./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1092a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9d6690f5-2e8d-417b-8196-2192c9f3c09d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9d6690f5-2e8d-417b-8196-2192c9f3c09d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9d6690f5-2e8d-417b-8196-2192c9f3c09d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9d6690f5-2e8d-417b-8196-2192c9f3c09d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9d6690f5-2e8d-417b-8196-2192c9f3c09d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9d6690f5-2e8d-417b-8196-2192c9f3c09d/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 8be2489bdcd97218605067fa4593696f9050abdf ...................................................................................................................................................................................................................................................................................................................... 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_9d6690f5-2e8d-417b-8196-2192c9f3c09d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9d6690f5-2e8d-417b-8196-2192c9f3c09d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9d6690f5-2e8d-417b-8196-2192c9f3c09d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9d6690f5-2e8d-417b-8196-2192c9f3c09d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9d6690f5-2e8d-417b-8196-2192c9f3c09d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9d6690f5-2e8d-417b-8196-2192c9f3c09d/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 8be2489bdcd97218605067fa4593696f9050abdf ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 21:00:34,657 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 21:00:34,658 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 21:00:34,664 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 21:00:34,664 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 21:00:34,665 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 21:00:34,665 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 21:00:34,666 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 21:00:34,667 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 21:00:34,667 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 21:00:34,668 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 21:00:34,668 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 21:00:34,668 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 21:00:34,669 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 21:00:34,669 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 21:00:34,669 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 21:00:34,670 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 21:00:34,671 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 21:00:34,671 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 21:00:34,672 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 21:00:34,673 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 21:00:34,673 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 21:00:34,674 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 21:00:34,674 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 21:00:34,674 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 21:00:34,675 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 21:00:34,675 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 21:00:34,676 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 21:00:34,676 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 21:00:34,677 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 21:00:34,677 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 21:00:34,677 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 21:00:34,677 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 21:00:34,677 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 21:00:34,678 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 21:00:34,678 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 21:00:34,678 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9d6690f5-2e8d-417b-8196-2192c9f3c09d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 21:00:34,685 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 21:00:34,685 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 21:00:34,686 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 21:00:34,686 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 21:00:34,686 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 21:00:34,686 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 21:00:34,686 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 21:00:34,686 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 21:00:34,686 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 21:00:34,686 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 21:00:34,686 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 21:00:34,686 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 21:00:34,687 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 21:00:34,687 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 21:00:34,687 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 21:00:34,687 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 21:00:34,687 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 21:00:34,687 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 21:00:34,687 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 21:00:34,687 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 21:00:34,688 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 21:00:34,688 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 21:00:34,688 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 21:00:34,688 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 21:00:34,688 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 21:00:34,688 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 21:00:34,688 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 21:00:34,688 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 21:00:34,688 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 21:00:34,688 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 21:00:34,688 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 21:00:34,689 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 21:00:34,689 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 21:00:34,689 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 21:00:34,689 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 21:00:34,689 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 21:00:34,689 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_9d6690f5-2e8d-417b-8196-2192c9f3c09d/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 -> 8be2489bdcd97218605067fa4593696f9050abdf [2018-12-08 21:00:34,705 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 21:00:34,713 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 21:00:34,715 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 21:00:34,716 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 21:00:34,716 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 21:00:34,716 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9d6690f5-2e8d-417b-8196-2192c9f3c09d/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1092a_true-unreach-call.c [2018-12-08 21:00:34,751 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9d6690f5-2e8d-417b-8196-2192c9f3c09d/bin-2019/utaipan/data/d9d361f72/5db7b91106774c219e7f92d281d446dc/FLAGa65ff5378 [2018-12-08 21:00:35,183 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 21:00:35,183 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9d6690f5-2e8d-417b-8196-2192c9f3c09d/sv-benchmarks/c/float-newlib/double_req_bl_1092a_true-unreach-call.c [2018-12-08 21:00:35,188 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9d6690f5-2e8d-417b-8196-2192c9f3c09d/bin-2019/utaipan/data/d9d361f72/5db7b91106774c219e7f92d281d446dc/FLAGa65ff5378 [2018-12-08 21:00:35,197 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9d6690f5-2e8d-417b-8196-2192c9f3c09d/bin-2019/utaipan/data/d9d361f72/5db7b91106774c219e7f92d281d446dc [2018-12-08 21:00:35,200 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 21:00:35,200 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 21:00:35,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 21:00:35,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 21:00:35,204 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 21:00:35,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 09:00:35" (1/1) ... [2018-12-08 21:00:35,206 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a7d0136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:00:35, skipping insertion in model container [2018-12-08 21:00:35,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 09:00:35" (1/1) ... [2018-12-08 21:00:35,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 21:00:35,222 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 21:00:35,326 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 21:00:35,328 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 21:00:35,347 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 21:00:35,360 INFO L195 MainTranslator]: Completed translation [2018-12-08 21:00:35,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:00:35 WrapperNode [2018-12-08 21:00:35,360 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 21:00:35,361 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 21:00:35,361 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 21:00:35,361 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 21:00:35,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:00:35" (1/1) ... [2018-12-08 21:00:35,404 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:00:35" (1/1) ... [2018-12-08 21:00:35,409 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 21:00:35,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 21:00:35,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 21:00:35,410 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 21:00:35,416 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:00:35" (1/1) ... [2018-12-08 21:00:35,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:00:35" (1/1) ... [2018-12-08 21:00:35,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:00:35" (1/1) ... [2018-12-08 21:00:35,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:00:35" (1/1) ... [2018-12-08 21:00:35,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:00:35" (1/1) ... [2018-12-08 21:00:35,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:00:35" (1/1) ... [2018-12-08 21:00:35,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:00:35" (1/1) ... [2018-12-08 21:00:35,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 21:00:35,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 21:00:35,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 21:00:35,434 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 21:00:35,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:00:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9d6690f5-2e8d-417b-8196-2192c9f3c09d/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 21:00:35,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-08 21:00:35,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 21:00:35,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 21:00:35,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 21:00:35,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-08 21:00:35,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 21:00:35,466 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-12-08 21:00:35,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-12-08 21:00:35,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 21:00:35,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 21:00:35,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 21:00:35,467 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 21:00:35,467 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 21:00:35,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 21:00:35,611 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 21:00:35,611 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-08 21:00:35,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:00:35 BoogieIcfgContainer [2018-12-08 21:00:35,612 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 21:00:35,612 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 21:00:35,612 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 21:00:35,614 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 21:00:35,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 09:00:35" (1/3) ... [2018-12-08 21:00:35,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6db57b2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 09:00:35, skipping insertion in model container [2018-12-08 21:00:35,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:00:35" (2/3) ... [2018-12-08 21:00:35,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6db57b2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 09:00:35, skipping insertion in model container [2018-12-08 21:00:35,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:00:35" (3/3) ... [2018-12-08 21:00:35,616 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092a_true-unreach-call.c [2018-12-08 21:00:35,621 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 21:00:35,625 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 21:00:35,634 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 21:00:35,652 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 21:00:35,652 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 21:00:35,652 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 21:00:35,652 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 21:00:35,652 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 21:00:35,652 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 21:00:35,652 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 21:00:35,653 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 21:00:35,662 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-12-08 21:00:35,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-08 21:00:35,666 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:00:35,667 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:00:35,668 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:00:35,671 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:00:35,671 INFO L82 PathProgramCache]: Analyzing trace with hash 593324774, now seen corresponding path program 1 times [2018-12-08 