./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8ccc35369aa7fc4059706b8166915b481ecdc09d .................................................................................................................................................................................................................................................................................................................................................................... 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_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8ccc35369aa7fc4059706b8166915b481ecdc09d ........................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 02:08:34,623 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 02:08:34,624 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 02:08:34,632 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 02:08:34,632 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 02:08:34,633 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 02:08:34,634 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 02:08:34,635 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 02:08:34,636 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 02:08:34,636 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 02:08:34,637 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 02:08:34,637 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 02:08:34,638 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 02:08:34,639 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 02:08:34,639 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 02:08:34,640 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 02:08:34,641 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 02:08:34,642 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 02:08:34,643 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 02:08:34,644 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 02:08:34,645 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 02:08:34,646 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 02:08:34,647 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 02:08:34,648 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 02:08:34,648 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 02:08:34,648 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 02:08:34,649 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 02:08:34,650 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 02:08:34,651 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 02:08:34,651 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 02:08:34,652 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 02:08:34,652 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 02:08:34,652 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 02:08:34,652 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 02:08:34,653 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 02:08:34,654 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 02:08:34,654 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 02:08:34,664 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 02:08:34,664 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 02:08:34,665 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 02:08:34,666 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 02:08:34,666 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 02:08:34,666 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 02:08:34,666 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 02:08:34,666 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 02:08:34,667 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 02:08:34,667 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 02:08:34,667 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 02:08:34,667 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 02:08:34,667 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 02:08:34,667 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 02:08:34,667 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 02:08:34,667 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 02:08:34,668 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 02:08:34,668 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 02:08:34,668 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 02:08:34,668 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 02:08:34,668 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 02:08:34,668 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 02:08:34,668 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 02:08:34,668 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 02:08:34,669 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 02:08:34,669 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 02:08:34,669 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 02:08:34,669 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 02:08:34,669 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 02:08:34,669 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 02:08:34,669 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_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/bin-2019/uautomizer 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 -> Automizer 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 -> 8ccc35369aa7fc4059706b8166915b481ecdc09d [2018-11-23 02:08:34,691 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 02:08:34,699 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 02:08:34,700 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 02:08:34,701 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 02:08:34,702 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 02:08:34,702 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i [2018-11-23 02:08:34,739 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/bin-2019/uautomizer/data/548eaa517/b7205d39ed2443eface06167b43bdcf7/FLAG40a0bb9d9 [2018-11-23 02:08:35,083 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 02:08:35,084 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i [2018-11-23 02:08:35,089 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/bin-2019/uautomizer/data/548eaa517/b7205d39ed2443eface06167b43bdcf7/FLAG40a0bb9d9 [2018-11-23 02:08:35,501 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/bin-2019/uautomizer/data/548eaa517/b7205d39ed2443eface06167b43bdcf7 [2018-11-23 02:08:35,503 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 02:08:35,504 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 02:08:35,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 02:08:35,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 02:08:35,509 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 02:08:35,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:08:35" (1/1) ... [2018-11-23 