./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/float_req_bl_1072b_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_1072b_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 fd8d3d35d33d053f2e3c181cc7c34f9c77c4e005 ........................................................................................................................................................................................................................................................................................................ 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_1072b_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 fd8d3d35d33d053f2e3c181cc7c34f9c77c4e005 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 18:03:47,299 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:03:47,301 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:03:47,318 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:03:47,319 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:03:47,320 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:03:47,322 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:03:47,324 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:03:47,326 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:03:47,327 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:03:47,328 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:03:47,328 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:03:47,329 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:03:47,330 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:03:47,331 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:03:47,332 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:03:47,333 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:03:47,334 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:03:47,338 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:03:47,340 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:03:47,343 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:03:47,345 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:03:47,349 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:03:47,352 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:03:47,353 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:03:47,354 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:03:47,355 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:03:47,356 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:03:47,356 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:03:47,362 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:03:47,364 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:03:47,364 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:03:47,365 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:03:47,365 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:03:47,369 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:03:47,370 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:03:47,370 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 18:03:47,399 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:03:47,400 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:03:47,400 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:03:47,401 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:03:47,401 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:03:47,401 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:03:47,403 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:03:47,403 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:03:47,404 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:03:47,404 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 18:03:47,404 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:03:47,404 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:03:47,404 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:03:47,404 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:03:47,406 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:03:47,406 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:03:47,406 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:03:47,406 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:03:47,407 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:03:47,407 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:03:47,407 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:03:47,407 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:03:47,407 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:03:47,407 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:03:47,410 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:03:47,410 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:03:47,411 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:03:47,411 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 18:03:47,411 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:03:47,411 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 18:03:47,411 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 -> fd8d3d35d33d053f2e3c181cc7c34f9c77c4e005 [2018-11-28 18:03:47,465 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:03:47,476 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:03:47,479 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:03:47,481 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:03:47,481 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:03:47,482 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_1072b_true-unreach-call.c [2018-11-28 18:03:47,551 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1636030b/f0e5de384dc5406f96499759a473c881/FLAG8102fde65 [2018-11-28 18:03:48,032 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:03:48,033 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_1072b_true-unreach-call.c [2018-11-28 18:03:48,040 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1636030b/f0e5de384dc5406f96499759a473c881/FLAG8102fde65 [2018-11-28 18:03:48,401 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1636030b/f0e5de384dc5406f96499759a473c881 [2018-11-28 18:03:48,406 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:03:48,408 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:03:48,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:03:48,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:03:48,414 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:03:48,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:03:48" (1/1) ... [2018-11-28 18:03:48,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ef72e64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:48, skipping insertion in model container [2018-11-28 18:03:48,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:03:48" (1/1) ... [2018-11-28 18:03:48,429 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:03:48,451 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:03:48,681 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:03:48,686 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:03:48,715 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:03:48,740 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:03:48,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:48 WrapperNode [2018-11-28 18:03:48,741 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:03:48,741 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:03:48,742 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:03:48,742 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:03:48,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:48" (1/1) ... [2018-11-28 18:03:48,765 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:48" (1/1) ... [2018-11-28 18:03:48,774 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:03:48,775 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:03:48,775 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:03:48,775 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:03:48,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:48" (1/1) ... [2018-11-28 18:03:48,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:48" (1/1) ... [2018-11-28 18:03:48,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:48" (1/1) ... [2018-11-28 18:03:48,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:48" (1/1) ... [2018-11-28 18:03:48,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:48" (1/1) ... [2018-11-28 18:03:48,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:48" (1/1) ... [2018-11-28 18:03:48,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:48" (1/1) ... [2018-11-28 18:03:48,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:03:48,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:03:48,815 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:03:48,816 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:03:48,817 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:48" (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 18:03:48,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 