/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0610_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 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 ../../../trunk/examples/svcomp/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 ../../../trunk/examples/svcomp/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 0.1.23-40ef509 [2018-09-20 15:13:22,632 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:13:22,635 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:13:22,655 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:13:22,655 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:13:22,658 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:13:22,660 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:13:22,663 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:13:22,666 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:13:22,668 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:13:22,671 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:13:22,672 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:13:22,673 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:13:22,676 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:13:22,686 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:13:22,686 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:13:22,687 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:13:22,693 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:13:22,694 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:13:22,698 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:13:22,699 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:13:22,701 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:13:22,703 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:13:22,707 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:13:22,707 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:13:22,709 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:13:22,710 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:13:22,711 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:13:22,715 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:13:22,717 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:13:22,717 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:13:22,718 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:13:22,718 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:13:22,718 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:13:22,719 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:13:22,720 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:13:22,720 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:13:22,735 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:13:22,736 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:13:22,736 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:13:22,737 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:13:22,737 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:13:22,738 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:13:22,738 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:13:22,738 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:13:22,738 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:13:22,739 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:13:22,739 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:13:22,739 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:13:22,739 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:13:22,740 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:13:22,740 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:13:22,740 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:13:22,741 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:13:22,741 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:13:22,741 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:13:22,741 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:13:22,741 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:13:22,742 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:13:22,742 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:13:22,742 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:13:22,742 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:13:22,742 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:13:22,744 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:13:22,744 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:13:22,744 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:13:22,744 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 [2018-09-20 15:13:22,806 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:13:22,824 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:13:22,831 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:13:22,832 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:13:22,833 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:13:22,833 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0610_true-unreach-call.c [2018-09-20 15:13:23,171 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2c464357/13b0b4dbb7004965b18d1d5f6cd67107/FLAG7cc32fda8 [2018-09-20 15:13:23,371 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:13:23,372 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0610_true-unreach-call.c [2018-09-20 15:13:23,385 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2c464357/13b0b4dbb7004965b18d1d5f6cd67107/FLAG7cc32fda8 [2018-09-20 15:13:23,413 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2c464357/13b0b4dbb7004965b18d1d5f6cd67107 [2018-09-20 15:13:23,418 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:13:23,423 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:13:23,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:13:23,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:13:23,434 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:13:23,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:13:23" (1/1) ... [2018-09-20 15:13:23,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ef5351d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:23, skipping insertion in model container [2018-09-20 15:13:23,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:13:23" (1/1) ... [2018-09-20 15:13:23,454 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:13:23,769 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:13:23,801 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:13:23,840 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:13:23,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:23 WrapperNode [2018-09-20 15:13:23,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:13:23,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:13:23,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:13:23,875 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:13:23,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:23" (1/1) ... [2018-09-20 15:13:23,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:23" (1/1) ... [2018-09-20 15:13:23,909 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:23" (1/1) ... [2018-09-20 15:13:23,909 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:23" (1/1) ... [2018-09-20 15:13:23,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:23" (1/1) ... [2018-09-20 15:13:23,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:23" (1/1) ... [2018-09-20 15:13:23,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:23" (1/1) ... [2018-09-20 