./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/float_req_bl_0970b_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_0970b_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 43a504f2a78cd97f2f59239768b095c018a8cdcb .............................................................................................................................................................................................................................................................................................................. 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_0970b_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 43a504f2a78cd97f2f59239768b095c018a8cdcb ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 18:03:07,362 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:03:07,364 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:03:07,377 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:03:07,377 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:03:07,379 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:03:07,380 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:03:07,383 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:03:07,385 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:03:07,388 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:03:07,391 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:03:07,391 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:03:07,393 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:03:07,394 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:03:07,396 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:03:07,397 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:03:07,398 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:03:07,406 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:03:07,408 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:03:07,415 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:03:07,416 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:03:07,420 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:03:07,425 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:03:07,426 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:03:07,426 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:03:07,428 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:03:07,429 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:03:07,432 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:03:07,433 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:03:07,438 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:03:07,439 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:03:07,440 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:03:07,441 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:03:07,441 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:03:07,442 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:03:07,443 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:03:07,444 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 18:03:07,468 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:03:07,470 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:03:07,470 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:03:07,471 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:03:07,471 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:03:07,471 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:03:07,472 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:03:07,472 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:03:07,472 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:03:07,472 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 18:03:07,472 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:03:07,473 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:03:07,473 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:03:07,473 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:03:07,473 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:03:07,473 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:03:07,473 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:03:07,474 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:03:07,474 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:03:07,474 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:03:07,474 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:03:07,474 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:03:07,474 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:03:07,475 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:03:07,475 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:03:07,475 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:03:07,475 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:03:07,475 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 18:03:07,475 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:03:07,476 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 18:03:07,476 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 -> 43a504f2a78cd97f2f59239768b095c018a8cdcb [2018-11-28 18:03:07,542 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:03:07,559 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:03:07,565 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:03:07,568 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:03:07,569 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:03:07,569 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_0970b_true-unreach-call.c [2018-11-28 18:03:07,637 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f8ca47e2/5858b9a041a34210818032b31fbceaa3/FLAG858420c98 [2018-11-28 18:03:08,113 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:03:08,114 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_0970b_true-unreach-call.c [2018-11-28 18:03:08,123 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f8ca47e2/5858b9a041a34210818032b31fbceaa3/FLAG858420c98 [2018-11-28 18:03:08,456 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f8ca47e2/5858b9a041a34210818032b31fbceaa3 [2018-11-28 18:03:08,460 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:03:08,463 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:03:08,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:03:08,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:03:08,469 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:03:08,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:03:08" (1/1) ... [2018-11-28 18:03:08,475 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@704b1397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:08, skipping insertion in model container [2018-11-28 18:03:08,475 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:03:08" (1/1) ... [2018-11-28 18:03:08,485 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:03:08,514 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:03:08,859 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:03:08,871 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:03:08,956 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:03:08,994 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:03:08,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:08 WrapperNode [2018-11-28 18:03:08,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:03:08,996 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:03:08,996 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:03:08,996 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:03:09,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:08" (1/1) ... [2018-11-28 18:03:09,101 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:08" (1/1) ... [2018-11-28 