21:00:35,673 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 21:00:35,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:00:35,700 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:00:35,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:00:35,700 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 21:00:35,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:00:35,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 21:00:35,745 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 21:00:35,745 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 21:00:35,745 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 21:00:35,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 21:00:35,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 21:00:35,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 21:00:35,756 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-12-08 21:00:35,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:00:35,768 INFO L93 Difference]: Finished difference Result 76 states and 114 transitions. [2018-12-08 21:00:35,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 21:00:35,769 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-12-08 21:00:35,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:00:35,775 INFO L225 Difference]: With dead ends: 76 [2018-12-08 21:00:35,775 INFO L226 Difference]: Without dead ends: 38 [2018-12-08 21:00:35,777 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 21:00:35,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-12-08 21:00:35,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-12-08 21:00:35,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-08 21:00:35,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 52 transitions. [2018-12-08 21:00:35,798 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 52 transitions. Word has length 18 [2018-12-08 21:00:35,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:00:35,798 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 52 transitions. [2018-12-08 21:00:35,799 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 21:00:35,799 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 52 transitions. [2018-12-08 21:00:35,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-08 21:00:35,799 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:00:35,799 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:00:35,799 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:00:35,799 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:00:35,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1268028223, now seen corresponding path program 1 times [2018-12-08 21:00:35,800 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 21:00:35,800 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:00:35,800 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:00:35,800 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 21:00:35,800 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 21:00:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 21:00:35,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 21:00:35,846 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 21:00:35,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 09:00:35 BoogieIcfgContainer [2018-12-08 21:00:35,863 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 21:00:35,863 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 21:00:35,863 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 21:00:35,864 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 21:00:35,864 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:00:35" (3/4) ... [2018-12-08 21:00:35,866 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 21:00:35,866 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 21:00:35,867 INFO L168 Benchmark]: Toolchain (without parser) took 666.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -106.4 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2018-12-08 21:00:35,867 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 21:00:35,868 INFO L168 Benchmark]: CACSL2BoogieTranslator took 159.33 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 939.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-08 21:00:35,868 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 939.0 MB in the beginning and 1.1 GB in the end (delta: -185.7 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2018-12-08 21:00:35,868 INFO L168 Benchmark]: Boogie Preprocessor took 24.53 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-08 21:00:35,869 INFO L168 Benchmark]: RCFGBuilder took 177.43 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: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2018-12-08 21:00:35,869 INFO L168 Benchmark]: TraceAbstraction took 251.17 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: 38.3 MB). Peak memory consumption was 38.3 MB. Max. memory is 11.5 GB. [2018-12-08 21:00:35,869 INFO L168 Benchmark]: Witness Printer took 2.78 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-08 21:00:35,871 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 159.33 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 939.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 939.0 MB in the beginning and 1.1 GB in the end (delta: -185.7 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.53 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 177.43 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: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 251.17 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: 38.3 MB). Peak memory consumption was 38.3 MB. Max. memory is 11.5 GB. * Witness Printer took 2.78 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 96]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 41, overapproximation of bitwiseOr at line 42, overapproximation of someUnaryDOUBLEoperation at line 91, overapproximation of bitwiseAnd at line 28, overapproximation of someBinaryDOUBLEComparisonOperation at line 95. Possible FailurePath: [L17] static const double huge_ceil = 1.0e300; VAL [\old(huge_ceil)=10737418244, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L91] double x = -0.0; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L92] CALL, EXPR ceil_double(x) VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L20] __int32_t i0, i1, j0; [L21] __uint32_t i, j; VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418245] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (i0) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (i1) = ew_u.parts.lsw [L28] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, x=10737418245] [L29] COND TRUE j0 < 20 VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=0, x=10737418245] [L30] COND FALSE !