./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2_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_7e706b00-4bdf-48a9-be6c-8b126b6e0a7a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7e706b00-4bdf-48a9-be6c-8b126b6e0a7a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7e706b00-4bdf-48a9-be6c-8b126b6e0a7a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7e706b00-4bdf-48a9-be6c-8b126b6e0a7a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_7e706b00-4bdf-48a9-be6c-8b126b6e0a7a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7e706b00-4bdf-48a9-be6c-8b126b6e0a7a/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 b4f17a4b481a4a7bc11b766c6bcdfce67786d9c2 .......................................................................................................................................................................................................................................... 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_7e706b00-4bdf-48a9-be6c-8b126b6e0a7a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7e706b00-4bdf-48a9-be6c-8b126b6e0a7a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7e706b00-4bdf-48a9-be6c-8b126b6e0a7a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7e706b00-4bdf-48a9-be6c-8b126b6e0a7a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_7e706b00-4bdf-48a9-be6c-8b126b6e0a7a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7e706b00-4bdf-48a9-be6c-8b126b6e0a7a/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 b4f17a4b481a4a7bc11b766c6bcdfce67786d9c2 ................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 16:01:49,874 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 16:01:49,875 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 16:01:49,881 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 16:01:49,881 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 16:01:49,881 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 16:01:49,882 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 16:01:49,883 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 16:01:49,884 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 16:01:49,884 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 16:01:49,885 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 16:01:49,885 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 16:01:49,885 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 16:01:49,886 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 16:01:49,887 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 16:01:49,887 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 16:01:49,887 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 16:01:49,888 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 16:01:49,889 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 16:01:49,890 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 16:01:49,891 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 16:01:49,891 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 16:01:49,893 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 16:01:49,893 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 16:01:49,893 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 16:01:49,893 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 16:01:49,894 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 16:01:49,894 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 16:01:49,895 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 16:01:49,895 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 16:01:49,896 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 16:01:49,896 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 16:01:49,896 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 16:01:49,896 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 16:01:49,897 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 16:01:49,897 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 16:01:49,897 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7e706b00-4bdf-48a9-be6c-8b126b6e0a7a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 16:01:49,905 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 16:01:49,905 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 16:01:49,905 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 16:01:49,906 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 16:01:49,906 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 16:01:49,906 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 16:01:49,906 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 16:01:49,906 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 16:01:49,906 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 16:01:49,906 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 16:01:49,906 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 16:01:49,906 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 16:01:49,907 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 16:01:49,907 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 16:01:49,907 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 16:01:49,907 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 16:01:49,907 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 16:01:49,907 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 16:01:49,907 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 16:01:49,908 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 16:01:49,908 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 16:01:49,908 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 16:01:49,908 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 16:01:49,908 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 16:01:49,908 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 16:01:49,908 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 16:01:49,908 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 16:01:49,908 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 16:01:49,909 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 16:01:49,909 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 16:01:49,909 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 16:01:49,909 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 16:01:49,909 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 16:01:49,909 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 16:01:49,909 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 16:01:49,909 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 16:01:49,909 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_7e706b00-4bdf-48a9-be6c-8b126b6e0a7a/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 -> b4f17a4b481a4a7bc11b766c6bcdfce67786d9c2 [2018-12-08 16:01:49,927 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 16:01:49,935 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 16:01:49,937 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 16:01:49,938 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 16:01:49,938 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 16:01:49,939 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7e706b00-4bdf-48a9-be6c-8b126b6e0a7a/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2_true-unreach-call_true-termination.i [2018-12-08 16:01:49,975 