./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/float_req_bl_0610_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_0610_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 95131fbb90a45f134b236581750b2f1a3cba4d8c .............................................................................................................................................................................................................................................................................................................................................. 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_0610_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 95131fbb90a45f134b236581750b2f1a3cba4d8c ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 17:58:22,539 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:58:22,541 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:58:22,554 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:58:22,555 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:58:22,556 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:58:22,558 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:58:22,560 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:58:22,563 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:58:22,565 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:58:22,566 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:58:22,566 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:58:22,567 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:58:22,568 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:58:22,569 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:58:22,571 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:58:22,572 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:58:22,581 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:58:22,588 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:58:22,589 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:58:22,590 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:58:22,595 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:58:22,601 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:58:22,601 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:58:22,601 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:58:22,602 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:58:22,604 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:58:22,605 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:58:22,605 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:58:22,607 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:58:22,607 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:58:22,608 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:58:22,608 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:58:22,608 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:58:22,609 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:58:22,610 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:58:22,610 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 17:58:22,627 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:58:22,628 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:58:22,629 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:58:22,629 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:58:22,629 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:58:22,630 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:58:22,630 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:58:22,631 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:58:22,631 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:58:22,631 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 17:58:22,631 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:58:22,631 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:58:22,632 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:58:22,632 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:58:22,632 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:58:22,632 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:58:22,632 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:58:22,632 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:58:22,634 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:58:22,634 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:58:22,634 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:58:22,635 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:58:22,635 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:58:22,635 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:58:22,636 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:58:22,636 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:58:22,636 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:58:22,636 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 17:58:22,636 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:58:22,636 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 17:58:22,637 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 -> 95131fbb90a45f134b236581750b2f1a3cba4d8c [2018-11-28 17:58:22,675 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:58:22,693 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:58:22,700 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:58:22,702 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:58:22,702 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:58:22,703 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_0610_true-unreach-call.c [2018-11-28 17:58:22,776 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2294928b/c85ad43cece3417e930c684820a55d8a/FLAGead9875bb [2018-11-28 17:58:23,306 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:58:23,307 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_0610_true-unreach-call.c [2018-11-28 17:58:23,316 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2294928b/c85ad43cece3417e930c684820a55d8a/FLAGead9875bb [2018-11-28 17:58:23,646 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2294928b/c85ad43cece3417e930c684820a55d8a [2018-11-28 17:58:23,649 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:58:23,650 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:58:23,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:58:23,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:58:23,655 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:58:23,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:58:23" (1/1) ... [2018-11-28 17:58:23,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3be60b85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:23, skipping insertion in model container [2018-11-28 17:58:23,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:58:23" (1/1) ... [2018-11-28 17:58:23,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:58:23,693 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:58:23,934 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:58:23,953 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:58:24,015 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:58:24,046 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:58:24,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:24 WrapperNode [2018-11-28 17:58:24,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:58:24,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:58:24,048 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:58:24,048 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:58:24,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:24" (1/1) ... [2018-11-28 17:58:24,068 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:24" (1/1) ... [2018-11-28 17:58:24,078 