(j0 < 0) [L41] i = (0x000fffff) >> j0 VAL [\old(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=0, x=10737418245] [L42] COND TRUE ((i0 & i) | i1) == 0 [L43] return x; VAL [\old(x)=10737418245, \result=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=0, x=10737418245] [L92] RET, EXPR ceil_double(x) VAL [ceil_double(x)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418245] [L92] double res = ceil_double(x); [L95] COND TRUE res != x VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=10737418245, x=10737418245] [L96] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=10737418245, x=10737418245] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 42 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 56 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=42occurred 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 0.1.23-635dfa2 [2018-12-08 21:00:37,150 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 21:00:37,151 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 21:00:37,158 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 21:00:37,158 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 21:00:37,159 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 21:00:37,159 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 21:00:37,161 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 21:00:37,162 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 21:00:37,162 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 21:00:37,163 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 21:00:37,163 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 21:00:37,163 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 21:00:37,164 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 21:00:37,164 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 21:00:37,165 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 21:00:37,165 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 21:00:37,166 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 21:00:37,167 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 21:00:37,168 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 21:00:37,168 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 21:00:37,169 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 21:00:37,170 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 21:00:37,171 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 21:00:37,171 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 21:00:37,171 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 21:00:37,172 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 21:00:37,172 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 21:00:37,172 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 21:00:37,173 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 21:00:37,173 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 21:00:37,173 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 21:00:37,174 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 21:00:37,174 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 21:00:37,174 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 21:00:37,174 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 21:00:37,175 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9d6690f5-2e8d-417b-8196-2192c9f3c09d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-08 21:00:37,184 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 21:00:37,185 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 21:00:37,185 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 21:00:37,185 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 21:00:37,186 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 21:00:37,186 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 21:00:37,186 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 21:00:37,186 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 21:00:37,186 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 21:00:37,186 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 21:00:37,187 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 21:00:37,187 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 21:00:37,187 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 21:00:37,187 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 21:00:37,187 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 21:00:37,188 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 21:00:37,188 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 21:00:37,188 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 21:00:37,188 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 21:00:37,188 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 21:00:37,188 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 21:00:37,189 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 21:00:37,189 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 21:00:37,189 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 21:00:37,189 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 21:00:37,189 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 21:00:37,189 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 21:00:37,189 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 21:00:37,190 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 21:00:37,190 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 21:00:37,190 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 21:00:37,190 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-08 21:00:37,190 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 21:00:37,190 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 21:00:37,191 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-08 21:00:37,191 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_9d6690f5-2e8d-417b-8196-2192c9f3c09d/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 -> 8be2489bdcd97218605067fa4593696f9050abdf [2018-12-08 21:00:37,214 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 21:00:37,221 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 21:00:37,224 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 21:00:37,225 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 21:00:37,225 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 21:00:37,225 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9d6690f5-2e8d-417b-8196-2192c9f3c09d/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/double_req_bl_1092a_true-unreach-call.c [2018-12-08 21:00:37,262 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9d6690f5-2e8d-417b-8196-2192c9f3c09d/bin-2019/utaipan/data/6755791f2/8380977d01354a06a32bd58bd56c798a/FLAGc91409247 [2018-12-08 21:00:37,679 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 21:00:37,680 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9d6690f5-2e8d-417b-8196-2192c9f3c09d/sv-benchmarks/c/float-newlib/double_req_bl_1092a_true-unreach-call.c [2018-12-08 21:00:37,684 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9d6690f5-2e8d-417b-8196-2192c9f3c09d/bin-2019/utaipan/data/6755791f2/8380977d01354a06a32bd58bd56c798a/FLAGc91409247 [2018-12-08 21:00:37,692 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9d6690f5-2e8d-417b-8196-2192c9f3c09d/bin-2019/utaipan/data/6755791f2/8380977d01354a06a32bd58bd56c798a [2018-12-08 21:00:37,694 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 21:00:37,695 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 21:00:37,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 21:00:37,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 21:00:37,698 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 21:00:37,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 09:00:37" (1/1) ... [2018-12-08 21:00:37,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3af796df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:00:37, skipping insertion in