./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1072c_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1072c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8c9432e09ab34163f77fe447dc3730a7acfb00e3 ................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1072c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8c9432e09ab34163f77fe447dc3730a7acfb00e3 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 15:38:27,354 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:38:27,355 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:38:27,364 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:38:27,364 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:38:27,365 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:38:27,366 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:38:27,367 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:38:27,370 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:38:27,371 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:38:27,374 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:38:27,374 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:38:27,375 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:38:27,375 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:38:27,376 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:38:27,377 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:38:27,377 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:38:27,382 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:38:27,385 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:38:27,386 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:38:27,387 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:38:27,388 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:38:27,390 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:38:27,390 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:38:27,390 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:38:27,391 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:38:27,391 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:38:27,392 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:38:27,393 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:38:27,393 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:38:27,394 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:38:27,395 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:38:27,395 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:38:27,396 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:38:27,396 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:38:27,397 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:38:27,397 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 15:38:27,409 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:38:27,409 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:38:27,410 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:38:27,410 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 15:38:27,410 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 15:38:27,410 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 15:38:27,410 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 15:38:27,410 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 15:38:27,411 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 15:38:27,411 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 15:38:27,411 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 15:38:27,411 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 15:38:27,411 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 15:38:27,412 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:38:27,412 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:38:27,412 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:38:27,412 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:38:27,412 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:38:27,412 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:38:27,412 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:38:27,413 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:38:27,413 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:38:27,413 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:38:27,413 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:38:27,413 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:38:27,413 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:38:27,413 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:38:27,416 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:38:27,416 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:38:27,416 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:38:27,416 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:38:27,416 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:38:27,416 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:38:27,416 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 15:38:27,417 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:38:27,417 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 15:38:27,417 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 15:38:27,417 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_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c9432e09ab34163f77fe447dc3730a7acfb00e3 [2018-11-18 15:38:27,441 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:38:27,451 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:38:27,454 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:38:27,456 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:38:27,456 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:38:27,457 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1072c_true-unreach-call.c [2018-11-18 15:38:27,500 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan/data/1f6de90fc/d498da6e77c84352b8df79992d09c1d7/FLAGaed6bcf69 [2018-11-18 15:38:27,878 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:38:27,878 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/sv-benchmarks/c/float-newlib/float_req_bl_1072c_true-unreach-call.c [2018-11-18 15:38:27,883 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan/data/1f6de90fc/d498da6e77c84352b8df79992d09c1d7/FLAGaed6bcf69 [2018-11-18 15:38:28,280 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan/data/1f6de90fc/d498da6e77c84352b8df79992d09c1d7 [2018-11-18 15:38:28,282 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:38:28,283 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:38:28,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:38:28,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:38:28,285 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:38:28,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:38:28" (1/1) ... [2018-11-18 15:38:28,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f10d5b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:28, skipping insertion in model container [2018-11-18 15:38:28,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:38:28" (1/1) ... [2018-11-18 15:38:28,296 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:38:28,309 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:38:28,459 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:38:28,462 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:38:28,479 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:38:28,494 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:38:28,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:28 WrapperNode [2018-11-18 15:38:28,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:38:28,495 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:38:28,495 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:38:28,495 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:38:28,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:28" (1/1) ... [2018-11-18 15:38:28,507 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:28" (1/1) ... [2018-11-18 15:38:28,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:38:28,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:38:28,513 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:38:28,513 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:38:28,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:28" (1/1) ... [2018-11-18 15:38:28,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:28" (1/1) ... [2018-11-18 