15:13:23,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:13:23,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:13:23,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:13:23,950 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:13:23,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:23" (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 [2018-09-20 15:13:24,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:13:24,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:13:24,149 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-20 15:13:24,149 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-20 15:13:24,150 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-09-20 15:13:24,150 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:13:24,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:13:24,150 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:13:24,150 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-20 15:13:24,150 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-20 15:13:24,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:13:24,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:13:24,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:13:24,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:13:24,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:13:24,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:13:24,153 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-09-20 15:13:24,153 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:13:24,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:13:24,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:13:24,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:13:24,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:13:24,791 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:13:24,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:13:24 BoogieIcfgContainer [2018-09-20 15:13:24,792 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:13:24,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:13:24,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:13:24,797 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:13:24,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:13:23" (1/3) ... [2018-09-20 15:13:24,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fd7a216 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:13:24, skipping insertion in model container [2018-09-20 15:13:24,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:23" (2/3) ... [2018-09-20 15:13:24,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fd7a216 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:13:24, skipping insertion in model container [2018-09-20 15:13:24,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:13:24" (3/3) ... [2018-09-20 15:13:24,802 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610_true-unreach-call.c [2018-09-20 15:13:24,812 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:13:24,820 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:13:24,868 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:13:24,869 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:13:24,869 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:13:24,869 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:13:24,869 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:13:24,869 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:13:24,870 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:13:24,870 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:13:24,870 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:13:24,893 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2018-09-20 15:13:24,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-20 15:13:24,901 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:13:24,903 INFO L376 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] [2018-09-20 15:13:24,906 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:13:24,912 INFO L82 PathProgramCache]: Analyzing trace with hash 565183424, now seen corresponding path program 1 times [2018-09-20 15:13:24,914 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:13:24,915 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:13:24,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:13:24,972 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:13:24,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:13:25,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:13:25,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:13:25,096 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:13:25,097 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:13:25,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:13:25,116 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:13:25,117 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:13:25,119 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 2 states. [2018-09-20 15:13:25,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:13:25,162 INFO L93 Difference]: Finished difference Result 140 states and 175 transitions. [2018-09-20 15:13:25,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:13:25,163 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-09-20 15:13:25,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:13:25,176 INFO L225 Difference]: With dead ends: 140 [2018-09-20 15:13:25,176 INFO L226 Difference]: Without dead ends: 70 [2018-09-20 15:13:25,180 INFO L606 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 [2018-09-20 15:13:25,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-09-20 15:13:25,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2018-09-20 15:13:25,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-09-20 15:13:25,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 80 transitions. [2018-09-20 15:13:25,229 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 80 transitions. Word has length 22 [2018-09-20 15:13:25,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:13:25,230 INFO L480 AbstractCegarLoop]: Abstraction has 70 states and 80 transitions. [2018-09-20 15:13:25,230 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:13:25,230 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 80 transitions. [2018-09-20 15:13:25,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-20 15:13:25,235 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:13:25,235 INFO L376 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] [2018-09-20 15:13:25,236 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:13:25,236 INFO L82 PathProgramCache]: Analyzing trace with hash -390279649, now seen corresponding path program 1 times [2018-09-20 15:13:25,237 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:13:25,237 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:13:25,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:13:25,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:13:25,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:13:25,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:13:25,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:13:25,408 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:13:25,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:13:25 BoogieIcfgContainer [2018-09-20 15:13:25,466 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:13:25,467 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:13:25,467 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:13:25,467 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:13:25,468 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:13:24" (3/4) ... [2018-09-20 15:13:25,471 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:13:25,471 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:13:25,472 INFO L168 Benchmark]: Toolchain (without parser) took 2051.