./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float20_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_94f2aca4-e267-4e11-89b1-473195d6729b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_94f2aca4-e267-4e11-89b1-473195d6729b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_94f2aca4-e267-4e11-89b1-473195d6729b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_94f2aca4-e267-4e11-89b1-473195d6729b/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float20_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_94f2aca4-e267-4e11-89b1-473195d6729b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_94f2aca4-e267-4e11-89b1-473195d6729b/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 0141f30eebc41972a05a5b9a00ccec3818dc94e8 ..................................................................................................................................................................................................................................................... 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_94f2aca4-e267-4e11-89b1-473195d6729b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_94f2aca4-e267-4e11-89b1-473195d6729b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_94f2aca4-e267-4e11-89b1-473195d6729b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_94f2aca4-e267-4e11-89b1-473195d6729b/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float20_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_94f2aca4-e267-4e11-89b1-473195d6729b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_94f2aca4-e267-4e11-89b1-473195d6729b/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 0141f30eebc41972a05a5b9a00ccec3818dc94e8 ........................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-03 07:28:15,571 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 07:28:15,572 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 07:28:15,578 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 07:28:15,579 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 07:28:15,579 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 07:28:15,580 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 07:28:15,581 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 07:28:15,581 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 07:28:15,582 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 07:28:15,582 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 07:28:15,583 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 07:28:15,583 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 07:28:15,584 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 07:28:15,584 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 07:28:15,585 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 07:28:15,585 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 07:28:15,586 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 07:28:15,587 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 07:28:15,588 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 07:28:15,588 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 07:28:15,589 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 07:28:15,590 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 07:28:15,590 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 07:28:15,590 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 07:28:15,591 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 07:28:15,591 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 07:28:15,592 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 07:28:15,592 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 07:28:15,592 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 07:28:15,593 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 07:28:15,593 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 07:28:15,593 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 07:28:15,593 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 07:28:15,594 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 07:28:15,594 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 07:28:15,594 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_94f2aca4-e267-4e11-89b1-473195d6729b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-03 07:28:15,601 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 07:28:15,601 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 07:28:15,602 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 07:28:15,602 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 07:28:15,602 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 07:28:15,602 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 07:28:15,602 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 07:28:15,602 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 07:28:15,603 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 07:28:15,603 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 07:28:15,603 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 07:28:15,603 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 07:28:15,603 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 07:28:15,603 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 07:28:15,604 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 07:28:15,604 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 07:28:15,604 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 07:28:15,604 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 07:28:15,604 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 07:28:15,604 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 07:28:15,604 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 07:28:15,604 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 07:28:15,605 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 07:28:15,605 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 07:28:15,605 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 07:28:15,605 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 07:28:15,605 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 07:28:15,605 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 07:28:15,605 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 07:28:15,605 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 07:28:15,606 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 07:28:15,606 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 07:28:15,606 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 07:28:15,606 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 07:28:15,606 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 07:28:15,606 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 07:28:15,606 