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:58:24,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:58:24,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:58:24,078 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:58:24,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:24" (1/1) ... [2018-11-28 17:58:24,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:24" (1/1) ... [2018-11-28 17:58:24,169 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:24" (1/1) ... [2018-11-28 17:58:24,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:24" (1/1) ... [2018-11-28 17:58:24,189 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:24" (1/1) ... [2018-11-28 17:58:24,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:24" (1/1) ... [2018-11-28 17:58:24,200 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:24" (1/1) ... [2018-11-28 17:58:24,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:58:24,204 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:58:24,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:58:24,205 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:58:24,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:24" (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 17:58:24,265 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:58:24,265 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:58:24,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 17:58:24,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 17:58:24,265 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-28 17:58:24,266 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-28 17:58:24,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:58:24,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:58:24,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 17:58:24,266 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-28 17:58:24,266 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-28 17:58:24,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 17:58:24,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:58:24,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:58:24,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 17:58:24,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2018-11-28 17:58:24,267 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-11-28 17:58:24,267 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-11-28 17:58:24,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 17:58:24,913 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:58:24,914 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 17:58:24,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:58:24 BoogieIcfgContainer [2018-11-28 17:58:24,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:58:24,915 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:58:24,915 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:58:24,919 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:58:24,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:58:23" (1/3) ... [2018-11-28 17:58:24,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9419a3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:58:24, skipping insertion in model container [2018-11-28 17:58:24,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:24" (2/3) ... [2018-11-28 17:58:24,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9419a3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:58:24, skipping insertion in model container [2018-11-28 17:58:24,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:58:24" (3/3) ... [2018-11-28 17:58:24,922 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610_true-unreach-call.c [2018-11-28 17:58:24,932 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:58:24,939 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:58:24,958 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:58:24,987 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:58:24,988 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:58:24,988 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:58:24,988 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:58:24,988 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:58:24,989 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:58:24,989 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:58:24,989 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:58:24,989 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:58:25,010 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-11-28 17:58:25,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 17:58:25,017 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:58:25,018 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 17:58:25,020 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:58:25,025 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:58:25,025 INFO L82 PathProgramCache]: Analyzing trace with hash -267524796, now seen corresponding path program 1 times [2018-11-28 17:58:25,027 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:58:25,027 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:58:25,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:58:25,079 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:58:25,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:58:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:58:25,239 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 17:58:25,241 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:58:25,243 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 17:58:25,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 17:58:25,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 17:58:25,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:58:25,263 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2018-11-28 17:58:25,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:58:25,289 INFO L93 Difference]: Finished difference Result 92 states and 127 transitions. [2018-11-28 17:58:25,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 17:58:25,290 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-28 17:58:25,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:58:25,301 INFO L225 Difference]: With dead ends: 92 [2018-11-28 17:58:25,302 INFO L226 Difference]: Without dead ends: 46 [2018-11-28 17:58:25,307 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 17:58:25,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-11-28 17:58:25,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-11-28 17:58:25,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-11-28 17:58:25,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 56 transitions. [2018-11-28 17:58:25,355 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 56 transitions. Word has length 22 [2018-11-28 17:58:25,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:58:25,355 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 56 transitions. [2018-11-28 17:58:25,355 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 17:58:25,356 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2018-11-28 17:58:25,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 17:58:25,357 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:58:25,357 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 17:58:25,357 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:58:25,359 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:58:25,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1940744156, now seen corresponding path program 1 times [2018-11-28 17:58:25,359 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:58:25,359 