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 951.8 MB in the beginning and 1.1 GB in the end (delta: -137.0 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:13:25,474 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:13:25,474 INFO L168 Benchmark]: CACSL2BoogieTranslator took 450.32 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:13:25,475 INFO L168 Benchmark]: Boogie Preprocessor took 74.91 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:13:25,475 INFO L168 Benchmark]: RCFGBuilder took 842.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -187.7 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2018-09-20 15:13:25,477 INFO L168 Benchmark]: TraceAbstraction took 672.86 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: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. [2018-09-20 15:13:25,477 INFO L168 Benchmark]: Witness Printer took 4.43 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. [2018-09-20 15:13:25,481 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 450.32 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 74.91 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 842.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -187.7 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 672.86 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: 34.5 MB). Peak memory consumption was 34.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 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, }; [L32-L37] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L32-L37] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [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, }; [L39-L44] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L39-L44] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [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, }; [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, }; [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, }; [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, }; [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, }; [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, }; [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, }; [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, }; [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, }; [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, }; [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(huge_atan)=26, \old(huge_floor)=22, \old(one_atan)=13, \old(pi)=23, \old(pi_o_2)=14, \old(pi_o_4)=19, 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 [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)=21, 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)=21, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=21] [L61] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=21, gf_u={17:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=21] [L62] FCALL gf_u.value = (x) VAL [\old(x)=21, gf_u={17:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=21] [L63] EXPR, FCALL gf_u.word VAL [\old(x)=21, gf_u={17:0}, gf_u.word=12, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=21] [L63] (hx) = gf_u.word VAL [\old(x)=21, gf_u={17:0}, gf_u.word=12, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=12, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=21] [L63] FCALL (hx) = gf_u.word VAL [(hx) = gf_u.word=20, \old(x)=21, gf_u={17:0}, gf_u.word=12, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=12, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=21] [L64] COND FALSE !(0) VAL [\old(x)=21, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=12, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=21] [L65] ix = hx & 0x7fffffff VAL [\old(x)=21, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=12, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=21] [L66] COND TRUE ix >= 0x50800000 VAL [\old(x)=21, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=12, ix=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=21] [L67] COND TRUE ((ix) > 0x7f800000L) [L68] RET return x + x; VAL [\old(x)=21, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=12, ix=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=21] [L128] EXPR atan_float(x) VAL [atan_float(x)=18, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=21] [L128] float res = atan_float(x); [L131] CALL, EXPR isnan_float(res) VAL [\old(x)=18, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L15] RET return x != x; VAL [\old(x)=18, \result=0, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=18] [L131] EXPR isnan_float(res) VAL [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=18, x=21] [L131] COND TRUE !isnan_float(res) [L132] __VERIFIER_error() VAL [huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=18, x=21] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 74 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 84 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=74occurred 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, 53 NumberOfCodeBlocks, 53 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 0.1.23-40ef509 [2018-09-20 15:13:27,838 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:13:27,840 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:13:27,853 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:13:27,854 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:13:27,855 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:13:27,856 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:13:27,864 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:13:27,866 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:13:27,867 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:13:27,868 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:13:27,868 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:13:27,869 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:13:27,870 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:13:27,872 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:13:27,873 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:13:27,874 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:13:27,876 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:13:27,878 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:13:27,880 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:13:27,881 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:13:27,883 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:13:27,885 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:13:27,886 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:13:27,886 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:13:27,887 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:13:27,888 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:13:27,890 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:13:27,890 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:13:27,892 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:13:27,892 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:13:27,893 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:13:27,893 