./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1072a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_368917bd-5841-4d27-a006-12181932d52f/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_368917bd-5841-4d27-a006-12181932d52f/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_368917bd-5841-4d27-a006-12181932d52f/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_368917bd-5841-4d27-a006-12181932d52f/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1072a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_368917bd-5841-4d27-a006-12181932d52f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_368917bd-5841-4d27-a006-12181932d52f/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 61816a63e70562669051a12493c2c5215c575cb7 ............................................................................................................................................................................................................................................................................................................................. 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_368917bd-5841-4d27-a006-12181932d52f/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_368917bd-5841-4d27-a006-12181932d52f/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_368917bd-5841-4d27-a006-12181932d52f/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_368917bd-5841-4d27-a006-12181932d52f/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1072a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_368917bd-5841-4d27-a006-12181932d52f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_368917bd-5841-4d27-a006-12181932d52f/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 61816a63e70562669051a12493c2c5215c575cb7 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 04:01:27,804 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 04:01:27,805 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 04:01:27,813 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 04:01:27,813 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 04:01:27,814 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 04:01:27,814 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 04:01:27,815 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 04:01:27,816 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 04:01:27,816 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 04:01:27,816 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 04:01:27,817 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 04:01:27,817 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 04:01:27,818 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 04:01:27,818 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 04:01:27,818 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 04:01:27,819 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 04:01:27,820 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 04:01:27,820 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 04:01:27,821 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 04:01:27,822 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 04:01:27,823 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 04:01:27,824 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 04:01:27,824 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 04:01:27,825 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 04:01:27,825 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 04:01:27,825 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 04:01:27,826 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 04:01:27,826 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 04:01:27,827 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 04:01:27,827 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 04:01:27,828 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 04:01:27,828 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 04:01:27,828 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 04:01:27,829 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 04:01:27,829 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 04:01:27,829 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_368917bd-5841-4d27-a006-12181932d52f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 04:01:27,837 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 04:01:27,837 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 04:01:27,838 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 04:01:27,838 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 04:01:27,838 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 04:01:27,838 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 04:01:27,838 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 04:01:27,839 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 04:01:27,839 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 04:01:27,839 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 04:01:27,839 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 04:01:27,839 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 04:01:27,839 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 04:01:27,840 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 04:01:27,840 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 04:01:27,840 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 04:01:27,840 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 04:01:27,840 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 04:01:27,841 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 04:01:27,841 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 04:01:27,841 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 04:01:27,841 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 04:01:27,841 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 04:01:27,841 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 04:01:27,842 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 04:01:27,842 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 04:01:27,842 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 04:01:27,842 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 04:01:27,842 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 04:01:27,842 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 04:01:27,843 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 04:01:27,843 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 04:01:27,843 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 04:01:27,843 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 04:01:27,843 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 04:01:27,843 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 04:01:27,843 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_368917bd-5841-4d27-a006-12181932d52f/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 -> 61816a63e70562669051a12493c2c5215c575cb7 [2018-12-02 04:01:27,862 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 04:01:27,869 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 04:01:27,872 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 04:01:27,873 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 04:01:27,873 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 04:01:27,873 