15:38:28,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:28" (1/1) ... [2018-11-18 15:38:28,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:28" (1/1) ... [2018-11-18 15:38:28,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:28" (1/1) ... [2018-11-18 15:38:28,535 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:28" (1/1) ... [2018-11-18 15:38:28,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:28" (1/1) ... [2018-11-18 15:38:28,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:38:28,538 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:38:28,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:38:28,539 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:38:28,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:38:28,627 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:38:28,627 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:38:28,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 15:38:28,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 15:38:28,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:38:28,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:38:28,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 15:38:28,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:38:28,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:38:28,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:38:28,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 15:38:28,628 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-11-18 15:38:28,628 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-11-18 15:38:28,628 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-18 15:38:28,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-18 15:38:28,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 15:38:28,869 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:38:28,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:38:28 BoogieIcfgContainer [2018-11-18 15:38:28,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:38:28,870 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:38:28,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:38:28,873 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:38:28,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:38:28" (1/3) ... [2018-11-18 15:38:28,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d800522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:38:28, skipping insertion in model container [2018-11-18 15:38:28,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:28" (2/3) ... [2018-11-18 15:38:28,874 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d800522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:38:28, skipping insertion in model container [2018-11-18 15:38:28,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:38:28" (3/3) ... [2018-11-18 15:38:28,876 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072c_true-unreach-call.c [2018-11-18 15:38:28,884 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:38:28,890 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 15:38:28,899 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 15:38:28,920 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:38:28,920 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:38:28,921 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:38:28,921 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:38:28,921 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:38:28,921 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:38:28,921 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:38:28,921 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:38:28,936 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-11-18 15:38:28,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 15:38:28,940 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:38:28,941 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:38:28,942 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:38:28,946 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:38:28,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1323672872, now seen corresponding path program 1 times [2018-11-18 15:38:28,948 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:38:28,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:38:28,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:38:28,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:38:28,979 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:38:29,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:38:29,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:38:29,045 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:38:29,045 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 15:38:29,045 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:38:29,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 15:38:29,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 15:38:29,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 15:38:29,058 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2018-11-18 15:38:29,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:38:29,073 INFO L93 Difference]: Finished difference Result 68 states and 93 transitions. [2018-11-18 15:38:29,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 15:38:29,075 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-18 15:38:29,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:38:29,082 INFO L225 Difference]: With dead ends: 68 [2018-11-18 15:38:29,082 INFO L226 Difference]: Without dead ends: 34 [2018-11-18 15:38:29,085 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 15:38:29,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-18 15:38:29,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-18 15:38:29,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-18 15:38:29,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-11-18 15:38:29,110 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 18 [2018-11-18 15:38:29,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:38:29,111 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-11-18 15:38:29,111 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 15:38:29,111 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-11-18 15:38:29,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 15:38:29,112 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:38:29,112 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:38:29,112 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:38:29,112 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:38:29,112 INFO L82 PathProgramCache]: Analyzing trace with hash 203657517, now seen corresponding path program 1 times [2018-11-18 15:38:29,112 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:38:29,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:38:29,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:38:29,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:38:29,114 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:38:29,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:38:29,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:38:29,187 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 15:38:29,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 03:38:29 BoogieIcfgContainer [2018-11-18 15:38:29,207 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 15:38:29,207 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:38:29,207 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:38:29,207 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:38:29,208 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:38:28" (3/4) ... [2018-11-18 15:38:29,210 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 15:38:29,210 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:38:29,211 INFO L168 Benchmark]: Toolchain (without parser) took 928.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 959.7 MB in the beginning and 1.1 GB in the end (delta: -120.5 MB). Peak memory consumption was 7.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:38:29,212 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:38:29,212 INFO L168 Benchmark]: CACSL2BoogieTranslator took 211.20 ms. Allocated memory is still 1.0 GB. Free memory was 959.7 MB in the beginning and 946.2 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:38:29,213 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.56 ms. Allocated memory is still 1.0 GB. Free memory is still 946.