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:58:25,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:58:25,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:58:25,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:58:25,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:58:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:58:25,484 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 17:58:25,521 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450955 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-11-28 17:58:25,523 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450965 could not be translated for associated CType ARRAY#_11_~FLOAT# [2018-11-28 17:58:25,523 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450964 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-11-28 17:58:25,524 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450950 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-11-28 17:58:25,524 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450960 could not be translated for associated CType ARRAY#_11_~FLOAT# [2018-11-28 17:58:25,525 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450962 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-11-28 17:58:25,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:58:25 BoogieIcfgContainer [2018-11-28 17:58:25,543 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:58:25,543 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:58:25,543 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:58:25,543 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:58:25,545 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:58:24" (3/4) ... [2018-11-28 17:58:25,550 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 17:58:25,550 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:58:25,551 INFO L168 Benchmark]: Toolchain (without parser) took 1901.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -111.6 MB). Peak memory consumption was 16.9 MB. Max. memory is 11.5 GB. [2018-11-28 17:58:25,554 INFO L168 Benchmark]: CDTParser took 0.45 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 17:58:25,555 INFO L168 Benchmark]: CACSL2BoogieTranslator took 395.84 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 17:58:25,556 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.23 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:58:25,556 INFO L168 Benchmark]: Boogie Preprocessor took 126.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -181.7 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-11-28 17:58:25,557 INFO L168 Benchmark]: RCFGBuilder took 709.90 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: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2018-11-28 17:58:25,558 INFO L168 Benchmark]: TraceAbstraction took 627.51 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 17:58:25,559 INFO L168 Benchmark]: Witness Printer took 6.76 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 17:58:25,564 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 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 395.84 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 30.23 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 126.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -181.7 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 709.90 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: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 627.51 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 6.76 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450955 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450965 could not be translated for associated CType ARRAY#_11_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450964 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450950 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450960 could not be translated for associated CType ARRAY#_11_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450962 could not be translated for associated CType ARRAY#_4_~FLOAT# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 132]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 15, overapproximation of someUnaryDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 65, overapproximation of someBinaryArithmeticFLOAToperation at line 68. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; [L32-L37] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L39-L44] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L46-L50] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L52-L54] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; VAL [\old(aT_atan)=null, \old(aT_atan)=null, \old(atanhi_atan)=null, \old(atanhi_atan)=null, \old(atanlo_atan)=null, \old(atanlo_atan)=null, \old(huge_atan)=6442450957, \old(huge_floor)=6442450952, \old(one_atan)=6442450944, \old(pi)=6442450953, \old(pi_o_2)=6442450945, \old(pi_o_4)=6442450949, aT_atan={6442450961:0}, atanhi_atan={6442450963:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L127] float x = 0.0f / 0.0f; VAL [aT_atan={6442450961:0}, atanhi_atan={6442450963:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L128] CALL, EXPR atan_float(x) VAL [\old(x)=6442450951, aT_atan={6442450961:0}, atanhi_atan={6442450963:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L57] float w, s1, s2, z; [L58] __int32_t ix, hx, id; VAL [\old(x)=6442450951, aT_atan={6442450961:0}, atanhi_atan={6442450963:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=6442450951] [L61] ieee_float_shape_type gf_u; [L62] gf_u.value = (x) [L63] EXPR gf_u.word [L63] (hx) = gf_u.word [L65] ix = hx & 0x7fffffff VAL [\old(x)=6442450951, aT_atan={6442450961:0}, atanhi_atan={6442450963:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=2147483647, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=6442450951] [L66] COND TRUE ix >= 0x50800000 VAL [\old(x)=6442450951, aT_atan={6442450961:0}, atanhi_atan={6442450963:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=2147483647, ix=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=6442450951] [L67] COND TRUE ((ix) > 0x7f800000L) [L68] return x + x; VAL [\old(x)=6442450951, aT_atan={6442450961:0}, atanhi_atan={6442450963:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=2147483647, ix=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=6442450951] [L128] RET, EXPR atan_float(x) VAL [aT_atan={6442450961:0}, atan_float(x)=6442450959, atanhi_atan={6442450963:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=6442450951] [L128] float res = atan_float(x); [L131] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450959, aT_atan={6442450961:0}, atanhi_atan={6442450963:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L15] return x != x; VAL [\old(x)=6442450959, \result=0, aT_atan={6442450961:0}, atanhi_atan={6442450963:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=6442450959] [L131] RET, EXPR isnan_float(res) VAL [aT_atan={6442450961:0}, atanhi_atan={6442450963:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, isnan_float(res)=0, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=6442450959, x=6442450951] [L131] COND TRUE !isnan_float(res) [L132] __VERIFIER_error() VAL [aT_atan={6442450961:0}, atanhi_atan={6442450963:0}, atanlo_atan={6442450946:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=6442450959, x=6442450951] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 50 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 60 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=50occurred 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, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 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 17:58:27,973 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:58:27,974 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:58:27,987 