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:13:27,893 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:13:27,895 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:13:27,895 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:13:27,896 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:13:27,912 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:13:27,912 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:13:27,913 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:13:27,913 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:13:27,914 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:13:27,915 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:13:27,915 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:13:27,915 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:13:27,915 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:13:27,915 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:13:27,915 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:13:27,916 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:13:27,916 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:13:27,916 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:13:27,916 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:13:27,918 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:13:27,918 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:13:27,918 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:13:27,918 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:13:27,918 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:13:27,919 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:13:27,919 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:13:27,919 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:13:27,919 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:13:27,920 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:13:27,921 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:13:27,921 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:13:27,921 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:13:27,921 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:13:27,921 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:13:27,922 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:13:27,922 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 [2018-09-20 15:13:27,976 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:13:28,000 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:13:28,007 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:13:28,008 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:13:28,009 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:13:28,010 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0610_true-unreach-call.c [2018-09-20 15:13:28,397 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a89a28de9/bf057cc657884a23b264a91778ae6a73/FLAGfc519cd23 [2018-09-20 15:13:28,581 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:13:28,582 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0610_true-unreach-call.c [2018-09-20 15:13:28,592 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a89a28de9/bf057cc657884a23b264a91778ae6a73/FLAGfc519cd23 [2018-09-20 15:13:28,619 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a89a28de9/bf057cc657884a23b264a91778ae6a73 [2018-09-20 15:13:28,625 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:13:28,629 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:13:28,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:13:28,632 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:13:28,639 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:13:28,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:13:28" (1/1) ... [2018-09-20 15:13:28,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b3d21c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:28, skipping insertion in model container [2018-09-20 15:13:28,644 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:13:28" (1/1) ... [2018-09-20 15:13:28,656 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:13:28,901 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:13:28,934 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:13:28,971 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:13:29,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:29 WrapperNode [2018-09-20 15:13:29,017 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:13:29,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:13:29,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:13:29,019 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:13:29,040 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:29" (1/1) ... [2018-09-20 15:13:29,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:29" (1/1) ... [2018-09-20 15:13:29,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:29" (1/1) ... [2018-09-20 15:13:29,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:29" (1/1) ... [2018-09-20 15:13:29,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:29" (1/1) ... [2018-09-20 15:13:29,089 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:29" (1/1) ... [2018-09-20 15:13:29,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:29" (1/1) ... [2018-09-20 15:13:29,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:13:29,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:13:29,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:13:29,105 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:13:29,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:29" (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 [2018-09-20 15:13:29,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:13:29,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:13:29,244 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-20 15:13:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-20 15:13:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-09-20 15:13:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:13:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:13:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:13:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-20 15:13:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-20 15:13:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:13:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-20 15:13:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:13:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:13:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:13:29,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-20 15:13:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-09-20 15:13:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:13:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:13:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:13:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:13:29,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-20 15:13:31,689 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:13:31,707 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:13:34,370 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:13:36,534 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:13:40,642 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:13:40,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:13:40 BoogieIcfgContainer [2018-09-20 15:13:40,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:13:40,644 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:13:40,644 