./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1052d_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052d_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/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 8314f0a25d0cae1024b24eed74020923c3a8036e ......................................................................................................................................................................................................................................................................................................... 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_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052d_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/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 8314f0a25d0cae1024b24eed74020923c3a8036e ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:16:26,535 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:16:26,537 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:16:26,545 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:16:26,545 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:16:26,546 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:16:26,547 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:16:26,548 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:16:26,549 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:16:26,550 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:16:26,551 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:16:26,551 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:16:26,551 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:16:26,553 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:16:26,554 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:16:26,554 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:16:26,555 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:16:26,556 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:16:26,558 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:16:26,559 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:16:26,560 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:16:26,561 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:16:26,563 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:16:26,563 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:16:26,563 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:16:26,564 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:16:26,565 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:16:26,566 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:16:26,566 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:16:26,568 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:16:26,568 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:16:26,568 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:16:26,568 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:16:26,569 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:16:26,569 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:16:26,570 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:16:26,570 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 12:16:26,581 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:16:26,581 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:16:26,582 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:16:26,582 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 12:16:26,582 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 12:16:26,582 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 12:16:26,583 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 12:16:26,583 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 12:16:26,583 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 12:16:26,583 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 12:16:26,583 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 12:16:26,583 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 12:16:26,583 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 12:16:26,584 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:16:26,584 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:16:26,584 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:16:26,584 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:16:26,585 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:16:26,585 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:16:26,585 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:16:26,585 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:16:26,585 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:16:26,585 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:16:26,585 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:16:26,586 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:16:26,586 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:16:26,586 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:16:26,586 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:16:26,586 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:16:26,586 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:16:26,586 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:16:26,587 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:16:26,587 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:16:26,587 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 12:16:26,587 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:16:26,587 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:16:26,587 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 12:16:26,587 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_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/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 -> 8314f0a25d0cae1024b24eed74020923c3a8036e [2018-11-18 12:16:26,611 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:16:26,620 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:16:26,623 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:16:26,624 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:16:26,624 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:16:26,625 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1052d_true-unreach-call.c [2018-11-18 12:16:26,667 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/bin-2019/utaipan/data/df0de0cef/fceae1ab329c423ba3c72bd6760b86e7/FLAG82fa4a1d5 [2018-11-18 12:16:26,998 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:16:26,999 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/sv-benchmarks/c/float-newlib/float_req_bl_1052d_true-unreach-call.c [2018-11-18 12:16:27,005 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/bin-2019/utaipan/data/df0de0cef/fceae1ab329c423ba3c72bd6760b86e7/FLAG82fa4a1d5 [2018-11-18 12:16:27,428 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/bin-2019/utaipan/data/df0de0cef/fceae1ab329c423ba3c72bd6760b86e7 [2018-11-18 12:16:27,430 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:16:27,431 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:16:27,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:16:27,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:16:27,435 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:16:27,435 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:16:27" (1/1) ... [2018-11-18 12:16:27,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23fecd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:16:27, skipping insertion in model container [2018-11-18 12:16:27,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:16:27" (1/1) ... [2018-11-18 