02:08:35,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13647ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:35, skipping insertion in model container [2018-11-23 02:08:35,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:08:35" (1/1) ... [2018-11-23 02:08:35,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 02:08:35,537 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 02:08:35,660 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 02:08:35,662 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 02:08:35,679 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 02:08:35,689 INFO L195 MainTranslator]: Completed translation [2018-11-23 02:08:35,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:35 WrapperNode [2018-11-23 02:08:35,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 02:08:35,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 02:08:35,690 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 02:08:35,690 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 02:08:35,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:35" (1/1) ... [2018-11-23 02:08:35,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:35" (1/1) ... [2018-11-23 02:08:35,702 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 02:08:35,702 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 02:08:35,703 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 02:08:35,703 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 02:08:35,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:35" (1/1) ... [2018-11-23 02:08:35,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:35" (1/1) ... [2018-11-23 02:08:35,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:35" (1/1) ... [2018-11-23 02:08:35,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:35" (1/1) ... [2018-11-23 02:08:35,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:35" (1/1) ... [2018-11-23 02:08:35,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:35" (1/1) ... [2018-11-23 02:08:35,714 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:35" (1/1) ... [2018-11-23 02:08:35,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 02:08:35,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 02:08:35,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 02:08:35,715 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 02:08:35,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/bin-2019/uautomizer/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 [2018-11-23 02:08:35,796 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2018-11-23 02:08:35,797 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2018-11-23 02:08:35,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 02:08:35,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 02:08:35,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 02:08:35,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 02:08:35,797 INFO L130 BoogieDeclarations]: Found specification of procedure divide [2018-11-23 02:08:35,797 INFO L138 BoogieDeclarations]: Found implementation of procedure divide [2018-11-23 02:08:35,797 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 02:08:35,798 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 02:08:35,798 INFO L130 BoogieDeclarations]: Found specification of procedure multiply [2018-11-23 02:08:35,798 INFO L138 BoogieDeclarations]: Found implementation of procedure multiply [2018-11-23 02:08:35,895 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 02:08:35,895 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 02:08:35,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:08:35 BoogieIcfgContainer [2018-11-23 02:08:35,895 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 02:08:35,896 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 02:08:35,896 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 02:08:35,898 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 02:08:35,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:08:35" (1/3) ... [2018-11-23 02:08:35,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a4102e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:08:35, skipping insertion in model container [2018-11-23 02:08:35,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:35" (2/3) ... [2018-11-23 02:08:35,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a4102e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:08:35, skipping insertion in model container [2018-11-23 02:08:35,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:08:35" (3/3) ... [2018-11-23 02:08:35,900 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp6_true-unreach-call_true-termination.i [2018-11-23 02:08:35,907 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 02:08:35,912 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-11-23 02:08:35,923 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-11-23 02:08:35,944 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 02:08:35,944 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 02:08:35,945 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 02:08:35,945 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 02:08:35,945 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 02:08:35,945 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 02:08:35,945 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 02:08:35,945 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 02:08:35,945 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 02:08:35,959 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-11-23 02:08:35,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 02:08:35,963 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:08:35,963 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:08:35,965 INFO L423 AbstractCegarLoop]: === Iteration 1 === [castErr0ASSERT_VIOLATIONERROR_FUNCTION, divideErr0ASSERT_VIOLATIONERROR_FUNCTION, multiplyErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:08:35,969 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:08:35,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1434687897, now seen corresponding path program 1 times [2018-11-23 02:08:35,970 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 02:08:35,971 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 02:08:36,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:08:36,002 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:08:36,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:08:36,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 02:08:36,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 02:08:36,036 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); [?] assume true; [?] RET #39#return; [?] CALL call #t~ret0 := main(); [?] CALL call multiply(); [?] ~f1~0 := 0.5;~f2~0 := 2.3509885615147286E-38;~res~0 := ~someBinaryArithmeticFLOAToperation(~f1~0, ~f2~0); VAL [multiply_~f1~0=(/ 1.0 2.0), multiply_~f2~0=(/ 16777215.0 713623846352979940529142984724747568191373312.0)] [?] assume !