/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0920b_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_0920b_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 df7585bdb7f55dd146660d2fca5142563fdf3df8 ...................................................................................................................................................................................................................................................................................................... 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_0920b_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 df7585bdb7f55dd146660d2fca5142563fdf3df8 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:27:28,688 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:27:28,691 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:27:28,707 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:27:28,707 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:27:28,709 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:27:28,710 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:27:28,712 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:27:28,714 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:27:28,715 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:27:28,716 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:27:28,716 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:27:28,717 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:27:28,718 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:27:28,719 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:27:28,720 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:27:28,720 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:27:28,722 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:27:28,724 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:27:28,726 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:27:28,727 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:27:28,728 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:27:28,731 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:27:28,731 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:27:28,732 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:27:28,733 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:27:28,734 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:27:28,735 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:27:28,735 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:27:28,737 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:27:28,737 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:27:28,738 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:27:28,738 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:27:28,738 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:27:28,739 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:27:28,740 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:27:28,740 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:27:28,757 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:27:28,758 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:27:28,758 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:27:28,759 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:27:28,760 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:27:28,761 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:27:28,761 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:27:28,761 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:27:28,761 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:27:28,761 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:27:28,761 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:27:28,762 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:27:28,762 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:27:28,762 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:27:28,762 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:27:28,764 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:27:28,764 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:27:28,764 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:27:28,765 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:27:28,765 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:27:28,765 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:27:28,765 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:27:28,766 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:27:28,766 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:27:28,766 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:27:28,766 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:27:28,766 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:27:28,766 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:27:28,767 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:27:28,767 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 -> df7585bdb7f55dd146660d2fca5142563fdf3df8 [2018-09-20 15:27:28,829 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:27:28,852 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:27:28,860 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:27:28,862 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:27:28,863 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:27:28,864 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0920b_true-unreach-call.c [2018-09-20 15:27:29,227 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f93c42099/06a8becfd106454e8f8286e3a438b2ec/FLAG66a2f793d [2018-09-20 15:27:29,453 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:27:29,454 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0920b_true-unreach-call.c [2018-09-20 15:27:29,470 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f93c42099/06a8becfd106454e8f8286e3a438b2ec/FLAG66a2f793d [2018-09-20 15:27:29,497 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f93c42099/06a8becfd106454e8f8286e3a438b2ec [2018-09-20 15:27:29,502 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:27:29,508 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:27:29,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:27:29,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:27:29,520 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:27:29,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:27:29" (1/1) ... [2018-09-20 15:27:29,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1447a47f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:29, skipping insertion in model container [2018-09-20 15:27:29,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:27:29" (1/1) ... [2018-09-20 15:27:29,538 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:27:29,807 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:27:29,826 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:27:29,879 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:27:29,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:29 WrapperNode [2018-09-20 15:27:29,915 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:27:29,916 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:27:29,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:27:29,916 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:27:29,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:29" (1/1) ... [2018-09-20 15:27:29,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:29" (1/1) ... [2018-09-20 15:27:29,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:29" (1/1) ... [2018-09-20 15:27:29,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:29" (1/1) ... [2018-09-20 15:27:29,956 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:29" (1/1) ... [2018-09-20 15:27:29,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:29" (1/1) ... [2018-09-20 15:27:29,966 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:29" (1/1) ... [2018-09-20 