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:13:40,648 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:13:40,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:13:28" (1/3) ... [2018-09-20 15:13:40,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@641b7dac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:13:40, skipping insertion in model container [2018-09-20 15:13:40,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:13:29" (2/3) ... [2018-09-20 15:13:40,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@641b7dac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:13:40, skipping insertion in model container [2018-09-20 15:13:40,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:13:40" (3/3) ... [2018-09-20 15:13:40,653 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610_true-unreach-call.c [2018-09-20 15:13:40,663 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:13:40,670 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:13:40,720 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:13:40,721 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:13:40,722 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:13:40,722 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:13:40,722 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:13:40,722 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:13:40,722 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:13:40,723 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:13:40,723 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:13:40,744 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2018-09-20 15:13:40,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-20 15:13:40,753 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:13:40,754 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:13:40,757 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:13:40,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1430343675, now seen corresponding path program 1 times [2018-09-20 15:13:40,768 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:13:40,769 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-20 15:13:40,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:13:40,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:13:40,896 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:13:40,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:13:40,920 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:13:40,942 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:13:40,942 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:13:40,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:13:40,964 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:13:40,965 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:13:40,968 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 2 states. [2018-09-20 15:13:41,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:13:41,009 INFO L93 Difference]: Finished difference Result 138 states and 173 transitions. [2018-09-20 15:13:41,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:13:41,011 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-09-20 15:13:41,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:13:41,025 INFO L225 Difference]: With dead ends: 138 [2018-09-20 15:13:41,027 INFO L226 Difference]: Without dead ends: 69 [2018-09-20 15:13:41,034 INFO L606 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 [2018-09-20 15:13:41,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2018-09-20 15:13:41,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2018-09-20 15:13:41,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-09-20 15:13:41,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 79 transitions. [2018-09-20 15:13:41,102 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 79 transitions. Word has length 21 [2018-09-20 15:13:41,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:13:41,103 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 79 transitions. [2018-09-20 15:13:41,104 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:13:41,104 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 79 transitions. [2018-09-20 15:13:41,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-20 15:13:41,106 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:13:41,106 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:13:41,107 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:13:41,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1099751881, now seen corresponding path program 1 times [2018-09-20 15:13:41,111 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:13:41,112 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 [2018-09-20 15:13:41,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:13:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:13:41,202 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:13:42,074 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 3 [2018-09-20 15:13:42,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:13:42,083 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:13:42,099 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:13:42,099 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:13:42,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:13:42,101 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:13:42,103 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:13:42,103 INFO L87 Difference]: Start difference. First operand 69 states and 79 transitions. Second operand 9 states. [2018-09-20 15:13:42,653 WARN L178 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-20 15:13:55,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:13:55,868 INFO L93 Difference]: Finished difference Result 79 states and 89 transitions. [2018-09-20 15:13:55,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-20 15:13:55,870 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-09-20 15:13:55,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:13:55,875 INFO L225 Difference]: With dead ends: 79 [2018-09-20 15:13:55,875 INFO L226 Difference]: Without dead ends: 72 [2018-09-20 15:13:55,877 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-09-20 15:13:55,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-09-20 15:13:55,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 69. [2018-09-20 15:13:55,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-09-20 15:13:55,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 78 transitions. [2018-09-20 15:13:55,895 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 78 transitions. Word has length 30 [2018-09-20 15:13:55,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:13:55,896 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 78 transitions. [2018-09-20 15:13:55,896 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:13:55,896 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 78 transitions. [2018-09-20 15:13:55,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-20 15:13:55,898 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:13:55,898 INFO L376 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] [2018-09-20 15:13:55,898 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:13:55,899 INFO L82 PathProgramCache]: Analyzing trace with hash 102629660, now seen corresponding path program 1 times [2018-09-20 15:13:55,900 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:13:55,900 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) [2018-09-20 