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_368917bd-5841-4d27-a006-12181932d52f/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1072a_true-unreach-call.c [2018-12-02 04:01:27,910 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_368917bd-5841-4d27-a006-12181932d52f/bin-2019/utaipan/data/f19837aa5/fba5f5f6ec9c474a92228858d973bd8b/FLAG87441cac9 [2018-12-02 04:01:28,298 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 04:01:28,299 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_368917bd-5841-4d27-a006-12181932d52f/sv-benchmarks/c/float-newlib/float_req_bl_1072a_true-unreach-call.c [2018-12-02 04:01:28,302 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_368917bd-5841-4d27-a006-12181932d52f/bin-2019/utaipan/data/f19837aa5/fba5f5f6ec9c474a92228858d973bd8b/FLAG87441cac9 [2018-12-02 04:01:28,311 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_368917bd-5841-4d27-a006-12181932d52f/bin-2019/utaipan/data/f19837aa5/fba5f5f6ec9c474a92228858d973bd8b [2018-12-02 04:01:28,313 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 04:01:28,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 04:01:28,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 04:01:28,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 04:01:28,318 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 04:01:28,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:01:28" (1/1) ... [2018-12-02 04:01:28,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@706fcb08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:01:28, skipping insertion in model container [2018-12-02 04:01:28,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:01:28" (1/1) ... [2018-12-02 04:01:28,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 04:01:28,340 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 04:01:28,441 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 04:01:28,443 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 04:01:28,457 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 04:01:28,469 INFO L195 MainTranslator]: Completed translation [2018-12-02 04:01:28,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:01:28 WrapperNode [2018-12-02 04:01:28,469 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 04:01:28,470 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 04:01:28,470 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 04:01:28,470 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 04:01:28,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:01:28" (1/1) ... [2018-12-02 04:01:28,480 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:01:28" (1/1) ... [2018-12-02 04:01:28,484 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 04:01:28,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 04:01:28,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 04:01:28,484 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 04:01:28,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:01:28" (1/1) ... [2018-12-02 04:01:28,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:01:28" (1/1) ... [2018-12-02 04:01:28,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:01:28" (1/1) ... [2018-12-02 04:01:28,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:01:28" (1/1) ... [2018-12-02 04:01:28,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:01:28" (1/1) ... [2018-12-02 04:01:28,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:01:28" (1/1) ... [2018-12-02 04:01:28,531 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:01:28" (1/1) ... [2018-12-02 04:01:28,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 04:01:28,533 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 04:01:28,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 04:01:28,533 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 04:01:28,533 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:01:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_368917bd-5841-4d27-a006-12181932d52f/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 04:01:28,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-02 04:01:28,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 04:01:28,564 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-12-02 04:01:28,564 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-12-02 04:01:28,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 04:01:28,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 04:01:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-02 04:01:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 04:01:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 04:01:28,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 04:01:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 04:01:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 04:01:28,565 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 04:01:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-12-02 04:01:28,565 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-12-02 04:01:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 04:01:28,702 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 04:01:28,703 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-02 04:01:28,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:01:28 BoogieIcfgContainer [2018-12-02 04:01:28,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 04:01:28,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 04:01:28,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 04:01:28,705 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 04:01:28,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:01:28" (1/3) ... [2018-12-02 04:01:28,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4addbe04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:01:28, skipping insertion in model container [2018-12-02 04:01:28,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:01:28" (2/3) ... [2018-12-02 04:01:28,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4addbe04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:01:28, skipping insertion in model container [2018-12-02 04:01:28,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:01:28" (3/3) ... [2018-12-02 04:01:28,707 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072a_true-unreach-call.c [2018-12-02 04:01:28,712 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 04:01:28,716 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 04:01:28,725 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 04:01:28,743 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 04:01:28,743 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 04:01:28,744 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 04:01:28,744 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 04:01:28,744 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 04:01:28,744 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 04:01:28,744 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 04:01:28,744 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 04:01:28,753 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-12-02 04:01:28,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-02 04:01:28,757 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:01:28,757 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 04:01:28,758 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 04:01:28,761 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:01:28,761 INFO L82 PathProgramCache]: Analyzing trace with hash -456969478, now seen corresponding path program 1 times [2018-12-02 04:01:28,763 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 04:01:28,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:01:28,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:01:28,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:01:28,790 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 04:01:28,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:01:28,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:01:28,836 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 04:01:28,837 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 04:01:28,837 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 04:01:28,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 04:01:28,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 04:01:28,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 04:01:28,849 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2018-12-02 04:01:28,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:01:28,862 INFO L93 Difference]: Finished difference Result 66 states and 89 transitions. [2018-12-02 04:01:28,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 04:01:28,863 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-12-02 04:01:28,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:01:28,867 INFO L225 Difference]: With dead ends: 66 [2018-12-02 04:01:28,867 INFO L226 Difference]: Without dead ends: 33 [2018-12-02 04:01:28,869 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 [2018-12-02 04:01:28,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-12-02 04:01:28,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-12-02 04:01:28,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-12-02 04:01:28,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2018-12-02 04:01:28,891 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 24 [2018-12-02 04:01:28,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:01:28,891 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2018-12-02 04:01:28,891 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 04:01:28,891 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2018-12-02 04:01:28,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-02 04:01:28,892 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:01:28,892 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] [2018-12-02 04:01:28,892 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 04:01:28,892 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:01:28,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1810155496, now seen corresponding path program 1 times [2018-12-02 04:01:28,892 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 04:01:28,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:01:28,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:01:28,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 04:01:28,893 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 04:01:28,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 04:01:28,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 04:01:28,955 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 04:01:28,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:01:28 BoogieIcfgContainer [2018-12-02 04:01:28,972 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 04:01:28,972 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 04:01:28,972 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 04:01:28,972 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 04:01:28,972 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:01:28" (3/4) ... [2018-12-02 04:01:28,974 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 04:01:28,975 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 04:01:28,975 INFO L168 Benchmark]: Toolchain (without parser) took 661.28 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -100.0 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. [2018-12-02 04:01:28,976 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 04:01:28,976 INFO L168 Benchmark]: CACSL2BoogieTranslator took 154.45 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 04:01:28,977 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.15 ms. Allocated memory is still 1.0 GB. Free memory was 940.0 MB in the beginning and 937.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-02 04:01:28,977 INFO L168 Benchmark]: Boogie Preprocessor took 48.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 937.3 MB in the beginning and 1.1 GB in the end (delta: -170.7 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-12-02 04:01:28,977 INFO L168 Benchmark]: RCFGBuilder took 170.56 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. [2018-12-02 04:01:28,978 INFO L168 Benchmark]: TraceAbstraction took 268.28 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: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-12-02 04:01:28,978 INFO L168 Benchmark]: Witness Printer took 2.70 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 04:01:28,980 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 154.45 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.15 ms. Allocated memory is still 1.0 GB. Free memory was 940.0 MB in the beginning and 937.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 937.3 MB in the beginning and 1.1 GB in the end (delta: -170.7 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 170.56 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 268.28 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: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.70 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 someBinaryArithmeticFLOAToperation at line 38, overapproximation of bitwiseAnd at line 51. Possible FailurePath: [L62] float x = 1.0f / 0.0f; [L63] CALL, EXPR trunc_float(x) VAL [\old(x)=6442450951] [L13] __int32_t signbit, w, exponent_less_127; VAL [\old(x)=6442450951, x=6442450951] [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)=6442450951, exponent_less_127=255, signbit=0, w=3, x=6442450951] [L21] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=6442450951, exponent_less_127=255, signbit=0, w=3, x=6442450951] [L37] COND TRUE exponent_less_127 == 255 [L38] return x + x; VAL [\old(x)=6442450951, exponent_less_127=255, signbit=0, w=3, x=6442450951] [L63] RET, EXPR trunc_float(x) VAL [trunc_float(x)=6442450945, x=6442450951] [L63] float res = trunc_float(x); [L66] CALL, EXPR isinf_float(res) VAL [\old(x)=6442450945] [L45] __int32_t ix; VAL [\old(x)=6442450945, x=6442450945] [L47] ieee_float_shape_type gf_u; [L48] gf_u.value = (x) [L49] EXPR gf_u.word [L49] (ix) = gf_u.word [L51] ix &= 0x7fffffff [L52] return ((ix) == 0x7f800000L); VAL [\old(x)=6442450945, \result=0, ix=0, x=6442450945] [L66] RET, EXPR isinf_float(res) VAL [isinf_float(res)=0, res=6442450945, x=6442450951] [L66] COND TRUE !isinf_float(res) [L67] __VERIFIER_error() VAL [res=6442450945, x=6442450951] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 37 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 39 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=37occurred 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, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 529 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 0.1.23-635dfa2 [2018-12-02 04:01:30,333 