./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 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2559c6d3-8a71-4f14-9ab4-1895820f173c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2559c6d3-8a71-4f14-9ab4-1895820f173c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2559c6d3-8a71-4f14-9ab4-1895820f173c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2559c6d3-8a71-4f14-9ab4-1895820f173c/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_2559c6d3-8a71-4f14-9ab4-1895820f173c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2559c6d3-8a71-4f14-9ab4-1895820f173c/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_2559c6d3-8a71-4f14-9ab4-1895820f173c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2559c6d3-8a71-4f14-9ab4-1895820f173c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2559c6d3-8a71-4f14-9ab4-1895820f173c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2559c6d3-8a71-4f14-9ab4-1895820f173c/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_2559c6d3-8a71-4f14-9ab4-1895820f173c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2559c6d3-8a71-4f14-9ab4-1895820f173c/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 0.1.23-5842f4b [2018-11-18 16:13:24,436 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:13:24,437 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:13:24,445 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:13:24,445 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:13:24,445 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:13:24,446 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:13:24,447 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:13:24,448 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:13:24,448 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:13:24,449 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:13:24,449 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:13:24,450 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:13:24,451 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:13:24,451 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:13:24,452 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:13:24,453 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:13:24,454 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:13:24,455 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:13:24,456 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:13:24,457 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:13:24,458 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:13:24,459 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:13:24,459 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:13:24,459 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:13:24,460 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:13:24,461 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:13:24,461 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:13:24,462 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:13:24,463 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:13:24,463 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:13:24,464 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:13:24,464 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:13:24,464 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:13:24,465 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:13:24,465 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:13:24,465 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2559c6d3-8a71-4f14-9ab4-1895820f173c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 16:13:24,475 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:13:24,476 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:13:24,476 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:13:24,477 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 16:13:24,477 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 16:13:24,477 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 16:13:24,477 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 16:13:24,477 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 16:13:24,477 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 16:13:24,477 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 16:13:24,478 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 16:13:24,478 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 16:13:24,478 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 16:13:24,478 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:13:24,478 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:13:24,479 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:13:24,479 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:13:24,479 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:13:24,479 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:13:24,479 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:13:24,479 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:13:24,479 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:13:24,479 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:13:24,480 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:13:24,480 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:13:24,480 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:13:24,480 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:13:24,480 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:13:24,480 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:13:24,480 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:13:24,480 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:13:24,480 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:13:24,480 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:13:24,481 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 16:13:24,481 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:13:24,481 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 16:13:24,481 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 16:13:24,481 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_2559c6d3-8a71-4f14-9ab4-1895820f173c/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 [2018-11-18 16:13:24,504 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:13:24,512 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:13:24,514 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:13:24,515 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:13:24,516 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:13:24,516 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2559c6d3-8a71-4f14-9ab4-1895820f173c/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1092a_true-unreach-call.c [2018-11-18 16:13:24,551 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2559c6d3-8a71-4f14-9ab4-1895820f173c/bin-2019/utaipan/data/83ecaef24/5e1a2264c07c4443bfc7536dc385ac42/FLAG5ef17b650 [2018-11-18 16:13:24,958 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:13:24,959 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2559c6d3-8a71-4f14-9ab4-1895820f173c/sv-benchmarks/c/float-newlib/float_req_bl_1092a_true-unreach-call.c [2018-11-18 16:13:24,964 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2559c6d3-8a71-4f14-9ab4-1895820f173c/bin-2019/utaipan/data/83ecaef24/5e1a2264c07c4443bfc7536dc385ac42/FLAG5ef17b650 [2018-11-18 16:13:24,974 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2559c6d3-8a71-4f14-9ab4-1895820f173c/bin-2019/utaipan/data/83ecaef24/5e1a2264c07c4443bfc7536dc385ac42 [2018-11-18 16:13:24,976 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:13:24,977 