12:16:27,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:16:27,458 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:16:27,583 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:16:27,586 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:16:27,601 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:16:27,614 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:16:27,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:16:27 WrapperNode [2018-11-18 12:16:27,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:16:27,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:16:27,615 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:16:27,615 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:16:27,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:16:27" (1/1) ... [2018-11-18 12:16:27,628 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:16:27" (1/1) ... [2018-11-18 12:16:27,634 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:16:27,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:16:27,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:16:27,634 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:16:27,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:16:27" (1/1) ... [2018-11-18 12:16:27,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:16:27" (1/1) ... [2018-11-18 12:16:27,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:16:27" (1/1) ... [2018-11-18 12:16:27,643 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:16:27" (1/1) ... [2018-11-18 12:16:27,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:16:27" (1/1) ... [2018-11-18 12:16:27,652 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:16:27" (1/1) ... [2018-11-18 12:16:27,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:16:27" (1/1) ... [2018-11-18 12:16:27,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:16:27,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:16:27,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:16:27,656 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:16:27,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:16:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:16:27,731 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:16:27,731 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:16:27,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 12:16:27,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 12:16:27,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:16:27,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:16:27,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 12:16:27,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:16:27,732 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-11-18 12:16:27,732 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-11-18 12:16:27,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:16:27,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:16:27,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 12:16:27,732 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-18 12:16:27,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-18 12:16:27,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 12:16:27,908 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:16:27,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:16:27 BoogieIcfgContainer [2018-11-18 12:16:27,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:16:27,909 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:16:27,910 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:16:27,911 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:16:27,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:16:27" (1/3) ... [2018-11-18 12:16:27,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@710c2d86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:16:27, skipping insertion in model container [2018-11-18 12:16:27,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:16:27" (2/3) ... [2018-11-18 12:16:27,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@710c2d86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:16:27, skipping insertion in model container [2018-11-18 12:16:27,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:16:27" (3/3) ... [2018-11-18 12:16:27,914 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052d_true-unreach-call.c [2018-11-18 12:16:27,922 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:16:27,926 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:16:27,936 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:16:27,955 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:16:27,955 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:16:27,955 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:16:27,955 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:16:27,955 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:16:27,955 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:16:27,955 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:16:27,955 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:16:27,968 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-11-18 12:16:27,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 12:16:27,972 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:16:27,972 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:16:27,974 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:16:27,978 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:16:27,978 INFO L82 PathProgramCache]: Analyzing trace with hash -664054432, now seen corresponding path program 1 times [2018-11-18 12:16:27,979 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:16:28,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:16:28,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:16:28,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:16:28,016 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:16:28,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:16:28,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:16:28,069 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:16:28,069 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:16:28,069 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 12:16:28,071 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 12:16:28,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 12:16:28,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:16:28,081 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-11-18 12:16:28,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:16:28,096 INFO L93 Difference]: Finished difference Result 78 states and 111 transitions. [2018-11-18 12:16:28,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 12:16:28,097 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-18 12:16:28,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:16:28,103 INFO L225 Difference]: With dead ends: 78 [2018-11-18 12:16:28,104 INFO L226 Difference]: Without dead ends: 39 [2018-11-18 12:16:28,106 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:16:28,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-18 12:16:28,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-11-18 12:16:28,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-18 12:16:28,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2018-11-18 12:16:28,132 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 18 [2018-11-18 12:16:28,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:16:28,132 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-11-18 12:16:28,132 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 12:16:28,133 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2018-11-18 