./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float12_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a014e3a7-0bfa-4619-81b9-096d0ec6d4ec/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a014e3a7-0bfa-4619-81b9-096d0ec6d4ec/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a014e3a7-0bfa-4619-81b9-096d0ec6d4ec/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a014e3a7-0bfa-4619-81b9-096d0ec6d4ec/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float12_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_a014e3a7-0bfa-4619-81b9-096d0ec6d4ec/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a014e3a7-0bfa-4619-81b9-096d0ec6d4ec/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 c82214860fee184bc373305d606fd208dd65fd42 ................................................................................................................................................................................................................................................. 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_a014e3a7-0bfa-4619-81b9-096d0ec6d4ec/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a014e3a7-0bfa-4619-81b9-096d0ec6d4ec/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a014e3a7-0bfa-4619-81b9-096d0ec6d4ec/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a014e3a7-0bfa-4619-81b9-096d0ec6d4ec/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float12_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_a014e3a7-0bfa-4619-81b9-096d0ec6d4ec/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a014e3a7-0bfa-4619-81b9-096d0ec6d4ec/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 c82214860fee184bc373305d606fd208dd65fd42 ................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 13:08:19,688 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:08:19,689 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:08:19,696 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:08:19,697 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:08:19,697 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:08:19,698 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:08:19,699 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:08:19,700 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:08:19,701 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:08:19,701 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:08:19,701 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:08:19,702 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:08:19,703 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:08:19,703 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:08:19,704 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:08:19,705 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:08:19,706 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:08:19,707 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:08:19,708 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:08:19,709 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:08:19,710 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:08:19,711 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:08:19,711 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:08:19,712 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:08:19,712 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:08:19,713 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:08:19,713 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:08:19,714 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:08:19,715 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:08:19,715 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:08:19,715 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:08:19,716 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:08:19,716 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:08:19,716 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:08:19,717 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:08:19,717 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a014e3a7-0bfa-4619-81b9-096d0ec6d4ec/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 13:08:19,727 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:08:19,727 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:08:19,728 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:08:19,728 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 13:08:19,728 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 13:08:19,728 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 13:08:19,728 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 13:08:19,729 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 13:08:19,729 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 13:08:19,729 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 13:08:19,729 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 13:08:19,729 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 13:08:19,729 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 13:08:19,729 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:08:19,730 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:08:19,730 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:08:19,730 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:08:19,730 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:08:19,730 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:08:19,730 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:08:19,730 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:08:19,730 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:08:19,731 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:08:19,731 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:08:19,731 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:08:19,731 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:08:19,731 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:08:19,731 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:08:19,731 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 13:08:19,731 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:08:19,731 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:08:19,732 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:08:19,732 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:08:19,732 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 13:08:19,732 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:08:19,732 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 13:08:19,732 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 13:08:19,732 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_a014e3a7-0bfa-4619-81b9-096d0ec6d4ec/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 -> c82214860fee184bc373305d606fd208dd65fd42 [2018-11-18 13:08:19,755 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:08:19,763 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:08:19,765 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:08:19,766 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:08:19,766 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:08:19,767 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a014e3a7-0bfa-4619-81b9-096d0ec6d4ec/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float12_true-unreach-call_true-termination.i [2018-11-18 13:08:19,802 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a014e3a7-0bfa-4619-81b9-096d0ec6d4ec/bin-2019/utaipan/data/0c4a517aa/3c49482d8c24414ca263c6616b8986ef/FLAG694baba83 [2018-11-18 13:08:20,204 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:08:20,205 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a014e3a7-0bfa-4619-81b9-096d0ec6d4ec/sv-benchmarks/c/floats-cbmc-regression/float12_true-unreach-call_true-termination.i [2018-11-18 13:08:20,208 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a014e3a7-0bfa-4619-81b9-096d0ec6d4ec/bin-2019/utaipan/data/0c4a517aa/3c49482d8c24414ca263c6616b8986ef/FLAG694baba83 [2018-11-18 13:08:20,218 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a014e3a7-0bfa-4619-81b9-096d0ec6d4ec/bin-2019/utaipan/data/0c4a517aa/3c49482d8c24414ca263c6616b8986ef [2018-11-18 13:08:20,221 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:08:20,222 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:08:20,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:08:20,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:08:20,226 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:08:20,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:08:20" (1/1) ... [2018-11-18 13:08:20,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23a569eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:20, skipping insertion in model container [2018-11-18 13:08:20,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:08:20" (1/1) ... [2018-11-18 13:08:20,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:08:20,252 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:08:20,354 