~someBinaryFLOATComparisonOperation(~res~0, 1.1754943508222875E-38); VAL [multiply_~f1~0=(/ 1.0 2.0), multiply_~f2~0=(/ 16777215.0 713623846352979940529142984724747568191373312.0)] [?] assume !false; VAL [multiply_~f1~0=(/ 1.0 2.0), multiply_~f2~0=(/ 16777215.0 713623846352979940529142984724747568191373312.0)] [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L34] CALL call multiply(); [L5] ~f1~0 := 0.5; [L6] ~f2~0 := 2.3509885615147286E-38; [L8] ~res~0 := ~someBinaryArithmeticFLOAToperation(~f1~0, ~f2~0); VAL [~f1~0=1/2, ~f2~0=16777215/713623846352979940529142984724747568191373312] [L10] assume !~someBinaryFLOATComparisonOperation(~res~0, 1.1754943508222875E-38); VAL [~f1~0=1/2, ~f2~0=16777215/713623846352979940529142984724747568191373312] [L10] assert false; VAL [~f1~0=1/2, ~f2~0=16777215/713623846352979940529142984724747568191373312] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L34] CALL call multiply(); [L5] ~f1~0 := 0.5; [L6] ~f2~0 := 2.3509885615147286E-38; [L8] ~res~0 := ~someBinaryArithmeticFLOAToperation(~f1~0, ~f2~0); VAL [~f1~0=1/2, ~f2~0=16777215/713623846352979940529142984724747568191373312] [L10] assume !~someBinaryFLOATComparisonOperation(~res~0, 1.1754943508222875E-38); VAL [~f1~0=1/2, ~f2~0=16777215/713623846352979940529142984724747568191373312] [L10] assert false; VAL [~f1~0=1/2, ~f2~0=16777215/713623846352979940529142984724747568191373312] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L34] CALL call multiply(); [L5] ~f1~0 := 0.5; [L6] ~f2~0 := 2.3509885615147286E-38; [L8] ~res~0 := ~someBinaryArithmeticFLOAToperation(~f1~0, ~f2~0); VAL [~f1~0=1/2, ~f2~0=16777215/713623846352979940529142984724747568191373312] [L10] COND TRUE !~someBinaryFLOATComparisonOperation(~res~0, 1.1754943508222875E-38) VAL [~f1~0=1/2, ~f2~0=16777215/713623846352979940529142984724747568191373312] [L10] assert false; VAL [~f1~0=1/2, ~f2~0=16777215/713623846352979940529142984724747568191373312] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L34] CALL call multiply(); [L5] ~f1~0 := 0.5; [L6] ~f2~0 := 2.3509885615147286E-38; [L8] ~res~0 := ~someBinaryArithmeticFLOAToperation(~f1~0, ~f2~0); VAL [~f1~0=1/2, ~f2~0=16777215/713623846352979940529142984724747568191373312] [L10] COND TRUE !~someBinaryFLOATComparisonOperation(~res~0, 1.1754943508222875E-38) VAL [~f1~0=1/2, ~f2~0=16777215/713623846352979940529142984724747568191373312] [L10] assert false; VAL [~f1~0=1/2, ~f2~0=16777215/713623846352979940529142984724747568191373312] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L34] CALL call multiply(); [L5] ~f1~0 := 0.5; [L6] ~f2~0 := 2.3509885615147286E-38; [L8] ~res~0 := ~someBinaryArithmeticFLOAToperation(~f1~0, ~f2~0); VAL [~f1~0=1/2, ~f2~0=16777215/713623846352979940529142984724747568191373312] [L10] COND TRUE !~someBinaryFLOATComparisonOperation(~res~0, 1.1754943508222875E-38) VAL [~f1~0=1/2, ~f2~0=16777215/713623846352979940529142984724747568191373312] [L10] assert false; VAL [~f1~0=1/2, ~f2~0=16777215/713623846352979940529142984724747568191373312] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(); [L34] CALL call multiply(); [L5] ~f1~0 := 0.5; [L6] ~f2~0 := 2.3509885615147286E-38; [L8] ~res~0 := ~someBinaryArithmeticFLOAToperation(~f1~0, ~f2~0); VAL [~f1~0=1/2, ~f2~0=16777215/713623846352979940529142984724747568191373312] [L10] COND TRUE !~someBinaryFLOATComparisonOperation(~res~0, 1.1754943508222875E-38) VAL [~f1~0=1/2, ~f2~0=16777215/713623846352979940529142984724747568191373312] [L10] assert false; VAL [~f1~0=1/2, ~f2~0=16777215/713623846352979940529142984724747568191373312] [L34] CALL multiply() [L5] float f1=0x1.000000p-1f; [L6] float f2=0x1.fffffep-126f; [L8] float res = f1 * f2; VAL [f1=1/2, f2=16777215/713623846352979940529142984724747568191373312] [L10] COND TRUE !(res == 0x1.0p-126f) VAL [f1=1/2, f2=16777215/713623846352979940529142984724747568191373312] [L10] __VERIFIER_error() VAL [f1=1/2, f2=16777215/713623846352979940529142984724747568191373312] ----- [2018-11-23 02:08:36,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:08:36 BoogieIcfgContainer [2018-11-23 02:08:36,056 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 02:08:36,056 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 02:08:36,056 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 02:08:36,056 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 02:08:36,057 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:08:35" (3/4) ... [2018-11-23 02:08:36,059 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 02:08:36,059 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 02:08:36,060 INFO L168 Benchmark]: Toolchain (without parser) took 556.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 958.5 MB in the beginning and 1.1 GB in the end (delta: -163.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 02:08:36,061 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 02:08:36,062 INFO L168 Benchmark]: CACSL2BoogieTranslator took 184.25 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 945.0 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-23 02:08:36,062 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.78 ms. Allocated memory is still 1.0 GB. Free memory is still 945.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 02:08:36,062 INFO L168 Benchmark]: Boogie Preprocessor took 12.31 ms. Allocated memory is still 1.0 GB. Free memory was 945.0 MB in the beginning and 942.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 02:08:36,063 INFO L168 Benchmark]: RCFGBuilder took 180.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 942.3 MB in the beginning and 1.1 GB in the end (delta: -192.4 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2018-11-23 02:08:36,064 INFO L168 Benchmark]: TraceAbstraction took 159.87 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: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-11-23 02:08:36,064 INFO L168 Benchmark]: Witness Printer took 3.31 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. [2018-11-23 02:08:36,067 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 184.25 ms. Allocated memory is still 1.0 GB. Free memory was 958.5 MB in the beginning and 945.0 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.78 ms. Allocated memory is still 1.0 GB. Free memory is still 945.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.31 ms. Allocated memory is still 1.0 GB. Free memory was 945.0 MB in the beginning and 942.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 180.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 942.3 MB in the beginning and 1.1 GB in the end (delta: -192.4 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 159.87 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: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.31 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: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 10, overapproximation of someBinaryArithmeticFLOAToperation at line 8. Possible FailurePath: [L34] CALL multiply() [L5] float f1=0x1.000000p-1f; [L6] float f2=0x1.fffffep-126f; [L8] float res = f1 * f2; VAL [f1=1/2, f2=16777215/713623846352979940529142984724747568191373312] [L10] COND TRUE !