model container [2018-12-08 21:00:37,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 09:00:37" (1/1) ... [2018-12-08 21:00:37,704 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 21:00:37,716 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 21:00:37,824 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 21:00:37,828 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 21:00:37,852 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 21:00:37,871 INFO L195 MainTranslator]: Completed translation [2018-12-08 21:00:37,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:00:37 WrapperNode [2018-12-08 21:00:37,871 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 21:00:37,872 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 21:00:37,872 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 21:00:37,872 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 21:00:37,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:00:37" (1/1) ... [2018-12-08 21:00:37,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:00:37" (1/1) ... [2018-12-08 21:00:37,890 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 21:00:37,891 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 21:00:37,891 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 21:00:37,891 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 21:00:37,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:00:37" (1/1) ... [2018-12-08 21:00:37,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:00:37" (1/1) ... [2018-12-08 21:00:37,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:00:37" (1/1) ... [2018-12-08 21:00:37,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:00:37" (1/1) ... [2018-12-08 21:00:37,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:00:37" (1/1) ... [2018-12-08 21:00:37,946 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:00:37" (1/1) ... [2018-12-08 21:00:37,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:00:37" (1/1) ... [2018-12-08 21:00:37,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 21:00:37,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 21:00:37,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 21:00:37,951 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 21:00:37,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:00:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9d6690f5-2e8d-417b-8196-2192c9f3c09d/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 21:00:37,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-12-08 21:00:37,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 21:00:37,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 21:00:37,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 21:00:37,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-08 21:00:37,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-12-08 21:00:37,984 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-12-08 21:00:37,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-12-08 21:00:37,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 21:00:37,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 21:00:37,984 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 21:00:37,984 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 21:00:37,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-08 21:00:37,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 21:00:38,156 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 21:00:38,748 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 21:00:38,748 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-08 21:00:38,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:00:38 BoogieIcfgContainer [2018-12-08 21:00:38,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 21:00:38,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 21:00:38,749 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 21:00:38,750 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 21:00:38,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 09:00:37" (1/3) ... [2018-12-08 21:00:38,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b97b390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 09:00:38, skipping insertion in model container [2018-12-08 21:00:38,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:00:37" (2/3) ... [2018-12-08 21:00:38,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b97b390 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 09:00:38, skipping insertion in model container [2018-12-08 21:00:38,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:00:38" (3/3) ... [2018-12-08 21:00:38,752 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092a_true-unreach-call.c [2018-12-08 21:00:38,757 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 21:00:38,761 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 21:00:38,770 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 21:00:38,786 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 21:00:38,786 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 21:00:38,786 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 21:00:38,786 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 21:00:38,786 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 21:00:38,786 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 21:00:38,787 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 21:00:38,787 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 21:00:38,787 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 21:00:38,795 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-12-08 21:00:38,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-08 21:00:38,799 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:00:38,799 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:00:38,800 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:00:38,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:00:38,803 INFO L82 PathProgramCache]: Analyzing trace with hash 593324774, now seen corresponding path program 1 times [2018-12-08 21:00:38,806 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 21:00:38,806 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9d6690f5-2e8d-417b-8196-2192c9f3c09d/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-08 21:00:38,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:00:38,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:00:38,853 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 21:00:38,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 21:00:38,865 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 21:00:38,873 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 21:00:38,873 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 21:00:38,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 21:00:38,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 21:00:38,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 21:00:38,884 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-12-08 21:00:38,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:00:38,897 INFO L93 Difference]: Finished difference Result 76 states and 114 transitions. [2018-12-08 21:00:38,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 21:00:38,898 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-12-08 21:00:38,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:00:38,904 