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_94f2aca4-e267-4e11-89b1-473195d6729b/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 -> 0141f30eebc41972a05a5b9a00ccec3818dc94e8 [2018-12-03 07:28:15,624 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 07:28:15,632 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 07:28:15,634 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 07:28:15,635 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 07:28:15,636 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 07:28:15,636 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_94f2aca4-e267-4e11-89b1-473195d6729b/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float20_true-unreach-call_true-termination.i [2018-12-03 07:28:15,672 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_94f2aca4-e267-4e11-89b1-473195d6729b/bin-2019/utaipan/data/4e4d4f09c/ef0c08da072c4e88a273b2674d4bd6b2/FLAG74f09bde8 [2018-12-03 07:28:16,010 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 07:28:16,010 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_94f2aca4-e267-4e11-89b1-473195d6729b/sv-benchmarks/c/floats-cbmc-regression/float20_true-unreach-call_true-termination.i [2018-12-03 07:28:16,013 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_94f2aca4-e267-4e11-89b1-473195d6729b/bin-2019/utaipan/data/4e4d4f09c/ef0c08da072c4e88a273b2674d4bd6b2/FLAG74f09bde8 [2018-12-03 07:28:16,416 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_94f2aca4-e267-4e11-89b1-473195d6729b/bin-2019/utaipan/data/4e4d4f09c/ef0c08da072c4e88a273b2674d4bd6b2 [2018-12-03 07:28:16,418 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 07:28:16,420 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 07:28:16,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 07:28:16,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 07:28:16,423 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 07:28:16,424 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 07:28:16" (1/1) ... [2018-12-03 07:28:16,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2486db8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:16, skipping insertion in model container [2018-12-03 07:28:16,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 07:28:16" (1/1) ... [2018-12-03 07:28:16,431 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 07:28:16,441 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 07:28:16,531 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 07:28:16,533 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 07:28:16,546 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 07:28:16,554 INFO L195 MainTranslator]: Completed translation [2018-12-03 07:28:16,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:16 WrapperNode [2018-12-03 07:28:16,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 07:28:16,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 07:28:16,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 07:28:16,555 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 07:28:16,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:16" (1/1) ... [2018-12-03 07:28:16,563 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:16" (1/1) ... [2018-12-03 07:28:16,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 07:28:16,567 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 07:28:16,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 07:28:16,567 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 07:28:16,572 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:16" (1/1) ... [2018-12-03 07:28:16,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:16" (1/1) ... [2018-12-03 07:28:16,573 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:16" (1/1) ... [2018-12-03 07:28:16,573 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:16" (1/1) ... [2018-12-03 07:28:16,576 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:16" (1/1) ... [2018-12-03 07:28:16,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:16" (1/1) ... [2018-12-03 07:28:16,578 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:16" (1/1) ... [2018-12-03 07:28:16,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 07:28:16,579 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 07:28:16,579 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 07:28:16,579 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 07:28:16,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_94f2aca4-e267-4e11-89b1-473195d6729b/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 07:28:16,638 INFO L130 BoogieDeclarations]: Found specification of procedure bugCasting [2018-12-03 07:28:16,639 INFO L138 BoogieDeclarations]: Found implementation of procedure bugCasting [2018-12-03 07:28:16,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 07:28:16,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 07:28:16,639 INFO L130 BoogieDeclarations]: Found specification of procedure bug [2018-12-03 07:28:16,639 INFO L138 BoogieDeclarations]: Found implementation of procedure bug [2018-12-03 07:28:16,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 07:28:16,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 07:28:16,640 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 07:28:16,640 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 07:28:16,640 INFO L130 BoogieDeclarations]: Found specification of procedure bugBrokenOut [2018-12-03 07:28:16,640 INFO L138 BoogieDeclarations]: Found implementation of procedure bugBrokenOut [2018-12-03 07:28:16,734 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 07:28:16,734 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-03 07:28:16,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:28:16 BoogieIcfgContainer [2018-12-03 07:28:16,734 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 07:28:16,735 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 07:28:16,735 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 07:28:16,736 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 07:28:16,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 07:28:16" (1/3) ... [2018-12-03 07:28:16,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17bfe191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 07:28:16, skipping insertion in model container [2018-12-03 07:28:16,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:16" (2/3) ... [2018-12-03 07:28:16,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17bfe191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 07:28:16, skipping insertion in model container [2018-12-03 07:28:16,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:28:16" (3/3) ... [2018-12-03 07:28:16,739 INFO L112 eAbstractionObserver]: Analyzing ICFG