12:16:28,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 12:16:28,133 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:16:28,134 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:16:28,134 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:16:28,134 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:16:28,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1930962372, now seen corresponding path program 1 times [2018-11-18 12:16:28,134 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 12:16:28,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:16:28,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:16:28,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:16:28,136 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 12:16:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:16:28,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:16:28,205 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 12:16:28,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:16:28 BoogieIcfgContainer [2018-11-18 12:16:28,223 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:16:28,224 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:16:28,224 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:16:28,224 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:16:28,224 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:16:27" (3/4) ... [2018-11-18 12:16:28,226 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 12:16:28,227 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:16:28,227 INFO L168 Benchmark]: Toolchain (without parser) took 796.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -132.2 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:16:28,228 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:16:28,228 INFO L168 Benchmark]: CACSL2BoogieTranslator took 183.40 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 945.5 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-11-18 12:16:28,229 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.75 ms. Allocated memory is still 1.0 GB. Free memory is still 945.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:16:28,229 INFO L168 Benchmark]: Boogie Preprocessor took 21.19 ms. Allocated memory is still 1.0 GB. Free memory was 945.5 MB in the beginning and 942.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:16:28,229 INFO L168 Benchmark]: RCFGBuilder took 253.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 942.8 MB in the beginning and 1.1 GB in the end (delta: -171.2 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2018-11-18 12:16:28,230 INFO L168 Benchmark]: TraceAbstraction took 313.85 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: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:16:28,230 INFO L168 Benchmark]: Witness Printer took 3.11 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:16:28,232 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 183.40 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 945.5 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.75 ms. Allocated memory is still 1.0 GB. Free memory is still 945.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.19 ms. Allocated memory is still 1.0 GB. Free memory was 945.5 MB in the beginning and 942.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 253.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 942.8 MB in the beginning and 1.1 GB in the end (delta: -171.2 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 313.85 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: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.11 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 80]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 79, overapproximation of bitwiseAnd at line 21. Possible FailurePath: [L11] static const float huge_floor = 1.0e30; VAL [\old(huge_floor)=2147483649, huge_floor=1000000000000000000000000000000] [L75] float x = 0.0f; VAL [huge_floor=1000000000000000000000000000000, x=0] [L76] CALL, EXPR floor_float(x) VAL [\old(x)=0, huge_floor=1000000000000000000000000000000] [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [\old(x)=0, huge_floor=1000000000000000000000000000000, x=0] [L17] FCALL ieee_float_shape_type gf_u; [L18] FCALL gf_u.value = (x) [L19] EXPR, FCALL gf_u.word [L19] (i0) = gf_u.word [L20] COND FALSE !(0) VAL [\old(x)=0, huge_floor=1000000000000000000000000000000, i0=2, x=0] [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [\old(x)=0, huge_floor=1000000000000000000000000000000, i=-18014397452517376, i0=2, j0=2147483647, x=0] [L23] COND FALSE !(j0 < 23) VAL [\old(x)=0, huge_floor=1000000000000000000000000000000, i=-18014397452517376, i0=2, j0=2147483647, x=0] [L43] COND FALSE !(!((ix) < 0x7f800000L)) [L46] RET return x; VAL [\old(x)=0, \result=0, huge_floor=1000000000000000000000000000000, i=-18014397452517376, i0=2, j0=2147483647, x=0] [L76] EXPR floor_float(x) VAL [floor_float(x)=0, huge_floor=1000000000000000000000000000000, x=0] [L76] float res = floor_float(x); [L79] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [huge_floor=1000000000000000000000000000000, res=0, res == 0.0f && __signbit_float(res) == 0=0, x=0] [L79] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L80] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000, res=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 52 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 12:16:29,724 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:16:29,726 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:16:29,735 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:16:29,736 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:16:29,736 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:16:29,737 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:16:29,739 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:16:29,740 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:16:29,741 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:16:29,741 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:16:29,742 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:16:29,742 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:16:29,743 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:16:29,744 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:16:29,744 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:16:29,745 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:16:29,747 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:16:29,748 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:16:29,749 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:16:29,750 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:16:29,751 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:16:29,753 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:16:29,753 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:16:29,753 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:16:29,754 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:16:29,755 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:16:29,756 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:16:29,756 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:16:29,757 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:16:29,757 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:16:29,758 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:16:29,758 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:16:29,758 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:16:29,759 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:16:29,759 