INFO L225 Difference]: With dead ends: 76 [2018-12-08 21:00:38,904 INFO L226 Difference]: Without dead ends: 38 [2018-12-08 21:00:38,906 INFO L631 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 [2018-12-08 21:00:38,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-12-08 21:00:38,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-12-08 21:00:38,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-08 21:00:38,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 52 transitions. [2018-12-08 21:00:38,928 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 52 transitions. Word has length 18 [2018-12-08 21:00:38,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:00:38,929 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 52 transitions. [2018-12-08 21:00:38,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 21:00:38,929 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 52 transitions. [2018-12-08 21:00:38,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-08 21:00:38,929 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:00:38,929 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:00:38,929 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:00:38,930 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:00:38,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1268028223, now seen corresponding path program 1 times [2018-12-08 21:00:38,930 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 21:00:38,930 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9d6690f5-2e8d-417b-8196-2192c9f3c09d/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-08 21:00:38,933 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:00:38,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:00:38,971 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 21:00:39,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 21:00:39,096 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 21:00:39,103 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 21:00:39,103 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 21:00:39,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 21:00:39,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 21:00:39,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 21:00:39,105 INFO L87 Difference]: Start difference. First operand 38 states and 52 transitions. Second operand 7 states. [2018-12-08 21:00:41,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:00:41,629 INFO L93 Difference]: Finished difference Result 62 states and 75 transitions. [2018-12-08 21:00:41,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-08 21:00:41,629 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-12-08 21:00:41,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:00:41,631 INFO L225 Difference]: With dead ends: 62 [2018-12-08 21:00:41,631 INFO L226 Difference]: Without dead ends: 30 [2018-12-08 21:00:41,632 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2018-12-08 21:00:41,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-12-08 21:00:41,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2018-12-08 21:00:41,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-12-08 21:00:41,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2018-12-08 21:00:41,635 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 19 [2018-12-08 21:00:41,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:00:41,635 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2018-12-08 21:00:41,635 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 21:00:41,635 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2018-12-08 21:00:41,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-08 21:00:41,636 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:00:41,636 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:00:41,636 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:00:41,637 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:00:41,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1067163641, now seen corresponding path program 1 times [2018-12-08 21:00:41,637 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 21:00:41,637 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9d6690f5-2e8d-417b-8196-2192c9f3c09d/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-08 21:00:41,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:00:41,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:00:41,732 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 21:00:43,531 WARN L180 SmtUtils]: Spent 656.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-12-08 21:00:43,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 21:00:43,535 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 21:00:43,544 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 21:00:43,544 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 21:00:43,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 21:00:43,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 21:00:43,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-08 21:00:43,545 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 6 states. [2018-12-08 21:00:46,459 WARN L180 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 13 [2018-12-08 21:00:47,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:00:47,323 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2018-12-08 21:00:47,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 21:00:47,330 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2018-12-08 21:00:47,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:00:47,331 INFO L225 Difference]: With dead ends: 34 [2018-12-08 21:00:47,331 INFO L226 Difference]: Without dead ends: 25 [2018-12-08 21:00:47,331 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-08 21:00:47,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-12-08 21:00:47,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-12-08 21:00:47,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-12-08 21:00:47,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2018-12-08 21:00:47,334 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 22 [2018-12-08 21:00:47,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:00:47,334 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2018-12-08 21:00:47,334 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 21:00:47,334 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2018-12-08 21:00:47,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-08 21:00:47,334 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:00:47,334 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:00:47,335 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:00:47,335 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:00:47,335 INFO L82 PathProgramCache]: Analyzing trace with hash -232086029, now seen corresponding path program 1 times [2018-12-08 21:00:47,335 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 21:00:47,335 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9d6690f5-2e8d-417b-8196-2192c9f3c09d/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-08 21:00:47,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:00:47,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:00:47,429 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 21:00:47,453 