(res == 0x1.0p-126f) VAL [f1=1/2, f2=16777215/713623846352979940529142984724747568191373312] [L10] __VERIFIER_error() VAL [f1=1/2, f2=16777215/713623846352979940529142984724747568191373312] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 29 locations, 3 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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-aa41828 [2018-11-23 02:08:37,573 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 02:08:37,575 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 02:08:37,584 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 02:08:37,584 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 02:08:37,585 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 02:08:37,586 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 02:08:37,587 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 02:08:37,589 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 02:08:37,589 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 02:08:37,590 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 02:08:37,590 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 02:08:37,591 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 02:08:37,592 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 02:08:37,593 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 02:08:37,593 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 02:08:37,594 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 02:08:37,595 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 02:08:37,597 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 02:08:37,598 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 02:08:37,599 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 02:08:37,600 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 02:08:37,601 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 02:08:37,602 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 02:08:37,602 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 02:08:37,602 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 02:08:37,603 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 02:08:37,604 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 02:08:37,604 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 02:08:37,605 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 02:08:37,605 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 02:08:37,606 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 02:08:37,606 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 02:08:37,606 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 02:08:37,607 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 02:08:37,608 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 02:08:37,608 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-23 02:08:37,619 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 02:08:37,619 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 02:08:37,620 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 02:08:37,620 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 02:08:37,621 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 02:08:37,621 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 02:08:37,621 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 02:08:37,621 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 02:08:37,621 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 02:08:37,622 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 02:08:37,622 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 02:08:37,622 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 02:08:37,622 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 02:08:37,622 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 02:08:37,622 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 02:08:37,622 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 02:08:37,623 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 02:08:37,623 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 02:08:37,623 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 02:08:37,623 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 02:08:37,623 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 02:08:37,623 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 02:08:37,624 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 02:08:37,624 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 02:08:37,624 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 02:08:37,624 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 02:08:37,624 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 02:08:37,624 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 02:08:37,625 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 02:08:37,625 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 02:08:37,625 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 02:08:37,625 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 02:08:37,625 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_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/bin-2019/uautomizer 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 -> Automizer 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 -> 8ccc35369aa7fc4059706b8166915b481ecdc09d [2018-11-23 02:08:37,657 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 02:08:37,667 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 02:08:37,670 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 02:08:37,671 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 02:08:37,671 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 02:08:37,672 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i [2018-11-23 02:08:37,719 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/bin-2019/uautomizer/data/9bd94a86c/6d777a73e8d24cb9997638503337dedf/FLAG60729c94c [2018-11-23 02:08:38,054 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 02:08:38,054 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/sv-benchmarks/c/floats-cbmc-regression/float-no-simp6_true-unreach-call_true-termination.i [2018-11-23 02:08:38,059 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/bin-2019/uautomizer/data/9bd94a86c/6d777a73e8d24cb9997638503337dedf/FLAG60729c94c [2018-11-23 02:08:38,068 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/bin-2019/uautomizer/data/9bd94a86c/6d777a73e8d24cb9997638503337dedf [2018-11-23 02:08:38,070 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 02:08:38,071 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 02:08:38,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 02:08:38,071 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 02:08:38,073 