./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1072c_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d24e50d4-68ac-43a8-b769-604308ae2fad/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d24e50d4-68ac-43a8-b769-604308ae2fad/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d24e50d4-68ac-43a8-b769-604308ae2fad/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d24e50d4-68ac-43a8-b769-604308ae2fad/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1072c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d24e50d4-68ac-43a8-b769-604308ae2fad/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d24e50d4-68ac-43a8-b769-604308ae2fad/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 8c9432e09ab34163f77fe447dc3730a7acfb00e3 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_d24e50d4-68ac-43a8-b769-604308ae2fad/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d24e50d4-68ac-43a8-b769-604308ae2fad/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d24e50d4-68ac-43a8-b769-604308ae2fad/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d24e50d4-68ac-43a8-b769-604308ae2fad/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1072c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d24e50d4-68ac-43a8-b769-604308ae2fad/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d24e50d4-68ac-43a8-b769-604308ae2fad/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 8c9432e09ab34163f77fe447dc3730a7acfb00e3 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 04:04:59,030 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 04:04:59,031 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 04:04:59,038 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 04:04:59,038 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 04:04:59,038 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 04:04:59,039 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 04:04:59,040 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 04:04:59,041 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 04:04:59,041 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 04:04:59,042 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 04:04:59,042 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 04:04:59,043 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 04:04:59,043 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 04:04:59,044 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 04:04:59,045 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 04:04:59,045 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 04:04:59,046 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 04:04:59,048 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 04:04:59,049 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 04:04:59,049 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 04:04:59,050 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 04:04:59,052 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 04:04:59,052 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 04:04:59,052 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 04:04:59,053 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 04:04:59,053 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 04:04:59,054 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 04:04:59,054 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 04:04:59,055 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 04:04:59,055 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 04:04:59,056 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 04:04:59,056 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 04:04:59,056 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 04:04:59,057 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 04:04:59,057 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 04:04:59,057 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d24e50d4-68ac-43a8-b769-604308ae2fad/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 04:04:59,065 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 04:04:59,065 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 04:04:59,066 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 04:04:59,066 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 04:04:59,066 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 04:04:59,066 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 04:04:59,066 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 04:04:59,066 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 04:04:59,067 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 04:04:59,067 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 04:04:59,067 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 04:04:59,067 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 04:04:59,067 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 04:04:59,068 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 04:04:59,068 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 04:04:59,068 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 04:04:59,068 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 04:04:59,068 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 04:04:59,068 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 04:04:59,068 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 04:04:59,069 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 04:04:59,069 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 04:04:59,069 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 04:04:59,069 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 04:04:59,069 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 04:04:59,069 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 04:04:59,069 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 04:04:59,069 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 04:04:59,070 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 04:04:59,070 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 04:04:59,070 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 04:04:59,070 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 04:04:59,070 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 04:04:59,070 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 04:04:59,070 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 04:04:59,071 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 04:04:59,071 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 04:04:59,071 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_d24e50d4-68ac-43a8-b769-604308ae2fad/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 -> 8c9432e09ab34163f77fe447dc3730a7acfb00e3 [2018-11-23 04:04:59,094 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 04:04:59,104 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 04:04:59,106 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 04:04:59,107 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 04:04:59,108 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 04:04:59,108 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d24e50d4-68ac-43a8-b769-604308ae2fad/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1072c_true-unreach-call.c [2018-11-23 04:04:59,154 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d24e50d4-68ac-43a8-b769-604308ae2fad/bin-2019/utaipan/data/3c3ab2ccb/35268ead10a64bac90c9178fbf3bf9c8/FLAG7b0b8ec9e [2018-11-23 04:04:59,464 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 04:04:59,464 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d24e50d4-68ac-43a8-b769-604308ae2fad/sv-benchmarks/c/float-newlib/float_req_bl_1072c_true-unreach-call.c [2018-11-23 04:04:59,469 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d24e50d4-68ac-43a8-b769-604308ae2fad/bin-2019/utaipan/data/3c3ab2ccb/35268ead10a64bac90c9178fbf3bf9c8/FLAG7b0b8ec9e [2018-11-23 04:04:59,480 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d24e50d4-68ac-43a8-b769-604308ae2fad/bin-2019/utaipan/data/3c3ab2ccb/35268ead10a64bac90c9178fbf3bf9c8 [2018-11-23 04:04:59,482 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 04:04:59,482 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 04:04:59,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 04:04:59,483 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 04:04:59,486 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 04:04:59,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:04:59" (1/1) ... [2018-11-23 04:04:59,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ebf8353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:59, skipping insertion in model container [2018-11-23 04:04:59,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:04:59" (1/1) ... [2018-11-23 04:04:59,494 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 04:04:59,509 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 04:04:59,632 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:04:59,635 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 04:04:59,653 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:04:59,669 INFO L195 MainTranslator]: Completed translation [2018-11-23 04:04:59,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:59 WrapperNode [2018-11-23 04:04:59,669 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 04:04:59,670 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 04:04:59,670 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 04:04:59,670 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 04:04:59,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:59" (1/1) ... [2018-11-23 04:04:59,682 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:59" (1/1) ... [2018-11-23 04:04:59,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 04:04:59,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 04:04:59,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 04:04:59,687 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 04:04:59,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:59" (1/1) ... [2018-11-23 04:04:59,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:59" (1/1) ... [2018-11-23 04:04:59,736 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:59" (1/1) ... [2018-11-23 04:04:59,736 