18:03:09,117 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:03:09,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:03:09,119 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:03:09,119 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:03:09,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:08" (1/1) ... [2018-11-28 18:03:09,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:08" (1/1) ... [2018-11-28 18:03:09,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:08" (1/1) ... [2018-11-28 18:03:09,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:08" (1/1) ... [2018-11-28 18:03:09,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:08" (1/1) ... [2018-11-28 18:03:09,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:08" (1/1) ... [2018-11-28 18:03:09,192 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:08" (1/1) ... [2018-11-28 18:03:09,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:03:09,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:03:09,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:03:09,200 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:03:09,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:08" (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 18:03:09,275 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:03:09,277 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:03:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-28 18:03:09,278 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-28 18:03:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 18:03:09,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 18:03:09,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:03:09,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:03:09,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 18:03:09,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:03:09,281 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-11-28 18:03:09,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-11-28 18:03:09,281 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log10f [2018-11-28 18:03:09,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log10f [2018-11-28 18:03:09,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:03:09,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:03:09,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 18:03:09,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 18:03:10,087 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:03:10,088 INFO L280 CfgBuilder]: Removed 12 assue(true) statements. [2018-11-28 18:03:10,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:10 BoogieIcfgContainer [2018-11-28 18:03:10,088 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:03:10,089 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:03:10,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:03:10,094 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:03:10,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:03:08" (1/3) ... [2018-11-28 18:03:10,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d6b03f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:03:10, skipping insertion in model container [2018-11-28 18:03:10,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:08" (2/3) ... [2018-11-28 18:03:10,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d6b03f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:03:10, skipping insertion in model container [2018-11-28 18:03:10,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:10" (3/3) ... [2018-11-28 18:03:10,099 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970b_true-unreach-call.c [2018-11-28 18:03:10,108 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:03:10,116 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:03:10,136 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:03:10,170 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:03:10,171 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:03:10,171 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:03:10,171 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:03:10,171 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:03:10,171 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:03:10,171 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:03:10,172 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:03:10,172 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:03:10,193 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2018-11-28 18:03:10,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 18:03:10,199 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:10,201 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] [2018-11-28 18:03:10,203 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:10,208 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:10,209 INFO L82 PathProgramCache]: Analyzing trace with hash -1365748733, now seen corresponding path program 1 times [2018-11-28 18:03:10,210 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:03:10,211 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:03:10,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:03:10,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:10,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:03:10,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:10,393 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 18:03:10,396 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:10,396 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:03:10,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:03:10,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:03:10,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:03:10,416 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 2 states. [2018-11-28 18:03:10,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:10,445 INFO L93 Difference]: Finished difference Result 112 states and 167 transitions. [2018-11-28 18:03:10,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:03:10,447 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-28 18:03:10,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:10,458 INFO L225 Difference]: With dead ends: 112 [2018-11-28 18:03:10,458 INFO L226 Difference]: Without dead ends: 56 [2018-11-28 18:03:10,462 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 18:03:10,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-11-28 18:03:10,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-11-28 18:03:10,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-11-28 18:03:10,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 70 transitions. [2018-11-28 18:03:10,518 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 70 transitions. Word has length 21 [2018-11-28 18:03:10,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:10,518 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 70 transitions. [2018-11-28 18:03:10,518 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:03:10,519 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 70 transitions. [2018-11-28 18:03:10,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 18:03:10,520 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:10,520 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:03:10,520 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:10,521 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:10,521 INFO L82 PathProgramCache]: Analyzing trace with hash -1230257407, now seen corresponding path program 1 times [2018-11-28 18:03:10,521 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:03:10,521 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:03:10,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:03:10,523 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:10,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:03:10,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:03:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:03:10,653 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 18:03:10,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:03:10 BoogieIcfgContainer [2018-11-28 18:03:10,716 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:03:10,717 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:03:10,717 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:03:10,717 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:03:10,718 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:10" (3/4) ... [2018-11-28 18:03:10,722 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 18:03:10,723 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:03:10,723 INFO L168 Benchmark]: Toolchain (without parser) took 2262.