15:13:55,914 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-20 15:13:56,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:13:56,049 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:13:56,269 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:13:56,294 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:13:56,295 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:13:56,321 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:13:56,366 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:13:56,366 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:13:56,419 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:13:56,424 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:13:56,425 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:13:56,448 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:13:56,463 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:13:56,464 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:13:56,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:13:56,720 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:13:56,739 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:13:56,739 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-20 15:13:56,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-20 15:13:56,740 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-20 15:13:56,740 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-09-20 15:13:56,740 INFO L87 Difference]: Start difference. First operand 69 states and 78 transitions. Second operand 10 states. [2018-09-20 15:14:12,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:14:12,614 INFO L93 Difference]: Finished difference Result 83 states and 91 transitions. [2018-09-20 15:14:12,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-20 15:14:12,667 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2018-09-20 15:14:12,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:14:12,670 INFO L225 Difference]: With dead ends: 83 [2018-09-20 15:14:12,670 INFO L226 Difference]: Without dead ends: 71 [2018-09-20 15:14:12,671 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2018-09-20 15:14:12,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-09-20 15:14:12,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 67. [2018-09-20 15:14:12,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-09-20 15:14:12,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 74 transitions. [2018-09-20 15:14:12,681 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 74 transitions. Word has length 31 [2018-09-20 15:14:12,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:14:12,681 INFO L480 AbstractCegarLoop]: Abstraction has 67 states and 74 transitions. [2018-09-20 15:14:12,681 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-20 15:14:12,682 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 74 transitions. [2018-09-20 15:14:12,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-20 15:14:12,684 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:14:12,684 INFO L376 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] [2018-09-20 15:14:12,684 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:14:12,685 INFO L82 PathProgramCache]: Analyzing trace with hash 88207686, now seen corresponding path program 1 times [2018-09-20 15:14:12,685 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:14:12,686 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 [2018-09-20 15:14:12,696 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:14:12,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:14:12,796 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:14:12,885 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:14:12,889 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:14:12,890 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:14:12,894 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:14:12,905 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:14:12,905 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:14:12,925 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:14:12,929 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:14:12,930 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:14:12,934 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:14:12,946 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:14:12,947 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:14:13,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:14:13,096 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:14:13,110 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:14:13,111 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:14:13,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:14:13,112 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:14:13,113 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:14:13,113 INFO L87 Difference]: Start difference. First operand 67 states and 74 transitions. Second operand 9 states. [2018-09-20 15:14:23,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:14:23,698 INFO L93 Difference]: Finished difference Result 78 states and 84 transitions. [2018-09-20 15:14:23,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-20 15:14:23,754 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 32 [2018-09-20 15:14:23,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:14:23,756 INFO L225 Difference]: With dead ends: 78 [2018-09-20 15:14:23,757 INFO L226 Difference]: Without dead ends: 68 [2018-09-20 15:14:23,758 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-09-20 15:14:23,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-09-20 15:14:23,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 67. [2018-09-20 15:14:23,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-09-20 15:14:23,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 73 transitions. [2018-09-20 15:14:23,767 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 73 transitions. Word has length 32 [2018-09-20 15:14:23,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:14:23,768 INFO L480 AbstractCegarLoop]: Abstraction has 67 states and 73 transitions. [2018-09-20 15:14:23,768 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:14:23,768 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 73 transitions. [2018-09-20 15:14:23,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-20 15:14:23,771 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:14:23,772 INFO L376 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] [2018-09-20 15:14:23,772 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:14:23,772 INFO L82 PathProgramCache]: Analyzing trace with hash -653680444, now seen corresponding path program 1 times [2018-09-20 15:14:23,773 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:14:23,773 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 [2018-09-20 15:14:23,777 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:14:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:14:24,828 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:14:24,859 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:14:24,864 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:14:24,865 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:14:24,875 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:14:24,885 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:14:24,885 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:14:24,909 