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:16:29,760 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 12:16:29,771 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:16:29,771 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:16:29,772 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:16:29,772 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 12:16:29,772 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 12:16:29,773 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 12:16:29,773 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 12:16:29,773 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 12:16:29,773 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 12:16:29,773 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 12:16:29,774 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:16:29,774 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:16:29,774 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:16:29,774 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:16:29,774 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:16:29,775 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:16:29,775 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:16:29,775 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 12:16:29,775 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 12:16:29,775 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:16:29,775 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:16:29,775 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:16:29,776 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:16:29,776 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:16:29,776 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:16:29,776 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:16:29,776 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:16:29,776 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:16:29,777 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:16:29,777 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:16:29,777 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:16:29,777 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 12:16:29,777 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:16:29,777 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 12:16:29,777 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 12:16:29,778 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_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/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 -> 8314f0a25d0cae1024b24eed74020923c3a8036e [2018-11-18 12:16:29,811 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:16:29,820 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:16:29,823 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:16:29,824 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:16:29,824 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:16:29,825 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1052d_true-unreach-call.c [2018-11-18 12:16:29,872 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/bin-2019/utaipan/data/b8602eb01/96f30193061247cfb8e0f83c0f0ce730/FLAG021fbe1b7 [2018-11-18 12:16:30,199 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:16:30,200 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/sv-benchmarks/c/float-newlib/float_req_bl_1052d_true-unreach-call.c [2018-11-18 12:16:30,204 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/bin-2019/utaipan/data/b8602eb01/96f30193061247cfb8e0f83c0f0ce730/FLAG021fbe1b7 [2018-11-18 12:16:30,631 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/bin-2019/utaipan/data/b8602eb01/96f30193061247cfb8e0f83c0f0ce730 [2018-11-18 12:16:30,633 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:16:30,634 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:16:30,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:16:30,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:16:30,637 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:16:30,637 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:16:30" (1/1) ... [2018-11-18 12:16:30,639 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eb5b9f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:16:30, skipping insertion in model container [2018-11-18 12:16:30,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:16:30" (1/1) ... [2018-11-18 12:16:30,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:16:30,663 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:16:30,797 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:16:30,802 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:16:30,821 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:16:30,836 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:16:30,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:16:30 WrapperNode [2018-11-18 12:16:30,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:16:30,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:16:30,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:16:30,837 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:16:30,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:16:30" (1/1) ... [2018-11-18 12:16:30,849 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:16:30" (1/1) ... [2018-11-18 12:16:30,854 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:16:30,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:16:30,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:16:30,854 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:16:30,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:16:30" (1/1) ... [2018-11-18 12:16:30,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:16:30" (1/1) ... [2018-11-18 12:16:30,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:16:30" (1/1) ... [2018-11-18 12:16:30,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:16:30" (1/1) ... [2018-11-18 12:16:30,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:16:30" (1/1) ... [2018-11-18 12:16:30,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:16:30" (1/1) ... [2018-11-18 12:16:30,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:16:30" (1/1) ... [2018-11-18 12:16:30,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:16:30,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:16:30,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:16:30,880 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:16:30,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:16:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:16:30,967 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:16:30,967 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:16:30,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 12:16:30,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:16:30,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:16:30,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:16:30,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 12:16:30,968 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-11-18 12:16:30,968 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-11-18 12:16:30,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:16:30,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:16:30,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 12:16:30,968 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-18 12:16:30,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-18 12:16:30,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 12:16:30,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 12:16:31,516 