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 04:01:30,334 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 04:01:30,341 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 04:01:30,341 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 04:01:30,342 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 04:01:30,343 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 04:01:30,344 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 04:01:30,345 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 04:01:30,345 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 04:01:30,346 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 04:01:30,346 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 04:01:30,347 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 04:01:30,347 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 04:01:30,348 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 04:01:30,349 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 04:01:30,349 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 04:01:30,350 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 04:01:30,352 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 04:01:30,353 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 04:01:30,353 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 04:01:30,354 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 04:01:30,356 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 04:01:30,356 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 04:01:30,356 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 04:01:30,357 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 04:01:30,357 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 04:01:30,358 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 04:01:30,359 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 04:01:30,359 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 04:01:30,359 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 04:01:30,360 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 04:01:30,360 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 04:01:30,360 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 04:01:30,361 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 04:01:30,361 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 04:01:30,361 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_368917bd-5841-4d27-a006-12181932d52f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-02 04:01:30,372 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 04:01:30,372 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 04:01:30,372 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 04:01:30,373 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 04:01:30,373 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 04:01:30,373 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 04:01:30,373 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 04:01:30,373 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 04:01:30,373 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 04:01:30,373 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 04:01:30,374 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 04:01:30,374 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 04:01:30,374 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 04:01:30,374 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 04:01:30,374 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 04:01:30,374 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 04:01:30,374 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 04:01:30,374 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-02 04:01:30,375 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-02 04:01:30,375 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 04:01:30,375 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 04:01:30,375 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 04:01:30,375 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 04:01:30,375 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 04:01:30,375 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 04:01:30,375 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 04:01:30,375 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 04:01:30,375 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 04:01:30,376 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 04:01:30,376 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 04:01:30,376 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 04:01:30,376 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-02 04:01:30,376 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 04:01:30,376 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-02 04:01:30,376 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-02 04:01:30,376 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_368917bd-5841-4d27-a006-12181932d52f/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 -> 61816a63e70562669051a12493c2c5215c575cb7 [2018-12-02 04:01:30,400 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 04:01:30,409 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 04:01:30,412 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 04:01:30,413 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 04:01:30,414 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 04:01:30,414 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_368917bd-5841-4d27-a006-12181932d52f/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1072a_true-unreach-call.c [2018-12-02 04:01:30,451 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_368917bd-5841-4d27-a006-12181932d52f/bin-2019/utaipan/data/28acd472d/c1a82060338a4961acd168db629e8223/FLAGe6e2bb9e0 [2018-12-02 04:01:30,831 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 04:01:30,831 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_368917bd-5841-4d27-a006-12181932d52f/sv-benchmarks/c/float-newlib/float_req_bl_1072a_true-unreach-call.c [2018-12-02 04:01:30,835 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_368917bd-5841-4d27-a006-12181932d52f/bin-2019/utaipan/data/28acd472d/c1a82060338a4961acd168db629e8223/FLAGe6e2bb9e0 [2018-12-02 04:01:30,843 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_368917bd-5841-4d27-a006-12181932d52f/bin-2019/utaipan/data/28acd472d/c1a82060338a4961acd168db629e8223 [2018-12-02 04:01:30,845 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 04:01:30,845 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 04:01:30,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 04:01:30,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 04:01:30,848 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 04:01:30,848 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:01:30" (1/1) ... [2018-12-02 04:01:30,850 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c437c03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:01:30, skipping insertion in model container [2018-12-02 04:01:30,850 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:01:30" (1/1) ... [2018-12-02 04:01:30,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 04:01:30,868 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 04:01:30,973 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 04:01:30,976 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 04:01:30,994 