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:08:20,357 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:08:20,368 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:08:20,376 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:08:20,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:20 WrapperNode [2018-11-18 13:08:20,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:08:20,377 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:08:20,377 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:08:20,377 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:08:20,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:20" (1/1) ... [2018-11-18 13:08:20,385 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:20" (1/1) ... [2018-11-18 13:08:20,388 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:08:20,389 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:08:20,389 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:08:20,389 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:08:20,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:20" (1/1) ... [2018-11-18 13:08:20,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:20" (1/1) ... [2018-11-18 13:08:20,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:20" (1/1) ... [2018-11-18 13:08:20,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:20" (1/1) ... [2018-11-18 13:08:20,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:20" (1/1) ... [2018-11-18 13:08:20,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:20" (1/1) ... [2018-11-18 13:08:20,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:20" (1/1) ... [2018-11-18 13:08:20,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:08:20,400 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:08:20,400 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:08:20,400 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:08:20,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a014e3a7-0bfa-4619-81b9-096d0ec6d4ec/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:08:20,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 13:08:20,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 13:08:20,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:08:20,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:08:20,471 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 13:08:20,472 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 13:08:20,542 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:08:20,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:08:20 BoogieIcfgContainer [2018-11-18 13:08:20,542 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:08:20,543 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 13:08:20,543 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 13:08:20,544 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 13:08:20,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:08:20" (1/3) ... [2018-11-18 13:08:20,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e7f739f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:08:20, skipping insertion in model container [2018-11-18 13:08:20,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:20" (2/3) ... [2018-11-18 13:08:20,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e7f739f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:08:20, skipping insertion in model container [2018-11-18 13:08:20,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:08:20" (3/3) ... [2018-11-18 13:08:20,547 INFO L112 eAbstractionObserver]: Analyzing ICFG float12_true-unreach-call_true-termination.i [2018-11-18 13:08:20,552 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 13:08:20,556 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 13:08:20,565 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 13:08:20,583 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 13:08:20,583 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 13:08:20,583 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 13:08:20,584 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:08:20,584 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:08:20,584 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 13:08:20,584 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:08:20,584 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 13:08:20,597 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-11-18 13:08:20,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-18 13:08:20,602 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:08:20,602 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:08:20,603 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:08:20,607 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:08:20,607 INFO L82 PathProgramCache]: Analyzing trace with hash -689330286, now seen corresponding path program 1 times [2018-11-18 13:08:20,608 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:08:20,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:08:20,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:08:20,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:08:20,642 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:08:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:08:20,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:08:20,673 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 13:08:20,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 01:08:20 BoogieIcfgContainer [2018-11-18 13:08:20,690 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 13:08:20,690 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:08:20,691 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:08:20,691 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:08:20,691 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:08:20" (3/4) ... [2018-11-18 13:08:20,694 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 13:08:20,694 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:08:20,694 INFO L168 Benchmark]: Toolchain (without parser) took 473.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -148.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:08:20,695 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:08:20,696 INFO L168 Benchmark]: CACSL2BoogieTranslator took 154.12 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:08:20,696 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.87 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:08:20,696 INFO L168 Benchmark]: Boogie Preprocessor took 11.00 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:08:20,697 INFO L168 Benchmark]: RCFGBuilder took 142.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -177.5 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-11-18 13:08:20,697 INFO L168 Benchmark]: TraceAbstraction took 147.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:08:20,698 INFO L168 Benchmark]: Witness Printer took 3.20 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:08:20,700 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 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 154.12 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 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 11.87 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.00 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 142.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -177.5 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 147.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.20 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 13]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 12, overapproximation of someBinaryDOUBLEComparisonOperation at line 13. Possible FailurePath: [L6] float f = __VERIFIER_nondet_float(); [L7] double d; [L8] unsigned char x = __VERIFIER_nondet_uchar(); [L10] d=f VAL [d=0, f=0, x=1] [L12] COND TRUE f==x VAL [d=0, f=0, x=1] [L13] COND TRUE !