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -105.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:10,726 INFO L168 Benchmark]: CDTParser took 0.16 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 18:03:10,726 INFO L168 Benchmark]: CACSL2BoogieTranslator took 531.08 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 935.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:10,727 INFO L168 Benchmark]: Boogie Procedure Inliner took 120.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -180.9 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:10,728 INFO L168 Benchmark]: Boogie Preprocessor took 81.91 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:03:10,729 INFO L168 Benchmark]: RCFGBuilder took 889.12 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:10,730 INFO L168 Benchmark]: TraceAbstraction took 627.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:10,730 INFO L168 Benchmark]: Witness Printer took 5.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:03:10,735 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 531.08 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 935.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 120.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -180.9 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 81.91 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 889.12 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: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 627.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 159]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 145, overapproximation of someBinaryArithmeticFLOAToperation at line 117, overapproximation of bitwiseAnd at line 116. Possible FailurePath: [L12-L16] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L18] static const float zero_log = 0.0; [L98-L101] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L103] static const float zero = 0.0; VAL [\old(ivln10_log10)=6442450946, \old(Lg1_log)=6442450965, \old(Lg2_log)=6442450967, \old(Lg3_log)=6442450945, \old(Lg4_log)=6442450949, \old(Lg5_log)=6442450952, \old(Lg6_log)=6442450963, \old(Lg7_log)=6442450959, \old(ln2_hi_log)=6442450948, \old(ln2_lo_log)=6442450954, \old(log10_2hi_log10)=6442450957, \old(log10_2lo_log10)=6442450962, \old(two25_log)=6442450958, \old(two25_log10)=6442450961, \old(zero)=6442450966, \old(zero_log)=6442450956, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L154] float x = -1.0f / 0.0f; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L155] CALL, EXPR __ieee754_log10f(x) VAL [\old(x)=6442450964, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L106] float y, z; [L107] __int32_t i, k, hx; VAL [\old(x)=6442450964, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450964, zero=0, zero_log=0] [L110] ieee_float_shape_type gf_u; [L111] gf_u.value = (x) [L112] EXPR gf_u.word [L112] (hx) = gf_u.word [L115] k = 0 VAL [\old(x)=6442450964, hx=-2147483648, ivln10_log10=43429449201/100000000000, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450964, zero=0, zero_log=0] [L116] COND TRUE ((hx & 0x7fffffff) == 0) [L117] return -two25_log10 / zero; VAL [\old(x)=6442450964, hx=-2147483648, ivln10_log10=43429449201/100000000000, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450964, zero=0, zero_log=0] [L155] RET, EXPR __ieee754_log10f(x) VAL [__ieee754_log10f(x)=6442450951, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450964, zero=0, zero_log=0] [L155] float res = __ieee754_log10f(x); [L158] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450951, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L145] return x != x; VAL [\old(x)=6442450951, \result=0, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450951, zero=0, zero_log=0] [L158] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, res=6442450951, two25_log=33554432, two25_log10=33554432, x=6442450964, zero=0, zero_log=0] [L158] COND TRUE !isnan_float(res) [L159] __VERIFIER_error() VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, res=6442450951, two25_log=33554432, two25_log10=33554432, x=6442450964, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 60 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 74 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=60occurred 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, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 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 18:03:13,149 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:03:13,151 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:03:13,163 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:03:13,163 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:03:13,164 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:03:13,166 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:03:13,167 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:03:13,169 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:03:13,170 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:03:13,171 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:03:13,171 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:03:13,172 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:03:13,173 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:03:13,174 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:03:13,175 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:03:13,175 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:03:13,177 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:03:13,179 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:03:13,181 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:03:13,182 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:03:13,183 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:03:13,186 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:03:13,186 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:03:13,186 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:03:13,187 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:03:13,189 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:03:13,189 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:03:13,190 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:03:13,191 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:03:13,192 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:03:13,192 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:03:13,193 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:03:13,193 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:03:13,194 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:03:13,195 