./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/float_req_bl_1072a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-newlib/float_req_bl_1072a_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 61816a63e70562669051a12493c2c5215c575cb7 ........................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-newlib/float_req_bl_1072a_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 61816a63e70562669051a12493c2c5215c575cb7 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 18:03:43,387 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:03:43,389 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:03:43,402 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:03:43,402 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:03:43,403 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:03:43,405 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:03:43,407 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:03:43,410 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:03:43,411 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:03:43,412 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:03:43,413 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:03:43,413 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:03:43,414 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:03:43,417 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:03:43,420 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:03:43,421 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:03:43,426 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:03:43,428 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:03:43,430 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:03:43,431 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:03:43,433 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:03:43,436 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:03:43,436 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:03:43,437 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:03:43,438 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:03:43,438 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:03:43,440 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:03:43,441 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:03:43,442 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:03:43,442 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:03:43,443 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:03:43,443 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:03:43,443 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:03:43,444 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:03:43,446 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:03:43,446 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 18:03:43,462 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:03:43,462 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:03:43,463 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:03:43,463 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:03:43,464 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:03:43,464 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:03:43,464 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:03:43,465 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:03:43,465 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:03:43,465 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 18:03:43,466 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:03:43,466 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:03:43,466 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:03:43,466 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:03:43,466 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:03:43,467 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:03:43,467 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:03:43,467 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:03:43,467 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:03:43,467 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:03:43,467 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:03:43,469 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:03:43,469 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:03:43,469 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:03:43,470 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:03:43,470 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:03:43,470 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:03:43,470 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 18:03:43,470 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:03:43,470 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 18:03:43,472 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 61816a63e70562669051a12493c2c5215c575cb7 [2018-11-28 18:03:43,511 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:03:43,524 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:03:43,528 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:03:43,530 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:03:43,531 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:03:43,531 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_1072a_true-unreach-call.c [2018-11-28 18:03:43,604 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c8d94ee1/cf7948c273f44a99b335da0ccf5d24ee/FLAGea146f1d4 [2018-11-28 18:03:44,082 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:03:44,083 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_1072a_true-unreach-call.c [2018-11-28 18:03:44,091 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c8d94ee1/cf7948c273f44a99b335da0ccf5d24ee/FLAGea146f1d4 [2018-11-28 18:03:44,445 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c8d94ee1/cf7948c273f44a99b335da0ccf5d24ee [2018-11-28 18:03:44,449 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:03:44,451 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:03:44,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:03:44,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:03:44,457 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:03:44,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:03:44" (1/1) ... [2018-11-28 18:03:44,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30e4be95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:44, skipping insertion in model container [2018-11-28 18:03:44,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:03:44" (1/1) ... [2018-11-28 18:03:44,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:03:44,490 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:03:44,745 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:03:44,751 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:03:44,791 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:03:44,820 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:03:44,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:44 WrapperNode [2018-11-28 18:03:44,821 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:03:44,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:03:44,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:03:44,822 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:03:44,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:44" (1/1) ... [2018-11-28 18:03:44,842 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:44" (1/1) ... [2018-11-28 18:03:44,850 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:03:44,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:03:44,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:03:44,852 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:03:44,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:44" (1/1) ... [2018-11-28 18:03:44,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:44" (1/1) ... [2018-11-28 18:03:44,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:44" (1/1) ... [2018-11-28 18:03:44,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:44" (1/1) ... [2018-11-28 18:03:44,880 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:44" (1/1) ... [2018-11-28 18:03:44,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:44" (1/1) ... [2018-11-28 18:03:44,890 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:44" (1/1) ... [2018-11-28 18:03:44,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:03:44,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:03:44,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:03:44,894 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:03:44,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 18:03:45,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 18:03:45,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 18:03:45,016 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-28 18:03:45,016 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-28 18:03:45,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:03:45,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:03:45,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 