float20_true-unreach-call_true-termination.i [2018-12-03 07:28:16,747 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 07:28:16,753 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-03 07:28:16,764 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-03 07:28:16,788 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 07:28:16,788 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 07:28:16,789 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 07:28:16,789 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 07:28:16,789 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 07:28:16,789 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 07:28:16,789 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 07:28:16,789 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 07:28:16,803 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-12-03 07:28:16,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-03 07:28:16,806 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:28:16,806 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:28:16,808 INFO L423 AbstractCegarLoop]: === Iteration 1 === [bugCastingErr0ASSERT_VIOLATIONERROR_FUNCTION, bugErr0ASSERT_VIOLATIONERROR_FUNCTION, bugBrokenOutErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:28:16,811 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:28:16,811 INFO L82 PathProgramCache]: Analyzing trace with hash -2055741580, now seen corresponding path program 1 times [2018-12-03 07:28:16,813 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:28:16,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:28:16,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:28:16,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:28:16,852 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:28:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 07:28:16,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-03 07:28:16,888 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-03 07:28:16,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 07:28:16 BoogieIcfgContainer [2018-12-03 07:28:16,901 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 07:28:16,901 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 07:28:16,901 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 07:28:16,901 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 07:28:16,902 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:28:16" (3/4) ... [2018-12-03 07:28:16,904 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-03 07:28:16,904 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 07:28:16,904 INFO L168 Benchmark]: Toolchain (without parser) took 485.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -131.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 07:28:16,905 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 07:28:16,906 INFO L168 Benchmark]: CACSL2BoogieTranslator took 134.24 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-03 07:28:16,906 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.04 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 936.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-03 07:28:16,907 INFO L168 Benchmark]: Boogie Preprocessor took 11.63 ms. Allocated memory is still 1.0 GB. Free memory is still 936.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 07:28:16,907 INFO L168 Benchmark]: RCFGBuilder took 155.33 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -158.5 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-12-03 07:28:16,907 INFO L168 Benchmark]: TraceAbstraction took 166.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-03 07:28:16,908 INFO L168 Benchmark]: Witness Printer took 2.72 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 07:28:16,910 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 134.24 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.04 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 936.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.63 ms. Allocated memory is still 1.0 GB. Free memory is still 936.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 155.33 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.8 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -158.5 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 166.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.72 ms. Allocated memory is still 1.1 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 someBinaryArithmeticDOUBLEoperation at line 7, overapproximation of someBinaryArithmeticFLOAToperation at line 8. Possible FailurePath: [L37] float f=__VERIFIER_nondet_float(); [L38] CALL bug(f) VAL [\old(min)=0] [L7] float modifier = (0x1.0p-23 * (1<<1)); [L8] float ulpdiff = min * modifier; VAL [\old(min)=0, min=0] [L10] COND TRUE !(ulpdiff == 0x1p-126f) VAL [\old(min)=0, min=0] [L10] __VERIFIER_error() VAL [\old(min)=0, min=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 33 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=33occurred 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, 9 NumberOfCodeBlocks, 9 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 0.1.23-635dfa2 [2018-12-03 07:28:18,212 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 07:28:18,213 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 07:28:18,219 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 07:28:18,219 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 07:28:18,220 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 07:28:18,220 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 07:28:18,221 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 07:28:18,222 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 07:28:18,223 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 07:28:18,223 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 07:28:18,223 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 07:28:18,224 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 07:28:18,224 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 07:28:18,224 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 07:28:18,225 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 07:28:18,225 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 07:28:18,226 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 07:28:18,227 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 07:28:18,228 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 07:28:18,228 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 07:28:18,229 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 07:28:18,230 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 07:28:18,230 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 07:28:18,230 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 