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:13:24,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:13:24,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:13:24,980 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:13:24,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:13:24" (1/1) ... [2018-11-18 16:13:24,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e791d46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:24, skipping insertion in model container [2018-11-18 16:13:24,983 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:13:24" (1/1) ... [2018-11-18 16:13:24,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:13:25,007 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:13:25,129 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:13:25,131 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:13:25,151 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:13:25,164 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:13:25,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:25 WrapperNode [2018-11-18 16:13:25,164 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:13:25,165 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:13:25,165 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:13:25,165 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:13:25,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:25" (1/1) ... [2018-11-18 16:13:25,177 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:25" (1/1) ... [2018-11-18 16:13:25,183 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:13:25,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:13:25,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:13:25,184 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:13:25,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:25" (1/1) ... [2018-11-18 16:13:25,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:25" (1/1) ... [2018-11-18 16:13:25,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:25" (1/1) ... [2018-11-18 16:13:25,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:25" (1/1) ... [2018-11-18 16:13:25,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:25" (1/1) ... [2018-11-18 16:13:25,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:25" (1/1) ... [2018-11-18 16:13:25,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:25" (1/1) ... [2018-11-18 16:13:25,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:13:25,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:13:25,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:13:25,249 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:13:25,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2559c6d3-8a71-4f14-9ab4-1895820f173c/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:13:25,288 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:13:25,289 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:13:25,289 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-11-18 16:13:25,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-11-18 16:13:25,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 16:13:25,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 16:13:25,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:13:25,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:13:25,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 16:13:25,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:13:25,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:13:25,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:13:25,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 16:13:25,290 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-18 16:13:25,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-18 16:13:25,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 16:13:25,506 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:13:25,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:13:25 BoogieIcfgContainer [2018-11-18 16:13:25,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:13:25,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:13:25,506 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:13:25,509 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:13:25,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:13:24" (1/3) ... [2018-11-18 16:13:25,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d83291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:13:25, skipping insertion in model container [2018-11-18 16:13:25,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:25" (2/3) ... [2018-11-18 16:13:25,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28d83291 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:13:25, skipping insertion in model container [2018-11-18 16:13:25,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:13:25" (3/3) ... [2018-11-18 16:13:25,512 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092a_true-unreach-call.c [2018-11-18 16:13:25,520 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:13:25,527 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 16:13:25,540 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 16:13:25,567 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:13:25,568 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:13:25,568 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:13:25,568 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:13:25,568 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:13:25,568 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:13:25,568 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:13:25,568 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:13:25,583 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-11-18 16:13:25,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 16:13:25,588 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:13:25,589 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:13:25,591 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:13:25,595 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:13:25,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1351570994, now seen corresponding path program 1 times [2018-11-18 16:13:25,598 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:13:25,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:13:25,635 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:13:25,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:13:25,635 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:13:25,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:13:25,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:13:25,698 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:13:25,698 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 16:13:25,698 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 16:13:25,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 16:13:25,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 16:13:25,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 16:13:25,716 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-11-18 16:13:25,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:13:25,734 INFO L93 Difference]: Finished difference Result 78 states and 111 transitions. [2018-11-18 16:13:25,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 16:13:25,735 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-18 16:13:25,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:13:25,743 INFO L225 Difference]: With dead ends: 78 [2018-11-18 16:13:25,743 INFO L226 Difference]: Without dead ends: 39 [2018-11-18 16:13:25,746 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 16:13:25,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-18 