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:03:13,195 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 18:03:13,211 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:03:13,212 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:03:13,213 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:03:13,213 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:03:13,213 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:03:13,213 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:03:13,214 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:03:13,214 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:03:13,214 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:03:13,214 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:03:13,214 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:03:13,215 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:03:13,215 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:03:13,215 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:03:13,215 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 18:03:13,215 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 18:03:13,215 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:03:13,217 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:03:13,218 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:03:13,218 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:03:13,218 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:03:13,218 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:03:13,218 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:03:13,219 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:03:13,219 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:03:13,219 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:03:13,219 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:03:13,219 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:03:13,219 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 18:03:13,220 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:03:13,220 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 18:03:13,220 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 18:03:13,220 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 -> 43a504f2a78cd97f2f59239768b095c018a8cdcb [2018-11-28 18:03:13,292 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:03:13,314 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:03:13,318 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:03:13,320 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:03:13,320 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:03:13,321 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_0970b_true-unreach-call.c [2018-11-28 18:03:13,375 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fea6da12/8fb7b5dd5ce2452480c2702dc2854d81/FLAGb94bfb495 [2018-11-28 18:03:13,833 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:03:13,834 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_0970b_true-unreach-call.c [2018-11-28 18:03:13,844 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fea6da12/8fb7b5dd5ce2452480c2702dc2854d81/FLAGb94bfb495 [2018-11-28 18:03:14,187 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fea6da12/8fb7b5dd5ce2452480c2702dc2854d81 [2018-11-28 18:03:14,190 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:03:14,192 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:03:14,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:03:14,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:03:14,197 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:03:14,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:03:14" (1/1) ... [2018-11-28 18:03:14,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41a15a8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:14, skipping insertion in model container [2018-11-28 18:03:14,201 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:03:14" (1/1) ... [2018-11-28 18:03:14,209 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:03:14,238 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:03:14,522 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:03:14,530 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:03:14,629 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:03:14,666 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:03:14,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:14 WrapperNode [2018-11-28 18:03:14,666 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:03:14,667 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:03:14,668 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:03:14,668 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:03:14,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:14" (1/1) ... [2018-11-28 18:03:14,778 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:14" (1/1) ... [2018-11-28 18:03:14,796 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:03:14,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:03:14,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:03:14,797 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:03:14,809 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:14" (1/1) ... [2018-11-28 18:03:14,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:14" (1/1) ... [2018-11-28 18:03:14,820 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:14" (1/1) ... [2018-11-28 18:03:14,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:14" (1/1) ... [2018-11-28 18:03:14,868 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:14" (1/1) ... [2018-11-28 18:03:14,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:14" (1/1) ... [2018-11-28 18:03:14,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:14" (1/1) ... [2018-11-28 18:03:14,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:03:14,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:03:14,904 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:03:14,904 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:03:14,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:14" (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 18:03:14,998 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:03:14,998 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:03:14,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-28 18:03:15,000 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-28 18:03:15,000 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-28 18:03:15,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:03:15,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:03:15,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:03:15,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 18:03:15,001 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-11-28 18:03:15,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-11-28 18:03:15,001 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log10f [2018-11-28 18:03:15,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log10f [2018-11-28 18:03:15,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:03:15,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:03:15,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-28 18:03:15,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 18:03:15,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 18:03:16,505 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:03:26,950 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:03:28,008 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:03:29,848 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:03:29,900 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:03:29,900 INFO L280 CfgBuilder]: Removed 12 