18:03:48,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 18:03:48,937 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-28 18:03:48,937 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-28 18:03:48,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:03:48,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:03:48,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 18:03:48,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:03:48,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:03:48,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:03:48,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 18:03:48,939 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:03:48,939 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:03:48,939 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-11-28 18:03:48,939 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-11-28 18:03:48,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 18:03:49,441 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:03:49,441 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-11-28 18:03:49,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:49 BoogieIcfgContainer [2018-11-28 18:03:49,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:03:49,443 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:03:49,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:03:49,446 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:03:49,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:03:48" (1/3) ... [2018-11-28 18:03:49,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b64429d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:03:49, skipping insertion in model container [2018-11-28 18:03:49,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:48" (2/3) ... [2018-11-28 18:03:49,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b64429d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:03:49, skipping insertion in model container [2018-11-28 18:03:49,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:49" (3/3) ... [2018-11-28 18:03:49,451 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072b_true-unreach-call.c [2018-11-28 18:03:49,462 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:03:49,470 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:03:49,489 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:03:49,523 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:03:49,523 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:03:49,524 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:03:49,524 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:03:49,524 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:03:49,524 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:03:49,524 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:03:49,524 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:03:49,525 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:03:49,543 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2018-11-28 18:03:49,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 18:03:49,549 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:49,550 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 18:03:49,552 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:49,558 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:49,558 INFO L82 PathProgramCache]: Analyzing trace with hash -456969478, now seen corresponding path program 1 times [2018-11-28 18:03:49,560 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:03:49,561 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:03:49,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:03:49,606 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:49,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:03:49,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:49,697 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 18:03:49,700 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:49,700 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:03:49,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:03:49,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:03:49,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:03:49,723 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2018-11-28 18:03:49,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:49,746 INFO L93 Difference]: Finished difference Result 66 states and 89 transitions. [2018-11-28 18:03:49,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:03:49,747 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-11-28 18:03:49,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:49,755 INFO L225 Difference]: With dead ends: 66 [2018-11-28 18:03:49,755 INFO L226 Difference]: Without dead ends: 33 [2018-11-28 18:03:49,759 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 18:03:49,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-28 18:03:49,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-28 18:03:49,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-28 18:03:49,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2018-11-28 18:03:49,802 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 24 [2018-11-28 18:03:49,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:49,802 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2018-11-28 18:03:49,802 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:03:49,802 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2018-11-28 18:03:49,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 18:03:49,804 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:49,804 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 18:03:49,804 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:49,804 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:49,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1810155496, now seen corresponding path program 1 times [2018-11-28 18:03:49,805 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:03:49,805 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:03:49,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:03:49,806 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:49,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:03:49,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:03:49,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:03:49,966 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 18:03:50,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:03:50 BoogieIcfgContainer [2018-11-28 18:03:50,001 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:03:50,001 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:03:50,001 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:03:50,001 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:03:50,002 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:49" (3/4) ... [2018-11-28 18:03:50,007 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 18:03:50,007 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:03:50,008 INFO L168 Benchmark]: Toolchain (without parser) took 1601.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 950.0 MB in the beginning and 1.0 GB in the end (delta: -96.3 MB). Peak memory consumption was 10.1 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:50,010 INFO L168 Benchmark]: CDTParser took 0.15 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 18:03:50,011 INFO L168 Benchmark]: CACSL2BoogieTranslator took 331.88 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 939.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:50,011 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.02 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:03:50,012 INFO L168 Benchmark]: Boogie Preprocessor took 40.32 ms. Allocated memory is still 1.0 GB. Free memory was 939.3 MB in the beginning and 933.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:50,013 INFO L168 Benchmark]: RCFGBuilder took 626.84 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 933.9 MB in the beginning and 1.1 GB in the end (delta: -139.8 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:50,014 INFO L168 Benchmark]: TraceAbstraction took 557.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:50,015 INFO L168 Benchmark]: Witness Printer took 6.13 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:03:50,020 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 331.88 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 939.3 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 33.02 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.32 ms. Allocated memory is still 1.0 GB. Free memory was 939.3 MB in the beginning and 933.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 626.84 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 933.9 MB in the beginning and 1.1 GB in the end (delta: -139.8 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 557.