16:13:25,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-11-18 16:13:25,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-18 16:13:25,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2018-11-18 16:13:25,771 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 18 [2018-11-18 16:13:25,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:13:25,772 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-11-18 16:13:25,772 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 16:13:25,772 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2018-11-18 16:13:25,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 16:13:25,772 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:13:25,773 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:13:25,773 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:13:25,773 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:13:25,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1951513555, now seen corresponding path program 1 times [2018-11-18 16:13:25,773 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 16:13:25,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:13:25,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:13:25,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:13:25,775 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 16:13:25,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:13:25,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:13:25,837 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 16:13:25,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:13:25 BoogieIcfgContainer [2018-11-18 16:13:25,857 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 16:13:25,857 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:13:25,857 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:13:25,858 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:13:25,859 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:13:25" (3/4) ... [2018-11-18 16:13:25,861 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 16:13:25,862 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:13:25,862 INFO L168 Benchmark]: Toolchain (without parser) took 885.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -121.4 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. [2018-11-18 16:13:25,863 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:13:25,864 INFO L168 Benchmark]: CACSL2BoogieTranslator took 187.38 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 945.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:13:25,864 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.44 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:13:25,865 INFO L168 Benchmark]: Boogie Preprocessor took 64.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2018-11-18 16:13:25,865 INFO L168 Benchmark]: RCFGBuilder took 257.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:13:25,866 INFO L168 Benchmark]: TraceAbstraction took 350.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. [2018-11-18 16:13:25,866 INFO L168 Benchmark]: Witness Printer took 4.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:13:25,868 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 187.38 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 945.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.44 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 64.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 257.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 350.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.32 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 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)=132, huge_ceil=1000000000000000000000000000000] [L76] float x = -0.0f; VAL [huge_ceil=1000000000000000000000000000000] [L77] CALL, EXPR ceil_float(x) VAL [\old(x)=134, huge_ceil=1000000000000000000000000000000] [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [\old(x)=134, huge_ceil=1000000000000000000000000000000, x=134] [L17] FCALL ieee_float_shape_type gf_u; [L18] FCALL gf_u.value = (x) [L19] EXPR, FCALL gf_u.word [L19] (i0) = gf_u.word [L20] COND FALSE !(0) VAL [\old(x)=134, huge_ceil=1000000000000000000000000000000, i0=2, x=134] [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [\old(x)=134, huge_ceil=1000000000000000000000000000000, i=-36028794871480321, i0=2, j0=128, x=134] [L23] COND FALSE !(j0 < 23) VAL [\old(x)=134, huge_ceil=1000000000000000000000000000000, i=-36028794871480321, i0=2, j0=128, x=134] [L43] COND TRUE !((ix) < 0x7f800000L) [L44] RET return x + x; VAL [\old(x)=134, huge_ceil=1000000000000000000000000000000, i=-36028794871480321, i0=2, j0=128, x=134] [L77] EXPR ceil_float(x) VAL [ceil_float(x)=131, huge_ceil=1000000000000000000000000000000, x=134] [L77] float res = ceil_float(x); [L80] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [huge_ceil=1000000000000000000000000000000, res=131, res == -0.0f && __signbit_float(res) == 1=0, x=134] [L80] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L81] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000, res=131, x=134] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 52 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 16:13:27,310 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:13:27,312 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:13:27,320 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:13:27,320 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:13:27,321 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:13:27,322 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:13:27,324 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:13:27,325 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:13:27,326 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:13:27,327 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:13:27,327 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:13:27,328 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:13:27,329 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:13:27,330 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:13:27,331 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:13:27,331 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:13:27,333 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:13:27,335 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:13:27,336 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:13:27,337 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:13:27,338 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:13:27,340 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:13:27,340 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:13:27,340 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:13:27,341 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:13:27,342 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:13:27,343 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:13:27,344 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:13:27,344 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:13:27,345 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:13:27,345 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:13:27,346 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:13:27,346 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:13:27,347 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:13:27,348 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:13:27,348 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2559c6d3-8a71-4f14-9ab4-1895820f173c/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 16:13:27,359 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:13:27,359 