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 04:01:31,011 INFO L195 MainTranslator]: Completed translation [2018-12-02 04:01:31,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:01:31 WrapperNode [2018-12-02 04:01:31,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 04:01:31,012 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 04:01:31,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 04:01:31,012 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 04:01:31,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:01:31" (1/1) ... [2018-12-02 04:01:31,023 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:01:31" (1/1) ... [2018-12-02 04:01:31,027 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 04:01:31,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 04:01:31,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 04:01:31,028 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 04:01:31,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:01:31" (1/1) ... [2018-12-02 04:01:31,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:01:31" (1/1) ... [2018-12-02 04:01:31,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:01:31" (1/1) ... [2018-12-02 04:01:31,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:01:31" (1/1) ... [2018-12-02 04:01:31,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:01:31" (1/1) ... [2018-12-02 04:01:31,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:01:31" (1/1) ... [2018-12-02 04:01:31,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:01:31" (1/1) ... [2018-12-02 04:01:31,049 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 04:01:31,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 04:01:31,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 04:01:31,050 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 04:01:31,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:01:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_368917bd-5841-4d27-a006-12181932d52f/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 04:01:31,112 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-12-02 04:01:31,113 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-12-02 04:01:31,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 04:01:31,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 04:01:31,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 04:01:31,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-02 04:01:31,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 04:01:31,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 04:01:31,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-02 04:01:31,113 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 04:01:31,113 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 04:01:31,113 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-12-02 04:01:31,114 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-12-02 04:01:31,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-02 04:01:31,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-02 04:01:31,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 04:01:31,195 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:01:31,230 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 04:01:31,268 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 04:01:31,268 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-02 04:01:31,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:01:31 BoogieIcfgContainer [2018-12-02 04:01:31,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 04:01:31,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 04:01:31,269 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 04:01:31,270 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 04:01:31,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:01:30" (1/3) ... [2018-12-02 04:01:31,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18812474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:01:31, skipping insertion in model container [2018-12-02 04:01:31,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:01:31" (2/3) ... [2018-12-02 04:01:31,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18812474 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:01:31, skipping insertion in model container [2018-12-02 04:01:31,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:01:31" (3/3) ... [2018-12-02 04:01:31,272 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072a_true-unreach-call.c [2018-12-02 04:01:31,278 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 04:01:31,282 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 04:01:31,292 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 04:01:31,309 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 04:01:31,309 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 04:01:31,309 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 04:01:31,309 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 04:01:31,309 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 04:01:31,309 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 04:01:31,310 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 04:01:31,310 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 04:01:31,310 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 04:01:31,319 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-12-02 04:01:31,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 04:01:31,322 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:01:31,323 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] [2018-12-02 04:01:31,324 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 04:01:31,327 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:01:31,327 INFO L82 PathProgramCache]: Analyzing trace with hash 503658527, now seen corresponding path program 1 times [2018-12-02 04:01:31,330 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 04:01:31,330 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_368917bd-5841-4d27-a006-12181932d52f/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-02 04:01:31,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:01:31,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:01:31,385 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 04:01:31,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:01:31,396 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 04:01:31,408 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 04:01:31,408 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 04:01:31,410 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 04:01:31,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 04:01:31,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 04:01:31,418 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2018-12-02 04:01:31,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:01:31,431 INFO L93 Difference]: Finished difference Result 64 states and 87 transitions. [2018-12-02 04:01:31,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 04:01:31,432 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-12-02 04:01:31,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:01:31,438 INFO L225 Difference]: With dead ends: 64 [2018-12-02 04:01:31,438 INFO L226 Difference]: Without dead ends: 32 [2018-12-02 04:01:31,440 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 04:01:31,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-12-02 