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:58:27,987 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:58:27,989 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:58:27,990 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:58:27,993 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:58:27,995 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:58:27,995 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:58:27,996 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:58:27,997 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:58:27,998 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:58:27,999 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:58:28,000 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:58:28,001 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:58:28,002 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:58:28,004 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:58:28,007 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:58:28,008 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:58:28,010 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:58:28,011 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:58:28,014 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:58:28,015 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:58:28,015 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:58:28,016 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:58:28,017 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:58:28,018 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:58:28,019 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:58:28,020 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:58:28,021 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:58:28,022 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:58:28,022 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:58:28,022 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:58:28,024 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:58:28,025 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:58:28,025 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 17:58:28,042 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:58:28,043 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:58:28,044 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:58:28,044 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:58:28,045 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:58:28,045 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:58:28,045 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:58:28,046 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:58:28,046 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:58:28,046 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:58:28,046 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:58:28,046 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:58:28,047 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:58:28,047 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:58:28,048 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 17:58:28,048 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 17:58:28,048 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:58:28,048 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:58:28,049 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:58:28,049 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:58:28,049 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:58:28,049 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:58:28,049 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:58:28,051 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:58:28,051 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:58:28,051 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:58:28,051 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:58:28,051 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:58:28,052 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 17:58:28,052 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:58:28,052 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 17:58:28,052 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 17:58:28,052 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 -> 95131fbb90a45f134b236581750b2f1a3cba4d8c [2018-11-28 17:58:28,097 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:58:28,111 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:58:28,115 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:58:28,116 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:58:28,117 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:58:28,117 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_0610_true-unreach-call.c [2018-11-28 17:58:28,181 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77108c5c8/d90602ed1e194ea59195096489cbb6dd/FLAG06be51667 [2018-11-28 17:58:28,700 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:58:28,701 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_0610_true-unreach-call.c [2018-11-28 17:58:28,710 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77108c5c8/d90602ed1e194ea59195096489cbb6dd/FLAG06be51667 [2018-11-28 17:58:29,020 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77108c5c8/d90602ed1e194ea59195096489cbb6dd [2018-11-28 17:58:29,025 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:58:29,027 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:58:29,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:58:29,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:58:29,035 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:58:29,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:58:29" (1/1) ... [2018-11-28 17:58:29,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23bd9284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:29, skipping insertion in model container [2018-11-28 17:58:29,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:58:29" (1/1) ... [2018-11-28 17:58:29,051 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:58:29,078 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:58:29,417 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:58:29,430 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:58:29,497 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:58:29,556 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:58:29,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:29 WrapperNode [2018-11-28 17:58:29,557 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:58:29,558 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:58:29,558 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:58:29,558 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:58:29,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:29" (1/1) ... [2018-11-28 17:58:29,657 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:29" (1/1) ... [2018-11-28 17:58:29,665 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:58:29,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:58:29,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:58:29,666 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:58:29,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:29" (1/1) ... [2018-11-28 17:58:29,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:29" (1/1) ... [2018-11-28 17:58:29,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:29" (1/1) ... [2018-11-28 17:58:29,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:29" (1/1) ... [2018-11-28 17:58:29,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:29" (1/1) ... [2018-11-28 17:58:29,715 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:29" (1/1) ... [2018-11-28 