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:16:31,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:16:31 BoogieIcfgContainer [2018-11-18 12:16:31,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:16:31,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:16:31,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:16:31,519 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:16:31,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:16:30" (1/3) ... [2018-11-18 12:16:31,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b9ca3a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:16:31, skipping insertion in model container [2018-11-18 12:16:31,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:16:30" (2/3) ... [2018-11-18 12:16:31,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b9ca3a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:16:31, skipping insertion in model container [2018-11-18 12:16:31,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:16:31" (3/3) ... [2018-11-18 12:16:31,521 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052d_true-unreach-call.c [2018-11-18 12:16:31,527 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:16:31,532 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:16:31,542 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:16:31,564 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:16:31,564 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:16:31,564 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:16:31,564 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:16:31,565 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:16:31,565 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:16:31,565 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:16:31,565 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:16:31,565 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:16:31,576 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-11-18 12:16:31,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 12:16:31,581 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:16:31,582 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:16:31,584 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:16:31,587 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:16:31,588 INFO L82 PathProgramCache]: Analyzing trace with hash -664054432, now seen corresponding path program 1 times [2018-11-18 12:16:31,590 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:16:31,590 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-18 12:16:31,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:16:31,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:16:31,642 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:16:31,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:16:31,653 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:16:31,666 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:16:31,667 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:16:31,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 12:16:31,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 12:16:31,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:16:31,681 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-11-18 12:16:31,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:16:31,695 INFO L93 Difference]: Finished difference Result 78 states and 111 transitions. [2018-11-18 12:16:31,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 12:16:31,696 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-18 12:16:31,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:16:31,703 INFO L225 Difference]: With dead ends: 78 [2018-11-18 12:16:31,703 INFO L226 Difference]: Without dead ends: 39 [2018-11-18 12:16:31,705 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:16:31,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-18 12:16:31,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-11-18 12:16:31,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-18 12:16:31,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2018-11-18 12:16:31,735 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 48 transitions. Word has length 18 [2018-11-18 12:16:31,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:16:31,736 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-11-18 12:16:31,736 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 12:16:31,737 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 48 transitions. [2018-11-18 12:16:31,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 12:16:31,737 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:16:31,737 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:16:31,738 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:16:31,738 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:16:31,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1930962372, now seen corresponding path program 1 times [2018-11-18 12:16:31,739 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:16:31,739 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-18 12:16:31,749 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:16:31,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:16:31,781 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:16:31,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:16:31,909 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:16:31,919 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:16:31,919 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 12:16:31,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:16:31,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:16:31,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:16:31,921 INFO L87 Difference]: Start difference. First operand 39 states and 48 transitions. Second operand 7 states. [2018-11-18 12:16:32,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:16:32,907 INFO L93 Difference]: Finished difference Result 60 states and 69 transitions. [2018-11-18 12:16:32,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 12:16:32,908 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-11-18 12:16:32,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:16:32,910 INFO L225 Difference]: With dead ends: 60 [2018-11-18 12:16:32,910 INFO L226 Difference]: Without dead ends: 44 [2018-11-18 12:16:32,911 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 12:16:32,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-18 12:16:32,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 38. [2018-11-18 12:16:32,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-18 12:16:32,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2018-11-18 12:16:32,915 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 19 [2018-11-18 12:16:32,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:16:32,915 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2018-11-18 12:16:32,916 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:16:32,916 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2018-11-18 12:16:32,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 12:16:32,916 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:16:32,916 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:16:32,917 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:16:32,917 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:16:32,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1376484092, now seen corresponding path program 1 times [2018-11-18 12:16:32,917 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:16:32,918 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-18 12:16:32,926 