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:59" (1/1) ... [2018-11-23 04:04:59,744 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:59" (1/1) ... [2018-11-23 04:04:59,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:59" (1/1) ... [2018-11-23 04:04:59,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:59" (1/1) ... [2018-11-23 04:04:59,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 04:04:59,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 04:04:59,752 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 04:04:59,752 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 04:04:59,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d24e50d4-68ac-43a8-b769-604308ae2fad/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 [2018-11-23 04:04:59,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-23 04:04:59,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 04:04:59,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 04:04:59,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 04:04:59,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-23 04:04:59,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 04:04:59,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 04:04:59,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 04:04:59,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 04:04:59,789 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 04:04:59,789 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 04:04:59,789 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-11-23 04:04:59,789 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-11-23 04:04:59,790 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-23 04:04:59,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-23 04:04:59,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 04:04:59,975 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 04:04:59,975 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-11-23 04:04:59,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:04:59 BoogieIcfgContainer [2018-11-23 04:04:59,976 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 04:04:59,977 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 04:04:59,977 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 04:04:59,979 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 04:04:59,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:04:59" (1/3) ... [2018-11-23 04:04:59,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e22eafd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:04:59, skipping insertion in model container [2018-11-23 04:04:59,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:04:59" (2/3) ... [2018-11-23 04:04:59,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e22eafd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:04:59, skipping insertion in model container [2018-11-23 04:04:59,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:04:59" (3/3) ... [2018-11-23 04:04:59,982 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072c_true-unreach-call.c [2018-11-23 04:04:59,988 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 04:04:59,992 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 04:05:00,002 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 04:05:00,021 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 04:05:00,021 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 04:05:00,021 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 04:05:00,022 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 04:05:00,022 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 04:05:00,022 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 04:05:00,022 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 04:05:00,022 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 04:05:00,033 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-11-23 04:05:00,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-23 04:05:00,036 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:05:00,037 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:05:00,038 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:05:00,042 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:05:00,042 INFO L82 PathProgramCache]: Analyzing trace with hash 753691903, now seen corresponding path program 1 times [2018-11-23 04:05:00,043 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 04:05:00,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:05:00,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:05:00,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:05:00,081 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 04:05:00,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:05:00,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:05:00,137 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:05:00,138 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 04:05:00,138 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 04:05:00,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 04:05:00,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 04:05:00,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 04:05:00,152 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2018-11-23 04:05:00,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:05:00,169 INFO L93 Difference]: Finished difference Result 68 states and 93 transitions. [2018-11-23 04:05:00,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 04:05:00,170 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-23 04:05:00,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:05:00,177 INFO L225 Difference]: With dead ends: 68 [2018-11-23 04:05:00,177 INFO L226 Difference]: Without dead ends: 34 [2018-11-23 04:05:00,180 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 04:05:00,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-23 04:05:00,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-23 04:05:00,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-23 04:05:00,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-11-23 04:05:00,208 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 18 [2018-11-23 04:05:00,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:05:00,209 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-11-23 04:05:00,209 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 04:05:00,209 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-11-23 04:05:00,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-23 04:05:00,210 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:05:00,210 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:05:00,210 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:05:00,210 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:05:00,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1111015325, now seen corresponding path program 1 times [2018-11-23 04:05:00,210 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 04:05:00,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:05:00,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:05:00,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:05:00,211 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 04:05:00,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:05:00,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:05:00,281 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); VAL [|#NULL.base|=6442450948, |#NULL.offset|=6442450945, |old(#NULL.base)|=6442450948, |old(#NULL.offset)|=6442450945] [?] #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=6442450948, |old(#NULL.offset)|=6442450945] [?] assume true; VAL [|#NULL.base|=0, |#NULL.offset|=0, |old(#NULL.base)|=6442450948, |old(#NULL.offset)|=6442450945] [?] RET #94#return; VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret11 := main(); VAL [|#NULL.base|=0, |#NULL.offset|=0] [?] ~x~0 := 0.0; VAL [main_~x~0=0.0, |#NULL.base|=0, |#NULL.offset|=0] [?] CALL call #t~ret8 := trunc_float(~x~0); VAL [|#NULL.base|=0, |#NULL.offset|=0, |trunc_float_#in~x|=0.0] [?] ~x := #in~x;havoc ~signbit~0;havoc ~w~0;havoc ~exponent_less_127~0; VAL [trunc_float_~x=0.0, |#NULL.base|=0, |#NULL.offset|=0, |trunc_float_#in~x|=0.0] [?] call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.alloc(4);call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4);call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4);~w~0 := (if #t~mem0 % 4294967296 % 4294967296 <= 2147483647 then #t~mem0 % 4294967296 % 4294967296 else #t~mem0 % 4294967296 % 4294967296 - 4294967296);call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4);havoc #t~mem0;havoc #t~union1;call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset);havoc ~#gf_u~0.base, ~#gf_u~0.offset; VAL [trunc_float_~w~0=2147483647, trunc_float_~x=0.0, |#NULL.base|=0, |#NULL.offset|=0, |trunc_float_#in~x|=0.0] [?] goto; VAL [trunc_float_~w~0=2147483647, trunc_float_~x=0.0, |#NULL.base|=0, |#NULL.offset|=0, |trunc_float_#in~x|=0.0] [?] ~signbit~0 := (if ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 - 4294967296);~exponent_less_127~0 := ~bitwiseAnd(~w~0, 2139095040) / 8388608 - 127; VAL [trunc_float_~exponent_less_127~0=255, trunc_float_~signbit~0=0, trunc_float_~w~0=2147483647, trunc_float_~x=0.0, |#NULL.base|=0, |#NULL.offset|=0, |trunc_float_#in~x|=0.0] [?] assume !(~exponent_less_127~0 < 23); VAL [trunc_float_~exponent_less_127~0=255, trunc_float_~signbit~0=0, trunc_float_~w~0=2147483647, trunc_float_~x=0.0, |#NULL.base|=0, |#NULL.offset|=0, |trunc_float_#in~x|=0.0] [?] assume 255 == ~exponent_less_127~0;#res := ~someBinaryArithmeticFLOAToperation(~x, ~x); VAL [trunc_float_~exponent_less_127~0=255, trunc_float_~signbit~0=0, trunc_float_~w~0=2147483647, trunc_float_~x=0.0, |#NULL.base|=0, |#NULL.offset|=0, |trunc_float_#in~x|=0.0] [?] assume true; VAL [trunc_float_~exponent_less_127~0=255, trunc_float_~signbit~0=0, trunc_float_~w~0=2147483647, trunc_float_~x=0.0, |#NULL.base|=0, |#NULL.offset|=0, |trunc_float_#in~x|=0.0] [?] RET #98#return; VAL [main_~x~0=0.0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~ret8|=6442450944.0] [?] ~res~0 := #t~ret8;havoc #t~ret8;#t~short10 := ~someBinaryFLOATComparisonOperation(~res~0, 0.0); VAL [main_~res~0=6442450944.0, main_~x~0=0.0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~short10|=false] [?] assume !