18:03:45,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:03:45,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:03:45,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:03:45,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 18:03:45,017 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:03:45,017 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:03:45,017 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-11-28 18:03:45,017 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-11-28 18:03:45,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 18:03:45,530 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:03:45,531 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-11-28 18:03:45,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:45 BoogieIcfgContainer [2018-11-28 18:03:45,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:03:45,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:03:45,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:03:45,536 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:03:45,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:03:44" (1/3) ... [2018-11-28 18:03:45,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18c7388b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:03:45, skipping insertion in model container [2018-11-28 18:03:45,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:44" (2/3) ... [2018-11-28 18:03:45,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18c7388b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:03:45, skipping insertion in model container [2018-11-28 18:03:45,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:45" (3/3) ... [2018-11-28 18:03:45,540 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072a_true-unreach-call.c [2018-11-28 18:03:45,551 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:03:45,558 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:03:45,576 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:03:45,609 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:03:45,610 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:03:45,610 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:03:45,610 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:03:45,611 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:03:45,611 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:03:45,612 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:03:45,612 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:03:45,612 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:03:45,633 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-11-28 18:03:45,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 18:03:45,639 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:45,640 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:03:45,642 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:45,647 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:45,647 INFO L82 PathProgramCache]: Analyzing trace with hash -456969478, now seen corresponding path program 1 times [2018-11-28 18:03:45,649 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:03:45,650 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:03:45,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:03:45,704 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:45,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:03:45,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:45,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:03:45,804 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:45,805 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:03:45,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:03:45,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:03:45,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:03:45,824 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2018-11-28 18:03:45,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:45,855 INFO L93 Difference]: Finished difference Result 66 states and 89 transitions. [2018-11-28 18:03:45,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:03:45,857 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-28 18:03:45,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:45,867 INFO L225 Difference]: With dead ends: 66 [2018-11-28 18:03:45,869 INFO L226 Difference]: Without dead ends: 33 [2018-11-28 18:03:45,874 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:03:45,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-28 18:03:45,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-28 18:03:45,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-28 18:03:45,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2018-11-28 18:03:45,929 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 24 [2018-11-28 18:03:45,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:45,930 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2018-11-28 18:03:45,930 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:03:45,931 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2018-11-28 18:03:45,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 18:03:45,933 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:45,933 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:03:45,934 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:45,935 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:45,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1810155496, now seen corresponding path program 1 times [2018-11-28 18:03:45,935 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:03:45,935 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:03:45,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:03:45,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:45,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:03:46,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:03:46,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:03:46,134 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 18:03:46,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:03:46 BoogieIcfgContainer [2018-11-28 18:03:46,168 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:03:46,169 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:03:46,169 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:03:46,169 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:03:46,170 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:45" (3/4) ... [2018-11-28 18:03:46,174 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 18:03:46,174 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:03:46,175 INFO L168 Benchmark]: Toolchain (without parser) took 1724.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -130.5 MB). Peak memory consumption was 4.8 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:46,177 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:03:46,177 INFO L168 Benchmark]: CACSL2BoogieTranslator took 368.92 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 935.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:46,178 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.87 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:03:46,179 INFO L168 Benchmark]: Boogie Preprocessor took 42.12 ms. Allocated memory is still 1.0 GB. Free memory was 935.2 MB in the beginning and 929.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:46,180 INFO L168 Benchmark]: RCFGBuilder took 638.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -174.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:46,181 INFO L168 Benchmark]: TraceAbstraction took 635.73 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: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:46,182 INFO L168 Benchmark]: Witness Printer took 4.92 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. [2018-11-28 18:03:46,187 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 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 368.92 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 935.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.87 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.12 ms. Allocated memory is still 1.0 GB. Free memory was 935.2 MB in the beginning and 929.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 638.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -174.