04:01:31,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-12-02 04:01:31,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-12-02 04:01:31,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2018-12-02 04:01:31,470 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 23 [2018-12-02 04:01:31,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:01:31,470 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2018-12-02 04:01:31,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 04:01:31,471 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2018-12-02 04:01:31,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-02 04:01:31,471 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:01:31,472 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] [2018-12-02 04:01:31,472 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 04:01:31,472 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:01:31,472 INFO L82 PathProgramCache]: Analyzing trace with hash -723579698, now seen corresponding path program 1 times [2018-12-02 04:01:31,473 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 04:01:31,473 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_368917bd-5841-4d27-a006-12181932d52f/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-02 04:01:31,476 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:01:31,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:01:31,522 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 04:01:31,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:01:31,589 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 04:01:31,596 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 04:01:31,596 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 04:01:31,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 04:01:31,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 04:01:31,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 04:01:31,598 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand 6 states. [2018-12-02 04:01:31,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:01:31,774 INFO L93 Difference]: Finished difference Result 48 states and 49 transitions. [2018-12-02 04:01:31,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 04:01:31,775 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-12-02 04:01:31,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:01:31,777 INFO L225 Difference]: With dead ends: 48 [2018-12-02 04:01:31,777 INFO L226 Difference]: Without dead ends: 35 [2018-12-02 04:01:31,778 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-12-02 04:01:31,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-12-02 04:01:31,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 32. [2018-12-02 04:01:31,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-12-02 04:01:31,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2018-12-02 04:01:31,782 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 25 [2018-12-02 04:01:31,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:01:31,782 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2018-12-02 04:01:31,782 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 04:01:31,782 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2018-12-02 04:01:31,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-12-02 04:01:31,783 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:01:31,783 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] [2018-12-02 04:01:31,783 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 04:01:31,783 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:01:31,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1367100721, now seen corresponding path program 1 times [2018-12-02 04:01:31,784 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 04:01:31,784 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_368917bd-5841-4d27-a006-12181932d52f/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-02 04:01:31,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:01:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:01:31,820 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 04:01:31,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:01:31,985 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 04:01:31,996 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 04:01:31,996 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-12-02 04:01:31,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-02 04:01:31,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-02 04:01:31,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-12-02 04:01:31,997 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 11 states. [2018-12-02 04:01:32,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:01:32,337 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2018-12-02 04:01:32,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-02 04:01:32,337 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2018-12-02 04:01:32,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:01:32,338 INFO L225 Difference]: With dead ends: 40 [2018-12-02 04:01:32,338 INFO L226 Difference]: Without dead ends: 31 [2018-12-02 04:01:32,338 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-12-02 04:01:32,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-12-02 04:01:32,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-12-02 04:01:32,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-12-02 04:01:32,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2018-12-02 04:01:32,343 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 26 [2018-12-02 04:01:32,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:01:32,344 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2018-12-02 04:01:32,344 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-02 04:01:32,344 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2018-12-02 04:01:32,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-02 04:01:32,344 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 04:01:32,344 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] [2018-12-02 04:01:32,344 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 04:01:32,345 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 04:01:32,345 INFO L82 PathProgramCache]: Analyzing trace with hash -69324930, now seen corresponding path program 1 times [2018-12-02 04:01:32,345 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 04:01:32,345 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_368917bd-5841-4d27-a006-12181932d52f/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 [2018-12-02 04:01:32,348 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 04:01:32,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 04:01:32,383 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 04:01:32,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 04:01:32,454 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 04:01:32,461 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 04:01:32,461 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 04:01:32,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 04:01:32,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 04:01:32,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 04:01:32,462 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 7 states. [2018-12-02 04:01:32,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 