#t~short10; VAL [main_~res~0=6442450944.0, main_~x~0=0.0, |#NULL.base|=0, |#NULL.offset|=0, |main_#t~short10|=false] [?] assume !#t~short10;havoc #t~ret9;havoc #t~short10; VAL [main_~res~0=6442450944.0, main_~x~0=0.0, |#NULL.base|=0, |#NULL.offset|=0] [?] assume !false; VAL [main_~res~0=6442450944.0, main_~x~0=0.0, |#NULL.base|=0, |#NULL.offset|=0] [?] CALL call ULTIMATE.init(); VAL [#NULL.base=6442450948, #NULL.offset=6442450945, old(#NULL.base)=6442450948, old(#NULL.offset)=6442450945] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=6442450948, old(#NULL.offset)=6442450945] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=6442450948, old(#NULL.offset)=6442450945] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret11 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L62] ~x~0 := 0.0; VAL [#NULL.base=0, #NULL.offset=0, ~x~0=0.0] [L63] CALL call #t~ret8 := trunc_float(~x~0); VAL [#in~x=0.0, #NULL.base=0, #NULL.offset=0] [L12-L41] ~x := #in~x; [L13] havoc ~signbit~0; [L13] havoc ~w~0; [L13] havoc ~exponent_less_127~0; VAL [#in~x=0.0, #NULL.base=0, #NULL.offset=0, ~x=0.0] [L15] call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.alloc(4); [L16] call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L17] call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4); [L17] ~w~0 := (if #t~mem0 % 4294967296 % 4294967296 <= 2147483647 then #t~mem0 % 4294967296 % 4294967296 else #t~mem0 % 4294967296 % 4294967296 - 4294967296); [L17] call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L17] havoc #t~mem0; [L17] havoc #t~union1; [L15] call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); [L15] havoc ~#gf_u~0.base, ~#gf_u~0.offset; VAL [#in~x=0.0, #NULL.base=0, #NULL.offset=0, ~w~0=2147483647, ~x=0.0] [L19] ~signbit~0 := (if ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 - 4294967296); [L20] ~exponent_less_127~0 := ~bitwiseAnd(~w~0, 2139095040) / 8388608 - 127; VAL [#in~x=0.0, #NULL.base=0, #NULL.offset=0, ~exponent_less_127~0=255, ~signbit~0=0, ~w~0=2147483647, ~x=0.0] [L21-L39] assume !(~exponent_less_127~0 < 23); VAL [#in~x=0.0, #NULL.base=0, #NULL.offset=0, ~exponent_less_127~0=255, ~signbit~0=0, ~w~0=2147483647, ~x=0.0] [L37-L38] assume 255 == ~exponent_less_127~0; [L38] #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); VAL [#in~x=0.0, #NULL.base=0, #NULL.offset=0, ~exponent_less_127~0=255, ~signbit~0=0, ~w~0=2147483647, ~x=0.0] [L12-L41] ensures true; VAL [#in~x=0.0, #NULL.base=0, #NULL.offset=0, ~exponent_less_127~0=255, ~signbit~0=0, ~w~0=2147483647, ~x=0.0] [L63] RET call #t~ret8 := trunc_float(~x~0); VAL [#NULL.base=0, #NULL.offset=0, #t~ret8=6.442450944E9, ~x~0=0.0] [L63] ~res~0 := #t~ret8; [L63] havoc #t~ret8; [L66] #t~short10 := ~someBinaryFLOATComparisonOperation(~res~0, 0.0); VAL [#NULL.base=0, #NULL.offset=0, #t~short10=false, ~res~0=6.442450944E9, ~x~0=0.0] [L66] assume !#t~short10; VAL [#NULL.base=0, #NULL.offset=0, #t~short10=false, ~res~0=6.442450944E9, ~x~0=0.0] [L66-L69] assume !#t~short10; [L66] havoc #t~ret9; [L66] havoc #t~short10; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=6.442450944E9, ~x~0=0.0] [L67] assert false; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=6.442450944E9, ~x~0=0.0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL.base=6442450948, #NULL.offset=6442450945, old(#NULL.base)=6442450948, old(#NULL.offset)=6442450945] [?] #NULL.base, #NULL.offset := 0, 0; [?] #valid := #valid[0 := 0]; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=6442450948, old(#NULL.offset)=6442450945] [?] ensures true; VAL [#NULL.base=0, #NULL.offset=0, old(#NULL.base)=6442450948, old(#NULL.offset)=6442450945] [?] RET call ULTIMATE.init(); VAL [#NULL.base=0, #NULL.offset=0] [?] CALL call #t~ret11 := main(); VAL [#NULL.base=0, #NULL.offset=0] [L62] ~x~0 := 0.0; VAL [#NULL.base=0, #NULL.offset=0, ~x~0=0.0] [L63] CALL call #t~ret8 := trunc_float(~x~0); VAL [#in~x=0.0, #NULL.base=0, #NULL.offset=0] [L12-L41] ~x := #in~x; [L13] havoc ~signbit~0; [L13] havoc ~w~0; [L13] havoc ~exponent_less_127~0; VAL [#in~x=0.0, #NULL.base=0, #NULL.offset=0, ~x=0.0] [L15] call ~#gf_u~0.base, ~#gf_u~0.offset := #Ultimate.alloc(4); [L16] call write~real(~x, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L17] call #t~mem0 := read~int(~#gf_u~0.base, ~#gf_u~0.offset, 4); [L17] ~w~0 := (if #t~mem0 % 4294967296 % 4294967296 <= 2147483647 then #t~mem0 % 4294967296 % 4294967296 else #t~mem0 % 4294967296 % 4294967296 - 4294967296); [L17] call write~real(#t~union1, ~#gf_u~0.base, ~#gf_u~0.offset, 4); [L17] havoc #t~mem0; [L17] havoc #t~union1; [L15] call ULTIMATE.dealloc(~#gf_u~0.base, ~#gf_u~0.offset); [L15] havoc ~#gf_u~0.base, ~#gf_u~0.offset; VAL [#in~x=0.0, #NULL.base=0, #NULL.offset=0, ~w~0=2147483647, ~x=0.0] [L19] ~signbit~0 := (if ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 - 4294967296); [L20] ~exponent_less_127~0 := ~bitwiseAnd(~w~0, 2139095040) / 8388608 - 127; VAL [#in~x=0.0, #NULL.base=0, #NULL.offset=0, ~exponent_less_127~0=255, ~signbit~0=0, ~w~0=2147483647, ~x=0.0] [L21-L39] assume !(~exponent_less_127~0 < 23); VAL [#in~x=0.0, #NULL.base=0, #NULL.offset=0, ~exponent_less_127~0=255, ~signbit~0=0, ~w~0=2147483647, ~x=0.0] [L37-L38] assume 255 == ~exponent_less_127~0; [L38] #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); VAL [#in~x=0.0, #NULL.base=0, #NULL.offset=0, ~exponent_less_127~0=255, ~signbit~0=0, ~w~0=2147483647, ~x=0.0] [L12-L41] ensures true; VAL [#in~x=0.0, #NULL.base=0, #NULL.offset=0, ~exponent_less_127~0=255, ~signbit~0=0, ~w~0=2147483647, ~x=0.0] [L63] RET call #t~ret8 := trunc_float(~x~0); VAL [#NULL.base=0, #NULL.offset=0, #t~ret8=6.442450944E9, ~x~0=0.0] [L63] ~res~0 := #t~ret8; [L63] havoc #t~ret8; [L66] #t~short10 := ~someBinaryFLOATComparisonOperation(~res~0, 0.0); VAL [#NULL.base=0, #NULL.offset=0, #t~short10=false, ~res~0=6.442450944E9, ~x~0=0.0] [L66] assume !#t~short10; VAL [#NULL.base=0, #NULL.offset=0, #t~short10=false, ~res~0=6.442450944E9, ~x~0=0.0] [L66-L69] assume !#t~short10; [L66] havoc #t~ret9; [L66] havoc #t~short10; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=6.442450944E9, ~x~0=0.0] [L67] assert false; VAL [#NULL.base=0, #NULL.offset=0, ~res~0=6.442450944E9, ~x~0=0.0] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=6442450948, #NULL!offset=6442450945, old(#NULL!base)=6442450948, old(#NULL!offset)=6442450945] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=6442450948, old(#NULL!offset)=6442450945] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret11 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L62] ~x~0 := 0.0; VAL [#NULL!base=0, #NULL!offset=0, ~x~0=0.0] [L63] CALL call #t~ret8 := trunc_float(~x~0); VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0] [L12-L41] ~x := #in~x; [L13] havoc ~signbit~0; [L13] havoc ~w~0; [L13] havoc ~exponent_less_127~0; VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~x=0.0] [L15] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L16] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] ~w~0 := (if #t~mem0 % 4294967296 % 4294967296 <= 2147483647 then #t~mem0 % 4294967296 % 4294967296 else #t~mem0 % 4294967296 % 4294967296 - 4294967296); [L17] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] havoc #t~mem0; [L17] havoc #t~union1; [L15] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L15] havoc ~#gf_u~0; VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~w~0=2147483647, ~x=0.0] [L19] ~signbit~0 := (if ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 - 4294967296); [L20] ~exponent_less_127~0 := ~bitwiseAnd(~w~0, 2139095040) / 8388608 - 127; VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=255, ~signbit~0=0, ~w~0=2147483647, ~x=0.0] [L21] COND FALSE !(~exponent_less_127~0 < 23) VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=255, ~signbit~0=0, ~w~0=2147483647, ~x=0.0] [L37] COND TRUE 255 == ~exponent_less_127~0 [L38] #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=255, ~signbit~0=0, ~w~0=2147483647, ~x=0.0] [L63] RET call #t~ret8 := trunc_float(~x~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret8=6.442450944E9, ~x~0=0.0] [L63] ~res~0 := #t~ret8; [L63] havoc #t~ret8; [L66] #t~short10 := ~someBinaryFLOATComparisonOperation(~res~0, 0.0); VAL [#NULL!base=0, #NULL!offset=0, #t~short10=false, ~res~0=6.442450944E9, ~x~0=0.0] [L66] COND FALSE !(#t~short10) VAL [#NULL!base=0, #NULL!offset=0, #t~short10=false, ~res~0=6.442450944E9, ~x~0=0.0] [L66] COND TRUE !#t~short10 [L66] havoc #t~ret9; [L66] havoc #t~short10; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=6.442450944E9, ~x~0=0.0] [L67] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=6.442450944E9, ~x~0=0.0] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=6442450948, #NULL!offset=6442450945, old(#NULL!base)=6442450948, old(#NULL!offset)=6442450945] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=6442450948, old(#NULL!offset)=6442450945] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret11 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L62] ~x~0 := 0.0; VAL [#NULL!base=0, #NULL!offset=0, ~x~0=0.0] [L63] CALL call #t~ret8 := trunc_float(~x~0); VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0] [L12-L41] ~x := #in~x; [L13] havoc ~signbit~0; [L13] havoc ~w~0; [L13] havoc ~exponent_less_127~0; VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~x=0.0] [L15] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L16] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] ~w~0 := (if #t~mem0 % 4294967296 % 4294967296 <= 2147483647 then #t~mem0 % 4294967296 % 4294967296 else #t~mem0 % 4294967296 % 4294967296 - 4294967296); [L17] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] havoc #t~mem0; [L17] havoc #t~union1; [L15] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L15] havoc ~#gf_u~0; VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~w~0=2147483647, ~x=0.0] [L19] ~signbit~0 := (if ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 - 4294967296); [L20] ~exponent_less_127~0 := ~bitwiseAnd(~w~0, 2139095040) / 8388608 - 127; VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=255, ~signbit~0=0, ~w~0=2147483647, ~x=0.0] [L21] COND FALSE !