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:16:32,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:16:32,953 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:16:33,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:16:33,021 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:16:33,028 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:16:33,028 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 12:16:33,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:16:33,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:16:33,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:16:33,029 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand 7 states. [2018-11-18 12:16:33,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:16:33,849 INFO L93 Difference]: Finished difference Result 67 states and 74 transitions. [2018-11-18 12:16:33,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 12:16:33,850 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-11-18 12:16:33,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:16:33,851 INFO L225 Difference]: With dead ends: 67 [2018-11-18 12:16:33,851 INFO L226 Difference]: Without dead ends: 39 [2018-11-18 12:16:33,852 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-11-18 12:16:33,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-18 12:16:33,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2018-11-18 12:16:33,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-18 12:16:33,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-11-18 12:16:33,856 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 20 [2018-11-18 12:16:33,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:16:33,856 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-11-18 12:16:33,856 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:16:33,856 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-11-18 12:16:33,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 12:16:33,857 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:16:33,857 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:16:33,857 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:16:33,857 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:16:33,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1666542110, now seen corresponding path program 1 times [2018-11-18 12:16:33,857 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:16:33,858 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-18 12:16:33,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:16:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:16:33,904 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:16:34,895 WARN L180 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-18 12:16:34,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:16:34,901 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:16:34,913 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:16:34,913 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 12:16:34,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:16:34,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:16:34,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:16:34,914 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 6 states. [2018-11-18 12:16:35,909 WARN L180 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-18 12:16:36,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:16:36,317 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-11-18 12:16:36,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:16:36,321 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-11-18 12:16:36,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:16:36,322 INFO L225 Difference]: With dead ends: 52 [2018-11-18 12:16:36,322 INFO L226 Difference]: Without dead ends: 34 [2018-11-18 12:16:36,322 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:16:36,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-18 12:16:36,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-18 12:16:36,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-18 12:16:36,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2018-11-18 12:16:36,326 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 23 [2018-11-18 12:16:36,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:16:36,326 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2018-11-18 12:16:36,326 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:16:36,326 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-11-18 12:16:36,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 12:16:36,327 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:16:36,327 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:16:36,327 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:16:36,328 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:16:36,328 INFO L82 PathProgramCache]: Analyzing trace with hash 66145073, now seen corresponding path program 1 times [2018-11-18 12:16:36,328 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:16:36,328 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-18 12:16:36,331 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:16:36,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:16:36,377 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:16:36,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:16:36,412 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:16:36,420 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:16:36,420 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 12:16:36,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 12:16:36,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:16:36,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:16:36,421 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand 7 states. [2018-11-18 12:16:36,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:16:36,525 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2018-11-18 12:16:36,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:16:36,526 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-18 12:16:36,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:16:36,526 INFO L225 Difference]: With dead ends: 44 [2018-11-18 12:16:36,526 INFO L226 Difference]: Without dead ends: 41 [2018-11-18 12:16:36,527 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 12:16:36,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-18 12:16:36,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-18 12:16:36,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-18 12:16:36,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2018-11-18 12:16:36,532 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 24 [2018-11-18 12:16:36,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:16:36,532 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2018-11-18 12:16:36,532 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 12:16:36,532 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2018-11-18 12:16:36,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 12:16:36,532 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:16:36,532 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:16:36,533 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:16:36,533 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:16:36,533 INFO L82 PathProgramCache]: Analyzing trace with hash -173589656, now seen corresponding path program 1 times [2018-11-18 12:16:36,533 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:16:36,533 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-18 