./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7_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_e0ec3068-b2dd-462e-a8cb-15f3307e5e03/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e0ec3068-b2dd-462e-a8cb-15f3307e5e03/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e0ec3068-b2dd-462e-a8cb-15f3307e5e03/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e0ec3068-b2dd-462e-a8cb-15f3307e5e03/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e0ec3068-b2dd-462e-a8cb-15f3307e5e03/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e0ec3068-b2dd-462e-a8cb-15f3307e5e03/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 cdec0b8c4f67592438879c69401fb208f793f01e .................................................................................................................................................................................................................................................. 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_e0ec3068-b2dd-462e-a8cb-15f3307e5e03/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e0ec3068-b2dd-462e-a8cb-15f3307e5e03/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e0ec3068-b2dd-462e-a8cb-15f3307e5e03/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e0ec3068-b2dd-462e-a8cb-15f3307e5e03/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e0ec3068-b2dd-462e-a8cb-15f3307e5e03/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e0ec3068-b2dd-462e-a8cb-15f3307e5e03/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 cdec0b8c4f67592438879c69401fb208f793f01e .............................................................................................................................................................................................................................................................................. 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 17:00:21,015 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:00:21,016 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:00:21,022 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:00:21,023 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:00:21,023 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:00:21,025 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:00:21,026 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:00:21,027 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:00:21,028 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:00:21,028 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:00:21,029 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:00:21,029 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:00:21,030 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:00:21,030 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:00:21,031 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:00:21,031 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:00:21,033 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:00:21,034 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:00:21,035 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:00:21,035 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:00:21,036 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:00:21,037 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:00:21,037 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:00:21,038 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:00:21,038 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:00:21,039 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:00:21,039 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:00:21,040 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:00:21,041 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:00:21,041 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:00:21,041 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:00:21,042 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:00:21,042 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:00:21,042 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:00:21,043 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:00:21,043 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e0ec3068-b2dd-462e-a8cb-15f3307e5e03/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 17:00:21,051 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:00:21,051 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:00:21,052 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 17:00:21,052 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 17:00:21,052 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 17:00:21,052 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 17:00:21,052 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 17:00:21,052 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 17:00:21,052 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 17:00:21,053 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 17:00:21,053 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 17:00:21,053 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 17:00:21,053 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 17:00:21,053 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:00:21,054 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:00:21,054 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:00:21,054 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:00:21,054 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:00:21,054 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 17:00:21,054 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:00:21,054 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 17:00:21,054 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:00:21,055 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:00:21,055 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:00:21,055 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 17:00:21,055 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:00:21,055 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:00:21,055 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:00:21,055 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 17:00:21,056 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:00:21,058 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:00:21,058 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:00:21,059 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 17:00:21,059 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 17:00:21,059 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:00:21,059 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 17:00:21,059 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 17:00:21,059 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_e0ec3068-b2dd-462e-a8cb-15f3307e5e03/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 -> cdec0b8c4f67592438879c69401fb208f793f01e [2018-11-18 17:00:21,085 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:00:21,095 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:00:21,097 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:00:21,099 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:00:21,099 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:00:21,100 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e0ec3068-b2dd-462e-a8cb-15f3307e5e03/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7_true-unreach-call_true-termination.i [2018-11-18 17:00:21,146 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e0ec3068-b2dd-462e-a8cb-15f3307e5e03/bin-2019/utaipan/data/af4f86a00/eb7d1fbaccd448cb970114b1f96a7890/FLAG4383e3720 [2018-11-18 17:00:21,452 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:00:21,453 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e0ec3068-b2dd-462e-a8cb-15f3307e5e03/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7_true-unreach-call_true-termination.i [2018-11-18 17:00:21,458 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e0ec3068-b2dd-462e-a8cb-15f3307e5e03/bin-2019/utaipan/data/af4f86a00/eb7d1fbaccd448cb970114b1f96a7890/FLAG4383e3720 [2018-11-18 17:00:21,467 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e0ec3068-b2dd-462e-a8cb-15f3307e5e03/bin-2019/utaipan/data/af4f86a00/eb7d1fbaccd448cb970114b1f96a7890 [2018-11-18 17:00:21,470 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:00:21,471 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:00:21,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:00:21,472 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:00:21,475 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:00:21,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:00:21" (1/1) ... [2018-11-18 17:00:21,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cf76dfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:21, skipping insertion in model container [2018-11-18 17:00:21,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:00:21" (1/1) ... [2018-11-18 