(d==x) VAL [d=0, f=0, x=1] [L13] __VERIFIER_error() VAL [d=0, f=0, x=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 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=13occurred 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 0.1.23-5842f4b [2018-11-18 13:08:22,088 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:08:22,089 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:08:22,096 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:08:22,096 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:08:22,097 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:08:22,098 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:08:22,099 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:08:22,100 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:08:22,100 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:08:22,101 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:08:22,101 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:08:22,102 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:08:22,103 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:08:22,103 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:08:22,104 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:08:22,105 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:08:22,106 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:08:22,107 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:08:22,108 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:08:22,109 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:08:22,110 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:08:22,111 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:08:22,111 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:08:22,112 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:08:22,112 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:08:22,113 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:08:22,113 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:08:22,114 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:08:22,115 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:08:22,115 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:08:22,115 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:08:22,116 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:08:22,116 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:08:22,116 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:08:22,117 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:08:22,117 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a014e3a7-0bfa-4619-81b9-096d0ec6d4ec/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 13:08:22,127 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:08:22,128 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:08:22,128 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:08:22,128 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 13:08:22,128 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 13:08:22,129 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 13:08:22,129 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 13:08:22,129 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 13:08:22,129 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 13:08:22,129 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 13:08:22,130 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:08:22,130 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:08:22,130 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:08:22,130 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:08:22,130 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:08:22,130 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:08:22,130 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:08:22,131 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 13:08:22,131 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 13:08:22,131 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:08:22,131 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:08:22,131 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:08:22,131 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:08:22,131 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:08:22,131 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:08:22,132 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:08:22,132 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 13:08:22,132 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:08:22,132 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:08:22,132 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:08:22,132 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:08:22,132 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 13:08:22,133 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:08:22,133 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 13:08:22,133 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 13:08:22,133 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_a014e3a7-0bfa-4619-81b9-096d0ec6d4ec/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 -> c82214860fee184bc373305d606fd208dd65fd42 [2018-11-18 13:08:22,161 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:08:22,169 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:08:22,171 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:08:22,172 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:08:22,172 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:08:22,172 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a014e3a7-0bfa-4619-81b9-096d0ec6d4ec/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float12_true-unreach-call_true-termination.i [2018-11-18 13:08:22,207 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a014e3a7-0bfa-4619-81b9-096d0ec6d4ec/bin-2019/utaipan/data/8e842c495/1f1f411df75a4596a15cdfcabca9788e/FLAGf8ebcd97a [2018-11-18 13:08:22,499 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:08:22,499 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a014e3a7-0bfa-4619-81b9-096d0ec6d4ec/sv-benchmarks/c/floats-cbmc-regression/float12_true-unreach-call_true-termination.i [2018-11-18 13:08:22,503 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a014e3a7-0bfa-4619-81b9-096d0ec6d4ec/bin-2019/utaipan/data/8e842c495/1f1f411df75a4596a15cdfcabca9788e/FLAGf8ebcd97a [2018-11-18 13:08:22,510 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a014e3a7-0bfa-4619-81b9-096d0ec6d4ec/bin-2019/utaipan/data/8e842c495/1f1f411df75a4596a15cdfcabca9788e [2018-11-18 13:08:22,512 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:08:22,513 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:08:22,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:08:22,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:08:22,517 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:08:22,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:08:22" (1/1) ... [2018-11-18 13:08:22,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ccdc69c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:22, skipping insertion in model container [2018-11-18 13:08:22,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:08:22" (1/1) ... [2018-11-18 13:08:22,525 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:08:22,537 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:08:22,643 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:08:22,648 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:08:22,660 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:08:22,671 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:08:22,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:22 WrapperNode [2018-11-18 13:08:22,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:08:22,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:08:22,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:08:22,672 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:08:22,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:22" (1/1) ... [2018-11-18 13:08:22,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:22" (1/1) ... [2018-11-18 13:08:22,688 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:08:22,688 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:08:22,688 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:08:22,688 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:08:22,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:22" (1/1) ... [2018-11-18 13:08:22,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:22" (1/1) ... [2018-11-18 13:08:22,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:22" (1/1) ... [2018-11-18 13:08:22,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:22" (1/1) ... [2018-11-18 13:08:22,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:22" (1/1) ... [2018-11-18 13:08:22,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:22" (1/1) ... [2018-11-18 13:08:22,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:22" (1/1) ... [2018-11-18 13:08:22,701 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:08:22,702 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:08:22,702 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:08:22,702 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:08:22,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a014e3a7-0bfa-4619-81b9-096d0ec6d4ec/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:08:22,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 13:08:22,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 13:08:22,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:08:22,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:08:22,779 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 13:08:22,779 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 13:08:22,948 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:08:22,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:08:22 BoogieIcfgContainer [2018-11-18 13:08:22,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:08:22,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 