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7e706b00-4bdf-48a9-be6c-8b126b6e0a7a/bin-2019/utaipan/data/5d3defeb9/9496a9dab2144b46b374a7cbb4bcbe04/FLAGc615baa76 [2018-12-08 16:01:50,402 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 16:01:50,403 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7e706b00-4bdf-48a9-be6c-8b126b6e0a7a/sv-benchmarks/c/floats-cbmc-regression/float-to-double2_true-unreach-call_true-termination.i [2018-12-08 16:01:50,406 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7e706b00-4bdf-48a9-be6c-8b126b6e0a7a/bin-2019/utaipan/data/5d3defeb9/9496a9dab2144b46b374a7cbb4bcbe04/FLAGc615baa76 [2018-12-08 16:01:50,415 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7e706b00-4bdf-48a9-be6c-8b126b6e0a7a/bin-2019/utaipan/data/5d3defeb9/9496a9dab2144b46b374a7cbb4bcbe04 [2018-12-08 16:01:50,416 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 16:01:50,417 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 16:01:50,418 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 16:01:50,418 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 16:01:50,420 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 16:01:50,420 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 04:01:50" (1/1) ... [2018-12-08 16:01:50,422 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@359bc049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:01:50, skipping insertion in model container [2018-12-08 16:01:50,422 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 04:01:50" (1/1) ... [2018-12-08 16:01:50,426 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 16:01:50,434 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 16:01:50,519 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 16:01:50,522 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 16:01:50,531 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 16:01:50,539 INFO L195 MainTranslator]: Completed translation [2018-12-08 16:01:50,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:01:50 WrapperNode [2018-12-08 16:01:50,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 16:01:50,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 16:01:50,540 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 16:01:50,540 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 16:01:50,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:01:50" (1/1) ... [2018-12-08 16:01:50,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:01:50" (1/1) ... [2018-12-08 16:01:50,556 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 16:01:50,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 16:01:50,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 16:01:50,557 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 16:01:50,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:01:50" (1/1) ... [2018-12-08 16:01:50,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:01:50" (1/1) ... [2018-12-08 16:01:50,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:01:50" (1/1) ... [2018-12-08 16:01:50,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:01:50" (1/1) ... [2018-12-08 16:01:50,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:01:50" (1/1) ... [2018-12-08 16:01:50,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:01:50" (1/1) ... [2018-12-08 16:01:50,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:01:50" (1/1) ... [2018-12-08 16:01:50,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 16:01:50,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 16:01:50,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 16:01:50,568 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 16:01:50,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:01:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7e706b00-4bdf-48a9-be6c-8b126b6e0a7a/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 16:01:50,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 16:01:50,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 16:01:50,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 16:01:50,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 16:01:50,629 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 16:01:50,629 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 16:01:50,695 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 16:01:50,696 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-08 16:01:50,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 04:01:50 BoogieIcfgContainer [2018-12-08 16:01:50,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 16:01:50,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 16:01:50,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 16:01:50,700 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 16:01:50,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 04:01:50" (1/3) ... [2018-12-08 16:01:50,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6695c623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 04:01:50, skipping insertion in model container [2018-12-08 16:01:50,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:01:50" (2/3) ... [2018-12-08 16:01:50,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6695c623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 04:01:50, skipping insertion in model container [2018-12-08 16:01:50,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 04:01:50" (3/3) ... [2018-12-08 16:01:50,703 INFO L112 eAbstractionObserver]: Analyzing ICFG float-to-double2_true-unreach-call_true-termination.i [2018-12-08 16:01:50,711 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 16:01:50,717 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 16:01:50,729 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 16:01:50,754 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 16:01:50,754 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 16:01:50,755 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 16:01:50,755 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 16:01:50,755 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 16:01:50,755 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 16:01:50,755 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 16:01:50,755 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 16:01:50,768 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-12-08 16:01:50,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 16:01:50,771 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 16:01:50,772 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 16:01:50,773 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 16:01:50,776 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 16:01:50,776 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-12-08 16:01:50,778 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 16:01:50,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 16:01:50,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 16:01:50,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 16:01:50,807 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 16:01:50,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 16:01:50,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 16:01:50,834 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 16:01:50,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 04:01:50 BoogieIcfgContainer [2018-12-08 16:01:50,846 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 16:01:50,846 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 16:01:50,846 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 16:01:50,846 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 16:01:50,846 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 04:01:50" (3/4) ... [2018-12-08 16:01:50,849 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 16:01:50,849 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 16:01:50,849 INFO L168 Benchmark]: Toolchain (without parser) took 432.