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:14:24,915 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:14:24,916 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:14:24,919 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:14:24,922 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:14:24,923 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:14:25,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:14:25,055 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:14:25,083 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:14:25,083 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:14:25,083 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:14:25,084 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:14:25,084 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:14:25,084 INFO L87 Difference]: Start difference. First operand 67 states and 73 transitions. Second operand 9 states. [2018-09-20 15:14:36,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:14:36,499 INFO L93 Difference]: Finished difference Result 68 states and 74 transitions. [2018-09-20 15:14:36,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-20 15:14:36,556 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2018-09-20 15:14:36,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:14:36,557 INFO L225 Difference]: With dead ends: 68 [2018-09-20 15:14:36,557 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:14:36,558 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-09-20 15:14:36,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:14:36,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:14:36,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:14:36,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:14:36,560 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2018-09-20 15:14:36,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:14:36,560 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:14:36,560 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:14:36,561 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:14:36,561 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:14:36,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:14:36,953 INFO L426 ceAbstractionStarter]: For program point isnan_floatFINAL(line 15) no Hoare annotation was computed. [2018-09-20 15:14:36,953 INFO L429 ceAbstractionStarter]: At program point isnan_floatENTRY(line 15) the Hoare annotation is: true [2018-09-20 15:14:36,953 INFO L426 ceAbstractionStarter]: For program point isnan_floatEXIT(line 15) no Hoare annotation was computed. [2018-09-20 15:14:36,954 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:14:36,954 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:14:36,954 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:14:36,954 INFO L426 ceAbstractionStarter]: For program point L27(line 27) no Hoare annotation was computed. [2018-09-20 15:14:36,954 INFO L426 ceAbstractionStarter]: For program point L27-1(line 27) no Hoare annotation was computed. [2018-09-20 15:14:36,954 INFO L426 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 17 30) no Hoare annotation was computed. [2018-09-20 15:14:36,954 INFO L426 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-09-20 15:14:36,955 INFO L426 ceAbstractionStarter]: For program point L27-2(line 27) no Hoare annotation was computed. [2018-09-20 15:14:36,955 INFO L426 ceAbstractionStarter]: For program point L25-1(line 25) no Hoare annotation was computed. [2018-09-20 15:14:36,955 INFO L426 ceAbstractionStarter]: For program point L25-2(line 25) no Hoare annotation was computed. [2018-09-20 15:14:36,955 INFO L426 ceAbstractionStarter]: For program point L25-3(line 25) no Hoare annotation was computed. [2018-09-20 15:14:36,955 INFO L426 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-09-20 15:14:36,955 INFO L426 ceAbstractionStarter]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2018-09-20 15:14:36,958 INFO L429 ceAbstractionStarter]: At program point L19-3(lines 19 23) the Hoare annotation is: true [2018-09-20 15:14:36,958 INFO L426 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 17 30) no Hoare annotation was computed. [2018-09-20 15:14:36,959 INFO L426 ceAbstractionStarter]: For program point L26(line 26) no Hoare annotation was computed. [2018-09-20 15:14:36,959 INFO L426 ceAbstractionStarter]: For program point L24(lines 24 28) no Hoare annotation was computed. [2018-09-20 15:14:36,959 INFO L429 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 17 30) the Hoare annotation is: true [2018-09-20 15:14:36,959 INFO L426 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-09-20 15:14:36,959 INFO L426 ceAbstractionStarter]: For program point L24-2(lines 17 30) no Hoare annotation was computed. [2018-09-20 15:14:36,959 INFO L426 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-09-20 15:14:36,959 INFO L426 ceAbstractionStarter]: For program point L24-3(lines 24 28) no Hoare annotation was computed. [2018-09-20 15:14:36,959 INFO L426 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-09-20 15:14:36,960 INFO L426 ceAbstractionStarter]: For program point L22-2(line 22) no Hoare annotation was computed. [2018-09-20 15:14:36,960 INFO L426 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-09-20 15:14:36,960 INFO L426 ceAbstractionStarter]: For program point L20-2(line 20) no Hoare annotation was computed. [2018-09-20 15:14:36,960 INFO L426 ceAbstractionStarter]: For program point L20-3(line 20) no Hoare annotation was computed. [2018-09-20 15:14:36,960 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:14:36,960 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 15:14:36,963 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:14:36,963 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:14:36,963 INFO L422 ceAbstractionStarter]: At program point L128(line 128) the Hoare annotation is: (= (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)) main_~x~0) [2018-09-20 15:14:36,964 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 132) no Hoare annotation was computed. [2018-09-20 15:14:36,964 INFO L426 ceAbstractionStarter]: For program point L128-1(line 128) no Hoare annotation was computed. [2018-09-20 15:14:36,964 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 120 137) the Hoare annotation is: true [2018-09-20 15:14:36,964 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 120 137) no Hoare annotation was computed. [2018-09-20 15:14:36,964 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 120 137) no Hoare annotation was computed. [2018-09-20 15:14:36,964 INFO L426 ceAbstractionStarter]: For program point L132(line 132) no Hoare annotation was computed. [2018-09-20 15:14:36,965 INFO L422 ceAbstractionStarter]: At program point L131(line 131) the Hoare annotation is: (let ((.cse0 (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~res~0 (fp.add RNE .cse0 .cse0)) (= .cse0 main_~x~0))) [2018-09-20 15:14:36,965 INFO L426 ceAbstractionStarter]: For program point L131-1(lines 131 134) no Hoare annotation was computed. [2018-09-20 15:14:36,965 INFO L429 ceAbstractionStarter]: At program point atan_floatENTRY(lines 56 118) the Hoare annotation is: true [2018-09-20 15:14:36,965 INFO L426 ceAbstractionStarter]: For program point atan_floatFINAL(lines 56 118) no Hoare annotation was computed. [2018-09-20 15:14:36,965 INFO L426 ceAbstractionStarter]: For program point L60-1(lines 60 64) no Hoare annotation was computed. [2018-09-20 