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:38:29,213 INFO L168 Benchmark]: Boogie Preprocessor took 25.82 ms. Allocated memory is still 1.0 GB. Free memory was 946.2 MB in the beginning and 943.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:38:29,214 INFO L168 Benchmark]: RCFGBuilder took 330.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -163.4 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2018-11-18 15:38:29,214 INFO L168 Benchmark]: TraceAbstraction took 336.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2018-11-18 15:38:29,215 INFO L168 Benchmark]: Witness Printer took 3.36 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:38:29,218 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 211.20 ms. Allocated memory is still 1.0 GB. Free memory was 959.7 MB in the beginning and 946.2 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.56 ms. Allocated memory is still 1.0 GB. Free memory is still 946.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.82 ms. Allocated memory is still 1.0 GB. Free memory was 946.2 MB in the beginning and 943.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 330.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -163.4 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 336.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.36 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 67]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 66, overapproximation of bitwiseAnd at line 19, overapproximation of someBinaryArithmeticFLOAToperation at line 38. Possible FailurePath: [L62] float x = 0.0f; VAL [x=0] [L63] CALL, EXPR trunc_float(x) VAL [\old(x)=0] [L13] __int32_t signbit, w, exponent_less_127; VAL [\old(x)=0, x=0] [L15] FCALL ieee_float_shape_type gf_u; [L16] FCALL gf_u.value = (x) [L17] EXPR, FCALL gf_u.word [L17] (w) = gf_u.word [L18] COND FALSE !(0) VAL [\old(x)=0, w=-2147483648, x=0] [L19] signbit = w & 0x80000000 [L20] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=0, exponent_less_127=255, signbit=-1, w=-2147483648, x=0] [L21] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=0, exponent_less_127=255, signbit=-1, w=-2147483648, x=0] [L37] COND TRUE exponent_less_127 == 255 [L38] RET return x + x; VAL [\old(x)=0, exponent_less_127=255, signbit=-1, w=-2147483648, x=0] [L63] EXPR trunc_float(x) VAL [trunc_float(x)=6442450945, x=0] [L63] float res = trunc_float(x); [L66] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [res=6442450945, res == 0.0f && __signbit_float(res) == 0=0, x=0] [L66] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L67] __VERIFIER_error() VAL [res=6442450945, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 41 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 15:38:30,896 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:38:30,897 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:38:30,905 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:38:30,906 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:38:30,906 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:38:30,907 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:38:30,909 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:38:30,910 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:38:30,911 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:38:30,911 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:38:30,912 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:38:30,913 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:38:30,914 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:38:30,915 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:38:30,916 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:38:30,916 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:38:30,917 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:38:30,918 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:38:30,919 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:38:30,919 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:38:30,920 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:38:30,921 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:38:30,921 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:38:30,921 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:38:30,922 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:38:30,923 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:38:30,923 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:38:30,924 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:38:30,925 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:38:30,925 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:38:30,926 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:38:30,926 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:38:30,926 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:38:30,927 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:38:30,927 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:38:30,928 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 15:38:30,942 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:38:30,942 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:38:30,943 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:38:30,943 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 15:38:30,943 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 15:38:30,943 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 15:38:30,944 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 15:38:30,944 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 15:38:30,944 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 15:38:30,944 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 15:38:30,945 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:38:30,945 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:38:30,945 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:38:30,945 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:38:30,945 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:38:30,945 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:38:30,945 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:38:30,946 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 15:38:30,946 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 15:38:30,946 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:38:30,946 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:38:30,946 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:38:30,946 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:38:30,947 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:38:30,947 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:38:30,947 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:38:30,947 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:38:30,947 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:38:30,947 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:38:30,947 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:38:30,948 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:38:30,948 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 15:38:30,948 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:38:30,948 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 15:38:30,948 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 15:38:30,948 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_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c9432e09ab34163f77fe447dc3730a7acfb00e3 [2018-11-18 15:38:30,980 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:38:30,989 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:38:30,992 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:38:30,993 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:38:30,994 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:38:30,994 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1072c_true-unreach-call.c [2018-11-18 15:38:31,039 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan/data/9e862f1d7/5cf5868a18b6409f98d4d449e719d8e3/FLAG14d9a79b5 [2018-11-18 15:38:31,398 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:38:31,399 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/sv-benchmarks/c/float-newlib/float_req_bl_1072c_true-unreach-call.c [2018-11-18 15:38:31,403 