17:58:29,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:29" (1/1) ... [2018-11-28 17:58:29,731 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:58:29,732 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:58:29,735 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:58:29,735 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:58:29,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:29" (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 17:58:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2018-11-28 17:58:29,803 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:58:29,803 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:58:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-28 17:58:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-28 17:58:29,804 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-28 17:58:29,804 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:58:29,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:58:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-28 17:58:29,805 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-28 17:58:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 17:58:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 17:58:29,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:58:29,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:58:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-28 17:58:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-11-28 17:58:29,806 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-11-28 17:58:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 17:58:29,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 17:58:30,270 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:58:30,324 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:58:39,535 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:58:39,590 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:58:39,590 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 17:58:39,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:58:39 BoogieIcfgContainer [2018-11-28 17:58:39,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:58:39,592 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:58:39,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:58:39,595 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:58:39,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:58:29" (1/3) ... [2018-11-28 17:58:39,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77761969 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:58:39, skipping insertion in model container [2018-11-28 17:58:39,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:58:29" (2/3) ... [2018-11-28 17:58:39,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77761969 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:58:39, skipping insertion in model container [2018-11-28 17:58:39,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:58:39" (3/3) ... [2018-11-28 17:58:39,599 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610_true-unreach-call.c [2018-11-28 17:58:39,610 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:58:39,619 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:58:39,638 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:58:39,671 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:58:39,672 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:58:39,673 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:58:39,673 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:58:39,673 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:58:39,673 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:58:39,673 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:58:39,673 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:58:39,674 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:58:39,693 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2018-11-28 17:58:39,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 17:58:39,701 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:58:39,702 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 17:58:39,705 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:58:39,711 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:58:39,711 INFO L82 PathProgramCache]: Analyzing trace with hash -2011394559, now seen corresponding path program 1 times [2018-11-28 17:58:39,717 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:58:39,718 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-28 17:58:39,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:58:39,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:58:39,945 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:58:39,968 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 17:58:39,968 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:58:39,989 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:58:39,989 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 17:58:39,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 17:58:40,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 17:58:40,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:58:40,015 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 2 states. [2018-11-28 17:58:40,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:58:40,044 INFO L93 Difference]: Finished difference Result 90 states and 125 transitions. [2018-11-28 17:58:40,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 17:58:40,046 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-28 17:58:40,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:58:40,057 INFO L225 Difference]: With dead ends: 90 [2018-11-28 17:58:40,057 INFO L226 Difference]: Without dead ends: 45 [2018-11-28 17:58:40,061 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 17:58:40,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-11-28 17:58:40,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-11-28 17:58:40,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-28 17:58:40,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 55 transitions. [2018-11-28 17:58:40,105 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 55 transitions. Word has length 21 [2018-11-28 17:58:40,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:58:40,106 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 55 transitions. [2018-11-28 17:58:40,106 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 17:58:40,106 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2018-11-28 17:58:40,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 17:58:40,108 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:58:40,108 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 17:58:40,108 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:58:40,109 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:58:40,109 INFO L82 PathProgramCache]: Analyzing trace with hash -241679196, now seen corresponding path program 1 times [2018-11-28 17:58:40,110 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:58:40,110 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 17:58:40,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:58:40,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:58:40,366 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:58:40,728 WARN L180 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-11-28 17:58:41,384 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 17:58:41,384 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:58:41,401 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:58:41,401 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 17:58:41,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 17:58:41,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 