15:27:29,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:27:29,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:27:29,971 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:27:29,971 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:27:29,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:29" (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 15:27:30,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:27:30,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:27:30,128 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-09-20 15:27:30,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-09-20 15:27:30,128 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-20 15:27:30,129 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:27:30,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:27:30,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:27:30,129 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-09-20 15:27:30,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:27:30,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:27:30,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:27:30,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:27:30,130 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-09-20 15:27:30,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:27:30,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:27:30,130 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-20 15:27:30,130 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:27:30,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:27:30,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:27:30,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:27:30,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:27:30,948 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:27:30,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:27:30 BoogieIcfgContainer [2018-09-20 15:27:30,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:27:30,950 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:27:30,950 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:27:30,953 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:27:30,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:27:29" (1/3) ... [2018-09-20 15:27:30,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77f48ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:27:30, skipping insertion in model container [2018-09-20 15:27:30,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:29" (2/3) ... [2018-09-20 15:27:30,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77f48ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:27:30, skipping insertion in model container [2018-09-20 15:27:30,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:27:30" (3/3) ... [2018-09-20 15:27:30,957 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920b_true-unreach-call.c [2018-09-20 15:27:30,968 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:27:30,976 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:27:31,024 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:27:31,025 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:27:31,025 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:27:31,026 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:27:31,026 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:27:31,026 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:27:31,026 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:27:31,026 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:27:31,026 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:27:31,047 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states. [2018-09-20 15:27:31,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-20 15:27:31,055 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:27:31,056 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 15:27:31,059 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:27:31,064 INFO L82 PathProgramCache]: Analyzing trace with hash 613241854, now seen corresponding path program 1 times [2018-09-20 15:27:31,066 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:27:31,067 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:27:31,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:27:31,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:27:31,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:27:31,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:27:31,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:27:31,242 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:27:31,242 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:27:31,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:27:31,257 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:27:31,258 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:27:31,260 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 2 states. [2018-09-20 15:27:31,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:27:31,287 INFO L93 Difference]: Finished difference Result 126 states and 160 transitions. [2018-09-20 15:27:31,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:27:31,289 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-09-20 15:27:31,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:27:31,302 INFO L225 Difference]: With dead ends: 126 [2018-09-20 15:27:31,302 INFO L226 Difference]: Without dead ends: 63 [2018-09-20 15:27:31,306 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 15:27:31,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-09-20 15:27:31,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2018-09-20 15:27:31,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-09-20 15:27:31,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 73 transitions. [2018-09-20 15:27:31,351 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 73 transitions. Word has length 21 [2018-09-20 15:27:31,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:27:31,351 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 73 transitions. [2018-09-20 15:27:31,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:27:31,352 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 73 transitions. [2018-09-20 15:27:31,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-20 15:27:31,353 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:27:31,353 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 15:27:31,354 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:27:31,354 INFO L82 PathProgramCache]: Analyzing trace with hash -569562436, now seen corresponding path program 1 times [2018-09-20 15:27:31,354 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:27:31,354 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:27:31,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:27:31,356 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:27:31,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:27:31,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:27:31,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:27:31,494 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:27:31,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:27:31 BoogieIcfgContainer [2018-09-20 15:27:31,540 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:27:31,541 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:27:31,541 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:27:31,541 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:27:31,542 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:27:30" (3/4) ... [2018-09-20 15:27:31,546 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:27:31,546 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:27:31,547 INFO L168 Benchmark]: Toolchain (without parser) took 2044.23 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 80.7 MB). Free memory was 950.5 MB in the beginning and 1.0 GB in the end (delta: -68.2 MB). Peak memory consumption was 12.5 MB. Max. memory is 11.5 GB. [2018-09-20 15:27:31,549 INFO L168 Benchmark]: CDTParser took 0.25 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 15:27:31,549 INFO L168 Benchmark]: CACSL2BoogieTranslator took 405.61 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 939.