04:01:32,656 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2018-12-02 04:01:32,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 04:01:32,657 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2018-12-02 04:01:32,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 04:01:32,658 INFO L225 Difference]: With dead ends: 31 [2018-12-02 04:01:32,658 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 04:01:32,658 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-02 04:01:32,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 04:01:32,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 04:01:32,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 04:01:32,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 04:01:32,659 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2018-12-02 04:01:32,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 04:01:32,659 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 04:01:32,660 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 04:01:32,660 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 04:01:32,660 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 04:01:32,662 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 04:01:32,761 INFO L451 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 44 53) the Hoare annotation is: true [2018-12-02 04:01:32,761 INFO L448 ceAbstractionStarter]: For program point L46-1(lines 46 50) no Hoare annotation was computed. [2018-12-02 04:01:32,761 INFO L444 ceAbstractionStarter]: At program point L46-2(lines 46 50) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-12-02 04:01:32,761 INFO L448 ceAbstractionStarter]: For program point L46-3(lines 46 50) no Hoare annotation was computed. [2018-12-02 04:01:32,761 INFO L448 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 44 53) no Hoare annotation was computed. [2018-12-02 04:01:32,761 INFO L448 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 44 53) no Hoare annotation was computed. [2018-12-02 04:01:32,761 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 04:01:32,762 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-02 04:01:32,762 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 04:01:32,762 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 04:01:32,762 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-02 04:01:32,762 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 04:01:32,762 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 04:01:32,762 INFO L448 ceAbstractionStarter]: For program point L66-1(lines 66 69) no Hoare annotation was computed. [2018-12-02 04:01:32,762 INFO L444 ceAbstractionStarter]: At program point L63(line 63) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24))) [2018-12-02 04:01:32,762 INFO L448 ceAbstractionStarter]: For program point L63-1(line 63) no Hoare annotation was computed. [2018-12-02 04:01:32,763 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 55 72) the Hoare annotation is: true [2018-12-02 04:01:32,763 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 55 72) no Hoare annotation was computed. [2018-12-02 04:01:32,763 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 55 72) no Hoare annotation was computed. [2018-12-02 04:01:32,763 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 67) no Hoare annotation was computed. [2018-12-02 04:01:32,763 INFO L448 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-12-02 04:01:32,763 INFO L444 ceAbstractionStarter]: At program point L66(line 66) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24)))) (and (= main_~res~0 .cse0) (= main_~x~0 .cse0))) [2018-12-02 04:01:32,763 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 39) no Hoare annotation was computed. [2018-12-02 04:01:32,763 INFO L448 ceAbstractionStarter]: For program point L21-1(lines 21 39) no Hoare annotation was computed. [2018-12-02 04:01:32,763 INFO L451 ceAbstractionStarter]: At program point trunc_floatENTRY(lines 12 41) the Hoare annotation is: true [2018-12-02 04:01:32,764 INFO L448 ceAbstractionStarter]: For program point trunc_floatEXIT(lines 12 41) no Hoare annotation was computed. [2018-12-02 04:01:32,764 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 30 34) no Hoare annotation was computed. [2018-12-02 04:01:32,764 INFO L444 ceAbstractionStarter]: At program point L30-2(lines 30 34) the Hoare annotation is: (and (= 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|) (bvslt (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32)))) (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|)) [2018-12-02 04:01:32,764 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2018-12-02 04:01:32,764 INFO L448 ceAbstractionStarter]: For program point trunc_floatFINAL(lines 12 41) no Hoare annotation was computed. [2018-12-02 04:01:32,764 INFO L448 ceAbstractionStarter]: For program point L22(lines 22 35) no Hoare annotation was computed. [2018-12-02 04:01:32,764 INFO L444 ceAbstractionStarter]: At program point L24-2(lines 24 28) the Hoare annotation is: (and (= 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|) (bvslt (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32)))) (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|)) [2018-12-02 04:01:32,765 INFO L448 ceAbstractionStarter]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2018-12-02 04:01:32,765 INFO L444 ceAbstractionStarter]: At program point L14-2(lines 14 18) the Hoare annotation is: (= trunc_float_~x |trunc_float_#in~x|) [2018-12-02 04:01:32,765 INFO L448 ceAbstractionStarter]: For program point L14-3(lines 14 18) no Hoare annotation was computed. [2018-12-02 04:01:32,765 INFO L448 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-12-02 04:01:32,769 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,769 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,770 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,770 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,770 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,770 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,770 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,771 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,775 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,775 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,775 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,775 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,776 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,776 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,776 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,776 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,777 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,777 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,777 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,778 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,778 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,778 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,778 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,778 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,779 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,779 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,779 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,779 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,780 