07:28:18,231 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 07:28:18,231 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 07:28:18,231 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 07:28:18,232 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 07:28:18,232 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 07:28:18,232 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 07:28:18,233 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 07:28:18,233 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 07:28:18,233 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 07:28:18,233 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 07:28:18,234 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 07:28:18,234 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_94f2aca4-e267-4e11-89b1-473195d6729b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-03 07:28:18,241 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 07:28:18,241 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 07:28:18,242 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 07:28:18,242 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 07:28:18,242 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 07:28:18,242 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 07:28:18,242 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 07:28:18,242 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 07:28:18,242 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 07:28:18,242 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 07:28:18,243 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 07:28:18,243 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 07:28:18,243 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 07:28:18,243 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 07:28:18,243 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 07:28:18,243 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 07:28:18,243 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 07:28:18,243 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-03 07:28:18,243 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-03 07:28:18,243 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 07:28:18,243 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 07:28:18,244 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-03 07:28:18,244 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 07:28:18,244 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 07:28:18,244 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 07:28:18,244 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 07:28:18,244 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 07:28:18,244 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 07:28:18,244 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 07:28:18,244 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 07:28:18,244 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 07:28:18,244 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-03 07:28:18,244 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 07:28:18,245 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-03 07:28:18,245 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-03 07:28:18,245 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_94f2aca4-e267-4e11-89b1-473195d6729b/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 -> 0141f30eebc41972a05a5b9a00ccec3818dc94e8 [2018-12-03 07:28:18,262 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 07:28:18,269 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 07:28:18,271 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 07:28:18,272 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 07:28:18,272 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 07:28:18,273 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_94f2aca4-e267-4e11-89b1-473195d6729b/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float20_true-unreach-call_true-termination.i [2018-12-03 07:28:18,309 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_94f2aca4-e267-4e11-89b1-473195d6729b/bin-2019/utaipan/data/c9dfebb7a/e883e294ca444f089d6cc4e16777fe63/FLAG7db11ddba [2018-12-03 07:28:18,744 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 07:28:18,745 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_94f2aca4-e267-4e11-89b1-473195d6729b/sv-benchmarks/c/floats-cbmc-regression/float20_true-unreach-call_true-termination.i [2018-12-03 07:28:18,748 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_94f2aca4-e267-4e11-89b1-473195d6729b/bin-2019/utaipan/data/c9dfebb7a/e883e294ca444f089d6cc4e16777fe63/FLAG7db11ddba [2018-12-03 07:28:18,756 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_94f2aca4-e267-4e11-89b1-473195d6729b/bin-2019/utaipan/data/c9dfebb7a/e883e294ca444f089d6cc4e16777fe63 [2018-12-03 07:28:18,757 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 07:28:18,758 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 07:28:18,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 07:28:18,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 07:28:18,761 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 07:28:18,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 07:28:18" (1/1) ... [2018-12-03 07:28:18,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d64a324 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:18, skipping insertion in model container [2018-12-03 07:28:18,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 07:28:18" (1/1) ... [2018-12-03 07:28:18,768 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 07:28:18,778 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 07:28:18,876 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 07:28:18,880 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 07:28:18,898 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 07:28:18,909 INFO L195 MainTranslator]: Completed translation [2018-12-03 07:28:18,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:18 WrapperNode [2018-12-03 07:28:18,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 07:28:18,910 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 07:28:18,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 07:28:18,910 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 07:28:18,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:18" (1/1) ... [2018-12-03 07:28:18,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:18" (1/1) ... [2018-12-03 07:28:18,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 07:28:18,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 07:28:18,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 07:28:18,927 