13:08:22,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 13:08:22,951 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 13:08:22,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:08:22" (1/3) ... [2018-11-18 13:08:22,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@212bfff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:08:22, skipping insertion in model container [2018-11-18 13:08:22,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:08:22" (2/3) ... [2018-11-18 13:08:22,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@212bfff8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:08:22, skipping insertion in model container [2018-11-18 13:08:22,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:08:22" (3/3) ... [2018-11-18 13:08:22,954 INFO L112 eAbstractionObserver]: Analyzing ICFG float12_true-unreach-call_true-termination.i [2018-11-18 13:08:22,962 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 13:08:22,967 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 13:08:22,976 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 13:08:22,993 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 13:08:22,994 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 13:08:22,994 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 13:08:22,994 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 13:08:22,994 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:08:22,994 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:08:22,994 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 13:08:22,994 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:08:22,994 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 13:08:23,007 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-11-18 13:08:23,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-18 13:08:23,010 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:08:23,010 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:08:23,012 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:08:23,015 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:08:23,015 INFO L82 PathProgramCache]: Analyzing trace with hash -689330286, now seen corresponding path program 1 times [2018-11-18 13:08:23,017 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 13:08:23,018 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a014e3a7-0bfa-4619-81b9-096d0ec6d4ec/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-18 13:08:23,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:08:23,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:08:23,056 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:08:24,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:08:24,738 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:08:24,745 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:08:24,746 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 13:08:24,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 13:08:24,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 13:08:24,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 13:08:24,758 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 4 states. [2018-11-18 13:08:27,354 WARN L180 SmtUtils]: Spent 1.95 s on a formula simplification that was a NOOP. DAG size: 11 [2018-11-18 13:08:27,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:08:27,836 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-11-18 13:08:27,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 13:08:27,847 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-11-18 13:08:27,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:08:27,851 INFO L225 Difference]: With dead ends: 19 [2018-11-18 13:08:27,851 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 13:08:27,853 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 13:08:27,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 13:08:27,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 13:08:27,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 13:08:27,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 13:08:27,869 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-11-18 13:08:27,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:08:27,869 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 13:08:27,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 13:08:27,869 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 13:08:27,869 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 13:08:27,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 13:08:27,901 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 13:08:27,902 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:08:27,902 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:08:27,902 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 13:08:27,902 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 13:08:27,902 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 13:08:27,902 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2018-11-18 13:08:27,902 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 4 14) the Hoare annotation is: true [2018-11-18 13:08:27,902 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 4 14) no Hoare annotation was computed. [2018-11-18 13:08:27,903 INFO L425 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2018-11-18 13:08:27,903 INFO L425 ceAbstractionStarter]: For program point L12(lines 12 13) no Hoare annotation was computed. [2018-11-18 13:08:27,903 INFO L425 ceAbstractionStarter]: For program point L13-1(line 13) no Hoare annotation was computed. [2018-11-18 13:08:27,903 INFO L425 ceAbstractionStarter]: For program point L12-1(lines 4 14) no Hoare annotation was computed. [2018-11-18 13:08:27,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 01:08:27 BoogieIcfgContainer [2018-11-18 13:08:27,904 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 13:08:27,905 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:08:27,905 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:08:27,905 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:08:27,905 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:08:22" (3/4) ... [2018-11-18 13:08:27,908 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 13:08:27,912 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 13:08:27,912 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 13:08:27,915 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-18 13:08:27,915 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 13:08:27,915 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 13:08:27,938 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a014e3a7-0bfa-4619-81b9-096d0ec6d4ec/bin-2019/utaipan/witness.graphml [2018-11-18 13:08:27,938 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:08:27,938 INFO L168 Benchmark]: Toolchain (without parser) took 5426.02 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -102.5 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:08:27,939 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:08:27,939 INFO L168 Benchmark]: CACSL2BoogieTranslator took 157.89 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. [2018-11-18 13:08:27,940 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.00 ms. Allocated memory is still 1.0 GB. Free memory is still 939.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:08:27,940 INFO L168 Benchmark]: Boogie Preprocessor took 13.24 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:08:27,940 INFO L168 Benchmark]: RCFGBuilder took 247.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -167.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2018-11-18 13:08:27,941 INFO L168 Benchmark]: TraceAbstraction took 4955.38 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: 48.7 MB). Peak memory consumption was 48.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:08:27,941 INFO L168 Benchmark]: Witness Printer took 33.27 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. [2018-11-18 13:08:27,943 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 157.89 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 16.00 ms. Allocated memory is still 1.0 GB. Free memory is still 939.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.24 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 247.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -167.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4955.38 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: 48.7 MB). Peak memory consumption was 48.7 MB. Max. memory is 11.5 GB. * Witness Printer took 33.27 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: - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. SAFE Result, 4.9s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 3.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10 SDtfs, 6 SDslu, 15 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 1 QuantifiedInterpolants, 154 SizeOfPredicates, 3 NumberOfNonLiveVariables, 16 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...