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * Witness Printer took 6.13 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 66]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 37, overapproximation of bitwiseAnd at line 50. Possible FailurePath: [L61] float x = -1.0f / 0.0f; [L62] CALL, EXPR trunc_float(x) VAL [\old(x)=6442450951] [L12] __int32_t signbit, w, exponent_less_127; VAL [\old(x)=6442450951, x=6442450951] [L14] ieee_float_shape_type gf_u; [L15] gf_u.value = (x) [L16] EXPR gf_u.word [L16] (w) = gf_u.word [L18] signbit = w & 0x80000000 [L19] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 VAL [\old(x)=6442450951, exponent_less_127=255, signbit=0, w=3, x=6442450951] [L20] COND FALSE !(exponent_less_127 < 23) VAL [\old(x)=6442450951, exponent_less_127=255, signbit=0, w=3, x=6442450951] [L36] COND TRUE exponent_less_127 == 255 [L37] return x + x; VAL [\old(x)=6442450951, exponent_less_127=255, signbit=0, w=3, x=6442450951] [L62] RET, EXPR trunc_float(x) VAL [trunc_float(x)=6442450945, x=6442450951] [L62] float res = trunc_float(x); [L65] CALL, EXPR isinf_float(res) VAL [\old(x)=6442450945] [L44] __int32_t ix; VAL [\old(x)=6442450945, x=6442450945] [L46] ieee_float_shape_type gf_u; [L47] gf_u.value = (x) [L48] EXPR gf_u.word [L48] (ix) = gf_u.word [L50] ix &= 0x7fffffff [L51] return ((ix) == 0x7f800000L); VAL [\old(x)=6442450945, \result=0, ix=0, x=6442450945] [L65] RET, EXPR isinf_float(res) VAL [isinf_float(res)=0, res=6442450945, x=6442450951] [L65] COND TRUE !isinf_float(res) [L66] __VERIFIER_error() VAL [res=6442450945, x=6442450951] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 37 locations, 1 error locations. UNSAFE Result, 0.4s 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 18:03:52,449 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:03:52,452 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:03:52,469 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:03:52,469 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:03:52,470 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:03:52,471 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:03:52,473 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:03:52,475 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:03:52,476 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:03:52,477 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:03:52,477 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:03:52,478 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:03:52,479 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:03:52,481 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:03:52,481 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:03:52,482 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:03:52,484 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:03:52,486 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:03:52,488 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:03:52,489 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:03:52,490 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:03:52,492 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:03:52,493 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:03:52,493 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:03:52,494 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:03:52,495 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:03:52,495 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:03:52,496 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:03:52,497 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:03:52,498 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:03:52,498 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:03:52,499 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:03:52,499 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:03:52,500 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:03:52,500 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:03:52,501 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 18:03:52,529 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:03:52,530 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:03:52,531 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:03:52,531 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:03:52,532 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:03:52,532 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:03:52,532 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:03:52,534 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:03:52,535 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:03:52,535 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:03:52,535 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:03:52,535 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:03:52,535 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:03:52,535 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:03:52,536 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 18:03:52,536 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 18:03:52,537 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:03:52,537 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:03:52,537 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:03:52,537 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:03:52,537 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:03:52,537 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:03:52,538 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:03:52,538 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:03:52,538 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:03:52,538 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:03:52,538 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:03:52,539 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:03:52,542 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 18:03:52,542 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:03:52,542 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 18:03:52,542 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 18:03:52,542 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 -> fd8d3d35d33d053f2e3c181cc7c34f9c77c4e005 [2018-11-28 18:03:52,609 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:03:52,629 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:03:52,636 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:03:52,638 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:03:52,639 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:03:52,639 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_1072b_true-unreach-call.c [2018-11-28 18:03:52,697 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b04ea70ef/e6825ff2b323453392a8f81b1330d8bb/FLAG24d82a3d5 [2018-11-28 18:03:53,122 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:03:53,122 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_1072b_true-unreach-call.c [2018-11-28 18:03:53,129 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b04ea70ef/e6825ff2b323453392a8f81b1330d8bb/FLAG24d82a3d5 [2018-11-28 18:03:53,512 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b04ea70ef/e6825ff2b323453392a8f81b1330d8bb [2018-11-28 18:03:53,516 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:03:53,517 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:03:53,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:03:53,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:03:53,527 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:03:53,530 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:03:53" (1/1) ... [2018-11-28 18:03:53,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37dcfbb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:53, skipping insertion in model container [2018-11-28 18:03:53,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:03:53" (1/1) ... [2018-11-28 18:03:53,545 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:03:53,567 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:03:53,789 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:03:53,796 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:03:53,828 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:03:53,872 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:03:53,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:53 WrapperNode [2018-11-28 18:03:53,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:03:53,874 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:03:53,874 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:03:53,874 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:03:53,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:53" (1/1) ... [2018-11-28 18:03:53,905 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:53" (1/1) ... [2018-11-28 18:03:53,913 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:03:53,914 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:03:53,914 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:03:53,914 