INFO L425 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2018-10-26 23:37:25,559 INFO L428 ceAbstractionStarter]: At program point ceil_floatENTRY(lines 13 54) the Hoare annotation is: true [2018-10-26 23:37:25,559 INFO L425 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-10-26 23:37:25,559 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 41) no Hoare annotation was computed. [2018-10-26 23:37:25,559 INFO L425 ceAbstractionStarter]: For program point ceil_floatFINAL(lines 13 54) no Hoare annotation was computed. [2018-10-26 23:37:25,560 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-10-26 23:37:25,560 INFO L421 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_ceil~0)) (= |ceil_float_#in~x| ceil_float_~x)) [2018-10-26 23:37:25,560 INFO L425 ceAbstractionStarter]: For program point L16-4(lines 16 20) no Hoare annotation was computed. [2018-10-26 23:37:25,560 INFO L425 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-10-26 23:37:25,560 INFO L425 ceAbstractionStarter]: For program point ceil_floatEXIT(lines 13 54) no Hoare annotation was computed. [2018-10-26 23:37:25,560 INFO L425 ceAbstractionStarter]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2018-10-26 23:37:25,560 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-10-26 23:37:25,560 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-10-26 23:37:25,560 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2018-10-26 23:37:25,560 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 46) no Hoare annotation was computed. [2018-10-26 23:37:25,561 INFO L425 ceAbstractionStarter]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2018-10-26 23:37:25,561 INFO L421 ceAbstractionStarter]: At program point L59-3(lines 59 63) the Hoare annotation is: (or (= |__signbit_float_#in~x| __signbit_float_~x) (not (= ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 1000000000000000000000000000000.0)) ~huge_ceil~0))) [2018-10-26 23:37:25,561 INFO L425 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 56 66) no Hoare annotation was computed. [2018-10-26 23:37:25,561 INFO L425 ceAbstractionStarter]: For program point L59-4(lines 59 63) no Hoare annotation was computed. [2018-10-26 23:37:25,561 INFO L428 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 56 66) the Hoare annotation is: true [2018-10-26 23:37:25,561 INFO L425 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 56 66) no Hoare annotation was computed. [2018-10-26 23:37:25,567 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:37:25,568 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:37:25,571 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:37:25,571 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:37:25,572 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:37:25,572 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:37:25,573 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:37:25,573 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:37:25,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 11:37:25 BoogieIcfgContainer [2018-10-26 23:37:25,575 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 23:37:25,575 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 23:37:25,575 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 23:37:25,575 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 23:37:25,576 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:37:17" (3/4) ... [2018-10-26 23:37:25,580 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 23:37:25,585 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 23:37:25,585 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 23:37:25,585 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_float [2018-10-26 23:37:25,585 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-10-26 23:37:25,590 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2018-10-26 23:37:25,591 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2018-10-26 23:37:25,591 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-10-26 23:37:25,611 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30)) == huge_ceil) || \old(x) == x [2018-10-26 23:37:25,611 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30)) == huge_ceil) [2018-10-26 23:37:25,641 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a9a79dcc-6f4f-4f4f-8a9e-f4e4ea972fe4/bin-2019/utaipan/witness.graphml [2018-10-26 23:37:25,641 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 23:37:25,642 INFO L168 Benchmark]: Toolchain (without parser) took 8860.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 954.6 MB in the beginning and 856.2 MB in the end (delta: 98.4 MB). Peak memory consumption was 256.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:37:25,643 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:37:25,643 INFO L168 Benchmark]: CACSL2BoogieTranslator took 220.68 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 938.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-10-26 23:37:25,643 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.31 ms. Allocated memory is still 1.0 GB. Free memory is still 938.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:37:25,644 INFO L168 Benchmark]: Boogie Preprocessor took 24.61 ms. Allocated memory is still 1.0 GB. Free memory is still 938.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:37:25,644 INFO L168 Benchmark]: RCFGBuilder took 809.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 938.5 MB in the beginning and 1.1 GB in the end (delta: -186.5 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2018-10-26 23:37:25,644 INFO L168 Benchmark]: TraceAbstraction took 7696.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 856.2 MB in the end (delta: 268.8 MB). Peak memory consumption was 268.8 MB. Max. memory is 11.5 GB. [2018-10-26 23:37:25,645 INFO L168 Benchmark]: Witness Printer took 66.34 ms. Allocated memory is still 1.2 GB. Free memory is still 856.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:37:25,651 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 220.68 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 938.5 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 39.31 ms. Allocated memory is still 1.0 GB. Free memory is still 938.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.61 ms. Allocated memory is still 1.0 GB. Free memory is still 938.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 809.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 938.5 MB in the beginning and 1.1 GB in the end (delta: -186.5 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7696.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 856.2 MB in the end (delta: 268.8 MB). Peak memory consumption was 268.8 MB. Max. memory is 11.5 GB. * Witness Printer took 66.34 ms. Allocated memory is still 1.2 GB. Free memory is still 856.2 MB. 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: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 81]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 59]: Loop Invariant [2018-10-26 23:37:25,655 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:37:25,655 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:37:25,656 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:37:25,656 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE Derived loop invariant: \old(x) == x || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30)) == huge_ceil) - InvariantResult [Line: 16]: Loop Invariant [2018-10-26 23:37:25,656 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:37:25,656 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:37:25,662 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-10-26 23:37:25,663 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE Derived loop invariant: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~to_fp~LONGDOUBLE(RoundingMode_RNE, 1.0E30)) == huge_ceil) || \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. SAFE Result, 7.6s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 4.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 229 SDtfs, 226 SDslu, 728 SDs, 0 SdLazy, 330 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 176 GetRequests, 120 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 20 PreInvPairs, 23 NumberOfFragments, 70 HoareAnnotationTreeSize, 20 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 76 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 154 ConstructedInterpolants, 17 QuantifiedInterpolants, 20017 SizeOfPredicates, 55 NumberOfNonLiveVariables, 608 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...