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 02:08:38,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:08:38" (1/1) ... [2018-11-23 02:08:38,076 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@622bc2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:38, skipping insertion in model container [2018-11-23 02:08:38,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:08:38" (1/1) ... [2018-11-23 02:08:38,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 02:08:38,095 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 02:08:38,221 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 02:08:38,225 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 02:08:38,241 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 02:08:38,252 INFO L195 MainTranslator]: Completed translation [2018-11-23 02:08:38,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:38 WrapperNode [2018-11-23 02:08:38,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 02:08:38,253 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 02:08:38,253 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 02:08:38,253 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 02:08:38,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:38" (1/1) ... [2018-11-23 02:08:38,264 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:38" (1/1) ... [2018-11-23 02:08:38,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 02:08:38,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 02:08:38,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 02:08:38,269 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 02:08:38,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:38" (1/1) ... [2018-11-23 02:08:38,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:38" (1/1) ... [2018-11-23 02:08:38,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:38" (1/1) ... [2018-11-23 02:08:38,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:38" (1/1) ... [2018-11-23 02:08:38,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:38" (1/1) ... [2018-11-23 02:08:38,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:38" (1/1) ... [2018-11-23 02:08:38,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:38" (1/1) ... [2018-11-23 02:08:38,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 02:08:38,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 02:08:38,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 02:08:38,284 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 02:08:38,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/bin-2019/uautomizer/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 [2018-11-23 02:08:38,360 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2018-11-23 02:08:38,360 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2018-11-23 02:08:38,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 02:08:38,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 02:08:38,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 02:08:38,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 02:08:38,360 INFO L130 BoogieDeclarations]: Found specification of procedure divide [2018-11-23 02:08:38,361 INFO L138 BoogieDeclarations]: Found implementation of procedure divide [2018-11-23 02:08:38,361 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 02:08:38,361 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 02:08:38,361 INFO L130 BoogieDeclarations]: Found specification of procedure multiply [2018-11-23 02:08:38,361 INFO L138 BoogieDeclarations]: Found implementation of procedure multiply [2018-11-23 02:08:38,491 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 02:08:38,491 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 02:08:38,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:08:38 BoogieIcfgContainer [2018-11-23 02:08:38,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 02:08:38,493 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 02:08:38,493 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 02:08:38,496 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 02:08:38,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:08:38" (1/3) ... [2018-11-23 02:08:38,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a3a01d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:08:38, skipping insertion in model container [2018-11-23 02:08:38,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:08:38" (2/3) ... [2018-11-23 02:08:38,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a3a01d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:08:38, skipping insertion in model container [2018-11-23 02:08:38,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:08:38" (3/3) ... [2018-11-23 02:08:38,499 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp6_true-unreach-call_true-termination.i [2018-11-23 02:08:38,508 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 02:08:38,514 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-11-23 02:08:38,529 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-11-23 02:08:38,554 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 02:08:38,554 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 02:08:38,554 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 02:08:38,554 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 02:08:38,554 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 02:08:38,554 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 02:08:38,554 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 02:08:38,554 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 02:08:38,555 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 02:08:38,565 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-11-23 02:08:38,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 02:08:38,568 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:08:38,569 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:08:38,570 INFO L423 AbstractCegarLoop]: === Iteration 1 === [castErr0ASSERT_VIOLATIONERROR_FUNCTION, divideErr0ASSERT_VIOLATIONERROR_FUNCTION, multiplyErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:08:38,573 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:08:38,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1434687897, now seen corresponding path program 1 times [2018-11-23 02:08:38,576 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 02:08:38,576 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/bin-2019/uautomizer/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 [2018-11-23 02:08:38,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:08:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:08:38,650 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:08:38,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 02:08:38,683 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 02:08:38,698 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 02:08:38,698 