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:03:53,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:53" (1/1) ... [2018-11-28 18:03:53,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:53" (1/1) ... [2018-11-28 18:03:53,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:53" (1/1) ... [2018-11-28 18:03:53,931 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:53" (1/1) ... [2018-11-28 18:03:53,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:53" (1/1) ... [2018-11-28 18:03:53,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:53" (1/1) ... [2018-11-28 18:03:54,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:53" (1/1) ... [2018-11-28 18:03:54,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:03:54,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:03:54,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:03:54,053 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:03:54,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:53" (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 18:03:54,120 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-28 18:03:54,120 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-28 18:03:54,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:03:54,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:03:54,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:03:54,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 18:03:54,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:03:54,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:03:54,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-28 18:03:54,122 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:03:54,122 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:03:54,123 INFO L130 BoogieDeclarations]: Found specification of procedure trunc_float [2018-11-28 18:03:54,123 INFO L138 BoogieDeclarations]: Found implementation of procedure trunc_float [2018-11-28 18:03:54,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-28 18:03:54,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 18:03:54,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 18:03:54,302 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:03:54,482 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:03:54,650 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:03:54,650 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-11-28 18:03:54,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:54 BoogieIcfgContainer [2018-11-28 18:03:54,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:03:54,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:03:54,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:03:54,656 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:03:54,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:03:53" (1/3) ... [2018-11-28 18:03:54,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b62734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:03:54, skipping insertion in model container [2018-11-28 18:03:54,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:53" (2/3) ... [2018-11-28 18:03:54,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25b62734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:03:54, skipping insertion in model container [2018-11-28 18:03:54,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:54" (3/3) ... [2018-11-28 18:03:54,661 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072b_true-unreach-call.c [2018-11-28 18:03:54,671 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:03:54,677 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:03:54,694 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:03:54,728 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:03:54,728 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:03:54,729 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:03:54,729 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:03:54,730 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:03:54,730 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:03:54,730 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:03:54,730 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:03:54,730 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:03:54,749 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-11-28 18:03:54,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 18:03:54,755 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:54,756 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 18:03:54,758 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:54,764 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:54,764 INFO L82 PathProgramCache]: Analyzing trace with hash 503658527, now seen corresponding path program 1 times [2018-11-28 18:03:54,768 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:03:54,769 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 18:03:54,777 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:54,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:54,859 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:03:54,879 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 18:03:54,880 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:03:54,898 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:54,898 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:03:54,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:03:54,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:03:54,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:03:54,917 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2018-11-28 18:03:54,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:54,940 INFO L93 Difference]: Finished difference Result 64 states and 87 transitions. [2018-11-28 18:03:54,940 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:03:54,942 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-11-28 18:03:54,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:54,951 INFO L225 Difference]: With dead ends: 64 [2018-11-28 18:03:54,952 INFO L226 Difference]: Without dead ends: 32 [2018-11-28 18:03:54,956 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 18:03:54,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-28 18:03:54,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-28 18:03:54,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-28 18:03:54,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2018-11-28 18:03:54,997 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 23 [2018-11-28 18:03:54,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:54,997 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2018-11-28 18:03:54,997 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:03:54,998 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2018-11-28 18:03:54,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 18:03:54,999 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:54,999 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 18:03:55,000 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:55,000 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:55,000 INFO L82 PathProgramCache]: Analyzing trace with hash -723579698, now seen corresponding path program 1 times [2018-11-28 18:03:55,001 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:03:55,001 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) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-28 18:03:55,013 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:55,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:55,099 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:03:55,362 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 18:03:55,363 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:03:55,378 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:55,378 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 18:03:55,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 18:03:55,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 18:03:55,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 18:03:55,385 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand 6 states. [2018-11-28 18:03:56,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:56,119 INFO L93 Difference]: Finished difference Result 48 states and 49 transitions. [2018-11-28 18:03:56,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 18:03:56,124 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-11-28 18:03:56,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:56,127 INFO L225 Difference]: With dead ends: 48 [2018-11-28 18:03:56,128 INFO L226 Difference]: Without dead ends: 35 [2018-11-28 18:03:56,129 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 18:03:56,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-28 18:03:56,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 32. [2018-11-28 18:03:56,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-28 18:03:56,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2018-11-28 