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.1 MB). Free memory was 956.7 MB in the beginning and 1.0 GB in the end (delta: -92.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 16:01:50,850 INFO L168 Benchmark]: CDTParser took 0.11 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. [2018-12-08 16:01:50,851 INFO L168 Benchmark]: CACSL2BoogieTranslator took 122.00 ms. Allocated memory is still 1.0 GB. Free memory was 956.7 MB in the beginning and 945.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 16:01:50,851 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.21 ms. Allocated memory is still 1.0 GB. Free memory is still 945.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 16:01:50,851 INFO L168 Benchmark]: Boogie Preprocessor took 11.39 ms. Allocated memory is still 1.0 GB. Free memory was 945.9 MB in the beginning and 940.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 16:01:50,852 INFO L168 Benchmark]: RCFGBuilder took 128.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.1 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -122.9 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-12-08 16:01:50,852 INFO L168 Benchmark]: TraceAbstraction took 148.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-12-08 16:01:50,853 INFO L168 Benchmark]: Witness Printer took 2.84 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 16:01:50,854 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 122.00 ms. Allocated memory is still 1.0 GB. Free memory was 956.7 MB in the beginning and 945.9 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 16.21 ms. Allocated memory is still 1.0 GB. Free memory is still 945.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.39 ms. Allocated memory is still 1.0 GB. Free memory was 945.9 MB in the beginning and 940.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 128.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 77.1 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -122.9 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 148.90 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * Witness Printer took 2.84 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 9, overapproximation of someUnaryDOUBLEoperation at line 6, overapproximation of someUnaryFLOAToperation at line 5. Possible FailurePath: [L5] float f = -0x1.0p-127f; [L6] double d = -0x1.0p-127; [L7] double fp = (double)f; VAL [f=0, fp=0] [L9] COND TRUE !(d == fp) VAL [f=0, fp=0] [L9] __VERIFIER_error() VAL [f=0, fp=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. UNSAFE Result, 0.0s 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, 7 NumberOfCodeBlocks, 7 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 [2018-12-08 16:01:52,159 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 16:01:52,160 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 16:01:52,166 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 16:01:52,166 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 16:01:52,167 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 16:01:52,168 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 16:01:52,168 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 16:01:52,169 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 16:01:52,169 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 16:01:52,170 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 16:01:52,170 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 16:01:52,170 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 16:01:52,171 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 16:01:52,171 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 16:01:52,172 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 16:01:52,172 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 16:01:52,173 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 16:01:52,174 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 16:01:52,175 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 16:01:52,175 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 16:01:52,176 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 16:01:52,178 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 16:01:52,178 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 16:01:52,178 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 16:01:52,178 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 16:01:52,179 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 16:01:52,179 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 16:01:52,180 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 16:01:52,180 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 16:01:52,180 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 16:01:52,181 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 16:01:52,181 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 16:01:52,181 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 16:01:52,181 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 16:01:52,182 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 16:01:52,182 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7e706b00-4bdf-48a9-be6c-8b126b6e0a7a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-08 16:01:52,191 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 16:01:52,191 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 16:01:52,192 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 16:01:52,192 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 16:01:52,192 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 16:01:52,192 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 16:01:52,192 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 16:01:52,192 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 16:01:52,193 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 16:01:52,193 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 16:01:52,193 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 16:01:52,193 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 16:01:52,193 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 16:01:52,194 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 16:01:52,194 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 16:01:52,194 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 16:01:52,194 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 16:01:52,194 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 16:01:52,194 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 16:01:52,194 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 16:01:52,194 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 16:01:52,195 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 16:01:52,195 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 16:01:52,195 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 16:01:52,195 