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:27:31,550 INFO L168 Benchmark]: Boogie Preprocessor took 54.45 ms. Allocated memory is still 1.0 GB. Free memory was 939.8 MB in the beginning and 934.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:27:31,551 INFO L168 Benchmark]: RCFGBuilder took 978.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 80.7 MB). Free memory was 934.4 MB in the beginning and 1.0 GB in the end (delta: -112.8 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2018-09-20 15:27:31,552 INFO L168 Benchmark]: TraceAbstraction took 590.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:27:31,553 INFO L168 Benchmark]: Witness Printer took 5.50 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:27:31,558 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 405.61 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 939.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.45 ms. Allocated memory is still 1.0 GB. Free memory was 939.8 MB in the beginning and 934.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 978.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 80.7 MB). Free memory was 934.4 MB in the beginning and 1.0 GB in the end (delta: -112.8 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 590.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. * Witness Printer took 5.50 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 125]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 111, overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 43. Possible FailurePath: [L24-L28] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L30] static const float zero_log = 0.0; VAL [\old(Lg1_log)=6442450960, \old(Lg2_log)=6442450961, \old(Lg3_log)=6442450945, \old(Lg4_log)=6442450948, \old(Lg5_log)=6442450950, \old(Lg6_log)=6442450959, \old(Lg7_log)=6442450958, \old(ln2_hi_log)=6442450947, \old(ln2_lo_log)=6442450952, \old(two25_log)=6442450957, \old(zero_log)=6442450954, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L120] float x = -1.0f / 0.0f; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L121] CALL, EXPR __ieee754_logf(x) VAL [\old(x)=6442450951, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L33] float hfsq, f, s, z, R, w, t1, t2, dk; [L34] __int32_t k, ix, i, j; VAL [\old(x)=6442450951, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450951, zero_log=0] [L37] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=6442450951, gf_u={6442450955:0}, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450951, zero_log=0] [L38] FCALL gf_u.value = (x) VAL [\old(x)=6442450951, gf_u={6442450955:0}, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450951, zero_log=0] [L39] EXPR, FCALL gf_u.word VAL [\old(x)=6442450951, gf_u={6442450955:0}, gf_u.word=6442450944, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450951, zero_log=0] [L39] (ix) = gf_u.word VAL [\old(x)=6442450951, gf_u={6442450955:0}, gf_u.word=6442450944, ix=-2147483648, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450951, zero_log=0] [L39] FCALL (ix) = gf_u.word VAL [(ix) = gf_u.word=6442450956, \old(x)=6442450951, gf_u={6442450955:0}, gf_u.word=6442450944, ix=-2147483648, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450951, zero_log=0] [L40] COND FALSE !(0) VAL [\old(x)=6442450951, ix=-2147483648, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450951, zero_log=0] [L42] k = 0 VAL [\old(x)=6442450951, ix=-2147483648, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450951, zero_log=0] [L43] COND TRUE ((ix & 0x7fffffff) == 0) [L44] RET return -two25_log / zero_log; VAL [\old(x)=6442450951, ix=-2147483648, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450951, zero_log=0] [L121] EXPR __ieee754_logf(x) VAL [__ieee754_logf(x)=6442450949, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450951, zero_log=0] [L121] float res = __ieee754_logf(x); [L124] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450949, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L111] RET return x != x; VAL [\old(x)=6442450949, \result=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450949, zero_log=0] [L124] EXPR isnan_float(res) VAL [isnan_float(res)=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=6442450949, two25_log=33554432, x=6442450951, zero_log=0] [L124] COND TRUE !isnan_float(res) [L125] __VERIFIER_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=6442450949, two25_log=33554432, x=6442450951, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 81 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 77 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=67occurred 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, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-40ef509 [2018-09-20 15:27:33,939 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:27:33,941 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:27:33,957 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:27:33,957 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:27:33,959 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:27:33,960 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:27:33,965 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:27:33,968 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:27:33,969 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:27:33,970 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:27:33,971 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:27:33,972 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:27:33,973 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:27:33,974 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:27:33,975 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:27:33,976 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:27:33,977 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:27:33,979 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:27:33,981 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:27:33,982 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:27:33,984 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:27:33,986 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:27:33,987 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:27:33,987 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:27:33,988 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:27:33,989 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:27:33,990 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:27:33,991 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:27:33,992 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:27:33,992 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:27:33,993 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:27:33,993 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:27:33,994 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:27:33,998 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:27:33,999 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:27:33,999 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:27:34,024 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:27:34,024 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:27:34,025 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:27:34,025 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:27:34,026 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:27:34,026 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:27:34,026 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:27:34,026 