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan/data/9e862f1d7/5cf5868a18b6409f98d4d449e719d8e3/FLAG14d9a79b5 [2018-11-18 15:38:31,414 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan/data/9e862f1d7/5cf5868a18b6409f98d4d449e719d8e3 [2018-11-18 15:38:31,416 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:38:31,417 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:38:31,417 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:38:31,418 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:38:31,420 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:38:31,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:38:31" (1/1) ... [2018-11-18 15:38:31,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58cab73c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:31, skipping insertion in model container [2018-11-18 15:38:31,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:38:31" (1/1) ... [2018-11-18 15:38:31,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:38:31,448 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:38:31,590 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:38:31,595 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:38:31,617 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:38:31,638 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:38:31,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:31 WrapperNode [2018-11-18 15:38:31,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:38:31,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:38:31,640 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:38:31,640 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:38:31,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:31" (1/1) ... [2018-11-18 15:38:31,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:31" (1/1) ... [2018-11-18 15:38:31,662 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:38:31,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:38:31,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:38:31,663 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:38:31,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:31" (1/1) ... [2018-11-18 15:38:31,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:31" (1/1) ... [2018-11-18 15:38:31,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:31" (1/1) ... [2018-11-18 15:38:31,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:31" (1/1) ... [2018-11-18 15:38:31,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:31" (1/1) ... [2018-11-18 15:38:31,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:31" (1/1) ... [2018-11-18 15:38:31,692 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:31" (1/1) ... [2018-11-18 15:38:31,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:38:31,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:38:31,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:38:31,695 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:38:31,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:38:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:38:31,816 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:38:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 15:38:31,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:38:31,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:38:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:38:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 15:38:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:38:31,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:38:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 15:38:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-11-18 15:38:31,817 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-11-18 15:38:31,817 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-18 15:38:31,818 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-18 15:38:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 15:38:31,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 15:38:32,098 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 15:38:32,109 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:38:32,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:38:32 BoogieIcfgContainer [2018-11-18 15:38:32,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:38:32,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:38:32,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:38:32,112 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:38:32,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:38:31" (1/3) ... [2018-11-18 15:38:32,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@598b622e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:38:32, skipping insertion in model container [2018-11-18 15:38:32,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:38:31" (2/3) ... [2018-11-18 15:38:32,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@598b622e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:38:32, skipping insertion in model container [2018-11-18 15:38:32,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:38:32" (3/3) ... [2018-11-18 15:38:32,114 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072c_true-unreach-call.c [2018-11-18 15:38:32,122 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:38:32,130 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 15:38:32,138 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 15:38:32,162 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 15:38:32,162 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:38:32,163 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:38:32,163 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:38:32,163 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:38:32,163 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:38:32,163 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:38:32,163 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:38:32,163 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:38:32,174 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-11-18 15:38:32,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 15:38:32,179 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:38:32,180 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:38:32,182 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:38:32,187 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:38:32,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1323672872, now seen corresponding path program 1 times [2018-11-18 15:38:32,191 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:38:32,192 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-18 15:38:32,202 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:38:32,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:38:32,263 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:38:32,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:38:32,280 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:38:32,293 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:38:32,293 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 15:38:32,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 15:38:32,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 15:38:32,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 15:38:32,305 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2018-11-18 15:38:32,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:38:32,320 INFO L93 Difference]: Finished difference Result 68 states and 93 transitions. [2018-11-18 15:38:32,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 15:38:32,321 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-18 15:38:32,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:38:32,327 INFO L225 Difference]: With dead ends: 68 [2018-11-18 15:38:32,327 INFO L226 Difference]: Without dead ends: 34 [2018-11-18 15:38:32,329 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 15:38:32,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-18 15:38:32,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-18 15:38:32,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-18 15:38:32,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-11-18 15:38:32,362 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 18 [2018-11-18 15:38:32,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:38:32,362 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-11-18 15:38:32,362 