17:58:41,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-28 17:58:41,404 INFO L87 Difference]: Start difference. First operand 45 states and 55 transitions. Second operand 9 states. [2018-11-28 17:58:42,145 WARN L180 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-11-28 17:58:55,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:58:55,155 INFO L93 Difference]: Finished difference Result 55 states and 65 transitions. [2018-11-28 17:58:55,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 17:58:55,216 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-11-28 17:58:55,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:58:55,219 INFO L225 Difference]: With dead ends: 55 [2018-11-28 17:58:55,220 INFO L226 Difference]: Without dead ends: 48 [2018-11-28 17:58:55,221 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-28 17:58:55,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-11-28 17:58:55,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 45. [2018-11-28 17:58:55,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-11-28 17:58:55,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 54 transitions. [2018-11-28 17:58:55,234 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 54 transitions. Word has length 22 [2018-11-28 17:58:55,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:58:55,234 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 54 transitions. [2018-11-28 17:58:55,234 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 17:58:55,235 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2018-11-28 17:58:55,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 17:58:55,236 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:58:55,236 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 17:58:55,236 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:58:55,237 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:58:55,237 INFO L82 PathProgramCache]: Analyzing trace with hash -922712612, now seen corresponding path program 1 times [2018-11-28 17:58:55,237 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:58:55,238 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 17:58:55,244 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:58:55,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:58:55,411 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:58:55,665 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 17:58:55,665 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:58:55,678 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:58:55,679 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 17:58:55,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 17:58:55,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 17:58:55,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-11-28 17:58:55,681 INFO L87 Difference]: Start difference. First operand 45 states and 54 transitions. Second operand 8 states. [2018-11-28 17:58:56,464 WARN L180 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 23 [2018-11-28 17:59:09,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:59:09,426 INFO L93 Difference]: Finished difference Result 59 states and 67 transitions. [2018-11-28 17:59:09,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 17:59:09,491 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-11-28 17:59:09,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:59:09,493 INFO L225 Difference]: With dead ends: 59 [2018-11-28 17:59:09,493 INFO L226 Difference]: Without dead ends: 47 [2018-11-28 17:59:09,495 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-11-28 17:59:09,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-28 17:59:09,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 43. [2018-11-28 17:59:09,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-28 17:59:09,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2018-11-28 17:59:09,503 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 23 [2018-11-28 17:59:09,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:59:09,503 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2018-11-28 17:59:09,503 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 17:59:09,503 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2018-11-28 17:59:09,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-28 17:59:09,504 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:59:09,505 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:59:09,505 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:59:09,505 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:59:09,505 INFO L82 PathProgramCache]: Analyzing trace with hash 271683777, now seen corresponding path program 1 times [2018-11-28 17:59:09,506 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:59:09,506 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 17:59:09,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:59:09,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:59:09,675 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:59:09,830 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 17:59:09,831 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:59:09,847 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:59:09,848 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 17:59:09,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 17:59:09,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 17:59:09,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 17:59:09,850 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand 7 states. [2018-11-28 17:59:19,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:59:19,854 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2018-11-28 17:59:19,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 17:59:19,917 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-28 17:59:19,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:59:19,918 INFO L225 Difference]: With dead ends: 54 [2018-11-28 17:59:19,918 INFO L226 Difference]: Without dead ends: 44 [2018-11-28 17:59:19,919 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-28 17:59:19,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-28 17:59:19,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 43. [2018-11-28 17:59:19,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-28 17:59:19,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2018-11-28 17:59:19,927 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 24 [2018-11-28 17:59:19,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:59:19,927 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2018-11-28 17:59:19,927 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 17:59:19,928 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2018-11-28 17:59:19,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 17:59:19,928 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:59:19,930 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:59:19,930 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:59:19,930 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:59:19,931 INFO L82 PathProgramCache]: Analyzing trace with hash 381736159, now seen corresponding path program 1 times [2018-11-28 17:59:19,931 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:59:19,931 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-28 17:59:19,937 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:59:20,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:59:21,103 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:59:21,226 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 17:59:21,226 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:59:21,256 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:59:21,257 