(~exponent_less_127~0 < 23) VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=255, ~signbit~0=0, ~w~0=2147483647, ~x=0.0] [L37] COND TRUE 255 == ~exponent_less_127~0 [L38] #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=255, ~signbit~0=0, ~w~0=2147483647, ~x=0.0] [L63] RET call #t~ret8 := trunc_float(~x~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret8=6.442450944E9, ~x~0=0.0] [L63] ~res~0 := #t~ret8; [L63] havoc #t~ret8; [L66] #t~short10 := ~someBinaryFLOATComparisonOperation(~res~0, 0.0); VAL [#NULL!base=0, #NULL!offset=0, #t~short10=false, ~res~0=6.442450944E9, ~x~0=0.0] [L66] COND FALSE !(#t~short10) VAL [#NULL!base=0, #NULL!offset=0, #t~short10=false, ~res~0=6.442450944E9, ~x~0=0.0] [L66] COND TRUE !#t~short10 [L66] havoc #t~ret9; [L66] havoc #t~short10; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=6.442450944E9, ~x~0=0.0] [L67] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=6.442450944E9, ~x~0=0.0] [?] CALL call ULTIMATE.init(); VAL [#NULL!base=6442450948, #NULL!offset=6442450945, old(#NULL!base)=6442450948, old(#NULL!offset)=6442450945] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=6442450948, old(#NULL!offset)=6442450945] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret11 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L62] ~x~0 := 0.0; VAL [#NULL!base=0, #NULL!offset=0, ~x~0=0.0] [L63] CALL call #t~ret8 := trunc_float(~x~0); VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0] [L12-L41] ~x := #in~x; [L13] havoc ~signbit~0; [L13] havoc ~w~0; [L13] havoc ~exponent_less_127~0; VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~x=0.0] [L15] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L16] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] ~w~0 := (if #t~mem0 % 4294967296 % 4294967296 <= 2147483647 then #t~mem0 % 4294967296 % 4294967296 else #t~mem0 % 4294967296 % 4294967296 - 4294967296); [L17] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] havoc #t~mem0; [L17] havoc #t~union1; [L15] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L15] havoc ~#gf_u~0; VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~w~0=2147483647, ~x=0.0] [L19] ~signbit~0 := (if ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 - 4294967296); [L20] ~exponent_less_127~0 := ~bitwiseAnd(~w~0, 2139095040) / 8388608 - 127; VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=255, ~signbit~0=0, ~w~0=2147483647, ~x=0.0] [L21] COND FALSE !(~exponent_less_127~0 < 23) VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=255, ~signbit~0=0, ~w~0=2147483647, ~x=0.0] [L37] COND TRUE 255 == ~exponent_less_127~0 [L38] #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=255, ~signbit~0=0, ~w~0=2147483647, ~x=0.0] [L63] RET call #t~ret8 := trunc_float(~x~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret8=6.442450944E9, ~x~0=0.0] [L63] ~res~0 := #t~ret8; [L63] havoc #t~ret8; [L66] #t~short10 := ~someBinaryFLOATComparisonOperation(~res~0, 0.0); VAL [#NULL!base=0, #NULL!offset=0, #t~short10=false, ~res~0=6.442450944E9, ~x~0=0.0] [L66] COND FALSE !(#t~short10) VAL [#NULL!base=0, #NULL!offset=0, #t~short10=false, ~res~0=6.442450944E9, ~x~0=0.0] [L66] COND TRUE !#t~short10 [L66] havoc #t~ret9; [L66] havoc #t~short10; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=6.442450944E9, ~x~0=0.0] [L67] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=6.442450944E9, ~x~0=0.0] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); VAL [#NULL!base=6442450948, #NULL!offset=6442450945, old(#NULL!base)=6442450948, old(#NULL!offset)=6442450945] [?] #NULL := { base: 0, offset: 0 }; [?] #valid[0] := 0; VAL [#NULL!base=0, #NULL!offset=0, old(#NULL!base)=6442450948, old(#NULL!offset)=6442450945] [?] RET call ULTIMATE.init(); VAL [#NULL!base=0, #NULL!offset=0] [?] CALL call #t~ret11 := main(); VAL [#NULL!base=0, #NULL!offset=0] [L62] ~x~0 := 0.0; VAL [#NULL!base=0, #NULL!offset=0, ~x~0=0.0] [L63] CALL call #t~ret8 := trunc_float(~x~0); VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0] [L12-L41] ~x := #in~x; [L13] havoc ~signbit~0; [L13] havoc ~w~0; [L13] havoc ~exponent_less_127~0; VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~x=0.0] [L15] FCALL call ~#gf_u~0 := #Ultimate.alloc(4); [L16] FCALL call write~real(~x, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] FCALL call #t~mem0 := read~int({ base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] ~w~0 := (if #t~mem0 % 4294967296 % 4294967296 <= 2147483647 then #t~mem0 % 4294967296 % 4294967296 else #t~mem0 % 4294967296 % 4294967296 - 4294967296); [L17] FCALL call write~real(#t~union1, { base: ~#gf_u~0!base, offset: ~#gf_u~0!offset }, 4); [L17] havoc #t~mem0; [L17] havoc #t~union1; [L15] FCALL call ULTIMATE.dealloc(~#gf_u~0); [L15] havoc ~#gf_u~0; VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~w~0=2147483647, ~x=0.0] [L19] ~signbit~0 := (if ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 else ~bitwiseAnd(~w~0, 2147483648) % 4294967296 % 4294967296 - 4294967296); [L20] ~exponent_less_127~0 := ~bitwiseAnd(~w~0, 2139095040) / 8388608 - 127; VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=255, ~signbit~0=0, ~w~0=2147483647, ~x=0.0] [L21] COND FALSE !(~exponent_less_127~0 < 23) VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=255, ~signbit~0=0, ~w~0=2147483647, ~x=0.0] [L37] COND TRUE 255 == ~exponent_less_127~0 [L38] #res := ~someBinaryArithmeticFLOAToperation(~x, ~x); VAL [#in~x=0.0, #NULL!base=0, #NULL!offset=0, ~exponent_less_127~0=255, ~signbit~0=0, ~w~0=2147483647, ~x=0.0] [L63] RET call #t~ret8 := trunc_float(~x~0); VAL [#NULL!base=0, #NULL!offset=0, #t~ret8=6.442450944E9, ~x~0=0.0] [L63] ~res~0 := #t~ret8; [L63] havoc #t~ret8; [L66] #t~short10 := ~someBinaryFLOATComparisonOperation(~res~0, 0.0); VAL [#NULL!base=0, #NULL!offset=0, #t~short10=false, ~res~0=6.442450944E9, ~x~0=0.0] [L66] COND FALSE !(#t~short10) VAL [#NULL!base=0, #NULL!offset=0, #t~short10=false, ~res~0=6.442450944E9, ~x~0=0.0] [L66] COND TRUE !#t~short10 [L66] havoc #t~ret9; [L66] havoc #t~short10; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=6.442450944E9, ~x~0=0.0] [L67] assert false; VAL [#NULL!base=0, #NULL!offset=0, ~res~0=6.442450944E9, ~x~0=0.0] [L62] float x = 0.0f; VAL [x=0] [L63] CALL, EXPR trunc_float(x) VAL [\old(x)=0] [L13] __int32_t signbit, w, exponent_less_127; VAL [\old(x)=0, x=0] [L15] ieee_float_shape_type gf_u; [L16] gf_u.value = (x) [L17] EXPR gf_u.word [L17] (w) = gf_u.word [L19] signbit = w & 0x80000000 [L20] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=0, exponent_less_127=255, signbit=0, w=2147483647, x=0] [L21] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=0, exponent_less_127=255, signbit=0, w=2147483647, x=0] [L37] COND TRUE exponent_less_127 == 255 [L38] return x + x; VAL [\old(x)=0, exponent_less_127=255, signbit=0, w=2147483647, x=0] [L63] RET, EXPR trunc_float(x) VAL [trunc_float(x)=6442450944, x=0] [L63] float res = trunc_float(x); [L66] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [res=6442450944, res == 0.0f && __signbit_float(res) == 0=0, x=0] [L66] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L67] __VERIFIER_error() VAL [res=6442450944, x=0] ----- [2018-11-23 04:05:00,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:05:00 BoogieIcfgContainer [2018-11-23 04:05:00,311 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 04:05:00,312 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 04:05:00,312 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 04:05:00,312 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 04:05:00,313 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:04:59" (3/4) ... [2018-11-23 04:05:00,316 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 04:05:00,316 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 04:05:00,316 INFO L168 Benchmark]: Toolchain (without parser) took 834.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -102.0 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2018-11-23 04:05:00,317 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-11-23 04:05:00,318 INFO L168 Benchmark]: CACSL2BoogieTranslator took 186.36 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 945.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-23 04:05:00,318 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.04 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:05:00,318 INFO L168 Benchmark]: Boogie Preprocessor took 65.18 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -170.1 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-23 04:05:00,319 INFO L168 Benchmark]: RCFGBuilder took 223.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-11-23 04:05:00,319 INFO L168 Benchmark]: TraceAbstraction took 335.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. [2018-11-23 04:05:00,320 INFO L168 Benchmark]: Witness Printer took 4.00 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:05:00,322 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 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 186.36 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 945.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.04 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 65.18 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -170.1 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 223.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 335.