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 07:28:18,932 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:18" (1/1) ... [2018-12-03 07:28:18,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:18" (1/1) ... [2018-12-03 07:28:18,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:18" (1/1) ... [2018-12-03 07:28:18,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:18" (1/1) ... [2018-12-03 07:28:18,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:18" (1/1) ... [2018-12-03 07:28:18,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:18" (1/1) ... [2018-12-03 07:28:18,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:18" (1/1) ... [2018-12-03 07:28:18,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 07:28:18,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 07:28:18,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 07:28:18,946 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 07:28:18,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_94f2aca4-e267-4e11-89b1-473195d6729b/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 07:28:19,022 INFO L130 BoogieDeclarations]: Found specification of procedure bugCasting [2018-12-03 07:28:19,022 INFO L138 BoogieDeclarations]: Found implementation of procedure bugCasting [2018-12-03 07:28:19,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 07:28:19,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 07:28:19,023 INFO L130 BoogieDeclarations]: Found specification of procedure bug [2018-12-03 07:28:19,023 INFO L138 BoogieDeclarations]: Found implementation of procedure bug [2018-12-03 07:28:19,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 07:28:19,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 07:28:19,023 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 07:28:19,023 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 07:28:19,023 INFO L130 BoogieDeclarations]: Found specification of procedure bugBrokenOut [2018-12-03 07:28:19,023 INFO L138 BoogieDeclarations]: Found implementation of procedure bugBrokenOut [2018-12-03 07:28:19,619 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 07:28:19,619 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-03 07:28:19,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:28:19 BoogieIcfgContainer [2018-12-03 07:28:19,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 07:28:19,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 07:28:19,621 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 07:28:19,623 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 07:28:19,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 07:28:18" (1/3) ... [2018-12-03 07:28:19,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1385175a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 07:28:19, skipping insertion in model container [2018-12-03 07:28:19,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:18" (2/3) ... [2018-12-03 07:28:19,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1385175a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 07:28:19, skipping insertion in model container [2018-12-03 07:28:19,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:28:19" (3/3) ... [2018-12-03 07:28:19,625 INFO L112 eAbstractionObserver]: Analyzing ICFG float20_true-unreach-call_true-termination.i [2018-12-03 07:28:19,631 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 07:28:19,636 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-03 07:28:19,644 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-03 07:28:19,661 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-03 07:28:19,661 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 07:28:19,661 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 07:28:19,661 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 07:28:19,662 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 07:28:19,662 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 07:28:19,662 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 07:28:19,662 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 07:28:19,662 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 07:28:19,671 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-12-03 07:28:19,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-03 07:28:19,675 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:28:19,675 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:28:19,676 INFO L423 AbstractCegarLoop]: === Iteration 1 === [bugCastingErr0ASSERT_VIOLATIONERROR_FUNCTION, bugErr0ASSERT_VIOLATIONERROR_FUNCTION, bugBrokenOutErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:28:19,679 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:28:19,679 INFO L82 PathProgramCache]: Analyzing trace with hash -2055741580, now seen corresponding path program 1 times [2018-12-03 07:28:19,681 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 07:28:19,682 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_94f2aca4-e267-4e11-89b1-473195d6729b/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-03 07:28:19,686 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:28:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:28:19,749 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:28:19,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:28:19,942 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 07:28:19,950 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:28:19,951 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 07:28:19,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 07:28:19,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 07:28:19,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 07:28:19,962 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 3 states. [2018-12-03 07:28:19,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:28:19,990 INFO L93 Difference]: Finished difference Result 56 states and 61 transitions. [2018-12-03 07:28:19,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 07:28:19,994 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-12-03 07:28:19,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:28:19,999 INFO L225 Difference]: With dead ends: 56 [2018-12-03 07:28:20,000 INFO L226 Difference]: Without dead ends: 24 [2018-12-03 07:28:20,001 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 07:28:20,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-12-03 07:28:20,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-12-03 07:28:20,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-12-03 07:28:20,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 23 transitions. [2018-12-03 07:28:20,022 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 23 transitions. Word has length 