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:13:27,360 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:13:27,360 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 16:13:27,361 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 16:13:27,361 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 16:13:27,361 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 16:13:27,361 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 16:13:27,361 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 16:13:27,361 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 16:13:27,362 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:13:27,362 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:13:27,362 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:13:27,362 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:13:27,363 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:13:27,363 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:13:27,363 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:13:27,363 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 16:13:27,363 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 16:13:27,363 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:13:27,364 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:13:27,364 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:13:27,364 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:13:27,364 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:13:27,364 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:13:27,364 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:13:27,364 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:13:27,365 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:13:27,365 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:13:27,365 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:13:27,365 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:13:27,365 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 16:13:27,365 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:13:27,366 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 16:13:27,366 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 16:13:27,366 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_2559c6d3-8a71-4f14-9ab4-1895820f173c/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 [2018-11-18 16:13:27,396 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:13:27,405 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:13:27,408 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:13:27,410 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:13:27,410 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:13:27,411 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2559c6d3-8a71-4f14-9ab4-1895820f173c/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1092a_true-unreach-call.c [2018-11-18 16:13:27,458 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2559c6d3-8a71-4f14-9ab4-1895820f173c/bin-2019/utaipan/data/c5abfc7e3/4fd148785478494d9562995ac48472c5/FLAG55ff699ca [2018-11-18 16:13:27,795 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:13:27,795 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2559c6d3-8a71-4f14-9ab4-1895820f173c/sv-benchmarks/c/float-newlib/float_req_bl_1092a_true-unreach-call.c [2018-11-18 16:13:27,799 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2559c6d3-8a71-4f14-9ab4-1895820f173c/bin-2019/utaipan/data/c5abfc7e3/4fd148785478494d9562995ac48472c5/FLAG55ff699ca [2018-11-18 16:13:27,810 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2559c6d3-8a71-4f14-9ab4-1895820f173c/bin-2019/utaipan/data/c5abfc7e3/4fd148785478494d9562995ac48472c5 [2018-11-18 16:13:27,812 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:13:27,814 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:13:27,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:13:27,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:13:27,817 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:13:27,817 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:13:27" (1/1) ... [2018-11-18 16:13:27,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27a4379e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:27, skipping insertion in model container [2018-11-18 16:13:27,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:13:27" (1/1) ... [2018-11-18 16:13:27,826 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:13:27,843 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:13:27,980 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:13:27,984 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:13:28,003 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:13:28,021 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:13:28,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:28 WrapperNode [2018-11-18 16:13:28,022 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:13:28,022 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:13:28,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:13:28,022 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:13:28,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:28" (1/1) ... [2018-11-18 16:13:28,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:28" (1/1) ... [2018-11-18 16:13:28,042 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:13:28,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:13:28,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:13:28,042 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:13:28,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:28" (1/1) ... [2018-11-18 16:13:28,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:28" (1/1) ... [2018-11-18 16:13:28,052 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:28" (1/1) ... [2018-11-18 16:13:28,053 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:28" (1/1) ... [2018-11-18 16:13:28,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:28" (1/1) ... [2018-11-18 16:13:28,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:28" (1/1) ... [2018-11-18 16:13:28,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:28" (1/1) ... [2018-11-18 16:13:28,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:13:28,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:13:28,075 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:13:28,075 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:13:28,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2559c6d3-8a71-4f14-9ab4-1895820f173c/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:13:28,166 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:13:28,167 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:13:28,167 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_float [2018-11-18 16:13:28,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_float [2018-11-18 16:13:28,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 16:13:28,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:13:28,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:13:28,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:13:28,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 16:13:28,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:13:28,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:13:28,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 16:13:28,168 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-18 16:13:28,168 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-18 16:13:28,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 16:13:28,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 16:13:28,502 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 