18:03:56,139 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 25 [2018-11-28 18:03:56,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:56,140 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2018-11-28 18:03:56,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 18:03:56,140 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2018-11-28 18:03:56,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 18:03:56,141 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:56,141 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 18:03:56,143 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:56,143 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:56,143 INFO L82 PathProgramCache]: Analyzing trace with hash -1367100721, now seen corresponding path program 1 times [2018-11-28 18:03:56,144 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:03:56,144 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 18:03:56,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:56,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:56,219 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:03:56,662 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 18:03:56,663 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:03:56,675 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:56,675 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-11-28 18:03:56,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-28 18:03:56,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 18:03:56,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-11-28 18:03:56,677 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 11 states. [2018-11-28 18:03:57,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:57,560 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2018-11-28 18:03:57,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-28 18:03:57,561 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 26 [2018-11-28 18:03:57,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:57,564 INFO L225 Difference]: With dead ends: 40 [2018-11-28 18:03:57,564 INFO L226 Difference]: Without dead ends: 31 [2018-11-28 18:03:57,565 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 18:03:57,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-28 18:03:57,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-11-28 18:03:57,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-28 18:03:57,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2018-11-28 18:03:57,574 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 26 [2018-11-28 18:03:57,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:57,575 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2018-11-28 18:03:57,576 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-28 18:03:57,576 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2018-11-28 18:03:57,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-28 18:03:57,577 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:57,577 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 18:03:57,578 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:57,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:57,579 INFO L82 PathProgramCache]: Analyzing trace with hash -69324930, now seen corresponding path program 1 times [2018-11-28 18:03:57,579 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:03:57,579 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 18:03:57,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:57,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:57,639 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:03:57,796 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 18:03:57,798 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:03:57,810 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:57,811 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 18:03:57,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 18:03:57,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 18:03:57,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:03:57,813 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 7 states. [2018-11-28 18:03:58,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:58,153 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2018-11-28 18:03:58,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 18:03:58,154 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2018-11-28 18:03:58,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:58,155 INFO L225 Difference]: With dead ends: 31 [2018-11-28 18:03:58,155 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 18:03:58,156 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 18:03:58,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 18:03:58,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 18:03:58,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 18:03:58,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 18:03:58,157 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2018-11-28 18:03:58,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:58,157 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 18:03:58,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 18:03:58,158 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 18:03:58,159 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 18:03:58,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 18:03:58,335 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-11-28 18:03:58,498 INFO L451 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 43 52) the Hoare annotation is: true [2018-11-28 18:03:58,499 INFO L448 ceAbstractionStarter]: For program point L45-1(lines 45 49) no Hoare annotation was computed. [2018-11-28 18:03:58,499 INFO L444 ceAbstractionStarter]: At program point L45-2(lines 45 49) the Hoare annotation is: (= |isinf_float_#in~x| isinf_float_~x) [2018-11-28 18:03:58,499 INFO L448 ceAbstractionStarter]: For program point L45-3(lines 45 49) no Hoare annotation was computed. [2018-11-28 18:03:58,499 INFO L448 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 43 52) no Hoare annotation was computed. [2018-11-28 18:03:58,499 INFO L448 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 43 52) no Hoare annotation was computed. [2018-11-28 18:03:58,499 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:03:58,499 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:03:58,500 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:03:58,500 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:03:58,500 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 18:03:58,500 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:03:58,500 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:03:58,500 INFO L444 ceAbstractionStarter]: At program point L65(line 65) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (and (= .cse0 main_~res~0) (= main_~x~0 .cse0))) [2018-11-28 18:03:58,503 INFO L448 ceAbstractionStarter]: For program point L65-1(lines 65 68) no Hoare annotation was computed. [2018-11-28 18:03:58,503 INFO L444 ceAbstractionStarter]: At program point L62(line 62) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) [2018-11-28 18:03:58,503 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 66) no Hoare annotation was computed. [2018-11-28 18:03:58,503 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 54 71) the Hoare annotation is: true [2018-11-28 18:03:58,504 INFO L448 ceAbstractionStarter]: For program point L62-1(line 62) no Hoare annotation was computed. [2018-11-28 18:03:58,505 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 54 71) no Hoare annotation was computed. [2018-11-28 18:03:58,505 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 54 71) no Hoare annotation was computed. [2018-11-28 18:03:58,505 INFO L448 ceAbstractionStarter]: For program point L66(line 66) no Hoare annotation was computed. [2018-11-28 18:03:58,505 INFO L448 ceAbstractionStarter]: For program point L29-1(lines 29 33) no Hoare annotation was computed. [2018-11-28 18:03:58,505 INFO L444 ceAbstractionStarter]: At program point L29-2(lines 29 33) 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 18:03:58,505 INFO L448 ceAbstractionStarter]: For program point L23-1(lines 23 27) no Hoare annotation was computed. [2018-11-28 18:03:58,506 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 34) no Hoare annotation was computed. [2018-11-28 18:03:58,506 INFO L444 ceAbstractionStarter]: At program point L23-2(lines 23 27) 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 18:03:58,506 INFO L451 ceAbstractionStarter]: At program point trunc_floatENTRY(lines 11 40) the Hoare annotation is: true [2018-11-28 18:03:58,506 INFO L448 ceAbstractionStarter]: For program point L13-1(lines 13 17) no Hoare annotation was computed. [2018-11-28 18:03:58,506 INFO L444 ceAbstractionStarter]: At program point L13-2(lines 13 17) the Hoare annotation is: (= trunc_float_~x |trunc_float_#in~x|) [2018-11-28 18:03:58,506 