assue(true) statements. [2018-11-28 18:03:29,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:29 BoogieIcfgContainer [2018-11-28 18:03:29,901 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:03:29,902 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:03:29,902 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:03:29,905 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:03:29,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:03:14" (1/3) ... [2018-11-28 18:03:29,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71beb4fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:03:29, skipping insertion in model container [2018-11-28 18:03:29,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:03:14" (2/3) ... [2018-11-28 18:03:29,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71beb4fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:03:29, skipping insertion in model container [2018-11-28 18:03:29,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:29" (3/3) ... [2018-11-28 18:03:29,909 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970b_true-unreach-call.c [2018-11-28 18:03:29,920 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:03:29,929 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:03:29,949 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:03:29,984 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:03:29,985 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:03:29,985 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:03:29,986 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:03:29,986 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:03:29,986 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:03:29,986 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:03:29,986 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:03:29,986 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:03:30,008 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2018-11-28 18:03:30,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 18:03:30,016 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:30,017 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] [2018-11-28 18:03:30,020 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:30,026 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:30,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1442699168, now seen corresponding path program 1 times [2018-11-28 18:03:30,032 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:03:30,033 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) [2018-11-28 18:03:30,046 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-28 18:03:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:30,384 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:03:30,405 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 18:03:30,406 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:03:30,423 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:30,423 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:03:30,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:03:30,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:03:30,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:03:30,441 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 2 states. [2018-11-28 18:03:30,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:30,468 INFO L93 Difference]: Finished difference Result 110 states and 165 transitions. [2018-11-28 18:03:30,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:03:30,470 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-11-28 18:03:30,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:30,481 INFO L225 Difference]: With dead ends: 110 [2018-11-28 18:03:30,482 INFO L226 Difference]: Without dead ends: 55 [2018-11-28 18:03:30,485 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 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 18:03:30,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-11-28 18:03:30,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-11-28 18:03:30,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-11-28 18:03:30,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 69 transitions. [2018-11-28 18:03:30,534 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 69 transitions. Word has length 20 [2018-11-28 18:03:30,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:30,534 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 69 transitions. [2018-11-28 18:03:30,534 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:03:30,535 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 69 transitions. [2018-11-28 18:03:30,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 18:03:30,536 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:30,536 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] [2018-11-28 18:03:30,537 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:30,537 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:30,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1517079774, now seen corresponding path program 1 times [2018-11-28 18:03:30,539 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:03:30,539 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 18:03:30,549 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:30,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:30,946 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:03:31,208 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 18:03:31,210 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:03:31,232 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:31,232 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 18:03:31,234 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 18:03:31,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 18:03:31,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 18:03:31,235 INFO L87 Difference]: Start difference. First operand 55 states and 69 transitions. Second operand 6 states. [2018-11-28 18:03:33,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:33,633 INFO L93 Difference]: Finished difference Result 69 states and 82 transitions. [2018-11-28 18:03:33,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 18:03:33,635 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-11-28 18:03:33,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:33,639 INFO L225 Difference]: With dead ends: 69 [2018-11-28 18:03:33,640 INFO L226 Difference]: Without dead ends: 59 [2018-11-28 18:03:33,641 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-28 18:03:33,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-11-28 18:03:33,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 55. [2018-11-28 18:03:33,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-11-28 18:03:33,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 68 transitions. [2018-11-28 18:03:33,653 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 68 transitions. Word has length 21 [2018-11-28 18:03:33,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:33,653 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 68 transitions. [2018-11-28 18:03:33,653 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 18:03:33,654 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 68 transitions. [2018-11-28 18:03:33,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 18:03:33,655 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:33,655 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:03:33,655 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:33,656 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:33,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1264421054, now seen