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:27:34,027 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:27:34,027 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:27:34,028 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:27:34,028 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:27:34,028 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:27:34,028 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:27:34,028 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:27:34,029 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:27:34,029 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:27:34,030 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:27:34,030 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:27:34,030 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:27:34,030 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:27:34,031 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:27:34,031 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:27:34,031 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:27:34,032 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:27:34,032 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:27:34,032 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:27:34,032 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:27:34,033 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:27:34,033 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:27:34,034 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:27:34,034 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 -> df7585bdb7f55dd146660d2fca5142563fdf3df8 [2018-09-20 15:27:34,090 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:27:34,103 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:27:34,107 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:27:34,109 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:27:34,110 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:27:34,111 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0920b_true-unreach-call.c [2018-09-20 15:27:34,457 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b916d945/4cdf370c4f5e4eb692f56a410cfa3183/FLAG1cd7d92fb [2018-09-20 15:27:34,690 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:27:34,692 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0920b_true-unreach-call.c [2018-09-20 15:27:34,711 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b916d945/4cdf370c4f5e4eb692f56a410cfa3183/FLAG1cd7d92fb [2018-09-20 15:27:34,736 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b916d945/4cdf370c4f5e4eb692f56a410cfa3183 [2018-09-20 15:27:34,741 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:27:34,746 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:27:34,749 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:27:34,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:27:34,758 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:27:34,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:27:34" (1/1) ... [2018-09-20 15:27:34,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62df16fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:34, skipping insertion in model container [2018-09-20 15:27:34,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:27:34" (1/1) ... [2018-09-20 15:27:34,777 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:27:35,086 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:27:35,117 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:27:35,191 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:27:35,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:35 WrapperNode [2018-09-20 15:27:35,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:27:35,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:27:35,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:27:35,261 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:27:35,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:35" (1/1) ... [2018-09-20 15:27:35,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:35" (1/1) ... [2018-09-20 15:27:35,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:35" (1/1) ... [2018-09-20 15:27:35,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:35" (1/1) ... [2018-09-20 15:27:35,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:35" (1/1) ... [2018-09-20 15:27:35,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:35" (1/1) ... [2018-09-20 15:27:35,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:35" (1/1) ... [2018-09-20 15:27:35,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:27:35,354 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:27:35,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:27:35,355 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:27:35,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:35" (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 15:27:35,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:27:35,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:27:35,497 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-09-20 15:27:35,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-09-20 15:27:35,498 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-20 15:27:35,498 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:27:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:27:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:27:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-09-20 15:27:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:27:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-20 15:27:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:27:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:27:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-09-20 15:27:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:27:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-20 15:27:35,499 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-20 15:27:35,502 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:27:35,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:27:35,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:27:35,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:27:35,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-20 15:27:35,943 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:27:35,970 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:27:47,514 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:27:47,540 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:27:48,340 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:27:48,367 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:27:48,620 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:27:48,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:27:48 BoogieIcfgContainer [2018-09-20 15:27:48,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:27:48,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:27:48,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:27:48,626 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:27:48,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:27:34" (1/3) ... [2018-09-20 15:27:48,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60b50fb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:27:48, skipping insertion in model container [2018-09-20 15:27:48,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:27:35" (2/3) ... [2018-09-20 15:27:48,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60b50fb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:27:48, skipping insertion in model container [2018-09-20 15:27:48,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:27:48" (3/3) ... [2018-09-20 15:27:48,631 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920b_true-unreach-call.c [2018-09-20 15:27:48,641 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:27:48,651 