12:16:36,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:16:36,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:16:36,583 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:16:36,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:16:36,637 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:16:36,645 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:16:36,645 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 12:16:36,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 12:16:36,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 12:16:36,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:16:36,646 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 6 states. [2018-11-18 12:16:36,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:16:36,894 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2018-11-18 12:16:36,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 12:16:36,895 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-11-18 12:16:36,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:16:36,896 INFO L225 Difference]: With dead ends: 57 [2018-11-18 12:16:36,896 INFO L226 Difference]: Without dead ends: 33 [2018-11-18 12:16:36,896 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-11-18 12:16:36,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-18 12:16:36,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-18 12:16:36,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-18 12:16:36,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 32 transitions. [2018-11-18 12:16:36,899 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 32 transitions. Word has length 25 [2018-11-18 12:16:36,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:16:36,899 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 32 transitions. [2018-11-18 12:16:36,900 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 12:16:36,900 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2018-11-18 12:16:36,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-18 12:16:36,900 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:16:36,900 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:16:36,900 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:16:36,901 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:16:36,901 INFO L82 PathProgramCache]: Analyzing trace with hash -8459046, now seen corresponding path program 1 times [2018-11-18 12:16:36,901 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 12:16:36,901 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/bin-2019/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-11-18 12:16:36,904 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:16:36,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:16:36,966 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:16:37,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:16:37,154 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 12:16:37,161 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:16:37,161 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-11-18 12:16:37,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 12:16:37,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 12:16:37,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-11-18 12:16:37,162 INFO L87 Difference]: Start difference. First operand 33 states and 32 transitions. Second operand 12 states. [2018-11-18 12:16:37,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:16:37,436 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2018-11-18 12:16:37,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 12:16:37,437 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 32 [2018-11-18 12:16:37,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:16:37,437 INFO L225 Difference]: With dead ends: 33 [2018-11-18 12:16:37,437 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 12:16:37,437 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2018-11-18 12:16:37,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 12:16:37,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 12:16:37,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 12:16:37,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 12:16:37,438 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-11-18 12:16:37,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:16:37,438 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:16:37,438 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 12:16:37,438 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 12:16:37,438 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 12:16:37,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 12:16:37,555 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:16:37,555 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:16:37,555 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:16:37,555 INFO L425 ceAbstractionStarter]: For program point L23(lines 23 47) no Hoare annotation was computed. [2018-11-18 12:16:37,555 INFO L425 ceAbstractionStarter]: For program point L48(lines 48 52) no Hoare annotation was computed. [2018-11-18 12:16:37,555 INFO L425 ceAbstractionStarter]: For program point L48-2(lines 13 54) no Hoare annotation was computed. [2018-11-18 12:16:37,555 INFO L425 ceAbstractionStarter]: For program point L48-3(lines 48 52) no Hoare annotation was computed. [2018-11-18 12:16:37,555 INFO L425 ceAbstractionStarter]: For program point L36(lines 36 40) no Hoare annotation was computed. [2018-11-18 12:16:37,556 INFO L425 ceAbstractionStarter]: For program point L28(lines 28 30) no Hoare annotation was computed. [2018-11-18 12:16:37,556 INFO L425 ceAbstractionStarter]: For program point L24(lines 24 41) no Hoare annotation was computed. [2018-11-18 12:16:37,556 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-11-18 12:16:37,556 INFO L421 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_floor~0)) (= |floor_float_#in~x| floor_float_~x)) [2018-11-18 12:16:37,556 INFO L425 ceAbstractionStarter]: For program point L16-4(lines 16 20) no Hoare annotation was computed. [2018-11-18 12:16:37,556 INFO L425 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-11-18 12:16:37,556 INFO L425 ceAbstractionStarter]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2018-11-18 12:16:37,556 INFO L425 ceAbstractionStarter]: For program point floor_floatEXIT(lines 13 54) no Hoare annotation was computed. [2018-11-18 12:16:37,556 INFO L425 ceAbstractionStarter]: For program point L25(lines 25 31) no Hoare annotation was computed. [2018-11-18 12:16:37,556 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-11-18 12:16:37,556 INFO L425 ceAbstractionStarter]: For program point floor_floatFINAL(lines 13 54) no Hoare annotation was computed. [2018-11-18 12:16:37,556 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 30) no Hoare annotation was computed. [2018-11-18 12:16:37,557 INFO L428 ceAbstractionStarter]: At program point floor_floatENTRY(lines 13 54) the Hoare annotation is: true [2018-11-18 12:16:37,557 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 46) no Hoare annotation was computed. [2018-11-18 12:16:37,557 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:16:37,557 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_floor~0) [2018-11-18 12:16:37,557 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:16:37,557 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:16:37,557 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 68 85) the Hoare annotation is: true [2018-11-18 12:16:37,557 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 68 85) no Hoare annotation was computed. [2018-11-18 12:16:37,557 