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 17:59:21,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 17:59:21,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 17:59:21,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 17:59:21,258 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand 7 states. [2018-11-28 17:59:30,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:59:30,154 INFO L93 Difference]: Finished difference Result 58 states and 65 transitions. [2018-11-28 17:59:30,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 17:59:30,220 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2018-11-28 17:59:30,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:59:30,221 INFO L225 Difference]: With dead ends: 58 [2018-11-28 17:59:30,221 INFO L226 Difference]: Without dead ends: 39 [2018-11-28 17:59:30,222 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-28 17:59:30,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-28 17:59:30,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-11-28 17:59:30,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-28 17:59:30,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2018-11-28 17:59:30,229 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 26 [2018-11-28 17:59:30,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:59:30,229 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2018-11-28 17:59:30,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 17:59:30,229 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2018-11-28 17:59:30,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-28 17:59:30,231 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:59:30,232 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:59:30,232 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:59:30,232 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:59:30,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1470196705, now seen corresponding path program 1 times [2018-11-28 17:59:30,233 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:59:30,233 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-28 17:59:30,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:59:31,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:59:31,689 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:59:31,827 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 17:59:31,828 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:59:31,862 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:59:31,863 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 17:59:31,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 17:59:31,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 17:59:31,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 17:59:31,864 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 7 states. [2018-11-28 17:59:38,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:59:38,439 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2018-11-28 17:59:38,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 17:59:38,441 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 36 [2018-11-28 17:59:38,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:59:38,442 INFO L225 Difference]: With dead ends: 39 [2018-11-28 17:59:38,442 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 17:59:38,444 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-28 17:59:38,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 17:59:38,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 17:59:38,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 17:59:38,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 17:59:38,446 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2018-11-28 17:59:38,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:59:38,446 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 17:59:38,447 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 17:59:38,447 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 17:59:38,447 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 17:59:38,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 17:59:38,735 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 15) no Hoare annotation was computed. [2018-11-28 17:59:38,735 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 15) the Hoare annotation is: true [2018-11-28 17:59:38,736 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 15) no Hoare annotation was computed. [2018-11-28 17:59:38,736 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:59:38,736 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:59:38,736 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:59:38,736 INFO L448 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 17 30) no Hoare annotation was computed. [2018-11-28 17:59:38,736 INFO L448 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 17 30) no Hoare annotation was computed. [2018-11-28 17:59:38,737 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 28) no Hoare annotation was computed. [2018-11-28 17:59:38,737 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 17 30) no Hoare annotation was computed. [2018-11-28 17:59:38,737 INFO L451 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 17 30) the Hoare annotation is: true [2018-11-28 17:59:38,737 INFO L448 ceAbstractionStarter]: For program point L24-2(lines 24 28) no Hoare annotation was computed. [2018-11-28 17:59:38,737 INFO L448 ceAbstractionStarter]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2018-11-28 17:59:38,737 INFO L451 ceAbstractionStarter]: At program point L19-2(lines 19 23) the Hoare annotation is: true [2018-11-28 17:59:38,737 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:59:38,738 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 17:59:38,739 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:59:38,739 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:59:38,739 INFO L444 ceAbstractionStarter]: At program point L128(line 128) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2018-11-28 17:59:38,739 INFO L448 ceAbstractionStarter]: For program point L128-1(line 128) no Hoare annotation was computed. [2018-11-28 17:59:38,739 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 120 137) the Hoare annotation is: true [2018-11-28 17:59:38,739 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 120 137) no Hoare annotation was computed. [2018-11-28 17:59:38,741 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 132) no Hoare annotation was computed. [2018-11-28 17:59:38,741 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 120 137) no Hoare annotation was computed. [2018-11-28 17:59:38,741 INFO L448 ceAbstractionStarter]: For program point L132(line 132) no Hoare annotation was computed. [2018-11-28 17:59:38,741 INFO L444 ceAbstractionStarter]: At program point L131(line 131) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~res~0 (fp.add roundNearestTiesToEven .cse0 .cse0)) (= main_~x~0 .cse0))) [2018-11-28 17:59:38,741 INFO L448 ceAbstractionStarter]: For program point L131-1(lines 131 134) no Hoare annotation was computed. [2018-11-28 17:59:38,742 INFO L451 ceAbstractionStarter]: At program point atan_floatENTRY(lines 56 118) the Hoare annotation is: true [2018-11-28 17:59:38,742 INFO L448 ceAbstractionStarter]: For program point atan_floatFINAL(lines 56 118) no Hoare annotation was computed. [2018-11-28 17:59:38,742 INFO L448 ceAbstractionStarter]: For program point L60-1(lines 60 64) no Hoare annotation was computed. [2018-11-28 17:59:38,742 INFO L444 ceAbstractionStarter]: At program point L60-2(lines 60 64) the Hoare annotation is: (= |atan_float_#in~x| atan_float_~x) [2018-11-28 17:59:38,742 INFO L448 