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 635.73 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: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.92 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 someBinaryArithmeticFLOAToperation at line 38, overapproximation of bitwiseAnd at line 51. Possible FailurePath: [L62] float x = 1.0f / 0.0f; [L63] CALL, EXPR trunc_float(x) VAL [\old(x)=6442450951] [L13] __int32_t signbit, w, exponent_less_127; VAL [\old(x)=6442450951, x=6442450951] [L15] ieee_float_shape_type gf_u; [L16] gf_u.value = (x) [L17] EXPR gf_u.word [L17] (w) = gf_u.word [L19] signbit = w & 0x80000000 [L20] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=6442450951, exponent_less_127=255, signbit=0, w=3, x=6442450951] [L21] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=6442450951, exponent_less_127=255, signbit=0, w=3, x=6442450951] [L37] COND TRUE exponent_less_127 == 255 [L38] return x + x; VAL [\old(x)=6442450951, exponent_less_127=255, signbit=0, w=3, x=6442450951] [L63] RET, EXPR trunc_float(x) VAL [trunc_float(x)=6442450945, x=6442450951] [L63] float res = trunc_float(x); [L66] CALL, EXPR isinf_float(res) VAL [\old(x)=6442450945] [L45] __int32_t ix; VAL [\old(x)=6442450945, x=6442450945] [L47] ieee_float_shape_type gf_u; [L48] gf_u.value = (x) [L49] EXPR gf_u.word [L49] (ix) = gf_u.word [L51] ix &= 0x7fffffff [L52] return ((ix) == 0x7f800000L); VAL [\old(x)=6442450945, \result=0, ix=0, x=6442450945] [L66] RET, EXPR isinf_float(res) VAL [isinf_float(res)=0, res=6442450945, x=6442450951] [L66] COND TRUE !isinf_float(res) [L67] __VERIFIER_error() VAL [res=6442450945, x=6442450951] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 37 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 39 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 529 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-91b1670 [2018-11-28 18:03:48,671 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:03:48,674 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:03:48,691 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:03:48,692 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:03:48,694 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:03:48,698 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:03:48,701 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:03:48,705 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:03:48,707 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:03:48,709 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:03:48,710 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:03:48,711 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:03:48,714 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:03:48,724 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:03:48,725 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:03:48,726 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:03:48,729 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:03:48,731 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:03:48,733 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:03:48,734 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:03:48,735 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:03:48,738 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:03:48,738 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:03:48,738 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:03:48,740 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:03:48,741 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:03:48,742 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:03:48,743 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:03:48,744 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:03:48,744 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:03:48,745 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:03:48,745 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:03:48,746 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:03:48,746 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:03:48,747 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:03:48,748 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 18:03:48,771 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:03:48,771 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:03:48,772 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:03:48,772 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:03:48,773 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:03:48,773 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:03:48,773 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:03:48,773 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:03:48,774 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:03:48,774 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:03:48,774 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:03:48,775 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:03:48,775 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:03:48,775 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:03:48,775 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 18:03:48,775 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 18:03:48,775 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:03:48,776 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:03:48,776 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:03:48,776 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:03:48,776 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:03:48,776 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:03:48,776 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:03:48,778 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:03:48,778 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:03:48,778 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:03:48,778 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:03:48,778 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:03:48,779 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 18:03:48,779 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:03:48,779 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 18:03:48,779 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 18:03:48,779 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 61816a63e70562669051a12493c2c5215c575cb7 [2018-11-28 18:03:48,830 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:03:48,842 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:03:48,846 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:03:48,848 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:03:48,848 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:03:48,849 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_1072a_true-unreach-call.c [2018-11-28 18:03:48,914 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06cd7b35c/372dd15ca21c444f8b88b86b9458d4ea/FLAG144a29cf4 [2018-11-28 18:03:49,370 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:03:49,370 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_1072a_true-unreach-call.c [2018-11-28 18:03:49,376 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06cd7b35c/372dd15ca21c444f8b88b86b9458d4ea/FLAG144a29cf4 [2018-11-28 18:03:49,714 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06cd7b35c/372dd15ca21c444f8b88b86b9458d4ea [2018-11-28 18:03:49,718 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:03:49,720 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:03:49,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:03:49,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:03:49,729 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:03:49,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:03:49" (1/1) ... [2018-11-28 18:03:49,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51d7b747 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:49, skipping insertion in model container [2018-11-28 18:03:49,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:03:49" (1/1) ... [2018-11-28 18:03:49,745 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:03:49,768 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:03:50,033 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:03:50,043 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:03:50,085 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:03:50,122 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:03:50,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:50 WrapperNode [2018-11-28 18:03:50,123 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:03:50,124 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:03:50,124 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:03:50,124 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:03:50,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:50" (1/1) ... [2018-11-28 18:03:50,150 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:50" (1/1) ... [2018-11-28 18:03:50,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:03:50,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:03:50,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:03:50,161 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:03:50,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:50" (1/1) ... [2018-11-28 18:03:50,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:50" (1/1) ... [2018-11-28 18:03:50,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:50" (1/1) ... [2018-11-28 18:03:50,184 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:50" (1/1) ... [2018-11-28 18:03:50,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:50" (1/1) ... [2018-11-28 18:03:50,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:50" (1/1) ... [2018-11-28 