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. * Witness Printer took 4.00 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 67]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 66, overapproximation of bitwiseAnd at line 19, overapproximation of someBinaryArithmeticFLOAToperation at line 38. Possible FailurePath: [L62] float x = 0.0f; VAL [x=0] [L63] CALL, EXPR trunc_float(x) VAL [\old(x)=0] [L13] __int32_t signbit, w, exponent_less_127; VAL [\old(x)=0, x=0] [L15] ieee_float_shape_type gf_u; [L16] gf_u.value = (x) [L17] EXPR gf_u.word [L17] (w) = gf_u.word [L19] signbit = w & 0x80000000 [L20] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=0, exponent_less_127=255, signbit=0, w=2147483647, x=0] [L21] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=0, exponent_less_127=255, signbit=0, w=2147483647, x=0] [L37] COND TRUE exponent_less_127 == 255 [L38] return x + x; VAL [\old(x)=0, exponent_less_127=255, signbit=0, w=2147483647, x=0] [L63] RET, EXPR trunc_float(x) VAL [trunc_float(x)=6442450944, x=0] [L63] float res = trunc_float(x); [L66] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [res=6442450944, res == 0.0f && __signbit_float(res) == 0=0, x=0] [L66] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L67] __VERIFIER_error() VAL [res=6442450944, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 41 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-aa41828 [2018-11-23 04:05:01,909 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 04:05:01,911 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 04:05:01,919 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 04:05:01,920 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 04:05:01,920 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 04:05:01,921 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 04:05:01,922 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 04:05:01,924 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 04:05:01,924 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 04:05:01,925 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 04:05:01,925 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 04:05:01,926 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 04:05:01,926 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 04:05:01,927 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 04:05:01,928 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 04:05:01,928 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 04:05:01,929 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 04:05:01,931 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 04:05:01,932 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 04:05:01,933 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 04:05:01,933 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 04:05:01,935 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 04:05:01,935 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 04:05:01,935 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 04:05:01,936 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 04:05:01,937 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 04:05:01,937 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 04:05:01,938 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 04:05:01,939 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 04:05:01,939 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 04:05:01,939 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 04:05:01,939 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 04:05:01,940 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 04:05:01,940 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 04:05:01,941 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 04:05:01,941 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d24e50d4-68ac-43a8-b769-604308ae2fad/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-23 04:05:01,951 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 04:05:01,952 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 04:05:01,952 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 04:05:01,952 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 04:05:01,952 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 04:05:01,953 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 04:05:01,953 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 04:05:01,953 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 04:05:01,953 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 04:05:01,953 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 04:05:01,954 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 04:05:01,954 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 04:05:01,954 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 04:05:01,954 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 04:05:01,954 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 04:05:01,955 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 04:05:01,955 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 04:05:01,955 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 04:05:01,955 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 04:05:01,955 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 04:05:01,955 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 04:05:01,955 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 04:05:01,955 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 04:05:01,956 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 04:05:01,956 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 04:05:01,956 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 04:05:01,956 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 04:05:01,956 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 04:05:01,956 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 04:05:01,956 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 04:05:01,957 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 04:05:01,957 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-23 04:05:01,957 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 04:05:01,957 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 04:05:01,957 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 04:05:01,957 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_d24e50d4-68ac-43a8-b769-604308ae2fad/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 -> 8c9432e09ab34163f77fe447dc3730a7acfb00e3 [2018-11-23 04:05:01,989 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 04:05:01,999 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 04:05:02,002 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 04:05:02,003 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 04:05:02,003 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 04:05:02,004 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d24e50d4-68ac-43a8-b769-604308ae2fad/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1072c_true-unreach-call.c [2018-11-23 04:05:02,049 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d24e50d4-68ac-43a8-b769-604308ae2fad/bin-2019/utaipan/data/0650e4b98/2c6cbe8f1b15425ea7413470b78b3423/FLAGe247a5b0b [2018-11-23 04:05:02,360 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 04:05:02,361 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d24e50d4-68ac-43a8-b769-604308ae2fad/sv-benchmarks/c/float-newlib/float_req_bl_1072c_true-unreach-call.c [2018-11-23 04:05:02,365 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d24e50d4-68ac-43a8-b769-604308ae2fad/bin-2019/utaipan/data/0650e4b98/2c6cbe8f1b15425ea7413470b78b3423/FLAGe247a5b0b [2018-11-23 04:05:02,374 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d24e50d4-68ac-43a8-b769-604308ae2fad/bin-2019/utaipan/data/0650e4b98/2c6cbe8f1b15425ea7413470b78b3423 [2018-11-23 04:05:02,376 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 04:05:02,377 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 04:05:02,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 04:05:02,378 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 04:05:02,382 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 04:05:02,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:05:02" (1/1) ... [2018-11-23 04:05:02,385 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36936f7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:02, skipping insertion in model container [2018-11-23 04:05:02,385 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:05:02" (1/1) ... [2018-11-23 04:05:02,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 04:05:02,412 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 04:05:02,538 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:05:02,543 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 04:05:02,562 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:05:02,577 INFO L195 MainTranslator]: Completed translation [2018-11-23 04:05:02,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:02 WrapperNode [2018-11-23 04:05:02,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 04:05:02,578 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 04:05:02,578 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 04:05:02,578 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 04:05:02,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:02" (1/1) ... [2018-11-23 04:05:02,589 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:02" (1/1) ... [2018-11-23 04:05:02,594 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 04:05:02,594 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 04:05:02,594 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 04:05:02,594 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 04:05:02,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:02" (1/1) ... [2018-11-23 04:05:02,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:02" (1/1) ... [2018-11-23 04:05:02,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:02" (1/1) ... [2018-11-23 04:05:02,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:02" (1/1) ... [2018-11-23 04:05:02,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:02" (1/1) ... [2018-11-23 04:05:02,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:02" (1/1) ... [2018-11-23 04:05:02,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:02" (1/1) ... [2018-11-23 04:05:02,617 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 04:05:02,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 04:05:02,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 04:05:02,618 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 04:05:02,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d24e50d4-68ac-43a8-b769-604308ae2fad/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 [2018-11-23 04:05:02,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 04:05:02,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 04:05:02,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 04:05:02,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-23 04:05:02,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 04:05:02,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 