ceAbstractionStarter]: For program point L60-3(lines 60 64) no Hoare annotation was computed. [2018-11-28 17:59:38,742 INFO L444 ceAbstractionStarter]: At program point L81(line 81) the Hoare annotation is: (and (exists ((atan_float_~hx~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) atan_float_~hx~0) ((_ extract 30 23) atan_float_~hx~0) ((_ extract 22 0) atan_float_~hx~0)) |atan_float_#in~x|) (= (bvand (_ bv2147483647 32) atan_float_~hx~0) atan_float_~ix~1))) (= (fp ((_ extract 31 31) atan_float_~hx~0) ((_ extract 30 23) atan_float_~hx~0) ((_ extract 22 0) atan_float_~hx~0)) |atan_float_#in~x|) (exists ((atan_float_~hx~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) atan_float_~hx~0) ((_ extract 30 23) atan_float_~hx~0) ((_ extract 22 0) atan_float_~hx~0)) |atan_float_#in~x|) (not (bvsge (bvand (_ bv2147483647 32) atan_float_~hx~0) (_ bv1350565888 32))))) (= |atan_float_#in~x| atan_float_~x)) [2018-11-28 17:59:38,742 INFO L448 ceAbstractionStarter]: For program point L81-1(line 81) no Hoare annotation was computed. [2018-11-28 17:59:38,743 INFO L448 ceAbstractionStarter]: For program point L69(lines 69 72) no Hoare annotation was computed. [2018-11-28 17:59:38,743 INFO L448 ceAbstractionStarter]: For program point L82(lines 82 98) no Hoare annotation was computed. [2018-11-28 17:59:38,743 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 99) no Hoare annotation was computed. [2018-11-28 17:59:38,743 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 73) no Hoare annotation was computed. [2018-11-28 17:59:38,743 INFO L448 ceAbstractionStarter]: For program point L91(lines 91 97) no Hoare annotation was computed. [2018-11-28 17:59:38,743 INFO L448 ceAbstractionStarter]: For program point L91-2(lines 74 99) no Hoare annotation was computed. [2018-11-28 17:59:38,743 INFO L448 ceAbstractionStarter]: For program point L116(line 116) no Hoare annotation was computed. [2018-11-28 17:59:38,743 INFO L448 ceAbstractionStarter]: For program point L83(lines 83 89) no Hoare annotation was computed. [2018-11-28 17:59:38,744 INFO L448 ceAbstractionStarter]: For program point L116-2(line 116) no Hoare annotation was computed. [2018-11-28 17:59:38,744 INFO L448 ceAbstractionStarter]: For program point L112(lines 112 117) no Hoare annotation was computed. [2018-11-28 17:59:38,744 INFO L448 ceAbstractionStarter]: For program point L75(lines 75 78) no Hoare annotation was computed. [2018-11-28 17:59:38,744 INFO L448 ceAbstractionStarter]: For program point L75-2(lines 75 78) no Hoare annotation was computed. [2018-11-28 17:59:38,744 INFO L448 ceAbstractionStarter]: For program point L67(lines 67 68) no Hoare annotation was computed. [2018-11-28 17:59:38,744 INFO L448 ceAbstractionStarter]: For program point atan_floatEXIT(lines 56 118) no Hoare annotation was computed. [2018-11-28 17:59:38,744 INFO L448 ceAbstractionStarter]: For program point L76(lines 76 77) no Hoare annotation was computed. [2018-11-28 17:59:38,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:59:38 BoogieIcfgContainer [2018-11-28 17:59:38,760 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:59:38,760 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:59:38,760 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:59:38,761 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:59:38,761 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:58:39" (3/4) ... [2018-11-28 17:59:38,766 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 17:59:38,774 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-28 17:59:38,774 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 17:59:38,774 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-11-28 17:59:38,774 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 17:59:38,775 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2018-11-28 17:59:38,782 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2018-11-28 17:59:38,783 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-11-28 17:59:38,783 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-28 17:59:38,783 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 17:59:38,816 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 17:59:38,862 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 17:59:38,862 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:59:38,863 INFO L168 Benchmark]: Toolchain (without parser) took 69837.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 954.0 MB in the beginning and 821.2 MB in the end (delta: 132.9 MB). Peak memory consumption was 258.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:59:38,864 INFO L168 Benchmark]: CDTParser took 0.58 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 17:59:38,865 INFO L168 Benchmark]: CACSL2BoogieTranslator took 528.45 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 937.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:59:38,865 INFO L168 Benchmark]: Boogie Procedure Inliner took 107.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -175.1 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-11-28 17:59:38,866 INFO L168 Benchmark]: Boogie Preprocessor took 65.13 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 17:59:38,866 INFO L168 Benchmark]: RCFGBuilder took 9859.45 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: 38.4 MB). Peak memory consumption was 38.4 MB. Max. memory is 11.5 GB. [2018-11-28 17:59:38,867 INFO L168 Benchmark]: TraceAbstraction took 59167.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 827.8 MB in the end (delta: 246.8 MB). Peak memory consumption was 246.8 MB. Max. memory is 11.5 GB. [2018-11-28 17:59:38,867 INFO L168 Benchmark]: Witness Printer took 102.00 ms. Allocated memory is still 1.2 GB. Free memory was 827.8 MB in the beginning and 821.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-28 17:59:38,871 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58 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 528.45 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 937.9 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 107.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -175.1 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 65.13 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 9859.45 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: 38.4 MB). Peak memory consumption was 38.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 59167.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 827.8 MB in the end (delta: 246.8 MB). Peak memory consumption was 246.8 MB. Max. memory is 11.5 GB. * Witness Printer took 102.00 ms. Allocated memory is still 1.2 GB. Free memory was 827.8 MB in the beginning and 821.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 132]: 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: 60]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 49 locations, 1 error locations. SAFE Result, 59.0s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 53.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 231 SDtfs, 227 SDslu, 791 SDs, 0 SdLazy, 280 SolverSat, 17 SolverUnsat, 12 SolverUnknown, 0 SolverNotchecked, 48.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 167 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred 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, 6 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 19 PreInvPairs, 23 NumberOfFragments, 82 HoareAnnotationTreeSize, 19 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 152 NumberOfCodeBlocks, 152 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 146 ConstructedInterpolants, 29 QuantifiedInterpolants, 20921 SizeOfPredicates, 20 NumberOfNonLiveVariables, 855 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...