INFO L448 ceAbstractionStarter]: For program point L13-3(lines 13 17) no Hoare annotation was computed. [2018-11-28 18:03:58,509 INFO L448 ceAbstractionStarter]: For program point L36(lines 36 37) no Hoare annotation was computed. [2018-11-28 18:03:58,510 INFO L448 ceAbstractionStarter]: For program point trunc_floatEXIT(lines 11 40) no Hoare annotation was computed. [2018-11-28 18:03:58,510 INFO L448 ceAbstractionStarter]: For program point trunc_floatFINAL(lines 11 40) no Hoare annotation was computed. [2018-11-28 18:03:58,510 INFO L448 ceAbstractionStarter]: For program point L20(lines 20 38) no Hoare annotation was computed. [2018-11-28 18:03:58,510 INFO L448 ceAbstractionStarter]: For program point L20-1(lines 20 38) no Hoare annotation was computed. [2018-11-28 18:03:58,526 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,527 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,528 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,528 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,529 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,529 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,529 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,529 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,532 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,532 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,533 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,533 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,533 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,533 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,534 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,535 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,536 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,536 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,537 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,538 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,538 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,539 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,539 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,540 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,540 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,541 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,541 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,541 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,541 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,543 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,543 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,544 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:03:58 BoogieIcfgContainer [2018-11-28 18:03:58,547 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:03:58,548 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:03:58,548 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:03:58,548 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:03:58,549 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:54" (3/4) ... [2018-11-28 18:03:58,554 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 18:03:58,562 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-11-28 18:03:58,562 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 18:03:58,563 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 18:03:58,563 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure trunc_float [2018-11-28 18:03:58,569 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-11-28 18:03:58,570 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-28 18:03:58,570 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 18:03:58,606 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-28 18:03:58,606 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 18:03:58,607 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 18:03:58,607 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 18:03:58,637 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 18:03:58,638 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:03:58,638 INFO L168 Benchmark]: Toolchain (without parser) took 5122.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 951.3 MB in the beginning and 947.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 140.9 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:58,640 INFO L168 Benchmark]: CDTParser took 0.15 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 18:03:58,641 INFO L168 Benchmark]: CACSL2BoogieTranslator took 354.53 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 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 18:03:58,641 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.89 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:58,644 INFO L168 Benchmark]: Boogie Preprocessor took 138.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -190.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:58,647 INFO L168 Benchmark]: RCFGBuilder took 597.94 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: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:58,647 INFO L168 Benchmark]: TraceAbstraction took 3895.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 954.5 MB in the end (delta: 150.7 MB). Peak memory consumption was 150.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:58,648 INFO L168 Benchmark]: Witness Printer took 89.91 ms. Allocated memory is still 1.2 GB. Free memory was 954.5 MB in the beginning and 947.8 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:58,656 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 354.53 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 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 39.89 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 138.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -190.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 597.94 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: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3895.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 954.5 MB in the end (delta: 150.7 MB). Peak memory consumption was 150.7 MB. Max. memory is 11.5 GB. * Witness Printer took 89.91 ms. Allocated memory is still 1.2 GB. Free memory was 954.5 MB in the beginning and 947.8 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 66]: 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: 13]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 29]: Loop Invariant [2018-11-28 18:03:58,679 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,680 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,680 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,680 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,680 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,690 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,693 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,693 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,694 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,694 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,694 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,694 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,695 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,700 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,700 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,700 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: 45]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 23]: Loop Invariant [2018-11-28 18:03:58,701 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,702 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,702 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,702 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,702 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,703 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,710 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,710 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,711 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,711 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,711 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,711 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,712 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,712 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,712 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[trunc_float_~w~0,QUANTIFIED] [2018-11-28 18:03:58,712 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) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 36 locations, 1 error locations. SAFE Result, 3.7s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 2.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 101 SDtfs, 74 SDslu, 320 SDs, 0 SdLazy, 135 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s 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, 146 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 98 ConstructedInterpolants, 11 QuantifiedInterpolants, 11993 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...