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:27:48,703 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:27:48,704 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:27:48,704 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:27:48,704 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:27:48,704 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:27:48,705 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:27:48,705 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:27:48,705 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:27:48,705 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:27:48,727 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states. [2018-09-20 15:27:48,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-20 15:27:48,735 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:27:48,736 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] [2018-09-20 15:27:48,739 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:27:48,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1277566486, now seen corresponding path program 1 times [2018-09-20 15:27:48,749 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:27:48,749 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 15:27:48,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:27:49,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:27:49,049 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:27:49,067 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 15:27:49,067 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:27:49,086 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:27:49,087 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:27:49,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:27:49,106 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:27:49,107 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:27:49,110 INFO L87 Difference]: Start difference. First operand 66 states. Second operand 2 states. [2018-09-20 15:27:49,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:27:49,138 INFO L93 Difference]: Finished difference Result 124 states and 158 transitions. [2018-09-20 15:27:49,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:27:49,140 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-09-20 15:27:49,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:27:49,154 INFO L225 Difference]: With dead ends: 124 [2018-09-20 15:27:49,154 INFO L226 Difference]: Without dead ends: 62 [2018-09-20 15:27:49,158 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:27:49,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2018-09-20 15:27:49,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2018-09-20 15:27:49,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-09-20 15:27:49,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 72 transitions. [2018-09-20 15:27:49,210 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 72 transitions. Word has length 20 [2018-09-20 15:27:49,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:27:49,211 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 72 transitions. [2018-09-20 15:27:49,211 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:27:49,211 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 72 transitions. [2018-09-20 15:27:49,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-09-20 15:27:49,213 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:27:49,213 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] [2018-09-20 15:27:49,213 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:27:49,214 INFO L82 PathProgramCache]: Analyzing trace with hash 1730013961, now seen corresponding path program 1 times [2018-09-20 15:27:49,215 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:27:49,215 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-20 15:27:49,224 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-20 15:27:49,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:27:49,575 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:27:49,701 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 15:27:49,709 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 15:27:49,710 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:27:49,715 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:27:49,730 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 15:27:49,732 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:27:49,792 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 15:27:49,805 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 15:27:49,806 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:27:49,833 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:27:49,841 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 15:27:49,841 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:27:50,086 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 15:27:50,087 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:27:50,104 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:27:50,105 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-20 15:27:50,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-20 15:27:50,107 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-20 15:27:50,108 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-20 15:27:50,108 INFO L87 Difference]: Start difference. First operand 62 states and 72 transitions. Second operand 8 states. [2018-09-20 15:27:50,451 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-09-20 15:27:55,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:27:55,248 INFO L93 Difference]: Finished difference Result 80 states and 89 transitions. [2018-09-20 15:27:55,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-20 15:27:55,249 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 29 [2018-09-20 15:27:55,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:27:55,253 INFO L225 Difference]: With dead ends: 80 [2018-09-20 15:27:55,253 INFO L226 Difference]: Without dead ends: 70 [2018-09-20 15:27:55,255 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-09-20 15:27:55,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-09-20 15:27:55,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 62. [2018-09-20 15:27:55,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-09-20 15:27:55,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 71 transitions. [2018-09-20 15:27:55,266 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 71 transitions. Word has length 29 [2018-09-20 15:27:55,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:27:55,266 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 71 transitions. [2018-09-20 15:27:55,266 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-20 15:27:55,267 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 71 transitions. [2018-09-20 15:27:55,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-20 15:27:55,268 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:27:55,268 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 15:27:55,268 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:27:55,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1482119536, now seen corresponding path program 1 times [2018-09-20 15:27:55,269 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:27:55,270 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-20 15:27:55,280 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:27:55,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:27:55,567 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:27:58,189 WARN L178 SmtUtils]: Spent 1.49 s on a formula simplification that was a NOOP. DAG size: 11 [2018-09-20 15:27:58,643 WARN L178 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 3 [2018-09-20 15:27:58,649 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 15:27:58,649 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:27:58,666 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:27:58,667 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-20 15:27:58,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-20 15:27:58,668 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-20 15:27:58,668 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-09-20 15:27:58,669 INFO L87 Difference]: Start difference. First operand 62 states and 71 transitions. Second operand 10 states. [2018-09-20 15:28:02,809 WARN L178 SmtUtils]: Spent 832.