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 39 [2018-12-08 21:00:47,456 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 36 [2018-12-08 21:00:47,465 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 15 [2018-12-08 21:00:47,465 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-08 21:00:47,467 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 21:00:47,470 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-08 21:00:47,472 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-08 21:00:47,472 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:45, output treesize:15 [2018-12-08 21:00:47,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 21:00:47,536 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 21:00:47,544 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 21:00:47,544 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-08 21:00:47,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 21:00:47,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 21:00:47,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-12-08 21:00:47,545 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 8 states. [2018-12-08 21:00:47,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:00:47,773 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2018-12-08 21:00:47,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 21:00:47,774 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-12-08 21:00:47,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:00:47,774 INFO L225 Difference]: With dead ends: 34 [2018-12-08 21:00:47,775 INFO L226 Difference]: Without dead ends: 25 [2018-12-08 21:00:47,775 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-12-08 21:00:47,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-12-08 21:00:47,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-12-08 21:00:47,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-12-08 21:00:47,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2018-12-08 21:00:47,777 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 23 [2018-12-08 21:00:47,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:00:47,777 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2018-12-08 21:00:47,777 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 21:00:47,778 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2018-12-08 21:00:47,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-08 21:00:47,778 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 21:00:47,778 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 21:00:47,778 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 21:00:47,778 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 21:00:47,778 INFO L82 PathProgramCache]: Analyzing trace with hash 785443165, now seen corresponding path program 1 times [2018-12-08 21:00:47,779 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 21:00:47,779 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9d6690f5-2e8d-417b-8196-2192c9f3c09d/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-12-08 21:00:47,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 21:00:47,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 21:00:47,873 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 21:00:47,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 21:00:47,932 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 21:00:47,940 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 21:00:47,940 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 21:00:47,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 21:00:47,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 21:00:47,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 21:00:47,941 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand 6 states. [2018-12-08 21:00:48,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 21:00:48,466 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2018-12-08 21:00:48,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-08 21:00:48,467 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-12-08 21:00:48,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 21:00:48,467 INFO L225 Difference]: With dead ends: 30 [2018-12-08 21:00:48,467 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 21:00:48,468 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-12-08 21:00:48,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 21:00:48,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 21:00:48,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 21:00:48,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 21:00:48,468 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2018-12-08 21:00:48,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 21:00:48,468 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 21:00:48,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 21:00:48,469 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 21:00:48,469 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 21:00:48,473 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 21:00:48,575 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-08 21:00:48,575 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-08 21:00:48,575 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 21:00:48,575 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 39) no Hoare annotation was computed. [2018-12-08 21:00:48,575 INFO L448 ceAbstractionStarter]: For program point L60(lines 60 72) no Hoare annotation was computed. [2018-12-08 21:00:48,575 INFO L448 ceAbstractionStarter]: For program point L52(lines 52 55) no Hoare annotation was computed. [2018-12-08 21:00:48,576 INFO L448 ceAbstractionStarter]: For program point L44(lines 44 49) no Hoare annotation was computed. [2018-12-08 21:00:48,576 INFO L448 ceAbstractionStarter]: For program point L32(lines 32 38) no Hoare annotation was computed. [2018-12-08 21:00:48,576 INFO L448 ceAbstractionStarter]: For program point L61(lines 61 70) no Hoare annotation was computed. [2018-12-08 21:00:48,576 INFO L448 ceAbstractionStarter]: For program point L61-1(lines 61 70) no Hoare annotation was computed. [2018-12-08 21:00:48,576 INFO L448 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-12-08 21:00:48,576 INFO L448 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-12-08 21:00:48,576 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 79) no Hoare annotation was computed. [2018-12-08 21:00:48,576 INFO L448 ceAbstractionStarter]: For program point L74-1(lines 19 81) no Hoare annotation was computed. [2018-12-08 21:00:48,576 INFO L448 ceAbstractionStarter]: For program point L74-2(lines 74 79) no Hoare annotation was computed. [2018-12-08 21:00:48,577 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 67) no Hoare annotation was computed. [2018-12-08 21:00:48,577 INFO L448 ceAbstractionStarter]: For program point L66-2(lines 66 67) no Hoare annotation was computed. [2018-12-08 21:00:48,577 INFO L448 ceAbstractionStarter]: For program point L62(lines 62 69) no Hoare annotation was computed. [2018-12-08 21:00:48,577 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 73) no Hoare annotation was computed. [2018-12-08 21:00:48,577 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 59) no Hoare annotation was computed. [2018-12-08 21:00:48,577 