04:05:02,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-23 04:05:02,710 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 04:05:02,711 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 04:05:02,711 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-11-23 04:05:02,711 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-11-23 04:05:02,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-23 04:05:02,711 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-23 04:05:02,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-23 04:05:02,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-23 04:05:02,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 04:05:02,953 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 04:05:02,980 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 04:05:02,981 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-11-23 04:05:02,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:05:02 BoogieIcfgContainer [2018-11-23 04:05:02,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 04:05:02,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 04:05:02,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 04:05:02,984 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 04:05:02,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:05:02" (1/3) ... [2018-11-23 04:05:02,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b3a6db1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:05:02, skipping insertion in model container [2018-11-23 04:05:02,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:05:02" (2/3) ... [2018-11-23 04:05:02,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b3a6db1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:05:02, skipping insertion in model container [2018-11-23 04:05:02,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:05:02" (3/3) ... [2018-11-23 04:05:02,987 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072c_true-unreach-call.c [2018-11-23 04:05:02,995 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 04:05:03,000 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 04:05:03,011 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 04:05:03,032 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 04:05:03,032 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 04:05:03,032 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 04:05:03,032 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 04:05:03,033 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 04:05:03,033 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 04:05:03,033 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 04:05:03,033 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 04:05:03,033 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 04:05:03,048 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-11-23 04:05:03,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-23 04:05:03,053 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:05:03,054 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:05:03,056 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:05:03,059 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:05:03,060 INFO L82 PathProgramCache]: Analyzing trace with hash 753691903, now seen corresponding path program 1 times [2018-11-23 04:05:03,063 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 04:05:03,063 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d24e50d4-68ac-43a8-b769-604308ae2fad/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 [2018-11-23 04:05:03,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:05:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:05:03,127 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:05:03,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:05:03,141 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 04:05:03,151 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:05:03,151 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 04:05:03,154 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 04:05:03,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 04:05:03,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 04:05:03,165 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2018-11-23 04:05:03,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:05:03,183 INFO L93 Difference]: Finished difference Result 68 states and 93 transitions. [2018-11-23 04:05:03,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 04:05:03,184 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-23 04:05:03,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:05:03,192 INFO L225 Difference]: With dead ends: 68 [2018-11-23 04:05:03,193 INFO L226 Difference]: Without dead ends: 34 [2018-11-23 04:05:03,196 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 04:05:03,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-23 04:05:03,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-23 04:05:03,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-23 04:05:03,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-11-23 04:05:03,224 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 18 [2018-11-23 04:05:03,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:05:03,224 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-11-23 04:05:03,224 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 04:05:03,224 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-11-23 04:05:03,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-23 04:05:03,224 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:05:03,225 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:05:03,225 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:05:03,225 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:05:03,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1111015325, now seen corresponding path program 1 times [2018-11-23 04:05:03,226 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 04:05:03,226 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d24e50d4-68ac-43a8-b769-604308ae2fad/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-23 04:05:03,231 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:05:03,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:05:03,277 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:05:03,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:05:03,423 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 04:05:03,431 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:05:03,431 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 04:05:03,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 04:05:03,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 04:05:03,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 04:05:03,433 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 7 states. [2018-11-23 04:05:03,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:05:03,729 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-11-23 04:05:03,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 04:05:03,731 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-11-23 04:05:03,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:05:03,732 INFO L225 Difference]: With dead ends: 52 [2018-11-23 04:05:03,732 INFO L226 Difference]: Without dead ends: 33 [2018-11-23 04:05:03,733 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-23 04:05:03,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-23 04:05:03,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-23 04:05:03,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-23 04:05:03,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2018-11-23 04:05:03,739 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 19 [2018-11-23 04:05:03,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:05:03,739 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2018-11-23 04:05:03,739 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 04:05:03,740 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2018-11-23 04:05:03,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-23 04:05:03,740 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:05:03,740 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:05:03,741 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:05:03,741 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:05:03,741 INFO L82 PathProgramCache]: Analyzing trace with hash -2096519695, now seen corresponding path program 1 times [2018-11-23 04:05:03,741 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 04:05:03,742 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d24e50d4-68ac-43a8-b769-604308ae2fad/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-23 04:05:03,745 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:05:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:05:03,774 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:05:03,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:05:03,867 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 04:05:03,880 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:05:03,880 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 04:05:03,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 04:05:03,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 04:05:03,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 04:05:03,881 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 7 states. [2018-11-23 04:05:04,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:05:04,189 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2018-11-23 04:05:04,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 04:05:04,190 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-11-23 04:05:04,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:05:04,191 INFO L225 Difference]: With dead ends: 49 [2018-11-23 04:05:04,191 INFO L226 Difference]: Without dead ends: 31 [2018-11-23 04:05:04,192 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-11-23 04:05:04,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-23 04:05:04,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-11-23 04:05:04,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-23 04:05:04,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2018-11-23 04:05:04,196 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 