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 02:08:38,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 02:08:38,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 02:08:38,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 02:08:38,712 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 3 states. [2018-11-23 02:08:38,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:08:38,730 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2018-11-23 02:08:38,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 02:08:38,732 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-23 02:08:38,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:08:38,738 INFO L225 Difference]: With dead ends: 49 [2018-11-23 02:08:38,738 INFO L226 Difference]: Without dead ends: 21 [2018-11-23 02:08:38,740 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 02:08:38,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-23 02:08:38,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-11-23 02:08:38,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-23 02:08:38,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 20 transitions. [2018-11-23 02:08:38,765 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 20 transitions. Word has length 8 [2018-11-23 02:08:38,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:08:38,766 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 20 transitions. [2018-11-23 02:08:38,766 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 02:08:38,766 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 20 transitions. [2018-11-23 02:08:38,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 02:08:38,767 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:08:38,767 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:08:38,767 INFO L423 AbstractCegarLoop]: === Iteration 2 === [castErr0ASSERT_VIOLATIONERROR_FUNCTION, divideErr0ASSERT_VIOLATIONERROR_FUNCTION, multiplyErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:08:38,768 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:08:38,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1652764716, now seen corresponding path program 1 times [2018-11-23 02:08:38,768 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 02:08:38,768 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/bin-2019/uautomizer/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 [2018-11-23 02:08:38,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:08:38,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:08:38,988 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:08:39,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 02:08:39,000 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 02:08:39,010 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 02:08:39,010 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 02:08:39,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 02:08:39,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 02:08:39,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 02:08:39,012 INFO L87 Difference]: Start difference. First operand 21 states and 20 transitions. Second operand 3 states. [2018-11-23 02:08:39,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:08:39,015 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2018-11-23 02:08:39,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 02:08:39,016 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-23 02:08:39,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:08:39,016 INFO L225 Difference]: With dead ends: 21 [2018-11-23 02:08:39,017 INFO L226 Difference]: Without dead ends: 19 [2018-11-23 02:08:39,017 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 02:08:39,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-23 02:08:39,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-23 02:08:39,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-23 02:08:39,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2018-11-23 02:08:39,020 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 13 [2018-11-23 02:08:39,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:08:39,021 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2018-11-23 02:08:39,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 02:08:39,021 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2018-11-23 02:08:39,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-23 02:08:39,021 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 02:08:39,022 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:08:39,022 INFO L423 AbstractCegarLoop]: === Iteration 3 === [castErr0ASSERT_VIOLATIONERROR_FUNCTION, divideErr0ASSERT_VIOLATIONERROR_FUNCTION, multiplyErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 02:08:39,022 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:08:39,022 INFO L82 PathProgramCache]: Analyzing trace with hash -207607829, now seen corresponding path program 1 times [2018-11-23 02:08:39,023 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 02:08:39,023 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/bin-2019/uautomizer/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 [2018-11-23 02:08:39,032 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:08:39,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:08:39,269 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:08:39,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 02:08:39,280 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 02:08:39,291 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 02:08:39,291 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 02:08:39,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 02:08:39,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 02:08:39,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 02:08:39,292 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 3 states. [2018-11-23 02:08:39,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:08:39,294 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2018-11-23 02:08:39,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 02:08:39,294 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-11-23 02:08:39,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 02:08:39,295 INFO L225 Difference]: With dead ends: 19 [2018-11-23 02:08:39,295 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 02:08:39,295 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 02:08:39,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 02:08:39,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 02:08:39,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 02:08:39,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 02:08:39,296 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-11-23 02:08:39,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 02:08:39,296 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 02:08:39,296 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 