corresponding path program 1 times [2018-11-28 18:03:33,657 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:03:33,657 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 18:03:33,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:33,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:33,953 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:03:36,862 WARN L180 SmtUtils]: Spent 1.40 s on a formula simplification that was a NOOP. DAG size: 11 [2018-11-28 18:03:37,377 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 5 [2018-11-28 18:03:37,384 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 18:03:37,385 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:03:37,405 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:37,405 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-28 18:03:37,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 18:03:37,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 18:03:37,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-11-28 18:03:37,407 INFO L87 Difference]: Start difference. First operand 55 states and 68 transitions. Second operand 10 states. [2018-11-28 18:03:40,789 WARN L180 SmtUtils]: Spent 1.51 s on a formula simplification that was a NOOP. DAG size: 13 [2018-11-28 18:03:44,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:44,204 INFO L93 Difference]: Finished difference Result 66 states and 79 transitions. [2018-11-28 18:03:44,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 18:03:44,252 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-11-28 18:03:44,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:44,254 INFO L225 Difference]: With dead ends: 66 [2018-11-28 18:03:44,255 INFO L226 Difference]: Without dead ends: 59 [2018-11-28 18:03:44,255 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-11-28 18:03:44,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-11-28 18:03:44,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 55. [2018-11-28 18:03:44,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-11-28 18:03:44,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 67 transitions. [2018-11-28 18:03:44,270 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 67 transitions. Word has length 22 [2018-11-28 18:03:44,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:44,271 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 67 transitions. [2018-11-28 18:03:44,271 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 18:03:44,271 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 67 transitions. [2018-11-28 18:03:44,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 18:03:44,272 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:03:44,272 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 18:03:44,272 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:03:44,273 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:03:44,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1917312474, now seen corresponding path program 1 times [2018-11-28 18:03:44,273 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:03:44,273 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 18:03:44,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:03:44,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:03:44,365 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:03:44,482 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 18:03:44,483 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:03:44,497 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:03:44,497 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 18:03:44,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 18:03:44,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 18:03:44,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 18:03:44,500 INFO L87 Difference]: Start difference. First operand 55 states and 67 transitions. Second operand 6 states. [2018-11-28 18:03:45,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:03:45,402 INFO L93 Difference]: Finished difference Result 59 states and 71 transitions. [2018-11-28 18:03:45,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 18:03:45,405 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-11-28 18:03:45,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:03:45,405 INFO L225 Difference]: With dead ends: 59 [2018-11-28 18:03:45,405 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 18:03:45,406 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-28 18:03:45,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 18:03:45,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 18:03:45,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 18:03:45,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 18:03:45,408 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2018-11-28 18:03:45,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:03:45,408 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 18:03:45,408 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 18:03:45,408 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 18:03:45,409 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 18:03:45,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 18:03:45,883 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 20 [2018-11-28 18:03:46,018 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 145) no Hoare annotation was computed. [2018-11-28 18:03:46,018 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 145) the Hoare annotation is: true [2018-11-28 18:03:46,018 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 145) no Hoare annotation was computed. [2018-11-28 18:03:46,018 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:03:46,019 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:03:46,019 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:03:46,019 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 32) no Hoare annotation was computed. [2018-11-28 18:03:46,019 INFO L448 ceAbstractionStarter]: For program point L56(lines 56 72) no Hoare annotation was computed. [2018-11-28 18:03:46,019 INFO L448 ceAbstractionStarter]: For program point L85(lines 85 89) no Hoare annotation was computed. [2018-11-28 18:03:46,019 INFO L448 ceAbstractionStarter]: For program point L40-1(lines 40 44) no Hoare annotation was computed. [2018-11-28 18:03:46,019 INFO L451 ceAbstractionStarter]: At program point L40-2(lines 40 44) the Hoare annotation is: true [2018-11-28 18:03:46,020 INFO L451 ceAbstractionStarter]: At program point __ieee754_logfENTRY(lines 20 96) the Hoare annotation is: true [2018-11-28 18:03:46,020 INFO L448 ceAbstractionStarter]: For program point __ieee754_logfFINAL(lines 20 96) no Hoare annotation was computed. [2018-11-28 18:03:46,020 INFO L448 ceAbstractionStarter]: For program point L57(lines 57 64) no Hoare annotation was computed. [2018-11-28 18:03:46,020 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2018-11-28 18:03:46,020 INFO L451 ceAbstractionStarter]: At program point L24-2(lines 24 28) the Hoare annotation is: true [2018-11-28 18:03:46,020 INFO L448 ceAbstractionStarter]: For program point L24-3(lines 24 28) no Hoare annotation was computed. [2018-11-28 18:03:46,020 INFO L448 ceAbstractionStarter]: For program point L49-1(lines 49 53) no Hoare annotation was computed. [2018-11-28 18:03:46,021 INFO L451 ceAbstractionStarter]: At program point L49-2(lines 49 53) the Hoare annotation is: true [2018-11-28 18:03:46,021 INFO L448 ceAbstractionStarter]: For program point L49-3(lines 49 53) no Hoare annotation was computed. [2018-11-28 18:03:46,021 INFO L448 ceAbstractionStarter]: For program point L37(lines 37 45) no Hoare annotation