16:13:28,665 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:13:28,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:13:28 BoogieIcfgContainer [2018-11-18 16:13:28,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:13:28,674 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:13:28,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:13:28,676 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:13:28,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:13:27" (1/3) ... [2018-11-18 16:13:28,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36c1ac93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:13:28, skipping insertion in model container [2018-11-18 16:13:28,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:28" (2/3) ... [2018-11-18 16:13:28,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36c1ac93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:13:28, skipping insertion in model container [2018-11-18 16:13:28,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:13:28" (3/3) ... [2018-11-18 16:13:28,678 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092a_true-unreach-call.c [2018-11-18 16:13:28,683 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:13:28,688 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 16:13:28,696 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 16:13:28,714 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:13:28,714 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:13:28,714 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:13:28,714 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:13:28,714 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:13:28,715 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:13:28,715 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:13:28,715 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:13:28,715 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:13:28,724 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-11-18 16:13:28,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 16:13:28,728 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:13:28,729 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:13:28,730 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:13:28,733 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:13:28,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1351570994, now seen corresponding path program 1 times [2018-11-18 16:13:28,736 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:13:28,736 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2559c6d3-8a71-4f14-9ab4-1895820f173c/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-18 16:13:28,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:13:28,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:13:28,793 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:13:28,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:13:28,805 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:13:28,814 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:13:28,814 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 16:13:28,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 16:13:28,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 16:13:28,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 16:13:28,830 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-11-18 16:13:28,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:13:28,856 INFO L93 Difference]: Finished difference Result 78 states and 111 transitions. [2018-11-18 16:13:28,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 16:13:28,857 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-18 16:13:28,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:13:28,866 INFO L225 Difference]: With dead ends: 78 [2018-11-18 16:13:28,866 INFO L226 Difference]: Without dead ends: 39 [2018-11-18 16:13:28,869 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 16:13:28,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-18 16:13:28,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-11-18 16:13:28,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-18 16:13:28,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2018-11-18 16:13:28,901 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 18 [2018-11-18 16:13:28,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:13:28,902 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-11-18 16:13:28,902 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 16:13:28,902 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2018-11-18 16:13:28,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 16:13:28,903 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:13:28,903 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:13:28,903 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:13:28,903 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:13:28,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1951513555, now seen corresponding path program 1 times [2018-11-18 16:13:28,904 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:13:28,904 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2559c6d3-8a71-4f14-9ab4-1895820f173c/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-18 16:13:28,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:13:28,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:13:28,950 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:13:29,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:13:29,059 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:13:29,067 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:13:29,067 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 16:13:29,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 16:13:29,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 16:13:29,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 16:13:29,069 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand 7 states. [2018-11-18 16:13:30,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:13:30,098 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2018-11-18 16:13:30,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 16:13:30,099 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-11-18 16:13:30,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:13:30,101 INFO L225 Difference]: With dead ends: 60 [2018-11-18 16:13:30,101 INFO L226 Difference]: Without dead ends: 44 [2018-11-18 16:13:30,102 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 16:13:30,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-18 16:13:30,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2018-11-18 16:13:30,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-18 16:13:30,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2018-11-18 16:13:30,108 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 19 [2018-11-18 16:13:30,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:13:30,108 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2018-11-18 16:13:30,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 16:13:30,109 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2018-11-18 16:13:30,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 16:13:30,109 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:13:30,110 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:13:30,110 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:13:30,110 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:13:30,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1136318903, now seen corresponding path program 1 times [2018-11-18 16:13:30,111 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:13:30,111 