02:08:39,297 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 02:08:39,297 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 02:08:39,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 02:08:39,335 INFO L448 ceAbstractionStarter]: For program point castEXIT(lines 23 30) no Hoare annotation was computed. [2018-11-23 02:08:39,336 INFO L448 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-11-23 02:08:39,336 INFO L448 ceAbstractionStarter]: For program point L29-1(line 29) no Hoare annotation was computed. [2018-11-23 02:08:39,336 INFO L451 ceAbstractionStarter]: At program point castENTRY(lines 23 30) the Hoare annotation is: true [2018-11-23 02:08:39,336 INFO L448 ceAbstractionStarter]: For program point castErr0ASSERT_VIOLATIONERROR_FUNCTION(line 29) no Hoare annotation was computed. [2018-11-23 02:08:39,336 INFO L448 ceAbstractionStarter]: For program point L29-3(lines 23 30) no Hoare annotation was computed. [2018-11-23 02:08:39,336 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 02:08:39,336 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 02:08:39,337 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 02:08:39,337 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 02:08:39,337 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 02:08:39,337 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 02:08:39,337 INFO L448 ceAbstractionStarter]: For program point L20-3(lines 13 21) no Hoare annotation was computed. [2018-11-23 02:08:39,337 INFO L451 ceAbstractionStarter]: At program point divideENTRY(lines 13 21) the Hoare annotation is: true [2018-11-23 02:08:39,337 INFO L448 ceAbstractionStarter]: For program point divideErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2018-11-23 02:08:39,337 INFO L448 ceAbstractionStarter]: For program point divideEXIT(lines 13 21) no Hoare annotation was computed. [2018-11-23 02:08:39,337 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-23 02:08:39,338 INFO L448 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-11-23 02:08:39,338 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 32 37) the Hoare annotation is: true [2018-11-23 02:08:39,338 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 32 37) no Hoare annotation was computed. [2018-11-23 02:08:39,338 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 32 37) no Hoare annotation was computed. [2018-11-23 02:08:39,338 INFO L451 ceAbstractionStarter]: At program point L35(line 35) the Hoare annotation is: true [2018-11-23 02:08:39,338 INFO L451 ceAbstractionStarter]: At program point L34(line 34) the Hoare annotation is: true [2018-11-23 02:08:39,338 INFO L451 ceAbstractionStarter]: At program point multiplyENTRY(lines 3 11) the Hoare annotation is: true [2018-11-23 02:08:39,338 INFO L448 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-11-23 02:08:39,338 INFO L448 ceAbstractionStarter]: For program point multiplyEXIT(lines 3 11) no Hoare annotation was computed. [2018-11-23 02:08:39,339 INFO L448 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-11-23 02:08:39,339 INFO L448 ceAbstractionStarter]: For program point multiplyErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2018-11-23 02:08:39,339 INFO L448 ceAbstractionStarter]: For program point L10-3(lines 3 11) no Hoare annotation was computed. [2018-11-23 02:08:39,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:08:39 BoogieIcfgContainer [2018-11-23 02:08:39,341 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 02:08:39,342 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 02:08:39,342 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 02:08:39,342 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 02:08:39,342 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:08:38" (3/4) ... [2018-11-23 02:08:39,345 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 02:08:39,349 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cast [2018-11-23 02:08:39,349 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 02:08:39,350 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure divide [2018-11-23 02:08:39,350 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 02:08:39,350 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure multiply [2018-11-23 02:08:39,353 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-23 02:08:39,353 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 02:08:39,353 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 02:08:39,381 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_eb88bf8c-b21d-4e02-b850-e519ac0d4bef/bin-2019/uautomizer/witness.graphml [2018-11-23 02:08:39,381 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 02:08:39,382 INFO L168 Benchmark]: Toolchain (without parser) took 1311.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -109.8 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. [2018-11-23 02:08:39,383 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. [2018-11-23 02:08:39,383 INFO L168 Benchmark]: CACSL2BoogieTranslator took 181.14 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-23 02:08:39,383 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.70 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 02:08:39,384 INFO L168 Benchmark]: Boogie Preprocessor took 14.98 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 02:08:39,384 INFO L168 Benchmark]: RCFGBuilder took 208.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2018-11-23 02:08:39,384 INFO L168 Benchmark]: TraceAbstraction took 848.24 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: 54.8 MB). Peak memory consumption was 54.8 MB. Max. memory is 11.5 GB. [2018-11-23 02:08:39,385 INFO L168 Benchmark]: Witness Printer took 39.78 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. [2018-11-23 02:08:39,386 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 181.14 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 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 15.70 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.98 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 208.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -180.7 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 848.24 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: 54.8 MB). Peak memory consumption was 54.8 MB. Max. memory is 11.5 GB. * Witness Printer took 39.78 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: - PositiveResult [Line: 29]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 20]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 29 locations, 3 error locations. SAFE Result, 0.7s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 58 SDtfs, 4 SDslu, 53 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 11 PreInvPairs, 13 NumberOfFragments, 9 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 755 SizeOfPredicates, 8 NumberOfNonLiveVariables, 80 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...