9 [2018-12-03 07:28:20,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:28:20,022 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 23 transitions. [2018-12-03 07:28:20,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 07:28:20,022 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2018-12-03 07:28:20,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-03 07:28:20,023 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:28:20,023 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:28:20,023 INFO L423 AbstractCegarLoop]: === Iteration 2 === [bugCastingErr0ASSERT_VIOLATIONERROR_FUNCTION, bugErr0ASSERT_VIOLATIONERROR_FUNCTION, bugBrokenOutErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:28:20,023 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:28:20,023 INFO L82 PathProgramCache]: Analyzing trace with hash -807154991, now seen corresponding path program 1 times [2018-12-03 07:28:20,024 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 07:28:20,024 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_94f2aca4-e267-4e11-89b1-473195d6729b/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-03 07:28:20,027 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:28:20,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:28:20,210 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:28:22,755 WARN L180 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 19 [2018-12-03 07:28:23,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:28:23,178 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 07:28:23,188 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:28:23,188 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 07:28:23,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 07:28:23,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 07:28:23,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 07:28:23,190 INFO L87 Difference]: Start difference. First operand 24 states and 23 transitions. Second operand 3 states. [2018-12-03 07:28:23,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:28:23,727 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2018-12-03 07:28:23,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 07:28:23,750 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-12-03 07:28:23,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:28:23,751 INFO L225 Difference]: With dead ends: 24 [2018-12-03 07:28:23,751 INFO L226 Difference]: Without dead ends: 22 [2018-12-03 07:28:23,751 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 07:28:23,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-12-03 07:28:23,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-12-03 07:28:23,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-12-03 07:28:23,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2018-12-03 07:28:23,755 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 15 [2018-12-03 07:28:23,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:28:23,756 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2018-12-03 07:28:23,756 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 07:28:23,756 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2018-12-03 07:28:23,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-03 07:28:23,756 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:28:23,757 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:28:23,757 INFO L423 AbstractCegarLoop]: === Iteration 3 === [bugCastingErr0ASSERT_VIOLATIONERROR_FUNCTION, bugErr0ASSERT_VIOLATIONERROR_FUNCTION, bugBrokenOutErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:28:23,757 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:28:23,757 INFO L82 PathProgramCache]: Analyzing trace with hash -241350324, now seen corresponding path program 1 times [2018-12-03 07:28:23,758 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-03 07:28:23,758 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_94f2aca4-e267-4e11-89b1-473195d6729b/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-03 07:28:23,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:28:23,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:28:23,975 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:28:24,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:28:24,165 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-03 07:28:24,174 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:28:24,175 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 07:28:24,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 07:28:24,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 07:28:24,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 07:28:24,175 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand 3 states. [2018-12-03 07:28:24,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:28:24,177 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2018-12-03 07:28:24,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 07:28:24,177 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-12-03 07:28:24,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:28:24,177 INFO L225 Difference]: With dead ends: 22 [2018-12-03 07:28:24,177 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 07:28:24,178 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 07:28:24,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 07:28:24,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 07:28:24,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 07:28:24,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 07:28:24,178 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-12-03 07:28:24,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:28:24,178 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 07:28:24,178 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 07:28:24,178 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 07:28:24,178 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 07:28:24,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 07:28:24,212 INFO L448 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-12-03 07:28:24,212 INFO L448 ceAbstractionStarter]: For program point L31-1(line 31) no Hoare annotation was computed. [2018-12-03 07:28:24,212 INFO L448 ceAbstractionStarter]: For program point bugCastingErr0ASSERT_VIOLATIONERROR_FUNCTION(line 31) no Hoare annotation was computed. [2018-12-03 07:28:24,212 INFO L448 ceAbstractionStarter]: For program point bugCastingEXIT(lines 26 34) no Hoare annotation was computed. [2018-12-03 07:28:24,212 INFO L448 ceAbstractionStarter]: For program point L31-3(lines 26 34) no Hoare annotation was computed. [2018-12-03 07:28:24,212 INFO L451 ceAbstractionStarter]: At program point bugCastingENTRY(lines 26 