18:03:50,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:50" (1/1) ... [2018-11-28 18:03:50,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:03:50,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:03:50,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:03:50,307 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:03:50,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 18:03:50,369 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-28 18:03:50,369 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-28 18:03:50,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:03:50,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:03:50,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:03:50,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 18:03:50,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:03:50,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:03:50,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-28 18:03:50,370 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:03:50,370 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:03:50,370 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-11-28 18:03:50,371 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-11-28 18:03:50,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-28 18:03:50,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 18:03:50,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 18:03:50,540 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:03:50,758 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:03:50,894 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:03:50,894 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-11-28 18:03:50,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:50 BoogieIcfgContainer [2018-11-28 18:03:50,895 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:03:50,896 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:03:50,896 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:03:50,900 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:03:50,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:03:49" (1/3) ... [2018-11-28 18:03:50,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13b88307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:03:50, skipping insertion in model container [2018-11-28 18:03:50,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:50" (2/3) ... [2018-11-28 18:03:50,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13b88307 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:03:50, skipping insertion in model container [2018-11-28 18:03:50,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:50" (3/3) ... [2018-11-28 18:03:50,903 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072a_true-unreach-call.c [2018-11-28 18:03:50,914 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:03:50,924 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:03:50,942 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:03:50,975 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:03:50,976 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:03:50,977 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:03:50,977 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:03:50,977 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:03:50,977 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:03:50,978 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:03:50,978 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:03:50,978 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:03:51,007 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-11-28 18:03:51,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 18:03:51,014 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:51,015 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:03:51,019 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:51,025 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:51,026 INFO L82 PathProgramCache]: Analyzing trace with hash 503658527, now seen corresponding path program 1 times [2018-11-28 18:03:51,030 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:03:51,031 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 18:03:51,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:51,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:51,124 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:03:51,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:03:51,144 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:03:51,161 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:51,161 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:03:51,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:03:51,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:03:51,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:03:51,183 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2018-11-28 18:03:51,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:51,214 INFO L93 Difference]: Finished difference Result 64 states and 87 transitions. [2018-11-28 18:03:51,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:03:51,215 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-11-28 18:03:51,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:51,225 INFO L225 Difference]: With dead ends: 64 [2018-11-28 18:03:51,226 INFO L226 Difference]: Without dead ends: 32 [2018-11-28 18:03:51,229 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:03:51,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-28 18:03:51,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-28 18:03:51,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-28 18:03:51,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2018-11-28 18:03:51,267 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 23 [2018-11-28 18:03:51,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:51,268 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2018-11-28 18:03:51,268 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:03:51,268 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2018-11-28 18:03:51,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 18:03:51,270 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:51,270 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:03:51,270 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:51,270 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:51,271 INFO L82 PathProgramCache]: Analyzing trace with hash -723579698, now seen corresponding path program 1 times [2018-11-28 18:03:51,272 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:03:51,272 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-11-28 18:03:51,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-28 18:03:51,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:51,367 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:03:51,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:03:51,659 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:03:51,677 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:51,677 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 18:03:51,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 18:03:51,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 18:03:51,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 18:03:51,685 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand 6 states. [2018-11-28 18:03:52,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:52,211 INFO L93 Difference]: Finished difference Result 48 states and 49 transitions. [2018-11-28 18:03:52,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 18:03:52,212 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-11-28 18:03:52,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:52,217 INFO L225 Difference]: With dead ends: 48 [2018-11-28 18:03:52,218 INFO L226 Difference]: Without dead ends: 35 [2018-11-28 18:03:52,219 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-11-28 18:03:52,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-28 18:03:52,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 32. [2018-11-28 18:03:52,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-28 18:03:52,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2018-11-28 18:03:52,229 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 25 [2018-11-28 18:03:52,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:52,230 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2018-11-28 18:03:52,230 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 18:03:52,231 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2018-11-28 18:03:52,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 18:03:52,232 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:52,232 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:03:52,233 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:52,233 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:52,234 INFO L82 PathProgramCache]: Analyzing trace with hash -1367100721, now seen corresponding path program 1 times [2018-11-28 18:03:52,234 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:03:52,234 