INFO L451 ceAbstractionStarter]: At program point ceil_doubleENTRY(lines 19 81) the Hoare annotation is: true [2018-12-08 21:00:48,577 INFO L448 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2018-12-08 21:00:48,577 INFO L448 ceAbstractionStarter]: For program point ceil_doubleFINAL(lines 19 81) no Hoare annotation was computed. [2018-12-08 21:00:48,577 INFO L448 ceAbstractionStarter]: For program point ceil_doubleEXIT(lines 19 81) no Hoare annotation was computed. [2018-12-08 21:00:48,577 INFO L448 ceAbstractionStarter]: For program point L30(lines 30 50) no Hoare annotation was computed. [2018-12-08 21:00:48,578 INFO L448 ceAbstractionStarter]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2018-12-08 21:00:48,578 INFO L444 ceAbstractionStarter]: At program point L22-2(lines 22 27) the Hoare annotation is: (or (not (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_ceil~0)) (= |ceil_double_#in~x| ceil_double_~x)) [2018-12-08 21:00:48,578 INFO L448 ceAbstractionStarter]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2018-12-08 21:00:48,578 INFO L448 ceAbstractionStarter]: For program point L51(lines 51 73) no Hoare annotation was computed. [2018-12-08 21:00:48,578 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 38) no Hoare annotation was computed. [2018-12-08 21:00:48,578 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 21:00:48,579 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_ceil~0) [2018-12-08 21:00:48,579 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 21:00:48,579 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 21:00:48,579 INFO L448 ceAbstractionStarter]: For program point L96(line 96) no Hoare annotation was computed. [2018-12-08 21:00:48,579 INFO L448 ceAbstractionStarter]: For program point L95(lines 95 98) no Hoare annotation was computed. [2018-12-08 21:00:48,579 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 83 101) the Hoare annotation is: true [2018-12-08 21:00:48,579 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 83 101) no Hoare annotation was computed. [2018-12-08 21:00:48,579 INFO L444 ceAbstractionStarter]: At program point L92(line 92) the Hoare annotation is: (or (not (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_ceil~0)) (= main_~x~0 (fp.neg (_ +zero 11 53)))) [2018-12-08 21:00:48,580 INFO L448 ceAbstractionStarter]: For program point L92-1(line 92) no Hoare annotation was computed. [2018-12-08 21:00:48,580 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 83 101) no Hoare annotation was computed. [2018-12-08 21:00:48,580 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 96) no Hoare annotation was computed. [2018-12-08 21:00:48,586 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 21:00:48,589 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 21:00:48,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 09:00:48 BoogieIcfgContainer [2018-12-08 21:00:48,590 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 21:00:48,590 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 21:00:48,590 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 21:00:48,591 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 21:00:48,591 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:00:38" (3/4) ... [2018-12-08 21:00:48,593 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 21:00:48,597 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 21:00:48,597 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_double [2018-12-08 21:00:48,598 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 21:00:48,602 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-12-08 21:00:48,602 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-12-08 21:00:48,602 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-08 21:00:48,620 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_ceil) || \old(x) == x [2018-12-08 21:00:48,640 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9d6690f5-2e8d-417b-8196-2192c9f3c09d/bin-2019/utaipan/witness.graphml [2018-12-08 21:00:48,640 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 21:00:48,640 INFO L168 Benchmark]: Toolchain (without parser) took 10946.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 943.4 MB in the beginning and 909.6 MB in the end (delta: 33.8 MB). Peak memory consumption was 180.6 MB. Max. memory is 11.5 GB. [2018-12-08 21:00:48,641 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 21:00:48,641 INFO L168 Benchmark]: CACSL2BoogieTranslator took 176.34 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-08 21:00:48,642 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.55 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 21:00:48,642 INFO L168 Benchmark]: Boogie Preprocessor took 59.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -207.8 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. [2018-12-08 21:00:48,642 INFO L168 Benchmark]: RCFGBuilder took 797.37 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: 31.3 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. [2018-12-08 21:00:48,642 INFO L168 Benchmark]: TraceAbstraction took 9841.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 916.3 MB in the end (delta: 187.5 MB). Peak memory consumption was 187.5 MB. Max. memory is 11.5 GB. [2018-12-08 21:00:48,642 INFO L168 Benchmark]: Witness Printer took 49.42 ms. Allocated memory is still 1.2 GB. Free memory was 916.3 MB in the beginning and 909.6 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-12-08 21:00:48,644 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 176.34 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 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 18.55 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 59.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -207.8 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 797.37 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: 31.3 MB). Peak memory consumption was 31.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9841.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 916.3 MB in the end (delta: 187.5 MB). Peak memory consumption was 187.5 MB. Max. memory is 11.5 GB. * Witness Printer took 49.42 ms. Allocated memory is still 1.2 GB. Free memory was 916.3 MB in the beginning and 909.6 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 96]: 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: 22]: Loop Invariant [2018-12-08 21:00:48,646 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-08 21:00:48,647 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_ceil) || \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 42 locations, 1 error locations. SAFE Result, 9.7s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 7.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 140 SDtfs, 176 SDslu, 250 SDs, 0 SdLazy, 201 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 80 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 5 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 8 NumberOfFragments, 30 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 34 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 101 ConstructedInterpolants, 19 QuantifiedInterpolants, 13819 SizeOfPredicates, 15 NumberOfNonLiveVariables, 310 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...