34) the Hoare annotation is: true [2018-12-03 07:28:24,212 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-03 07:28:24,212 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-03 07:28:24,212 INFO L451 ceAbstractionStarter]: At program point bugENTRY(lines 5 13) the Hoare annotation is: true [2018-12-03 07:28:24,213 INFO L448 ceAbstractionStarter]: For program point bugErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2018-12-03 07:28:24,213 INFO L448 ceAbstractionStarter]: For program point bugEXIT(lines 5 13) no Hoare annotation was computed. [2018-12-03 07:28:24,213 INFO L448 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-12-03 07:28:24,213 INFO L448 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-12-03 07:28:24,213 INFO L448 ceAbstractionStarter]: For program point L10-3(lines 5 13) no Hoare annotation was computed. [2018-12-03 07:28:24,213 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-03 07:28:24,213 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-03 07:28:24,213 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-03 07:28:24,213 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-03 07:28:24,213 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 36 47) the Hoare annotation is: true [2018-12-03 07:28:24,213 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 36 47) no Hoare annotation was computed. [2018-12-03 07:28:24,213 INFO L451 ceAbstractionStarter]: At program point L44(line 44) the Hoare annotation is: true [2018-12-03 07:28:24,213 INFO L448 ceAbstractionStarter]: For program point L44-1(line 44) no Hoare annotation was computed. [2018-12-03 07:28:24,214 INFO L451 ceAbstractionStarter]: At program point L41(line 41) the Hoare annotation is: true [2018-12-03 07:28:24,214 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 36 47) no Hoare annotation was computed. [2018-12-03 07:28:24,214 INFO L448 ceAbstractionStarter]: For program point L41-1(line 41) no Hoare annotation was computed. [2018-12-03 07:28:24,214 INFO L451 ceAbstractionStarter]: At program point L38(line 38) the Hoare annotation is: true [2018-12-03 07:28:24,214 INFO L448 ceAbstractionStarter]: For program point L38-1(line 38) no Hoare annotation was computed. [2018-12-03 07:28:24,214 INFO L448 ceAbstractionStarter]: For program point bugBrokenOutEXIT(lines 15 24) no Hoare annotation was computed. [2018-12-03 07:28:24,214 INFO L448 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-12-03 07:28:24,214 INFO L448 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-12-03 07:28:24,214 INFO L451 ceAbstractionStarter]: At program point bugBrokenOutENTRY(lines 15 24) the Hoare annotation is: true [2018-12-03 07:28:24,214 INFO L448 ceAbstractionStarter]: For program point bugBrokenOutErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2018-12-03 07:28:24,214 INFO L448 ceAbstractionStarter]: For program point L21-3(lines 15 24) no Hoare annotation was computed. [2018-12-03 07:28:24,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 07:28:24 BoogieIcfgContainer [2018-12-03 07:28:24,216 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 07:28:24,216 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 07:28:24,216 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 07:28:24,216 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 07:28:24,217 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:28:19" (3/4) ... [2018-12-03 07:28:24,219 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-03 07:28:24,223 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bugCasting [2018-12-03 07:28:24,223 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-03 07:28:24,223 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bug [2018-12-03 07:28:24,223 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-03 07:28:24,223 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bugBrokenOut [2018-12-03 07:28:24,226 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-12-03 07:28:24,226 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-03 07:28:24,226 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-03 07:28:24,250 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_94f2aca4-e267-4e11-89b1-473195d6729b/bin-2019/utaipan/witness.graphml [2018-12-03 07:28:24,250 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 07:28:24,251 INFO L168 Benchmark]: Toolchain (without parser) took 5493.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -103.2 MB). Peak memory consumption was 39.5 MB. Max. memory is 11.5 GB. [2018-12-03 07:28:24,251 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 07:28:24,251 INFO L168 Benchmark]: CACSL2BoogieTranslator took 151.02 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-03 07:28:24,252 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.74 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 07:28:24,252 INFO L168 Benchmark]: Boogie Preprocessor took 18.98 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 07:28:24,252 INFO L168 Benchmark]: RCFGBuilder took 673.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -182.0 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2018-12-03 07:28:24,252 INFO L168 Benchmark]: TraceAbstraction took 4595.68 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: 55.9 MB). Peak memory consumption was 55.9 MB. Max. memory is 11.5 GB. [2018-12-03 07:28:24,252 INFO L168 Benchmark]: Witness Printer took 34.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-03 07:28:24,254 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 151.02 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 928.6 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 16.74 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.98 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 673.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -182.0 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4595.68 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: 55.9 MB). Peak memory consumption was 55.9 MB. Max. memory is 11.5 GB. * Witness Printer took 34.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 31]: 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 - PositiveResult [Line: 21]: 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, 33 locations, 3 error locations. SAFE Result, 4.5s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 68 SDtfs, 4 SDslu, 63 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 10 LocationsWithAnnotation, 12 PreInvPairs, 14 NumberOfFragments, 10 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 42 ConstructedInterpolants, 3 QuantifiedInterpolants, 1426 SizeOfPredicates, 9 NumberOfNonLiveVariables, 94 ConjunctsInSsa, 12 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...