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-20 15:28:04,139 WARN L178 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-09-20 15:28:17,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:28:17,306 INFO L93 Difference]: Finished difference Result 77 states and 86 transitions. [2018-09-20 15:28:17,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-20 15:28:17,307 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2018-09-20 15:28:17,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:28:17,310 INFO L225 Difference]: With dead ends: 77 [2018-09-20 15:28:17,311 INFO L226 Difference]: Without dead ends: 70 [2018-09-20 15:28:17,312 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-09-20 15:28:17,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-09-20 15:28:17,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 62. [2018-09-20 15:28:17,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-09-20 15:28:17,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 70 transitions. [2018-09-20 15:28:17,328 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 70 transitions. Word has length 30 [2018-09-20 15:28:17,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:28:17,328 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 70 transitions. [2018-09-20 15:28:17,329 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-20 15:28:17,329 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 70 transitions. [2018-09-20 15:28:17,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-20 15:28:17,330 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:28:17,330 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 15:28:17,331 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:28:17,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1234903141, now seen corresponding path program 1 times [2018-09-20 15:28:17,333 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:28:17,333 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 15:28:17,346 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:28:17,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:28:17,432 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:28:17,470 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 15:28:17,475 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 15:28:17,475 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:28:17,479 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:28:17,492 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 15:28:17,493 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:28:17,515 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 15:28:17,527 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 15:28:17,528 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:28:17,539 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:28:17,542 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 15:28:17,542 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:28:17,734 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 15:28:17,734 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:28:17,747 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:28:17,747 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-20 15:28:17,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-20 15:28:17,748 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-20 15:28:17,748 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-20 15:28:17,748 INFO L87 Difference]: Start difference. First operand 62 states and 70 transitions. Second operand 8 states. [2018-09-20 15:28:21,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:28:21,269 INFO L93 Difference]: Finished difference Result 70 states and 78 transitions. [2018-09-20 15:28:21,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-20 15:28:21,270 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2018-09-20 15:28:21,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:28:21,271 INFO L225 Difference]: With dead ends: 70 [2018-09-20 15:28:21,271 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:28:21,272 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-20 15:28:21,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:28:21,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:28:21,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:28:21,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:28:21,273 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-09-20 15:28:21,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:28:21,273 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:28:21,273 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-20 15:28:21,273 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:28:21,273 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:28:21,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:28:21,567 WARN L178 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 19 [2018-09-20 15:28:21,792 INFO L426 ceAbstractionStarter]: For program point isnan_floatFINAL(line 111) no Hoare annotation was computed. [2018-09-20 15:28:21,792 INFO L429 ceAbstractionStarter]: At program point isnan_floatENTRY(line 111) the Hoare annotation is: true [2018-09-20 15:28:21,792 INFO L426 ceAbstractionStarter]: For program point isnan_floatEXIT(line 111) no Hoare annotation was computed. [2018-09-20 15:28:21,792 INFO L426 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-09-20 15:28:21,792 INFO L426 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-09-20 15:28:21,793 INFO L426 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2018-09-20 15:28:21,793 INFO L426 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-09-20 15:28:21,793 INFO L426 ceAbstractionStarter]: For program point L18-2(line 18) no Hoare annotation was computed. [2018-09-20 15:28:21,793 INFO L426 ceAbstractionStarter]: For program point isinf_floatENTRY(lines 13 22) no Hoare annotation was computed. [2018-09-20 15:28:21,793 INFO L426 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2018-09-20 15:28:21,793 INFO L426 ceAbstractionStarter]: For program point L16-2(line 16) no Hoare annotation was computed. [2018-09-20 15:28:21,794 INFO L426 ceAbstractionStarter]: For program point L15-1(lines 15 19) no Hoare annotation was computed. [2018-09-20 15:28:21,795 INFO L426 ceAbstractionStarter]: For program point L16-3(line 16) no Hoare annotation was computed. [2018-09-20 15:28:21,795 INFO L426 ceAbstractionStarter]: For program point L15-3(lines 15 19) no Hoare annotation was computed. [2018-09-20 15:28:21,795 INFO L426 ceAbstractionStarter]: For program point L15-4(lines 15 19) no Hoare annotation was computed. [2018-09-20 15:28:21,795 INFO L426 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 13 22) no Hoare annotation was computed. [2018-09-20 15:28:21,795 INFO L426 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 13 22) no Hoare annotation was computed. [2018-09-20 15:28:21,795 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:28:21,795 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:28:21,796 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:28:21,796 INFO L426 ceAbstractionStarter]: For program point L52-1(lines 52 56) no Hoare annotation was computed. [2018-09-20 15:28:21,796 INFO L422 ceAbstractionStarter]: At program point L52-3(lines 52 56) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0)) (and (exists ((__ieee754_logf_~ix~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|) (not (bvslt __ieee754_logf_~ix~1 (_ bv0 32))))) (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|))) [2018-09-20 15:28:21,796 INFO L426 ceAbstractionStarter]: For program point L69(lines 69 76) no Hoare annotation was computed. [2018-09-20 15:28:21,796 INFO L426 ceAbstractionStarter]: For program point L36-1(lines 36 40) no Hoare annotation was computed. [2018-09-20 15:28:21,796 INFO L422 ceAbstractionStarter]: At program point L36-3(lines 36 40) the Hoare annotation is: (or (= __ieee754_logf_~x |__ieee754_logf_#in~x|) (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0))) [2018-09-20 15:28:21,796 INFO L426 ceAbstractionStarter]: For program point L36-4(lines 36 40) no Hoare annotation was computed. [2018-09-20 15:28:21,797 INFO L426 ceAbstractionStarter]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2018-09-20 15:28:21,797 INFO L429 ceAbstractionStarter]: At program point __ieee754_logfENTRY(lines 32 108) the Hoare annotation is: true [2018-09-20 15:28:21,797 INFO L422 ceAbstractionStarter]: At program point L61-3(lines 61 65) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0)) (exists ((__ieee754_logf_~ix~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|) (not (bvslt __ieee754_logf_~ix~1 (_ bv0 32)))))) [2018-09-20 15:28:21,797 INFO L426 ceAbstractionStarter]: For program point __ieee754_logfFINAL(lines 32 108) no Hoare annotation was computed. [2018-09-20 15:28:21,797 INFO L426 ceAbstractionStarter]: For program point L61-4(lines 61 65) no Hoare annotation was computed. [2018-09-20 15:28:21,797 INFO L426 ceAbstractionStarter]: For program point L53(line 53) no Hoare annotation was computed. [2018-09-20 15:28:21,797 INFO L426 ceAbstractionStarter]: For program point L53-1(line 53) no Hoare annotation was computed. [2018-09-20 15:28:21,798 INFO L426 ceAbstractionStarter]: For program point L53-2(line 53) no Hoare annotation was computed. [2018-09-20 15:28:21,798 INFO L426 ceAbstractionStarter]: For program point L53-3(line 53) no Hoare annotation was computed. [2018-09-20 15:28:21,798 INFO L426 ceAbstractionStarter]: For program point L78(lines 78 83) no Hoare annotation was computed. [2018-09-20 15:28:21,798 INFO L426 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-09-20 15:28:21,798 INFO L426 ceAbstractionStarter]: For program point L103(lines 103 106) no Hoare annotation was computed. [2018-09-20 15:28:21,798 INFO L426 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2018-09-20 15:28:21,798 INFO L426 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-09-20 15:28:21,798 INFO L426 ceAbstractionStarter]: For program point L37-1(line 37) no Hoare annotation was computed. [2018-09-20 15:28:21,799 INFO L426 ceAbstractionStarter]: For program point L37-2(line 37) no Hoare annotation was computed. [2018-09-20 15:28:21,799 INFO L426 ceAbstractionStarter]: For program point L37-3(line 37) no Hoare annotation was computed. [2018-09-20 15:28:21,799 INFO L426 ceAbstractionStarter]: For program point L95(lines 95 107) no Hoare annotation was computed. [2018-09-20 15:28:21,799 INFO L426 ceAbstractionStarter]: For program point L62(line 62) no Hoare annotation was computed. [2018-09-20 15:28:21,799 INFO L426 ceAbstractionStarter]: For program point L62-1(line 62) no Hoare annotation was computed. [2018-09-20 15:28:21,799 INFO L426 ceAbstractionStarter]: For program point L62-2(line 62) no Hoare annotation was computed. [2018-09-20 15:28:21,799 INFO L426 ceAbstractionStarter]: For program point L62-3(line 62) no Hoare annotation was computed. [2018-09-20 15:28:21,799 INFO L426 ceAbstractionStarter]: For program point L54(line 54) no Hoare annotation was computed. [2018-09-20 15:28:21,800 INFO L426 ceAbstractionStarter]: For program point L38(line 38) no Hoare annotation was computed. [2018-09-20 15:28:21,800 INFO L426 ceAbstractionStarter]: For program point L63(line 63) no Hoare annotation was computed. [2018-09-20 15:28:21,800 INFO L426 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-09-20 15:28:21,800 INFO L426 ceAbstractionStarter]: For program point L55-1(line 55) no Hoare annotation was computed. [2018-09-20 15:28:21,800 INFO L426 ceAbstractionStarter]: For program point L55-2(line 55) no Hoare annotation was computed. [2018-09-20 15:28:21,800 INFO L426 ceAbstractionStarter]: For program point L47(lines 47 48) no Hoare annotation was computed. [2018-09-20 15:28:21,800 INFO L426 ceAbstractionStarter]: For program point L39(line 39) no Hoare annotation was computed. [2018-09-20 15:28:21,800 INFO L426 ceAbstractionStarter]: For program point L39-1(line 39) no Hoare annotation was computed. [2018-09-20 15:28:21,801 INFO L426 ceAbstractionStarter]: For program point L39-2(line 39) no Hoare annotation was computed. [2018-09-20 15:28:21,801 INFO L426 ceAbstractionStarter]: For program point L97(lines 97 101) no Hoare annotation was computed. [2018-09-20 15:28:21,801 INFO L426 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-09-20 15:28:21,801 INFO L426 ceAbstractionStarter]: For program point L64-1(line 64) no Hoare annotation was computed. [2018-09-20 15:28:21,801 INFO L426 ceAbstractionStarter]: For program point L64-2(line 64) no Hoare annotation was computed. [2018-09-20 15:28:21,801 INFO L426 ceAbstractionStarter]: For program point L49(lines 49 57) no Hoare annotation was computed. [2018-09-20 15:28:21,801 INFO L426 ceAbstractionStarter]: For program point L49-1(lines 49 57) no Hoare annotation was computed. [2018-09-20 15:28:21,801 INFO L426 ceAbstractionStarter]: For program point __ieee754_logfEXIT(lines 32 108) no Hoare annotation was computed. [2018-09-20 15:28:21,802 INFO L426 ceAbstractionStarter]: For program point L43(lines 43 44) no Hoare annotation was computed. [2018-09-20 15:28:21,802 INFO L426 ceAbstractionStarter]: For program point L68(lines 68 84) no Hoare annotation was computed. [2018-09-20 15:28:21,802 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:28:21,802 INFO L422 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0) [2018-09-20 15:28:21,802 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:28:21,802 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:28:21,802 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 113 130) the Hoare annotation is: true [2018-09-20 15:28:21,803 INFO L426 ceAbstractionStarter]: For program point L125(line 125) no Hoare annotation was computed. [2018-09-20 15:28:21,803 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 113 130) no Hoare annotation was computed. [2018-09-20 15:28:21,803 INFO L422 ceAbstractionStarter]: At program point L124(line 124) the Hoare annotation is: (let ((.cse1 ((_ to_fp 8 24) RNE (_ +zero 11 53)))) (or (let ((.cse0 (fp.div RNE (fp.neg ((_ to_fp 8 24) RNE 1.0)) (_ +zero 8 24)))) (and (= .cse0 main_~x~0) (= main_~res~0 (fp.div RNE (fp.sub RNE .cse0 .cse0) .cse1)))) (not (= .cse1 ~zero_log~0)))) [2018-09-20 15:28:21,803 INFO L426 ceAbstractionStarter]: For program point L124-1(lines 124 127) no Hoare annotation was computed. [2018-09-20 15:28:21,803 INFO L422 ceAbstractionStarter]: At program point L121(line 121) the Hoare annotation is: (or (= (fp.div RNE (fp.neg ((_ to_fp 8 24) RNE 1.0)) (_ +zero 8 24)) main_~x~0) (not (= ((_ to_fp 8 24) RNE (_ +zero 11 53)) ~zero_log~0))) [2018-09-20 15:28:21,804 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 113 130) no Hoare annotation was computed. [2018-09-20 15:28:21,804 INFO L426 ceAbstractionStarter]: For program point L121-1(line 121) no Hoare annotation was computed. [2018-09-20 15:28:21,804 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 125) no Hoare annotation was computed. [2018-09-20 15:28:21,812 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:28:21,813 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:21,814 