15:14:36,965 INFO L422 ceAbstractionStarter]: At program point L60-3(lines 60 64) the Hoare annotation is: (= |atan_float_#in~x| atan_float_~x) [2018-09-20 15:14:36,965 INFO L426 ceAbstractionStarter]: For program point L60-4(lines 60 64) no Hoare annotation was computed. [2018-09-20 15:14:36,968 INFO L422 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 atan_float_~hx~0 (_ bv2147483647 32)) 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 atan_float_~hx~0 (_ bv2147483647 32)) (_ bv1350565888 32))))) (= |atan_float_#in~x| atan_float_~x)) [2018-09-20 15:14:36,968 INFO L426 ceAbstractionStarter]: For program point L81-1(line 81) no Hoare annotation was computed. [2018-09-20 15:14:36,968 INFO L426 ceAbstractionStarter]: For program point L69(lines 69 72) no Hoare annotation was computed. [2018-09-20 15:14:36,968 INFO L426 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-09-20 15:14:36,968 INFO L426 ceAbstractionStarter]: For program point L61-1(line 61) no Hoare annotation was computed. [2018-09-20 15:14:36,969 INFO L426 ceAbstractionStarter]: For program point L61-2(line 61) no Hoare annotation was computed. [2018-09-20 15:14:36,969 INFO L426 ceAbstractionStarter]: For program point L61-3(line 61) no Hoare annotation was computed. [2018-09-20 15:14:36,969 INFO L426 ceAbstractionStarter]: For program point L82(lines 82 98) no Hoare annotation was computed. [2018-09-20 15:14:36,969 INFO L426 ceAbstractionStarter]: For program point L74(lines 74 99) no Hoare annotation was computed. [2018-09-20 15:14:36,969 INFO L426 ceAbstractionStarter]: For program point L66(lines 66 73) no Hoare annotation was computed. [2018-09-20 15:14:36,969 INFO L426 ceAbstractionStarter]: For program point L62(line 62) no Hoare annotation was computed. [2018-09-20 15:14:36,969 INFO L426 ceAbstractionStarter]: For program point L91(lines 91 97) no Hoare annotation was computed. [2018-09-20 15:14:36,969 INFO L426 ceAbstractionStarter]: For program point L91-2(lines 74 99) no Hoare annotation was computed. [2018-09-20 15:14:36,970 INFO L426 ceAbstractionStarter]: For program point L116(line 116) no Hoare annotation was computed. [2018-09-20 15:14:36,970 INFO L426 ceAbstractionStarter]: For program point L83(lines 83 89) no Hoare annotation was computed. [2018-09-20 15:14:36,970 INFO L426 ceAbstractionStarter]: For program point L116-2(line 116) no Hoare annotation was computed. [2018-09-20 15:14:36,970 INFO L426 ceAbstractionStarter]: For program point L112(lines 112 117) no Hoare annotation was computed. [2018-09-20 15:14:36,970 INFO L426 ceAbstractionStarter]: For program point L75(lines 75 78) no Hoare annotation was computed. [2018-09-20 15:14:36,970 INFO L426 ceAbstractionStarter]: For program point L75-2(lines 75 78) no Hoare annotation was computed. [2018-09-20 15:14:36,970 INFO L426 ceAbstractionStarter]: For program point L67(lines 67 68) no Hoare annotation was computed. [2018-09-20 15:14:36,970 INFO L426 ceAbstractionStarter]: For program point atan_floatEXIT(lines 56 118) no Hoare annotation was computed. [2018-09-20 15:14:36,971 INFO L426 ceAbstractionStarter]: For program point L63(line 63) no Hoare annotation was computed. [2018-09-20 15:14:36,971 INFO L426 ceAbstractionStarter]: For program point L63-1(line 63) no Hoare annotation was computed. [2018-09-20 15:14:36,971 INFO L426 ceAbstractionStarter]: For program point L63-2(line 63) no Hoare annotation was computed. [2018-09-20 15:14:36,971 INFO L426 ceAbstractionStarter]: For program point L76(lines 76 77) no Hoare annotation was computed. [2018-09-20 15:14:36,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:14:36 BoogieIcfgContainer [2018-09-20 15:14:36,985 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:14:36,986 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:14:36,986 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:14:36,986 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:14:36,987 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:13:40" (3/4) ... [2018-09-20 15:14:36,991 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 15:14:36,997 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-09-20 15:14:36,998 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 15:14:36,998 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-09-20 15:14:36,998 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 15:14:36,998 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2018-09-20 15:14:37,005 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-09-20 15:14:37,006 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-09-20 15:14:37,007 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-09-20 15:14:37,036 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-09-20 15:14:37,090 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:14:37,090 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:14:37,093 INFO L168 Benchmark]: Toolchain (without parser) took 68467.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 953.2 MB in the beginning and 830.3 MB in the end (delta: 122.9 MB). Peak memory consumption was 271.3 MB. Max. memory is 11.5 GB. [2018-09-20 15:14:37,095 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:14:37,095 INFO L168 Benchmark]: CACSL2BoogieTranslator took 386.82 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:14:37,099 INFO L168 Benchmark]: Boogie Preprocessor took 85.43 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:14:37,099 INFO L168 Benchmark]: RCFGBuilder took 11538.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -170.7 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2018-09-20 15:14:37,100 INFO L168 Benchmark]: TraceAbstraction took 56340.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 830.3 MB in the end (delta: 277.5 MB). Peak memory consumption was 277.5 MB. Max. memory is 11.5 GB. [2018-09-20 15:14:37,100 INFO L168 Benchmark]: Witness Printer took 106.77 ms. Allocated memory is still 1.2 GB. Free memory is still 830.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:14:37,107 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 386.82 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 85.43 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 11538.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -170.7 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 56340.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 830.3 MB in the end (delta: 277.5 MB). Peak memory consumption was 277.5 MB. Max. memory is 11.5 GB. * Witness Printer took 106.77 ms. Allocated memory is still 1.2 GB. Free memory is still 830.3 MB. There was no memory consumed. 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: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 73 locations, 1 error locations. SAFE Result, 56.2s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 51.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 310 SDtfs, 215 SDslu, 1430 SDs, 0 SdLazy, 448 SolverSat, 20 SolverUnsat, 9 SolverUnknown, 0 SolverNotchecked, 47.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 172 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 3.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 18 PreInvPairs, 22 NumberOfFragments, 82 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 148 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 143 ConstructedInterpolants, 19 QuantifiedInterpolants, 25286 SizeOfPredicates, 28 NumberOfNonLiveVariables, 440 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...