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 18:03:52,246 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:52,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:52,330 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:03:52,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:03:52,810 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:03:52,824 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:52,825 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-28 18:03:52,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-28 18:03:52,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 18:03:52,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-11-28 18:03:52,826 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 11 states. [2018-11-28 18:03:53,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:53,777 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2018-11-28 18:03:53,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 18:03:53,778 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2018-11-28 18:03:53,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:53,781 INFO L225 Difference]: With dead ends: 40 [2018-11-28 18:03:53,781 INFO L226 Difference]: Without dead ends: 31 [2018-11-28 18:03:53,782 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-11-28 18:03:53,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-28 18:03:53,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-11-28 18:03:53,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-28 18:03:53,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2018-11-28 18:03:53,794 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 26 [2018-11-28 18:03:53,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:53,795 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2018-11-28 18:03:53,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-28 18:03:53,795 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2018-11-28 18:03:53,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-28 18:03:53,797 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:53,797 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:03:53,798 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:53,798 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:53,798 INFO L82 PathProgramCache]: Analyzing trace with hash -69324930, now seen corresponding path program 1 times [2018-11-28 18:03:53,799 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:03:53,800 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 18:03:53,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:53,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:53,876 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:03:54,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:03:54,051 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:03:54,062 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:54,062 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 18:03:54,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 18:03:54,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 18:03:54,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:03:54,064 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 7 states. [2018-11-28 18:03:54,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:54,368 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2018-11-28 18:03:54,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 18:03:54,369 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2018-11-28 18:03:54,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:54,370 INFO L225 Difference]: With dead ends: 31 [2018-11-28 18:03:54,370 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 18:03:54,371 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-28 18:03:54,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 18:03:54,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 18:03:54,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 18:03:54,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 18:03:54,373 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2018-11-28 18:03:54,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:54,373 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 18:03:54,373 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 18:03:54,373 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 18:03:54,373 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 18:03:54,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 18:03:54,564 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-11-28 18:03:54,656 INFO L451 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 44 53) the Hoare annotation is: true [2018-11-28 18:03:54,656 INFO L448 ceAbstractionStarter]: For program point L46-1(lines 46 50) no Hoare annotation was computed. [2018-11-28 18:03:54,656 INFO L444 ceAbstractionStarter]: At program point L46-2(lines 46 50) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-11-28 18:03:54,656 INFO L448 ceAbstractionStarter]: For program point L46-3(lines 46 50) no Hoare annotation was computed. [2018-11-28 18:03:54,656 INFO L448 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 44 53) no Hoare annotation was computed. [2018-11-28 18:03:54,657 INFO L448 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 44 53) no Hoare annotation was computed. [2018-11-28 18:03:54,657 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:03:54,657 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:03:54,657 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:03:54,657 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:03:54,657 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 18:03:54,658 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:03:54,658 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:03:54,658 INFO L448 ceAbstractionStarter]: For program point L66-1(lines 66 69) no Hoare annotation was computed. [2018-11-28 18:03:54,658 INFO L444 ceAbstractionStarter]: At program point L63(line 63) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24))) [2018-11-28 18:03:54,658 INFO L448 ceAbstractionStarter]: For program point L63-1(line 63) no Hoare annotation was computed. [2018-11-28 18:03:54,658 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 55 72) the Hoare annotation is: true [2018-11-28 18:03:54,658 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 55 72) no Hoare annotation was computed. [2018-11-28 18:03:54,659 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 55 72) no Hoare annotation was computed. [2018-11-28 18:03:54,659 INFO L448 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-11-28 18:03:54,659 INFO L444 ceAbstractionStarter]: At program point L66(line 66) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24)))) (and (= main_~res~0 .cse0) (= main_~x~0 .cse0))) [2018-11-28 18:03:54,659 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 67) no Hoare annotation was computed. [2018-11-28 18:03:54,659 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 39) no Hoare annotation was computed. [2018-11-28 18:03:54,660 INFO L448 ceAbstractionStarter]: For program point L21-1(lines 21 39) no Hoare annotation was computed. [2018-11-28 18:03:54,660 INFO L451 ceAbstractionStarter]: At program point trunc_floatENTRY(lines 12 41) the Hoare annotation is: true [2018-11-28 18:03:54,660 INFO L448 ceAbstractionStarter]: For program point trunc_floatEXIT(lines 12 41) no Hoare annotation was computed. [2018-11-28 18:03:54,660 INFO L448 ceAbstractionStarter]: For program point L30-1(lines 30 34) no Hoare annotation was computed. [2018-11-28 18:03:54,660 INFO L444 ceAbstractionStarter]: At program point L30-2(lines 30 34) the Hoare annotation is: (and (= trunc_float_~x |trunc_float_#in~x|) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (bvslt (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32)))) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (= (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) trunc_float_~exponent_less_127~0))) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|)) [2018-11-28 18:03:54,661 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2018-11-28 18:03:54,661 INFO L448 ceAbstractionStarter]: For program point trunc_floatFINAL(lines 12 41) no Hoare annotation was computed. [2018-11-28 18:03:54,661 INFO L448 ceAbstractionStarter]: For program point L22(lines 22 35) no Hoare annotation was computed. [2018-11-28 18:03:54,661 INFO L444 ceAbstractionStarter]: At program point L24-2(lines 24 28) the Hoare annotation is: (and (= trunc_float_~x |trunc_float_#in~x|) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (bvslt (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32)))) (exists ((trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|) (= (bvadd (bvashr (bvand (_ bv2139095040 32) trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) trunc_float_~exponent_less_127~0))) (= (fp ((_ extract 31 31) trunc_float_~w~0) ((_ extract 30 23) trunc_float_~w~0) ((_ extract 22 0) trunc_float_~w~0)) |trunc_float_#in~x|)) [2018-11-28 