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 15:38:32,362 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-11-18 15:38:32,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 15:38:32,364 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:38:32,364 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:38:32,364 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:38:32,364 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:38:32,365 INFO L82 PathProgramCache]: Analyzing trace with hash 203657517, now seen corresponding path program 1 times [2018-11-18 15:38:32,365 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:38:32,365 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-18 15:38:32,372 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:38:32,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:38:32,424 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:38:32,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:38:32,593 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:38:32,606 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:38:32,606 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 15:38:32,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 15:38:32,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 15:38:32,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:38:32,608 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 7 states. [2018-11-18 15:38:33,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:38:33,005 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-11-18 15:38:33,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 15:38:33,007 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-11-18 15:38:33,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:38:33,008 INFO L225 Difference]: With dead ends: 52 [2018-11-18 15:38:33,008 INFO L226 Difference]: Without dead ends: 33 [2018-11-18 15:38:33,009 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 15:38:33,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-18 15:38:33,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-18 15:38:33,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-18 15:38:33,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2018-11-18 15:38:33,015 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 19 [2018-11-18 15:38:33,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:38:33,015 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2018-11-18 15:38:33,016 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 15:38:33,016 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2018-11-18 15:38:33,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 15:38:33,016 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:38:33,016 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:38:33,017 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:38:33,017 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:38:33,017 INFO L82 PathProgramCache]: Analyzing trace with hash -1915280597, now seen corresponding path program 1 times [2018-11-18 15:38:33,017 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:38:33,018 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-18 15:38:33,035 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:38:33,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:38:33,075 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:38:33,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:38:33,225 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:38:33,236 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:38:33,236 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 15:38:33,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 15:38:33,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 15:38:33,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:38:33,237 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 7 states. [2018-11-18 15:38:33,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:38:33,513 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2018-11-18 15:38:33,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 15:38:33,515 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-11-18 15:38:33,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:38:33,515 INFO L225 Difference]: With dead ends: 49 [2018-11-18 15:38:33,516 INFO L226 Difference]: Without dead ends: 31 [2018-11-18 15:38:33,516 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-11-18 15:38:33,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-18 15:38:33,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-11-18 15:38:33,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-18 15:38:33,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2018-11-18 15:38:33,520 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 22 [2018-11-18 15:38:33,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:38:33,520 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2018-11-18 15:38:33,520 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 15:38:33,520 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2018-11-18 15:38:33,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 15:38:33,521 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:38:33,521 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:38:33,521 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:38:33,522 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:38:33,522 INFO L82 PathProgramCache]: Analyzing trace with hash 2002083898, now seen corresponding path program 1 times [2018-11-18 15:38:33,523 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:38:33,523 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-18 15:38:33,528 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:38:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:38:33,556 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:38:33,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:38:33,752 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:38:33,766 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:38:33,766 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 15:38:33,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 15:38:33,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 15:38:33,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:38:33,767 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 7 states. [2018-11-18 15:38:33,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:38:33,918 INFO L93 Difference]: Finished difference Result 34 states and 33 transitions. [2018-11-18 15:38:33,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 15:38:33,918 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-11-18 15:38:33,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:38:33,919 INFO L225 Difference]: With dead ends: 34 [2018-11-18 15:38:33,919 INFO L226 Difference]: Without dead ends: 31 [2018-11-18 15:38:33,919 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 15:38:33,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-18 15:38:33,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-11-18 15:38:33,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-18 15:38:33,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 30 transitions. [2018-11-18 15:38:33,923 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 30 transitions. Word has length 22 [2018-11-18 15:38:33,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:38:33,923 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 30 transitions. [2018-11-18 15:38:33,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 15:38:33,923 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 30 transitions. [2018-11-18 15:38:33,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-18 15:38:33,924 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:38:33,924 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:38:33,924 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:38:33,924 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:38:33,925 INFO L82 PathProgramCache]: Analyzing trace with hash -834906711, now seen corresponding path program 1 times [2018-11-18 15:38:33,925 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:38:33,925 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-18 15:38:33,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:38:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:38:33,967 