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 16:01:52,195 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 16:01:52,195 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 16:01:52,195 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 16:01:52,196 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 16:01:52,196 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 16:01:52,196 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 16:01:52,196 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-08 16:01:52,196 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 16:01:52,196 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 16:01:52,196 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-08 16:01:52,196 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_7e706b00-4bdf-48a9-be6c-8b126b6e0a7a/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 -> b4f17a4b481a4a7bc11b766c6bcdfce67786d9c2 [2018-12-08 16:01:52,220 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 16:01:52,227 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 16:01:52,229 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 16:01:52,230 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 16:01:52,231 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 16:01:52,231 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7e706b00-4bdf-48a9-be6c-8b126b6e0a7a/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2_true-unreach-call_true-termination.i [2018-12-08 16:01:52,267 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7e706b00-4bdf-48a9-be6c-8b126b6e0a7a/bin-2019/utaipan/data/c7974e53a/122dec98c6224c56a8ef5661449e19bc/FLAGef534ffe3 [2018-12-08 16:01:52,672 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 16:01:52,672 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7e706b00-4bdf-48a9-be6c-8b126b6e0a7a/sv-benchmarks/c/floats-cbmc-regression/float-to-double2_true-unreach-call_true-termination.i [2018-12-08 16:01:52,676 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7e706b00-4bdf-48a9-be6c-8b126b6e0a7a/bin-2019/utaipan/data/c7974e53a/122dec98c6224c56a8ef5661449e19bc/FLAGef534ffe3 [2018-12-08 16:01:52,683 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7e706b00-4bdf-48a9-be6c-8b126b6e0a7a/bin-2019/utaipan/data/c7974e53a/122dec98c6224c56a8ef5661449e19bc [2018-12-08 16:01:52,685 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 16:01:52,686 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 16:01:52,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 16:01:52,686 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 16:01:52,688 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 16:01:52,689 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 04:01:52" (1/1) ... [2018-12-08 16:01:52,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33b45ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:01:52, skipping insertion in model container [2018-12-08 16:01:52,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 04:01:52" (1/1) ... [2018-12-08 16:01:52,694 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 16:01:52,702 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 16:01:52,787 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 16:01:52,791 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 16:01:52,801 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 16:01:52,809 INFO L195 MainTranslator]: Completed translation [2018-12-08 16:01:52,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:01:52 WrapperNode [2018-12-08 16:01:52,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 16:01:52,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 16:01:52,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 16:01:52,810 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 16:01:52,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:01:52" (1/1) ... [2018-12-08 16:01:52,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:01:52" (1/1) ... [2018-12-08 16:01:52,823 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 16:01:52,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 16:01:52,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 16:01:52,823 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 16:01:52,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:01:52" (1/1) ... [2018-12-08 16:01:52,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:01:52" (1/1) ... [2018-12-08 16:01:52,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:01:52" (1/1) ... [2018-12-08 16:01:52,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:01:52" (1/1) ... [2018-12-08 16:01:52,833 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:01:52" (1/1) ... [2018-12-08 16:01:52,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:01:52" (1/1) ... [2018-12-08 16:01:52,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:01:52" (1/1) ... [2018-12-08 16:01:52,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 16:01:52,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 16:01:52,836 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 16:01:52,836 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 16:01:52,836 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:01:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7e706b00-4bdf-48a9-be6c-8b126b6e0a7a/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 16:01:52,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 16:01:52,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 16:01:52,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 16:01:52,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 16:01:52,897 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 16:01:52,897 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 16:01:52,965 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 16:01:52,965 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-08 16:01:52,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 04:01:52 BoogieIcfgContainer [2018-12-08 16:01:52,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 16:01:52,966 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 16:01:52,966 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 16:01:52,968 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 16:01:52,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 04:01:52" (1/3) ... [2018-12-08 16:01:52,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fedf43d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 04:01:52, skipping insertion in model container [2018-12-08 16:01:52,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 04:01:52" (2/3) ... [2018-12-08 16:01:52,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fedf43d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 04:01:52, skipping insertion in model container [2018-12-08 16:01:52,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 04:01:52" (3/3) ... [2018-12-08 16:01:52,970 INFO L112 eAbstractionObserver]: Analyzing ICFG float-to-double2_true-unreach-call_true-termination.i [2018-12-08 16:01:52,975 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 16:01:52,979 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 16:01:52,987 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 16:01:53,003 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 16:01:53,003 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 