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2559c6d3-8a71-4f14-9ab4-1895820f173c/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-18 16:13:30,119 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:13:30,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:13:30,146 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:13:30,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:13:30,226 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:13:30,233 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:13:30,233 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 16:13:30,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 16:13:30,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 16:13:30,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 16:13:30,234 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand 7 states. [2018-11-18 16:13:31,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:13:31,044 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2018-11-18 16:13:31,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 16:13:31,045 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-11-18 16:13:31,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:13:31,046 INFO L225 Difference]: With dead ends: 67 [2018-11-18 16:13:31,046 INFO L226 Difference]: Without dead ends: 39 [2018-11-18 16:13:31,046 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-11-18 16:13:31,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-18 16:13:31,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2018-11-18 16:13:31,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-18 16:13:31,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-11-18 16:13:31,050 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 20 [2018-11-18 16:13:31,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:13:31,050 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-11-18 16:13:31,050 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 16:13:31,050 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-11-18 16:13:31,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 16:13:31,051 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:13:31,051 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:13:31,051 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:13:31,051 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:13:31,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1197614518, now seen corresponding path program 1 times [2018-11-18 16:13:31,051 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:13:31,052 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2559c6d3-8a71-4f14-9ab4-1895820f173c/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-18 16:13:31,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:13:31,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:13:31,100 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:13:31,935 WARN L180 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-18 16:13:31,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:13:31,941 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:13:31,953 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:13:31,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 16:13:31,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 16:13:31,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 16:13:31,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 16:13:31,954 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 6 states. [2018-11-18 16:13:32,878 WARN L180 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-18 16:13:33,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:13:33,270 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-11-18 16:13:33,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 16:13:33,274 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-11-18 16:13:33,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:13:33,274 INFO L225 Difference]: With dead ends: 52 [2018-11-18 16:13:33,275 INFO L226 Difference]: Without dead ends: 34 [2018-11-18 16:13:33,275 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 16:13:33,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-18 16:13:33,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-18 16:13:33,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-18 16:13:33,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2018-11-18 16:13:33,278 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 23 [2018-11-18 16:13:33,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:13:33,278 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2018-11-18 16:13:33,278 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 16:13:33,278 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-11-18 16:13:33,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 16:13:33,279 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:13:33,279 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:13:33,279 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:13:33,279 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:13:33,279 INFO L82 PathProgramCache]: Analyzing trace with hash -913385180, now seen corresponding path program 1 times [2018-11-18 16:13:33,280 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:13:33,280 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2559c6d3-8a71-4f14-9ab4-1895820f173c/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-18 16:13:33,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:13:33,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:13:33,328 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:13:33,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:13:33,360 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:13:33,367 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:13:33,367 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 16:13:33,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 16:13:33,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 16:13:33,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 16:13:33,368 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand 7 states. [2018-11-18 16:13:33,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:13:33,462 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2018-11-18 16:13:33,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 16:13:33,463 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-18 16:13:33,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:13:33,464 INFO L225 Difference]: With dead ends: 44 [2018-11-18 16:13:33,464 INFO L226 Difference]: Without dead ends: 41 [2018-11-18 16:13:33,464 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 16:13:33,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-18 16:13:33,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-18 16:13:33,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-18 16:13:33,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2018-11-18 16:13:33,469 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 24 [2018-11-18 16:13:33,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:13:33,469 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2018-11-18 16:13:33,469 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 16:13:33,469 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2018-11-18 16:13:33,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 16:13:33,469 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:13:33,469 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:13:33,470 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:13:33,470 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:13:33,470 