18:03:54,661 INFO L448 ceAbstractionStarter]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2018-11-28 18:03:54,662 INFO L444 ceAbstractionStarter]: At program point L14-2(lines 14 18) the Hoare annotation is: (= trunc_float_~x |trunc_float_#in~x|) [2018-11-28 18:03:54,662 INFO L448 ceAbstractionStarter]: For program point L14-3(lines 14 18) no Hoare annotation was computed. [2018-11-28 18:03:54,662 INFO L448 ceAbstractionStarter]: For program point L37(lines 37 38) no Hoare annotation was computed. [2018-11-28 18:03:54,669 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,670 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,671 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,671 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,671 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,671 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,672 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,672 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,680 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,681 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,681 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,681 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,682 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,682 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,682 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,682 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,684 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,684 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,685 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,685 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,685 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,686 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,686 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,686 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,687 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,687 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,688 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,688 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,688 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,688 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,689 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,689 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:03:54 BoogieIcfgContainer [2018-11-28 18:03:54,692 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:03:54,692 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:03:54,692 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:03:54,693 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:03:54,693 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:50" (3/4) ... [2018-11-28 18:03:54,698 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 18:03:54,705 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-11-28 18:03:54,706 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 18:03:54,706 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 18:03:54,706 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure trunc_float [2018-11-28 18:03:54,713 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-11-28 18:03:54,713 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-28 18:03:54,714 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 18:03:54,752 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-28 18:03:54,752 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 18:03:54,753 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == \old(x) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) [2018-11-28 18:03:54,755 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == \old(x) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) [2018-11-28 18:03:54,794 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 18:03:54,794 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:03:54,795 INFO L168 Benchmark]: Toolchain (without parser) took 5076.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 951.4 MB in the beginning and 935.1 MB in the end (delta: 16.3 MB). Peak memory consumption was 144.2 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:54,800 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:03:54,800 INFO L168 Benchmark]: CACSL2BoogieTranslator took 402.61 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:54,801 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.36 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:54,801 INFO L168 Benchmark]: Boogie Preprocessor took 146.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -185.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:54,803 INFO L168 Benchmark]: RCFGBuilder took 587.96 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: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:54,803 INFO L168 Benchmark]: TraceAbstraction took 3796.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 941.9 MB in the end (delta: 153.2 MB). Peak memory consumption was 153.2 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:54,805 INFO L168 Benchmark]: Witness Printer took 102.07 ms. Allocated memory is still 1.2 GB. Free memory was 941.9 MB in the beginning and 935.1 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:54,815 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 402.61 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.36 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 146.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -185.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 587.96 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: 26.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3796.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 941.9 MB in the end (delta: 153.2 MB). Peak memory consumption was 153.2 MB. Max. memory is 11.5 GB. * Witness Printer took 102.07 ms. Allocated memory is still 1.2 GB. Free memory was 941.9 MB in the beginning and 935.1 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 67]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant [2018-11-28 18:03:54,832 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,832 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,832 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,832 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,833 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,833 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,833 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,833 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,836 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,836 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,836 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,837 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,837 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,837 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,837 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,838 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] Derived loop invariant: ((x == \old(x) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 30]: Loop Invariant [2018-11-28 18:03:54,843 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,843 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,843 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,844 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,844 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,844 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,844 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,844 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,845 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,845 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,845 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,849 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,849 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,849 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,849 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:54,850 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] Derived loop invariant: ((x == \old(x) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvslt32(~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32), 23bv32))) && (\exists trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(trunc_float_~w~0[31:31], trunc_float_~w~0[30:23], trunc_float_~w~0[22:0]) == \old(x) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == \old(x) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 36 locations, 1 error locations. SAFE Result, 3.6s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 1.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 101 SDtfs, 74 SDslu, 320 SDs, 0 SdLazy, 135 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 18 PreInvPairs, 23 NumberOfFragments, 143 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 98 ConstructedInterpolants, 11 QuantifiedInterpolants, 11867 SizeOfPredicates, 12 NumberOfNonLiveVariables, 277 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...