was computed. [2018-11-28 18:03:46,021 INFO L448 ceAbstractionStarter]: For program point L37-1(lines 37 45) no Hoare annotation was computed. [2018-11-28 18:03:46,021 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 71) no Hoare annotation was computed. [2018-11-28 18:03:46,021 INFO L448 ceAbstractionStarter]: For program point L33(lines 33 34) no Hoare annotation was computed. [2018-11-28 18:03:46,021 INFO L448 ceAbstractionStarter]: For program point __ieee754_logfEXIT(lines 20 96) no Hoare annotation was computed. [2018-11-28 18:03:46,021 INFO L448 ceAbstractionStarter]: For program point L91(lines 91 94) no Hoare annotation was computed. [2018-11-28 18:03:46,022 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 63) no Hoare annotation was computed. [2018-11-28 18:03:46,022 INFO L448 ceAbstractionStarter]: For program point L83(lines 83 95) no Hoare annotation was computed. [2018-11-28 18:03:46,022 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 36) no Hoare annotation was computed. [2018-11-28 18:03:46,022 INFO L448 ceAbstractionStarter]: For program point L122(lines 122 130) no Hoare annotation was computed. [2018-11-28 18:03:46,022 INFO L448 ceAbstractionStarter]: For program point L122-1(lines 122 130) no Hoare annotation was computed. [2018-11-28 18:03:46,022 INFO L448 ceAbstractionStarter]: For program point L118(lines 118 119) no Hoare annotation was computed. [2018-11-28 18:03:46,023 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 135 139) no Hoare annotation was computed. [2018-11-28 18:03:46,023 INFO L444 ceAbstractionStarter]: At program point L135-2(lines 135 139) the Hoare annotation is: (or (exists ((__ieee754_log10f_~hx~0 (_ BitVec 32))) (and (not (bvslt __ieee754_log10f_~hx~0 (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_log10f_~hx~0) ((_ extract 30 23) __ieee754_log10f_~hx~0) ((_ extract 22 0) __ieee754_log10f_~hx~0)) |__ieee754_log10f_#in~x|))) (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero~0))) [2018-11-28 18:03:46,023 INFO L444 ceAbstractionStarter]: At program point L135-3(lines 135 139) the Hoare annotation is: (or (exists ((__ieee754_log10f_~hx~0 (_ BitVec 32))) (and (not (bvslt __ieee754_log10f_~hx~0 (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_log10f_~hx~0) ((_ extract 30 23) __ieee754_log10f_~hx~0) ((_ extract 22 0) __ieee754_log10f_~hx~0)) |__ieee754_log10f_#in~x|))) (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero~0))) [2018-11-28 18:03:46,023 INFO L448 ceAbstractionStarter]: For program point L140(line 140) no Hoare annotation was computed. [2018-11-28 18:03:46,024 INFO L451 ceAbstractionStarter]: At program point __ieee754_log10fENTRY(lines 105 142) the Hoare annotation is: true [2018-11-28 18:03:46,024 INFO L448 ceAbstractionStarter]: For program point __ieee754_log10fEXIT(lines 105 142) no Hoare annotation was computed. [2018-11-28 18:03:46,024 INFO L448 ceAbstractionStarter]: For program point __ieee754_log10fFINAL(lines 105 142) no Hoare annotation was computed. [2018-11-28 18:03:46,024 INFO L448 ceAbstractionStarter]: For program point L120(lines 120 121) no Hoare annotation was computed. [2018-11-28 18:03:46,024 INFO L448 ceAbstractionStarter]: For program point L116(lines 116 117) no Hoare annotation was computed. [2018-11-28 18:03:46,024 INFO L448 ceAbstractionStarter]: For program point L125-1(lines 125 129) no Hoare annotation was computed. [2018-11-28 18:03:46,025 INFO L444 ceAbstractionStarter]: At program point L125-2(lines 125 129) the Hoare annotation is: (or (and (= (fp ((_ extract 31 31) __ieee754_log10f_~hx~0) ((_ extract 30 23) __ieee754_log10f_~hx~0) ((_ extract 22 0) __ieee754_log10f_~hx~0)) |__ieee754_log10f_#in~x|) (exists ((__ieee754_log10f_~hx~0 (_ BitVec 32))) (and (not (bvslt __ieee754_log10f_~hx~0 (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_log10f_~hx~0) ((_ extract 30 23) __ieee754_log10f_~hx~0) ((_ extract 22 0) __ieee754_log10f_~hx~0)) |__ieee754_log10f_#in~x|)))) (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero~0))) [2018-11-28 18:03:46,025 INFO L448 ceAbstractionStarter]: For program point L109-1(lines 109 113) no Hoare annotation was computed. [2018-11-28 18:03:46,025 INFO L444 ceAbstractionStarter]: At program point L109-2(lines 109 113) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero~0)) (= |__ieee754_log10f_#in~x| __ieee754_log10f_~x)) [2018-11-28 18:03:46,026 INFO L448 ceAbstractionStarter]: For program point L109-3(lines 109 113) no Hoare annotation was computed. [2018-11-28 18:03:46,026 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:03:46,026 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero~0) [2018-11-28 18:03:46,026 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:03:46,026 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:03:46,026 INFO L448 ceAbstractionStarter]: For program point L159(line 159) no Hoare annotation was computed. [2018-11-28 18:03:46,026 INFO L444 ceAbstractionStarter]: At program point L158(line 158) the Hoare annotation is: (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)))) (or (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (and (= main_~res~0 (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse0 .cse0) .cse1)) (= main_~x~0 .cse0))) (not (= .cse1 ~zero~0)))) [2018-11-28 18:03:46,027 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 147 164) the Hoare annotation is: true [2018-11-28 18:03:46,027 INFO L448 ceAbstractionStarter]: For program point L158-1(lines 158 161) no Hoare annotation was computed. [2018-11-28 18:03:46,027 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 147 164) no Hoare annotation was computed. [2018-11-28 18:03:46,027 INFO L444 ceAbstractionStarter]: At program point L155(line 155) the Hoare annotation is: (or (= main_~x~0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero~0))) [2018-11-28 18:03:46,027 INFO L448 ceAbstractionStarter]: For program point L155-1(line 155) no Hoare annotation was computed. [2018-11-28 18:03:46,028 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 159) no Hoare annotation was computed. [2018-11-28 18:03:46,028 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 147 164) no Hoare annotation was computed. [2018-11-28 18:03:46,036 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,038 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,038 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,039 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,042 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 18:03:46,045 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,045 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,045 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,048 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,048 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 18:03:46,050 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 18:03:46,050 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 18:03:46,057 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,057 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,057 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,058 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,058 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 18:03:46,059 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,059 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,059 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,059 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,060 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 18:03:46,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:03:46 BoogieIcfgContainer [2018-11-28 18:03:46,065 