INFO L82 PathProgramCache]: Analyzing trace with hash 198066784, now seen corresponding path program 1 times [2018-11-18 16:13:33,470 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:13:33,470 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2559c6d3-8a71-4f14-9ab4-1895820f173c/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-18 16:13:33,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:13:33,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:13:33,518 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:13:33,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:13:33,596 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:13:33,608 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:13:33,608 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 16:13:33,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 16:13:33,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 16:13:33,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 16:13:33,609 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 6 states. [2018-11-18 16:13:33,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:13:33,846 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2018-11-18 16:13:33,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 16:13:33,847 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-11-18 16:13:33,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:13:33,847 INFO L225 Difference]: With dead ends: 57 [2018-11-18 16:13:33,848 INFO L226 Difference]: Without dead ends: 33 [2018-11-18 16:13:33,848 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-11-18 16:13:33,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-18 16:13:33,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-18 16:13:33,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-18 16:13:33,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 32 transitions. [2018-11-18 16:13:33,851 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 32 transitions. Word has length 25 [2018-11-18 16:13:33,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:13:33,851 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 32 transitions. [2018-11-18 16:13:33,851 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 16:13:33,851 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2018-11-18 16:13:33,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-18 16:13:33,852 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:13:33,852 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] [2018-11-18 16:13:33,852 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:13:33,852 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:13:33,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1491080896, now seen corresponding path program 1 times [2018-11-18 16:13:33,853 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:13:33,853 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2559c6d3-8a71-4f14-9ab4-1895820f173c/bin-2019/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-11-18 16:13:33,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:13:33,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:13:33,912 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:13:34,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:13:34,053 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:13:34,060 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:13:34,061 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-11-18 16:13:34,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 16:13:34,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 16:13:34,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-11-18 16:13:34,061 INFO L87 Difference]: Start difference. First operand 33 states and 32 transitions. Second operand 12 states. [2018-11-18 16:13:34,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:13:34,342 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2018-11-18 16:13:34,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 16:13:34,342 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 32 [2018-11-18 16:13:34,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:13:34,343 INFO L225 Difference]: With dead ends: 33 [2018-11-18 16:13:34,343 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 16:13:34,343 INFO L604 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 [2018-11-18 16:13:34,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 16:13:34,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 16:13:34,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 16:13:34,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 16:13:34,344 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-11-18 16:13:34,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:13:34,344 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 16:13:34,344 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 16:13:34,344 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 16:13:34,344 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 16:13:34,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 16:13:34,493 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 16:13:34,493 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 16:13:34,493 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 16:13:34,494 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 16:13:34,494 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_ceil~0) [2018-11-18 16:13:34,494 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 16:13:34,494 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 16:13:34,494 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 68 86) the Hoare annotation is: true [2018-11-18 16:13:34,494 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 68 86) no Hoare annotation was computed. [2018-11-18 16:13:34,494 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 81) no Hoare annotation was computed. [2018-11-18 16:13:34,494 INFO L425 ceAbstractionStarter]: For program point L81(line 81) no Hoare annotation was computed. [2018-11-18 16:13:34,494 INFO L425 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2018-11-18 16:13:34,494 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) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_ceil~0))) [2018-11-18 16:13:34,494 INFO L425 ceAbstractionStarter]: For program point L80-2(line 80) no Hoare annotation was computed. [2018-11-18 16:13:34,494 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) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_ceil~0))) [2018-11-18 16:13:34,495 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 68 86) no Hoare annotation was computed. [2018-11-18 16:13:34,495 INFO L425 ceAbstractionStarter]: For program point L77-1(line 77) no Hoare annotation was computed. [2018-11-18 16:13:34,495 INFO L425 ceAbstractionStarter]: For program point L80-4(lines 80 83) no Hoare annotation was computed. [2018-11-18 16:13:34,495 INFO L425 ceAbstractionStarter]: For program point L23(lines 23 47) no Hoare annotation was computed. [2018-11-18 16:13:34,495 INFO L425 ceAbstractionStarter]: For program point L48(lines 48 52) no Hoare annotation was computed. [2018-11-18 16:13:34,495 INFO L425 ceAbstractionStarter]: For program point L48-2(lines 13 54) no Hoare annotation was computed. [2018-11-18 16:13:34,495 INFO L425 ceAbstractionStarter]: For program point L48-3(lines 48 52) no Hoare annotation was computed. [2018-11-18 16:13:34,495 INFO L425 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2018-11-18 16:13:34,495 INFO L428 ceAbstractionStarter]: At program point ceil_floatENTRY(lines 13 54) the Hoare annotation is: true [2018-11-18 