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:38:34,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:38:34,336 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:38:34,344 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:38:34,344 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-11-18 15:38:34,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-18 15:38:34,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-18 15:38:34,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2018-11-18 15:38:34,345 INFO L87 Difference]: Start difference. First operand 31 states and 30 transitions. Second operand 15 states. [2018-11-18 15:38:35,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:38:35,073 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2018-11-18 15:38:35,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 15:38:35,073 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 30 [2018-11-18 15:38:35,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:38:35,074 INFO L225 Difference]: With dead ends: 31 [2018-11-18 15:38:35,074 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 15:38:35,075 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=75, Invalid=477, Unknown=0, NotChecked=0, Total=552 [2018-11-18 15:38:35,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 15:38:35,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 15:38:35,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 15:38:35,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 15:38:35,075 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2018-11-18 15:38:35,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:38:35,076 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 15:38:35,076 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-18 15:38:35,076 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 15:38:35,076 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 15:38:35,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 15:38:35,279 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:38:35,279 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:38:35,280 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:38:35,280 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:38:35,280 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 15:38:35,280 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:38:35,280 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:38:35,280 INFO L421 ceAbstractionStarter]: At program point L66-1(line 66) the Hoare annotation is: (and (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (_ +zero 8 24) (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0))) (= main_~res~0 (let ((.cse0 (bvand (_ bv2147483648 32) trunc_float_~w~0))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))))) (= (_ +zero 8 24) main_~x~0) |main_#t~short10|) [2018-11-18 15:38:35,280 INFO L425 ceAbstractionStarter]: For program point L66-2(line 66) no Hoare annotation was computed. [2018-11-18 15:38:35,280 INFO L421 ceAbstractionStarter]: At program point L63(line 63) the Hoare annotation is: (= (_ +zero 8 24) main_~x~0) [2018-11-18 15:38:35,280 INFO L425 ceAbstractionStarter]: For program point L63-1(line 63) no Hoare annotation was computed. [2018-11-18 15:38:35,280 INFO L425 ceAbstractionStarter]: For program point L66-4(lines 66 69) no Hoare annotation was computed. [2018-11-18 15:38:35,280 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 55 72) the Hoare annotation is: true [2018-11-18 15:38:35,281 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 55 72) no Hoare annotation was computed. [2018-11-18 15:38:35,281 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 67) no Hoare annotation was computed. [2018-11-18 15:38:35,281 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 55 72) no Hoare annotation was computed. [2018-11-18 15:38:35,281 INFO L425 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-11-18 15:38:35,281 INFO L425 ceAbstractionStarter]: For program point L66(line 66) no Hoare annotation was computed. [2018-11-18 15:38:35,281 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2018-11-18 15:38:35,281 INFO L425 ceAbstractionStarter]: For program point trunc_floatFINAL(lines 12 41) no Hoare annotation was computed. [2018-11-18 15:38:35,281 INFO L421 ceAbstractionStarter]: At program point L24-3(lines 24 28) the Hoare annotation is: (and (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (bvand (_ bv2147483648 32) trunc_float_~w~0) trunc_float_~signbit~0) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|))) (= trunc_float_~x |trunc_float_#in~x|) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (= (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) trunc_float_~exponent_less_127~0))) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|)) [2018-11-18 15:38:35,281 INFO L425 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-11-18 15:38:35,281 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 39) no Hoare annotation was computed. [2018-11-18 15:38:35,281 INFO L425 ceAbstractionStarter]: For program point L21-1(lines 21 39) no Hoare annotation was computed. [2018-11-18 15:38:35,281 INFO L428 ceAbstractionStarter]: At program point trunc_floatENTRY(lines 12 41) the Hoare annotation is: true [2018-11-18 15:38:35,282 INFO L425 ceAbstractionStarter]: For program point trunc_floatEXIT(lines 12 41) no Hoare annotation was computed. [2018-11-18 15:38:35,282 INFO L425 ceAbstractionStarter]: For program point L30-1(lines 30 34) no Hoare annotation was computed. [2018-11-18 15:38:35,282 INFO L421 ceAbstractionStarter]: At program point L30-3(lines 30 34) the Hoare annotation is: (and (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (not (bvslt (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv0 32))) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|))) (= trunc_float_~x |trunc_float_#in~x|) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (= (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) trunc_float_~exponent_less_127~0))) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|)) [2018-11-18 15:38:35,282 INFO L425 ceAbstractionStarter]: For program point L22(lines 22 35) no Hoare annotation was computed. [2018-11-18 15:38:35,282 INFO L425 ceAbstractionStarter]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2018-11-18 15:38:35,282 INFO L421 ceAbstractionStarter]: At program point L14-3(lines 14 18) the Hoare annotation is: (= trunc_float_~x |trunc_float_#in~x|) [2018-11-18 15:38:35,282 INFO L425 ceAbstractionStarter]: For program point L14-4(lines 14 18) no Hoare annotation was computed. [2018-11-18 15:38:35,282 INFO L425 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 43 53) no Hoare annotation was computed. [2018-11-18 15:38:35,282 INFO L428 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 43 53) the Hoare annotation is: true [2018-11-18 15:38:35,282 INFO L425 ceAbstractionStarter]: For program point L46-1(lines 46 50) no Hoare annotation was computed. [2018-11-18 15:38:35,282 INFO L425 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 43 53) no Hoare annotation was computed. [2018-11-18 15:38:35,282 INFO L421 ceAbstractionStarter]: At program point L46-3(lines 46 50) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-11-18 15:38:35,282 INFO L425 ceAbstractionStarter]: For program point L46-4(lines 46 50) no Hoare annotation was computed. [2018-11-18 15:38:35,293 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,294 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,294 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,294 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,294 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,295 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,295 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,295 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,296 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,296 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,296 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,297 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,297 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,297 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,297 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,299 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,300 