17:00:21,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:00:21,503 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:00:21,617 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:00:21,621 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:00:21,636 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:00:21,644 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:00:21,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:21 WrapperNode [2018-11-18 17:00:21,644 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:00:21,645 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:00:21,645 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:00:21,645 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:00:21,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:21" (1/1) ... [2018-11-18 17:00:21,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:21" (1/1) ... [2018-11-18 17:00:21,658 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:00:21,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:00:21,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:00:21,658 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:00:21,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:21" (1/1) ... [2018-11-18 17:00:21,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:21" (1/1) ... [2018-11-18 17:00:21,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:21" (1/1) ... [2018-11-18 17:00:21,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:21" (1/1) ... [2018-11-18 17:00:21,667 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:21" (1/1) ... [2018-11-18 17:00:21,668 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:21" (1/1) ... [2018-11-18 17:00:21,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:21" (1/1) ... [2018-11-18 17:00:21,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:00:21,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:00:21,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:00:21,670 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:00:21,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e0ec3068-b2dd-462e-a8cb-15f3307e5e03/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 17:00:21,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 17:00:21,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 17:00:21,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:00:21,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:00:21,740 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 17:00:21,740 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 17:00:21,814 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:00:21,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:00:21 BoogieIcfgContainer [2018-11-18 17:00:21,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:00:21,815 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 17:00:21,815 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 17:00:21,817 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 17:00:21,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:00:21" (1/3) ... [2018-11-18 17:00:21,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cdcb018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:00:21, skipping insertion in model container [2018-11-18 17:00:21,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:21" (2/3) ... [2018-11-18 17:00:21,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cdcb018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:00:21, skipping insertion in model container [2018-11-18 17:00:21,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:00:21" (3/3) ... [2018-11-18 17:00:21,819 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp7_true-unreach-call_true-termination.i [2018-11-18 17:00:21,824 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 17:00:21,827 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 17:00:21,836 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 17:00:21,857 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 17:00:21,857 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 17:00:21,857 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 17:00:21,857 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:00:21,857 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:00:21,857 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 17:00:21,858 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:00:21,858 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 17:00:21,871 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-11-18 17:00:21,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 17:00:21,876 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:00:21,876 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:00:21,877 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:00:21,880 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:00:21,881 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-11-18 17:00:21,882 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:00:21,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:00:21,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:00:21,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:00:21,910 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:00:21,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:00:21,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:00:21,945 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 17:00:21,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 05:00:21 BoogieIcfgContainer [2018-11-18 17:00:21,960 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 17:00:21,961 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:00:21,961 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:00:21,961 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:00:21,961 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:00:21" (3/4) ... [2018-11-18 17:00:21,963 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 17:00:21,963 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:00:21,964 INFO L168 Benchmark]: Toolchain (without parser) took 493.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 958.2 MB in the beginning and 1.1 GB in the end (delta: -145.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:00:21,965 INFO L168 Benchmark]: CDTParser took 0.19 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 17:00:21,965 INFO L168 Benchmark]: CACSL2BoogieTranslator took 173.02 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:00:21,966 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.23 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:00:21,966 INFO L168 Benchmark]: Boogie Preprocessor took 11.67 ms. Allocated memory is still 1.0 GB. Free memory is still 944.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:00:21,967 INFO L168 Benchmark]: RCFGBuilder took 144.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -172.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-18 17:00:21,967 INFO L168 Benchmark]: TraceAbstraction took 145.60 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 17:00:21,968 INFO L168 Benchmark]: Witness Printer took 2.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:00:21,970 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 173.02 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 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 13.23 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.67 ms. Allocated memory is still 1.0 GB. Free memory is still 944.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 144.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -172.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 145.60 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 2.72 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 10, overapproximation of someBinaryArithmeticFLOAToperation at line 8, overapproximation of someUnaryFLOAToperation at line 5. Possible FailurePath: [L4] float f = 0x1.9e0c22p-101f; [L5] float g = -0x1.3c9014p-50f; [L6] float target = -0x1p-149f; [L8] float result = f * g; VAL [\old(argc)=2, argc=2, argv={1:0}, argv={1:0}, f=13567505/21267647932558653966460912964485513216] [L10] COND TRUE !