16:13:34,495 INFO L425 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-11-18 16:13:34,495 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 41) no Hoare annotation was computed. [2018-11-18 16:13:34,495 INFO L425 ceAbstractionStarter]: For program point ceil_floatFINAL(lines 13 54) no Hoare annotation was computed. [2018-11-18 16:13:34,495 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-11-18 16:13:34,495 INFO L421 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (or (= |ceil_float_#in~x| ceil_float_~x) (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_ceil~0))) [2018-11-18 16:13:34,495 INFO L425 ceAbstractionStarter]: For program point L16-4(lines 16 20) no Hoare annotation was computed. [2018-11-18 16:13:34,496 INFO L425 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-11-18 16:13:34,496 INFO L425 ceAbstractionStarter]: For program point ceil_floatEXIT(lines 13 54) no Hoare annotation was computed. [2018-11-18 16:13:34,496 INFO L425 ceAbstractionStarter]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2018-11-18 16:13:34,496 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-11-18 16:13:34,496 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-11-18 16:13:34,496 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2018-11-18 16:13:34,496 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 46) no Hoare annotation was computed. [2018-11-18 16:13:34,496 INFO L425 ceAbstractionStarter]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2018-11-18 16:13:34,496 INFO L421 ceAbstractionStarter]: At program point L59-3(lines 59 63) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_ceil~0)) (= |__signbit_float_#in~x| __signbit_float_~x)) [2018-11-18 16:13:34,496 INFO L425 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 56 66) no Hoare annotation was computed. [2018-11-18 16:13:34,496 INFO L425 ceAbstractionStarter]: For program point L59-4(lines 59 63) no Hoare annotation was computed. [2018-11-18 16:13:34,496 INFO L428 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 56 66) the Hoare annotation is: true [2018-11-18 16:13:34,496 INFO L425 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 56 66) no Hoare annotation was computed. [2018-11-18 16:13:34,502 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 16:13:34,503 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 16:13:34,505 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 16:13:34,506 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 16:13:34,506 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 16:13:34,506 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 16:13:34,507 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 16:13:34,507 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 16:13:34,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:13:34 BoogieIcfgContainer [2018-11-18 16:13:34,508 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 16:13:34,509 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:13:34,509 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:13:34,509 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:13:34,510 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:13:28" (3/4) ... [2018-11-18 16:13:34,512 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 16:13:34,516 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 16:13:34,517 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 16:13:34,517 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_float [2018-11-18 16:13:34,517 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-11-18 16:13:34,520 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-11-18 16:13:34,521 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-18 16:13:34,521 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 16:13:34,539 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_ceil) [2018-11-18 16:13:34,539 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_ceil) || \old(x) == x [2018-11-18 16:13:34,558 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2559c6d3-8a71-4f14-9ab4-1895820f173c/bin-2019/utaipan/witness.graphml [2018-11-18 16:13:34,558 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:13:34,559 INFO L168 Benchmark]: Toolchain (without parser) took 6746.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 949.2 MB in the beginning and 835.1 MB in the end (delta: 114.1 MB). Peak memory consumption was 247.8 MB. Max. memory is 11.5 GB. [2018-11-18 16:13:34,559 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:13:34,560 INFO L168 Benchmark]: CACSL2BoogieTranslator took 207.60 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 16:13:34,560 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.75 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:13:34,560 INFO L168 Benchmark]: Boogie Preprocessor took 32.61 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:13:34,561 INFO L168 Benchmark]: RCFGBuilder took 590.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -168.0 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:13:34,561 INFO L168 Benchmark]: TraceAbstraction took 5834.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 841.9 MB in the end (delta: 259.2 MB). Peak memory consumption was 259.2 MB. Max. memory is 11.5 GB. [2018-11-18 16:13:34,561 INFO L168 Benchmark]: Witness Printer took 49.33 ms. Allocated memory is still 1.2 GB. Free memory was 841.9 MB in the beginning and 835.1 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-18 16:13:34,563 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 207.60 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 933.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.75 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.61 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 590.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -168.0 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5834.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 841.9 MB in the end (delta: 259.2 MB). Peak memory consumption was 259.2 MB. Max. memory is 11.5 GB. * Witness Printer took 49.33 ms. Allocated memory is still 1.2 GB. Free memory was 841.9 MB in the beginning and 835.1 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 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 [2018-11-18 16:13:34,566 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 16:13:34,566 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 16:13:34,567 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 16:13:34,567 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_ceil) || \old(x) == x - InvariantResult [Line: 16]: Loop Invariant [2018-11-18 16:13:34,567 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 16:13:34,567 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 16:13:34,568 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 16:13:34,568 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: \old(x) == x || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_ceil) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. SAFE Result, 5.7s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 3.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 229 SDtfs, 226 SDslu, 728 SDs, 0 SdLazy, 330 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 176 GetRequests, 120 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 2.4s 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, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 154 ConstructedInterpolants, 17 QuantifiedInterpolants, 20017 SizeOfPredicates, 25 NumberOfNonLiveVariables, 425 ConjunctsInSsa, 44 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...