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,301 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,301 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,301 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,301 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,302 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,302 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,302 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,302 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,303 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,303 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,303 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,303 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,303 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,304 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,304 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 03:38:35 BoogieIcfgContainer [2018-11-18 15:38:35,306 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 15:38:35,306 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:38:35,306 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:38:35,306 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:38:35,307 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:38:32" (3/4) ... [2018-11-18 15:38:35,309 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 15:38:35,315 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 15:38:35,315 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 15:38:35,315 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure trunc_float [2018-11-18 15:38:35,315 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-11-18 15:38:35,320 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2018-11-18 15:38:35,320 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-18 15:38:35,320 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 15:38:35,343 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-18 15:38:35,343 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 15:38:35,343 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists trunc_float_~w~0 : bv32 :: ~bvand32(2147483648bv32, trunc_float_~w~0) == signbit && ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x)) && x == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) [2018-11-18 15:38:35,344 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists trunc_float_~w~0 : bv32 :: !~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 0bv32) && ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x)) && x == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) [2018-11-18 15:38:35,364 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bdda1f3c-dfc8-4b2d-a879-c165ca39f8d4/bin-2019/utaipan/witness.graphml [2018-11-18 15:38:35,364 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:38:35,365 INFO L168 Benchmark]: Toolchain (without parser) took 3948.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 945.2 MB in the beginning and 905.4 MB in the end (delta: 39.8 MB). Peak memory consumption was 202.3 MB. Max. memory is 11.5 GB. [2018-11-18 15:38:35,367 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:38:35,367 INFO L168 Benchmark]: CACSL2BoogieTranslator took 221.73 ms. Allocated memory is still 1.0 GB. Free memory was 945.2 MB in the beginning and 929.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 15:38:35,367 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.04 ms. Allocated memory is still 1.0 GB. Free memory is still 929.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:38:35,368 INFO L168 Benchmark]: Boogie Preprocessor took 31.81 ms. Allocated memory is still 1.0 GB. Free memory is still 929.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:38:35,368 INFO L168 Benchmark]: RCFGBuilder took 414.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 929.1 MB in the beginning and 1.1 GB in the end (delta: -196.4 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2018-11-18 15:38:35,368 INFO L168 Benchmark]: TraceAbstraction took 3195.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 912.1 MB in the end (delta: 213.4 MB). Peak memory consumption was 213.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:38:35,369 INFO L168 Benchmark]: Witness Printer took 58.20 ms. Allocated memory is still 1.2 GB. Free memory was 912.1 MB in the beginning and 905.4 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:38:35,371 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 221.73 ms. Allocated memory is still 1.0 GB. Free memory was 945.2 MB in the beginning and 929.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.04 ms. Allocated memory is still 1.0 GB. Free memory is still 929.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.81 ms. Allocated memory is still 1.0 GB. Free memory is still 929.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 414.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 929.1 MB in the beginning and 1.1 GB in the end (delta: -196.4 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3195.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 912.1 MB in the end (delta: 213.4 MB). Peak memory consumption was 213.4 MB. Max. memory is 11.5 GB. * Witness Printer took 58.20 ms. Allocated memory is still 1.2 GB. Free memory was 912.1 MB in the beginning and 905.4 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 67]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 30]: Loop Invariant [2018-11-18 15:38:35,376 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,376 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,377 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,377 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,377 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,377 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,377 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,377 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,378 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,378 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,378 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,378 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,379 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,379 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,379 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,379 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] Derived loop invariant: (((\exists trunc_float_~w~0 : bv32 :: !~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 0bv32) && ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x)) && x == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 24]: Loop Invariant [2018-11-18 15:38:35,380 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,380 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,380 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,380 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,380 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,380 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,380 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,381 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,381 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,381 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,381 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,381 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,381 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,381 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,382 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-18 15:38:35,382 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] Derived loop invariant: (((\exists trunc_float_~w~0 : bv32 :: ~bvand32(2147483648bv32, trunc_float_~w~0) == signbit && ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x)) && x == \old(x)) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 38 locations, 1 error locations. SAFE Result, 3.1s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 137 SDtfs, 106 SDslu, 507 SDs, 0 SdLazy, 229 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 126 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 18 PreInvPairs, 23 NumberOfFragments, 149 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 106 ConstructedInterpolants, 31 QuantifiedInterpolants, 19360 SizeOfPredicates, 21 NumberOfNonLiveVariables, 284 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...