(result == target) VAL [\old(argc)=2, argc=2, argv={1:0}, argv={1:0}, f=13567505/21267647932558653966460912964485513216] [L10] __VERIFIER_error() VAL [\old(argc)=2, argc=2, argv={1:0}, argv={1:0}, f=13567505/21267647932558653966460912964485513216] - 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, 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 0.1.23-5842f4b [2018-11-18 17:00:23,470 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:00:23,471 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:00:23,480 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:00:23,480 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:00:23,481 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:00:23,482 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:00:23,484 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:00:23,485 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:00:23,486 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:00:23,487 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:00:23,487 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:00:23,488 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:00:23,489 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:00:23,489 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:00:23,490 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:00:23,491 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:00:23,493 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:00:23,494 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:00:23,495 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:00:23,497 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:00:23,497 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:00:23,499 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:00:23,499 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:00:23,500 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:00:23,501 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:00:23,502 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:00:23,502 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:00:23,503 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:00:23,505 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:00:23,505 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:00:23,505 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:00:23,506 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:00:23,506 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:00:23,507 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:00:23,507 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:00:23,507 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e0ec3068-b2dd-462e-a8cb-15f3307e5e03/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 17:00:23,518 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:00:23,519 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:00:23,520 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 17:00:23,520 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 17:00:23,520 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 17:00:23,520 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 17:00:23,520 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 17:00:23,520 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 17:00:23,520 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 17:00:23,521 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 17:00:23,521 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:00:23,521 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:00:23,521 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:00:23,521 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:00:23,522 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 17:00:23,522 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:00:23,522 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 17:00:23,522 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 17:00:23,522 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 17:00:23,522 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:00:23,522 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:00:23,522 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:00:23,523 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 17:00:23,523 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:00:23,523 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:00:23,523 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:00:23,523 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 17:00:23,523 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:00:23,523 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:00:23,524 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:00:23,524 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 17:00:23,524 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 17:00:23,525 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:00:23,525 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 17:00:23,525 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 17:00:23,525 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_e0ec3068-b2dd-462e-a8cb-15f3307e5e03/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 -> cdec0b8c4f67592438879c69401fb208f793f01e [2018-11-18 17:00:23,555 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:00:23,565 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:00:23,567 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:00:23,569 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:00:23,569 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:00:23,570 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e0ec3068-b2dd-462e-a8cb-15f3307e5e03/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7_true-unreach-call_true-termination.i [2018-11-18 17:00:23,607 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e0ec3068-b2dd-462e-a8cb-15f3307e5e03/bin-2019/utaipan/data/6fa177782/f3c5a8abeeb244eca1613b86aab16faa/FLAGba42406be [2018-11-18 17:00:23,935 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:00:23,935 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e0ec3068-b2dd-462e-a8cb-15f3307e5e03/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7_true-unreach-call_true-termination.i [2018-11-18 17:00:23,939 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e0ec3068-b2dd-462e-a8cb-15f3307e5e03/bin-2019/utaipan/data/6fa177782/f3c5a8abeeb244eca1613b86aab16faa/FLAGba42406be [2018-11-18 17:00:24,370 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e0ec3068-b2dd-462e-a8cb-15f3307e5e03/bin-2019/utaipan/data/6fa177782/f3c5a8abeeb244eca1613b86aab16faa [2018-11-18 17:00:24,372 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:00:24,373 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:00:24,373 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:00:24,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:00:24,377 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:00:24,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:00:24" (1/1) ... [2018-11-18 17:00:24,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c1074a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:24, skipping insertion in model container [2018-11-18 17:00:24,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:00:24" (1/1) ... [2018-11-18 17:00:24,389 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:00:24,402 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:00:24,526 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:00:24,532 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:00:24,544 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:00:24,553 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:00:24,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:24 WrapperNode [2018-11-18 17:00:24,553 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:00:24,554 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:00:24,554 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:00:24,554 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:00:24,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:24" (1/1) ... [2018-11-18 17:00:24,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:24" (1/1) ... [2018-11-18 17:00:24,568 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:00:24,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:00:24,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:00:24,568 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:00:24,574 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:24" (1/1) ... [2018-11-18 17:00:24,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:24" (1/1) ... [2018-11-18 17:00:24,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:24" (1/1) ... [2018-11-18 17:00:24,575 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:24" (1/1) ... [2018-11-18 17:00:24,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:24" (1/1) ... [2018-11-18 17:00:24,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:24" (1/1) ... [2018-11-18 17:00:24,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:24" (1/1) ... [2018-11-18 17:00:24,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:00:24,582 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:00:24,582 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:00:24,582 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:00:24,583 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e0ec3068-b2dd-462e-a8cb-15f3307e5e03/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 17:00:24,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 17:00:24,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 17:00:24,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:00:24,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:00:24,667 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 