16:01:53,003 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 16:01:53,003 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 16:01:53,003 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 16:01:53,003 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 16:01:53,003 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 16:01:53,003 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 16:01:53,004 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 16:01:53,013 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-12-08 16:01:53,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 16:01:53,016 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 16:01:53,016 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-08 16:01:53,017 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 16:01:53,020 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 16:01:53,021 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-12-08 16:01:53,023 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 16:01:53,023 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7e706b00-4bdf-48a9-be6c-8b126b6e0a7a/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-08 16:01:53,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 16:01:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 16:01:53,055 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 16:01:53,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 16:01:53,090 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-08 16:01:53,098 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 16:01:53,098 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 16:01:53,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 16:01:53,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 16:01:53,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 16:01:53,109 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 3 states. [2018-12-08 16:01:53,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 16:01:53,122 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-12-08 16:01:53,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 16:01:53,124 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-08 16:01:53,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 16:01:53,128 INFO L225 Difference]: With dead ends: 18 [2018-12-08 16:01:53,128 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 16:01:53,130 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 16:01:53,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 16:01:53,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 16:01:53,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 16:01:53,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 16:01:53,145 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-12-08 16:01:53,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 16:01:53,145 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 16:01:53,145 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 16:01:53,145 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 16:01:53,145 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 16:01:53,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 16:01:53,173 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-08 16:01:53,173 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 16:01:53,174 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 16:01:53,174 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-08 16:01:53,174 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 16:01:53,174 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 16:01:53,174 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 3 12) the Hoare annotation is: true [2018-12-08 16:01:53,174 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 3 12) no Hoare annotation was computed. [2018-12-08 16:01:53,174 INFO L448 ceAbstractionStarter]: For program point L9(line 9) no Hoare annotation was computed. [2018-12-08 16:01:53,174 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2018-12-08 16:01:53,174 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 3 12) no Hoare annotation was computed. [2018-12-08 16:01:53,174 INFO L448 ceAbstractionStarter]: For program point L9-1(line 9) no Hoare annotation was computed. [2018-12-08 16:01:53,174 INFO L448 ceAbstractionStarter]: For program point L9-3(line 9) no Hoare annotation was computed. [2018-12-08 16:01:53,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 04:01:53 BoogieIcfgContainer [2018-12-08 16:01:53,177 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 16:01:53,177 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 16:01:53,177 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 16:01:53,177 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 16:01:53,178 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 04:01:52" (3/4) ... [2018-12-08 16:01:53,181 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 16:01:53,187 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 16:01:53,187 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 16:01:53,190 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-08 16:01:53,190 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-08 16:01:53,190 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-08 16:01:53,216 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7e706b00-4bdf-48a9-be6c-8b126b6e0a7a/bin-2019/utaipan/witness.graphml [2018-12-08 16:01:53,216 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 16:01:53,216 INFO L168 Benchmark]: Toolchain (without parser) took 531.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -148.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 16:01:53,217 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 16:01:53,218 INFO L168 Benchmark]: CACSL2BoogieTranslator took 123.42 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 16:01:53,218 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.83 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 16:01:53,219 INFO L168 Benchmark]: Boogie Preprocessor took 12.54 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 16:01:53,219 INFO L168 Benchmark]: RCFGBuilder took 130.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -189.8 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-08 16:01:53,220 INFO L168 Benchmark]: TraceAbstraction took 210.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. [2018-12-08 16:01:53,220 INFO L168 Benchmark]: Witness Printer took 39.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 16:01:53,223 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 123.42 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 932.6 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 12.83 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.54 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 130.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -189.8 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 210.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. * Witness Printer took 39.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: 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, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9 SDtfs, 3 SDslu, 6 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 120 SizeOfPredicates, 3 NumberOfNonLiveVariables, 15 ConjunctsInSsa, 4 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...