22 [2018-11-23 04:05:04,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:05:04,196 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2018-11-23 04:05:04,196 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 04:05:04,196 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2018-11-23 04:05:04,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-23 04:05:04,197 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:05:04,197 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:05:04,197 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:05:04,198 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:05:04,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1559687167, now seen corresponding path program 1 times [2018-11-23 04:05:04,198 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 04:05:04,198 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d24e50d4-68ac-43a8-b769-604308ae2fad/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-23 04:05:04,202 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:05:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:05:04,246 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:05:04,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:05:04,334 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 04:05:04,342 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:05:04,342 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 04:05:04,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 04:05:04,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 04:05:04,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 04:05:04,343 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 7 states. [2018-11-23 04:05:04,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:05:04,430 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2018-11-23 04:05:04,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 04:05:04,430 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-11-23 04:05:04,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:05:04,431 INFO L225 Difference]: With dead ends: 34 [2018-11-23 04:05:04,431 INFO L226 Difference]: Without dead ends: 31 [2018-11-23 04:05:04,432 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-23 04:05:04,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-23 04:05:04,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-11-23 04:05:04,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-23 04:05:04,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 30 transitions. [2018-11-23 04:05:04,436 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 30 transitions. Word has length 22 [2018-11-23 04:05:04,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:05:04,436 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 30 transitions. [2018-11-23 04:05:04,437 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 04:05:04,437 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 30 transitions. [2018-11-23 04:05:04,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-23 04:05:04,437 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:05:04,437 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:05:04,438 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:05:04,438 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:05:04,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1781626003, now seen corresponding path program 1 times [2018-11-23 04:05:04,438 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 04:05:04,438 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d24e50d4-68ac-43a8-b769-604308ae2fad/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-23 04:05:04,441 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:05:04,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:05:04,488 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:05:04,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:05:04,821 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 04:05:04,828 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:05:04,828 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-11-23 04:05:04,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-23 04:05:04,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-23 04:05:04,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2018-11-23 04:05:04,829 INFO L87 Difference]: Start difference. First operand 31 states and 30 transitions. Second operand 15 states. [2018-11-23 04:05:05,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:05:05,381 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2018-11-23 04:05:05,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-23 04:05:05,382 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 30 [2018-11-23 04:05:05,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:05:05,382 INFO L225 Difference]: With dead ends: 31 [2018-11-23 04:05:05,382 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 04:05:05,383 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=75, Invalid=477, Unknown=0, NotChecked=0, Total=552 [2018-11-23 04:05:05,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 04:05:05,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 04:05:05,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 04:05:05,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 04:05:05,384 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2018-11-23 04:05:05,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:05:05,384 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 04:05:05,384 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-23 04:05:05,384 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 04:05:05,384 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 04:05:05,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 04:05:05,521 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 04:05:05,522 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-23 04:05:05,522 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 04:05:05,522 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 04:05:05,522 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 04:05:05,522 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 04:05:05,522 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 04:05:05,522 INFO L444 ceAbstractionStarter]: At program point L66-1(line 66) the Hoare annotation is: (and (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (_ +zero 8 24) (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0))) (= main_~res~0 (let ((.cse0 (bvand (_ bv2147483648 32) trunc_float_~w~0))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))))) (= (_ +zero 8 24) main_~x~0) |main_#t~short10|) [2018-11-23 04:05:05,522 INFO L448 ceAbstractionStarter]: For program point L66-2(line 66) no Hoare annotation was computed. [2018-11-23 04:05:05,522 INFO L444 ceAbstractionStarter]: At program point L63(line 63) the Hoare annotation is: (= (_ +zero 8 24) main_~x~0) [2018-11-23 04:05:05,523 INFO L448 ceAbstractionStarter]: For program point L63-1(line 63) no Hoare annotation was computed. [2018-11-23 04:05:05,523 INFO L448 ceAbstractionStarter]: For program point L66-4(lines 66 69) no Hoare annotation was computed. [2018-11-23 04:05:05,523 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 55 72) the Hoare annotation is: true [2018-11-23 04:05:05,523 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 55 72) no Hoare annotation was computed. [2018-11-23 04:05:05,523 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 67) no Hoare annotation was computed. [2018-11-23 04:05:05,523 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 55 72) no Hoare annotation was computed. [2018-11-23 04:05:05,523 INFO L448 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-11-23 04:05:05,524 INFO L448 ceAbstractionStarter]: For program point L66(line 66) no Hoare annotation was computed. [2018-11-23 04:05:05,524 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 39) no Hoare annotation was computed. [2018-11-23 04:05:05,524 INFO L448 ceAbstractionStarter]: For program point L21-1(lines 21 39) no Hoare annotation was computed. [2018-11-23 04:05:05,524 INFO L451 ceAbstractionStarter]: At program point trunc_floatENTRY(lines 12 41) the Hoare annotation is: true [2018-11-23 04:05:05,524 INFO L448 ceAbstractionStarter]: For program point trunc_floatEXIT(lines 12 41) no Hoare annotation was computed. [2018-11-23 04:05:05,524 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 30 34) no Hoare annotation was computed. [2018-11-23 04:05:05,524 INFO L444 ceAbstractionStarter]: At program point L30-2(lines 30 34) the Hoare annotation is: (and (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (not (bvslt (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv0 32))) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|))) (= trunc_float_~x |trunc_float_#in~x|) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (= (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) trunc_float_~exponent_less_127~0))) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|)) [2018-11-23 04:05:05,525 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2018-11-23 04:05:05,525 INFO L448 ceAbstractionStarter]: For program point trunc_floatFINAL(lines 12 41) no Hoare annotation was computed. [2018-11-23 04:05:05,525 INFO L448 ceAbstractionStarter]: For program point L22(lines 22 35) no Hoare annotation was computed. [2018-11-23 04:05:05,525 INFO L444 ceAbstractionStarter]: At program point L24-2(lines 24 28) the Hoare annotation is: (and (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (bvand (_ bv2147483648 32) trunc_float_~w~0) trunc_float_~signbit~0) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|))) (= trunc_float_~x |trunc_float_#in~x|) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (= (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) trunc_float_~exponent_less_127~0))) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|)) [2018-11-23 04:05:05,525 INFO L448 ceAbstractionStarter]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2018-11-23 04:05:05,525 INFO L444 ceAbstractionStarter]: At program point L14-2(lines 14 18) the Hoare annotation is: (= trunc_float_~x |trunc_float_#in~x|) [2018-11-23 04:05:05,525 