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:21,814 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:21,814 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:21,818 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:28:21,819 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:21,819 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:21,819 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:21,819 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:21,821 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:28:21,821 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:28:21,822 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:28:21,822 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:21,822 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:21,822 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:21,823 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:21,823 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:28:21,824 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:21,824 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:21,824 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:21,824 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:21,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:28:21 BoogieIcfgContainer [2018-09-20 15:28:21,827 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:28:21,827 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:28:21,827 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:28:21,828 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:28:21,828 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:27:48" (3/4) ... [2018-09-20 15:28:21,832 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 15:28:21,841 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-09-20 15:28:21,841 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 15:28:21,841 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-09-20 15:28:21,841 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_logf [2018-09-20 15:28:21,842 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 15:28:21,849 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2018-09-20 15:28:21,849 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-09-20 15:28:21,850 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-09-20 15:28:21,850 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 15:28:21,880 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero_log) [2018-09-20 15:28:21,881 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero_log) || ((\exists __ieee754_logf_~ix~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == \old(x)) [2018-09-20 15:28:21,881 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero_log) || (\exists __ieee754_logf_~ix~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) [2018-09-20 15:28:21,942 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:28:21,942 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:28:21,943 INFO L168 Benchmark]: Toolchain (without parser) took 47200.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 953.2 MB in the beginning and 855.9 MB in the end (delta: 97.3 MB). Peak memory consumption was 220.0 MB. Max. memory is 11.5 GB. [2018-09-20 15:28:21,944 INFO L168 Benchmark]: CDTParser took 0.25 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 15:28:21,945 INFO L168 Benchmark]: CACSL2BoogieTranslator took 510.74 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 15:28:21,945 INFO L168 Benchmark]: Boogie Preprocessor took 93.69 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 15:28:21,946 INFO L168 Benchmark]: RCFGBuilder took 13266.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -138.4 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2018-09-20 15:28:21,946 INFO L168 Benchmark]: TraceAbstraction took 33204.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 862.8 MB in the end (delta: 212.7 MB). Peak memory consumption was 212.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:28:21,948 INFO L168 Benchmark]: Witness Printer took 114.63 ms. Allocated memory is still 1.2 GB. Free memory was 862.8 MB in the beginning and 855.9 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-09-20 15:28:21,951 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 510.74 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 93.69 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 13266.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -138.4 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 33204.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 862.8 MB in the end (delta: 212.7 MB). Peak memory consumption was 212.7 MB. Max. memory is 11.5 GB. * Witness Printer took 114.63 ms. Allocated memory is still 1.2 GB. Free memory was 862.8 MB in the beginning and 855.9 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 125]: 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: 61]: Loop Invariant [2018-09-20 15:28:21,963 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:28:21,963 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:21,964 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:21,964 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:21,964 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:21,973 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:28:21,973 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:21,973 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:21,973 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:21,973 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] Derived loop invariant: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero_log) || (\exists __ieee754_logf_~ix~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) - InvariantResult [Line: 36]: Loop Invariant [2018-09-20 15:28:21,974 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:28:21,974 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE Derived loop invariant: x == \old(x) || !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero_log) - InvariantResult [Line: 52]: Loop Invariant [2018-09-20 15:28:21,975 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:28:21,975 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:21,975 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:21,975 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:21,975 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:21,976 WARN L389 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression RoundingMode_RNE [2018-09-20 15:28:21,976 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:21,976 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:21,977 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-09-20 15:28:21,977 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] Derived loop invariant: !(~to_fp~LONGDOUBLE(RoundingMode_RNE, ~Pluszero~LONGDOUBLE()) == zero_log) || ((\exists __ieee754_logf_~ix~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == \old(x)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 80 locations, 1 error locations. SAFE Result, 33.1s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 27.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 246 SDtfs, 182 SDslu, 908 SDs, 0 SdLazy, 265 SolverSat, 16 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 23.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 125 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=66occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 14 PreInvPairs, 19 NumberOfFragments, 130 HoareAnnotationTreeSize, 14 FomulaSimplifications, 45 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 61 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 106 ConstructedInterpolants, 5 QuantifiedInterpolants, 18044 SizeOfPredicates, 19 NumberOfNonLiveVariables, 364 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...