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:03:46,067 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:03:46,067 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:03:46,067 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:03:46,068 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:03:29" (3/4) ... [2018-11-28 18:03:46,075 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 18:03:46,083 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-28 18:03:46,083 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 18:03:46,083 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_logf [2018-11-28 18:03:46,083 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_log10f [2018-11-28 18:03:46,084 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 18:03:46,092 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 42 nodes and edges [2018-11-28 18:03:46,093 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2018-11-28 18:03:46,094 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 18:03:46,095 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 18:03:46,125 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero) || \old(x) == x [2018-11-28 18:03:46,126 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x) && (\exists __ieee754_log10f_~hx~0 : bv32 :: !~bvslt32(__ieee754_log10f_~hx~0, 0bv32) && ~fp~LONGDOUBLE(__ieee754_log10f_~hx~0[31:31], __ieee754_log10f_~hx~0[30:23], __ieee754_log10f_~hx~0[22:0]) == \old(x))) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero) [2018-11-28 18:03:46,126 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists __ieee754_log10f_~hx~0 : bv32 :: !~bvslt32(__ieee754_log10f_~hx~0, 0bv32) && ~fp~LONGDOUBLE(__ieee754_log10f_~hx~0[31:31], __ieee754_log10f_~hx~0[30:23], __ieee754_log10f_~hx~0[22:0]) == \old(x)) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero) [2018-11-28 18:03:46,179 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 18:03:46,179 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:03:46,180 INFO L168 Benchmark]: Toolchain (without parser) took 31989.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 79.2 MB). Free memory was 951.3 MB in the beginning and 847.2 MB in the end (delta: 104.1 MB). Peak memory consumption was 183.3 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:46,182 INFO L168 Benchmark]: CDTParser took 0.16 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 18:03:46,182 INFO L168 Benchmark]: CACSL2BoogieTranslator took 473.90 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 935.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:46,183 INFO L168 Benchmark]: Boogie Procedure Inliner took 129.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 79.2 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -124.8 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:46,183 INFO L168 Benchmark]: Boogie Preprocessor took 106.68 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:03:46,185 INFO L168 Benchmark]: RCFGBuilder took 14997.32 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: 35.3 MB). Peak memory consumption was 35.3 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:46,185 INFO L168 Benchmark]: TraceAbstraction took 16163.36 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 854.2 MB in the end (delta: 170.5 MB). Peak memory consumption was 170.5 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:46,187 INFO L168 Benchmark]: Witness Printer took 112.09 ms. Allocated memory is still 1.1 GB. Free memory was 854.2 MB in the beginning and 847.2 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-11-28 18:03:46,191 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 473.90 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 935.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 129.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 79.2 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -124.8 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 106.68 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 14997.32 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: 35.3 MB). Peak memory consumption was 35.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 16163.36 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 854.2 MB in the end (delta: 170.5 MB). Peak memory consumption was 170.5 MB. Max. memory is 11.5 GB. * Witness Printer took 112.09 ms. Allocated memory is still 1.1 GB. Free memory was 854.2 MB in the beginning and 847.2 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 159]: 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: 49]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 135]: Loop Invariant [2018-11-28 18:03:46,206 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,206 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,206 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,207 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,207 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 18:03:46,207 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,207 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,210 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,210 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,210 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\exists __ieee754_log10f_~hx~0 : bv32 :: !~bvslt32(__ieee754_log10f_~hx~0, 0bv32) && ~fp~LONGDOUBLE(__ieee754_log10f_~hx~0[31:31], __ieee754_log10f_~hx~0[30:23], __ieee754_log10f_~hx~0[22:0]) == \old(x)) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero) - InvariantResult [Line: 109]: Loop Invariant [2018-11-28 18:03:46,211 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 18:03:46,211 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero) || \old(x) == x - InvariantResult [Line: 125]: Loop Invariant [2018-11-28 18:03:46,211 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,212 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,212 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,212 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,212 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-28 18:03:46,218 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,218 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,218 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,219 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-28 18:03:46,219 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x) && (\exists __ieee754_log10f_~hx~0 : bv32 :: !~bvslt32(__ieee754_log10f_~hx~0, 0bv32) && ~fp~LONGDOUBLE(__ieee754_log10f_~hx~0[31:31], __ieee754_log10f_~hx~0[30:23], __ieee754_log10f_~hx~0[22:0]) == \old(x))) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 59 locations, 1 error locations. SAFE Result, 16.0s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 10.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.6s HoareAnnotationTime, HoareTripleCheckerStatistics: 243 SDtfs, 117 SDslu, 782 SDs, 0 SdLazy, 155 SolverSat, 12 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 6.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 6.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred 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, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 23 PreInvPairs, 32 NumberOfFragments, 156 HoareAnnotationTreeSize, 23 FomulaSimplifications, 45 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 16 FomulaSimplificationsInter, 111 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 82 ConstructedInterpolants, 5 QuantifiedInterpolants, 8678 SizeOfPredicates, 11 NumberOfNonLiveVariables, 406 ConjunctsInSsa, 27 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...