17:00:24,667 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 17:00:24,756 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:00:24,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:00:24 BoogieIcfgContainer [2018-11-18 17:00:24,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:00:24,757 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 17:00:24,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 17:00:24,759 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 17:00:24,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:00:24" (1/3) ... [2018-11-18 17:00:24,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e1c87c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:00:24, skipping insertion in model container [2018-11-18 17:00:24,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:00:24" (2/3) ... [2018-11-18 17:00:24,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e1c87c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:00:24, skipping insertion in model container [2018-11-18 17:00:24,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:00:24" (3/3) ... [2018-11-18 17:00:24,761 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp7_true-unreach-call_true-termination.i [2018-11-18 17:00:24,767 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 17:00:24,771 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 17:00:24,780 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 17:00:24,800 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 17:00:24,801 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 17:00:24,801 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 17:00:24,801 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 17:00:24,801 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:00:24,801 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:00:24,801 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 17:00:24,801 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:00:24,801 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 17:00:24,816 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-11-18 17:00:24,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 17:00:24,821 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:00:24,822 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:00:24,824 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 17:00:24,828 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:00:24,828 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-11-18 17:00:24,831 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 17:00:24,831 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e0ec3068-b2dd-462e-a8cb-15f3307e5e03/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 17:00:24,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:00:24,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:00:24,930 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:00:24,967 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 17:00:24,967 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 17:00:24,979 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:00:24,979 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 17:00:24,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 17:00:24,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 17:00:24,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:00:24,992 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 3 states. [2018-11-18 17:00:25,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:00:25,012 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-11-18 17:00:25,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 17:00:25,013 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-18 17:00:25,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:00:25,018 INFO L225 Difference]: With dead ends: 18 [2018-11-18 17:00:25,018 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 17:00:25,020 INFO L604 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 [2018-11-18 17:00:25,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 17:00:25,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 17:00:25,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 17:00:25,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 17:00:25,036 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-11-18 17:00:25,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:00:25,036 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 17:00:25,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 17:00:25,036 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 17:00:25,036 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 17:00:25,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 17:00:25,068 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 17:00:25,068 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 17:00:25,068 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 17:00:25,068 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 17:00:25,069 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 17:00:25,069 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 17:00:25,069 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2018-11-18 17:00:25,069 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 3 13) the Hoare annotation is: true [2018-11-18 17:00:25,069 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 3 13) no Hoare annotation was computed. [2018-11-18 17:00:25,069 INFO L425 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-11-18 17:00:25,069 INFO L425 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-11-18 17:00:25,070 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 3 13) no Hoare annotation was computed. [2018-11-18 17:00:25,070 INFO L425 ceAbstractionStarter]: For program point L10-3(line 10) no Hoare annotation was computed. [2018-11-18 17:00:25,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 05:00:25 BoogieIcfgContainer [2018-11-18 17:00:25,072 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 17:00:25,073 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:00:25,073 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:00:25,073 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:00:25,074 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:00:24" (3/4) ... [2018-11-18 17:00:25,077 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 17:00:25,083 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 17:00:25,084 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 17:00:25,087 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 17:00:25,087 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 17:00:25,088 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 17:00:25,110 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e0ec3068-b2dd-462e-a8cb-15f3307e5e03/bin-2019/utaipan/witness.graphml [2018-11-18 17:00:25,110 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:00:25,111 INFO L168 Benchmark]: Toolchain (without parser) took 738.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -139.4 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. [2018-11-18 17:00:25,112 INFO L168 Benchmark]: CDTParser took 0.16 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 17:00:25,112 INFO L168 Benchmark]: CACSL2BoogieTranslator took 180.16 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 17:00:25,112 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.07 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 17:00:25,113 INFO L168 Benchmark]: Boogie Preprocessor took 13.67 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:00:25,113 INFO L168 Benchmark]: RCFGBuilder took 174.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -186.7 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:00:25,114 INFO L168 Benchmark]: TraceAbstraction took 315.17 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: 31.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. [2018-11-18 17:00:25,114 INFO L168 Benchmark]: Witness Printer took 37.21 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: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2018-11-18 17:00:25,116 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 180.16 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 14.07 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. * Boogie Preprocessor took 13.67 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 174.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -186.7 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 315.17 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: 31.2 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. * Witness Printer took 37.21 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: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. SAFE Result, 0.2s 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, 138 SizeOfPredicates, 4 NumberOfNonLiveVariables, 21 ConjunctsInSsa, 5 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...