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,780 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,780 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,780 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:01:32 BoogieIcfgContainer [2018-12-02 04:01:32,782 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 04:01:32,782 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 04:01:32,782 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 04:01:32,782 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 04:01:32,783 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:01:31" (3/4) ... [2018-12-02 04:01:32,785 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 04:01:32,789 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-12-02 04:01:32,789 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 04:01:32,790 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 04:01:32,790 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure trunc_float [2018-12-02 04:01:32,792 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-12-02 04:01:32,792 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-12-02 04:01:32,793 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 04:01:32,809 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-12-02 04:01:32,809 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-02 04:01:32,809 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((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) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 23bv32))) && (\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) [2018-12-02 04:01:32,809 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((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) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 23bv32))) && (\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) [2018-12-02 04:01:32,820 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_368917bd-5841-4d27-a006-12181932d52f/bin-2019/utaipan/witness.graphml [2018-12-02 04:01:32,820 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 04:01:32,821 INFO L168 Benchmark]: Toolchain (without parser) took 1975.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 944.7 MB in the beginning and 935.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 140.6 MB. Max. memory is 11.5 GB. [2018-12-02 04:01:32,821 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 04:01:32,822 INFO L168 Benchmark]: CACSL2BoogieTranslator took 165.58 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 934.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-02 04:01:32,822 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.39 ms. Allocated memory is still 1.0 GB. Free memory was 934.0 MB in the beginning and 928.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-02 04:01:32,822 INFO L168 Benchmark]: Boogie Preprocessor took 21.94 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 04:01:32,822 INFO L168 Benchmark]: RCFGBuilder took 218.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -171.9 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-12-02 04:01:32,823 INFO L168 Benchmark]: TraceAbstraction took 1513.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 935.2 MB in the end (delta: 165.3 MB). Peak memory consumption was 165.3 MB. Max. memory is 11.5 GB. [2018-12-02 04:01:32,823 INFO L168 Benchmark]: Witness Printer took 38.03 ms. Allocated memory is still 1.2 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 04:01:32,824 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 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 165.58 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 934.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.39 ms. Allocated memory is still 1.0 GB. Free memory was 934.0 MB in the beginning and 928.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.94 ms. Allocated memory is still 1.0 GB. Free memory is still 928.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 218.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 928.6 MB in the beginning and 1.1 GB in the end (delta: -171.9 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1513.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 935.2 MB in the end (delta: 165.3 MB). Peak memory consumption was 165.3 MB. Max. memory is 11.5 GB. * Witness Printer took 38.03 ms. Allocated memory is still 1.2 GB. Free memory is still 935.2 MB. There was no memory consumed. 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 [2018-12-02 04:01:32,827 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,828 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,828 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,828 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,828 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,828 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,828 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,829 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,829 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,829 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,829 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,830 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,830 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,830 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,830 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,830 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] Derived loop invariant: ((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) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 23bv32))) && (\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 [2018-12-02 04:01:32,831 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,831 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,831 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,832 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,832 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,832 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,832 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,832 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,833 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,833 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,833 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,833 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,833 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,833 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,834 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-12-02 04:01:32,834 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] Derived loop invariant: ((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) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 23bv32))) && (\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, 36 locations, 1 error locations. SAFE Result, 1.4s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 101 SDtfs, 74 SDslu, 320 SDs, 0 SdLazy, 135 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred 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, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 18 PreInvPairs, 23 NumberOfFragments, 143 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 98 ConstructedInterpolants, 11 QuantifiedInterpolants, 11867 SizeOfPredicates, 12 NumberOfNonLiveVariables, 277 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...