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 80) no Hoare annotation was computed. [2018-11-18 12:16:37,558 INFO L425 ceAbstractionStarter]: For program point L80(line 80) no Hoare annotation was computed. [2018-11-18 12:16:37,558 INFO L425 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-11-18 12:16:37,558 INFO L421 ceAbstractionStarter]: At program point L79-1(line 79) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_floor~0)) (and |main_#t~short8| (= (_ +zero 8 24) main_~x~0) (= (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)) main_~res~0))) [2018-11-18 12:16:37,558 INFO L425 ceAbstractionStarter]: For program point L79-2(line 79) no Hoare annotation was computed. [2018-11-18 12:16:37,558 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 68 85) no Hoare annotation was computed. [2018-11-18 12:16:37,558 INFO L421 ceAbstractionStarter]: At program point L76(line 76) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_floor~0)) (= (_ +zero 8 24) main_~x~0)) [2018-11-18 12:16:37,558 INFO L425 ceAbstractionStarter]: For program point L76-1(line 76) no Hoare annotation was computed. [2018-11-18 12:16:37,558 INFO L425 ceAbstractionStarter]: For program point L79-4(lines 79 82) no Hoare annotation was computed. [2018-11-18 12:16:37,558 INFO L425 ceAbstractionStarter]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2018-11-18 12:16:37,559 INFO L421 ceAbstractionStarter]: At program point L59-3(lines 59 63) the Hoare annotation is: (or (= |__signbit_float_#in~x| __signbit_float_~x) (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_floor~0))) [2018-11-18 12:16:37,559 INFO L425 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 56 66) no Hoare annotation was computed. [2018-11-18 12:16:37,559 INFO L425 ceAbstractionStarter]: For program point L59-4(lines 59 63) no Hoare annotation was computed. [2018-11-18 12:16:37,559 INFO L428 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 56 66) the Hoare annotation is: true [2018-11-18 12:16:37,559 INFO L425 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 56 66) no Hoare annotation was computed. [2018-11-18 12:16:37,564 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:16:37,565 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:16:37,567 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:16:37,568 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:16:37,568 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:16:37,569 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:16:37,569 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:16:37,569 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:16:37,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:16:37 BoogieIcfgContainer [2018-11-18 12:16:37,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:16:37,571 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:16:37,571 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:16:37,571 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:16:37,571 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:16:31" (3/4) ... [2018-11-18 12:16:37,574 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 12:16:37,578 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 12:16:37,578 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_float [2018-11-18 12:16:37,578 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 12:16:37,578 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-11-18 12:16:37,583 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-11-18 12:16:37,583 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-18 12:16:37,583 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 12:16:37,601 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_floor) || \old(x) == x [2018-11-18 12:16:37,602 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_floor) [2018-11-18 12:16:37,622 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9ba80dfe-52f9-41fa-85f6-883e115b8f4d/bin-2019/utaipan/witness.graphml [2018-11-18 12:16:37,622 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:16:37,623 INFO L168 Benchmark]: Toolchain (without parser) took 6989.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 948.7 MB in the beginning and 824.3 MB in the end (delta: 124.4 MB). Peak memory consumption was 237.6 MB. Max. memory is 11.5 GB. [2018-11-18 12:16:37,624 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:16:37,625 INFO L168 Benchmark]: CACSL2BoogieTranslator took 201.97 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 932.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 12:16:37,625 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.17 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:16:37,625 INFO L168 Benchmark]: Boogie Preprocessor took 25.27 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:16:37,625 INFO L168 Benchmark]: RCFGBuilder took 637.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -149.4 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2018-11-18 12:16:37,626 INFO L168 Benchmark]: TraceAbstraction took 6053.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 831.2 MB in the end (delta: 250.7 MB). Peak memory consumption was 250.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:16:37,626 INFO L168 Benchmark]: Witness Printer took 51.36 ms. Allocated memory is still 1.1 GB. Free memory is still 824.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:16:37,628 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 201.97 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 932.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.17 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.27 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 637.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -149.4 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6053.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 831.2 MB in the end (delta: 250.7 MB). Peak memory consumption was 250.7 MB. Max. memory is 11.5 GB. * Witness Printer took 51.36 ms. Allocated memory is still 1.1 GB. Free memory is still 824.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 80]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 59]: Loop Invariant [2018-11-18 12:16:37,635 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:16:37,635 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:16:37,636 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:16:37,636 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: \old(x) == x || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_floor) - InvariantResult [Line: 16]: Loop Invariant [2018-11-18 12:16:37,636 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:16:37,636 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:16:37,637 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 12:16:37,637 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_floor) || \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. SAFE Result, 6.0s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 3.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 229 SDtfs, 226 SDslu, 728 SDs, 0 SdLazy, 330 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 176 GetRequests, 120 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 11 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 20 PreInvPairs, 23 NumberOfFragments, 68 HoareAnnotationTreeSize, 20 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 76 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 154 ConstructedInterpolants, 17 QuantifiedInterpolants, 19826 SizeOfPredicates, 25 NumberOfNonLiveVariables, 425 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...