INFO L448 ceAbstractionStarter]: For program point L14-3(lines 14 18) no Hoare annotation was computed. [2018-11-23 04:05:05,526 INFO L448 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-11-23 04:05:05,526 INFO L448 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 43 53) no Hoare annotation was computed. [2018-11-23 04:05:05,526 INFO L451 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 43 53) the Hoare annotation is: true [2018-11-23 04:05:05,526 INFO L448 ceAbstractionStarter]: For program point L46-1(lines 46 50) no Hoare annotation was computed. [2018-11-23 04:05:05,526 INFO L444 ceAbstractionStarter]: At program point L46-2(lines 46 50) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-11-23 04:05:05,526 INFO L448 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 43 53) no Hoare annotation was computed. [2018-11-23 04:05:05,526 INFO L448 ceAbstractionStarter]: For program point L46-3(lines 46 50) no Hoare annotation was computed. [2018-11-23 04:05:05,530 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,531 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,531 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,532 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,532 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,532 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,532 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,533 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,538 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,539 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,539 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,539 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,539 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,539 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,539 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,539 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,541 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,541 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,541 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,541 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,541 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,541 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,542 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,542 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,542 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,542 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,543 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,543 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,543 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,543 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,543 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,544 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:05:05 BoogieIcfgContainer [2018-11-23 04:05:05,546 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 04:05:05,546 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 04:05:05,546 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 04:05:05,546 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 04:05:05,547 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:05:02" (3/4) ... [2018-11-23 04:05:05,550 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 04:05:05,554 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 04:05:05,554 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 04:05:05,555 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure trunc_float [2018-11-23 04:05:05,555 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-11-23 04:05:05,558 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-11-23 04:05:05,559 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-23 04:05:05,559 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 04:05:05,576 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-23 04:05:05,577 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-23 04:05:05,577 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists trunc_float_~w~0 : bv32 :: ~bvand32(2147483648bv32, trunc_float_~w~0) == signbit && ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x)) && x == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) [2018-11-23 04:05:05,577 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists trunc_float_~w~0 : bv32 :: !~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 0bv32) && ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x)) && x == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) [2018-11-23 04:05:05,593 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_d24e50d4-68ac-43a8-b769-604308ae2fad/bin-2019/utaipan/witness.graphml [2018-11-23 04:05:05,593 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 04:05:05,594 INFO L168 Benchmark]: Toolchain (without parser) took 3216.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 948.7 MB in the beginning and 905.0 MB in the end (delta: 43.7 MB). Peak memory consumption was 209.4 MB. Max. memory is 11.5 GB. [2018-11-23 04:05:05,595 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. [2018-11-23 04:05:05,595 INFO L168 Benchmark]: CACSL2BoogieTranslator took 199.38 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 932.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-23 04:05:05,595 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.03 ms. Allocated memory is still 1.0 GB. Free memory is still 932.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:05:05,596 INFO L168 Benchmark]: Boogie Preprocessor took 23.13 ms. Allocated memory is still 1.0 GB. Free memory is still 932.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:05:05,596 INFO L168 Benchmark]: RCFGBuilder took 363.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 932.5 MB in the beginning and 1.1 GB in the end (delta: -201.4 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2018-11-23 04:05:05,596 INFO L168 Benchmark]: TraceAbstraction took 2564.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 911.9 MB in the end (delta: 222.1 MB). Peak memory consumption was 222.1 MB. Max. memory is 11.5 GB. [2018-11-23 04:05:05,597 INFO L168 Benchmark]: Witness Printer took 46.82 ms. Allocated memory is still 1.2 GB. Free memory was 911.9 MB in the beginning and 905.0 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-11-23 04:05:05,599 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 199.38 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 932.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.03 ms. Allocated memory is still 1.0 GB. Free memory is still 932.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.13 ms. Allocated memory is still 1.0 GB. Free memory is still 932.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 363.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.7 MB). Free memory was 932.5 MB in the beginning and 1.1 GB in the end (delta: -201.4 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2564.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 911.9 MB in the end (delta: 222.1 MB). Peak memory consumption was 222.1 MB. Max. memory is 11.5 GB. * Witness Printer took 46.82 ms. Allocated memory is still 1.2 GB. Free memory was 911.9 MB in the beginning and 905.0 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 67]: 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 - InvariantResult [Line: 24]: Loop Invariant [2018-11-23 04:05:05,604 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,604 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,604 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,604 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,604 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,604 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,604 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,605 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,605 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,605 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,606 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,606 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,606 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,606 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,606 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,606 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] Derived loop invariant: (((\exists trunc_float_~w~0 : bv32 :: ~bvand32(2147483648bv32, trunc_float_~w~0) == signbit && ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x)) && x == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 30]: Loop Invariant [2018-11-23 04:05:05,607 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,607 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,608 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,608 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,608 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,609 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,609 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,609 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,610 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,610 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,610 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,610 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,611 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,611 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,611 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-23 04:05:05,611 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] Derived loop invariant: (((\exists trunc_float_~w~0 : bv32 :: !~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 0bv32) && ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x)) && x == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. SAFE Result, 2.5s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 137 SDtfs, 106 SDslu, 507 SDs, 0 SdLazy, 229 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 18 PreInvPairs, 23 NumberOfFragments, 149 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 106 ConstructedInterpolants, 31 QuantifiedInterpolants, 19360 SizeOfPredicates, 21 NumberOfNonLiveVariables, 284 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...