./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/float_req_bl_0831_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-newlib/float_req_bl_0831_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 14218179970cdda4c2f749c75b7f78aa74dcc86b .................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-newlib/float_req_bl_0831_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 14218179970cdda4c2f749c75b7f78aa74dcc86b .................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-12 09:13:27,011 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 09:13:27,013 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 09:13:27,031 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 09:13:27,032 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 09:13:27,034 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 09:13:27,036 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 09:13:27,038 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 09:13:27,042 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 09:13:27,043 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 09:13:27,044 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 09:13:27,046 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 09:13:27,048 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 09:13:27,050 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 09:13:27,059 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 09:13:27,060 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 09:13:27,060 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 09:13:27,062 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 09:13:27,064 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 09:13:27,066 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 09:13:27,067 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 09:13:27,068 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 09:13:27,070 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 09:13:27,071 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 09:13:27,071 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 09:13:27,072 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 09:13:27,073 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 09:13:27,073 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 09:13:27,074 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 09:13:27,075 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 09:13:27,076 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 09:13:27,076 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 09:13:27,076 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 09:13:27,077 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 09:13:27,078 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 09:13:27,079 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 09:13:27,079 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 09:13:27,102 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 09:13:27,102 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 09:13:27,103 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 09:13:27,104 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 09:13:27,105 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 09:13:27,105 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 09:13:27,105 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 09:13:27,105 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 09:13:27,105 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 09:13:27,106 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 09:13:27,106 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 09:13:27,106 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 09:13:27,106 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 09:13:27,107 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 09:13:27,107 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 09:13:27,107 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 09:13:27,107 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 09:13:27,107 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 09:13:27,107 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 09:13:27,108 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 09:13:27,108 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 09:13:27,108 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 09:13:27,108 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 09:13:27,108 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 09:13:27,108 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 09:13:27,109 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 09:13:27,111 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 09:13:27,111 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 09:13:27,111 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 -> 14218179970cdda4c2f749c75b7f78aa74dcc86b [2019-01-12 09:13:27,178 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 09:13:27,195 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 09:13:27,201 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 09:13:27,202 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 09:13:27,204 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 09:13:27,204 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_0831_true-unreach-call.c [2019-01-12 09:13:27,263 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d25bff6e/74dc66e60f304641beee7f8715e480d7/FLAGc10c6fcec [2019-01-12 09:13:27,666 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 09:13:27,667 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_0831_true-unreach-call.c [2019-01-12 09:13:27,675 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d25bff6e/74dc66e60f304641beee7f8715e480d7/FLAGc10c6fcec [2019-01-12 09:13:28,043 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d25bff6e/74dc66e60f304641beee7f8715e480d7 [2019-01-12 09:13:28,046 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 09:13:28,048 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 09:13:28,049 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 09:13:28,049 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 09:13:28,053 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 09:13:28,054 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 09:13:28" (1/1) ... [2019-01-12 09:13:28,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5331e857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:13:28, skipping insertion in model container [2019-01-12 09:13:28,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 09:13:28" (1/1) ... [2019-01-12 09:13:28,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 09:13:28,090 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 09:13:28,389 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 09:13:28,403 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 09:13:28,472 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 09:13:28,575 INFO L195 MainTranslator]: Completed translation [2019-01-12 09:13:28,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:13:28 WrapperNode [2019-01-12 09:13:28,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 09:13:28,576 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 09:13:28,577 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 09:13:28,577 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 09:13:28,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:13:28" (1/1) ... [2019-01-12 09:13:28,607 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:13:28" (1/1) ... [2019-01-12 09:13:28,668 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 09:13:28,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 09:13:28,669 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 09:13:28,669 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 09:13:28,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:13:28" (1/1) ... [2019-01-12 09:13:28,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:13:28" (1/1) ... [2019-01-12 09:13:28,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:13:28" (1/1) ... [2019-01-12 09:13:28,687 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:13:28" (1/1) ... [2019-01-12 09:13:28,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:13:28" (1/1) ... [2019-01-12 09:13:28,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:13:28" (1/1) ... [2019-01-12 09:13:28,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:13:28" (1/1) ... [2019-01-12 09:13:28,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 09:13:28,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 09:13:28,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 09:13:28,739 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 09:13:28,743 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:13:28" (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 [2019-01-12 09:13:28,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-12 09:13:28,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-12 09:13:28,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-01-12 09:13:28,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-01-12 09:13:28,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 09:13:28,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 09:13:28,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-12 09:13:28,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-01-12 09:13:28,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-12 09:13:29,565 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 09:13:29,565 INFO L286 CfgBuilder]: Removed 18 assue(true) statements. [2019-01-12 09:13:29,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 09:13:29 BoogieIcfgContainer [2019-01-12 09:13:29,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 09:13:29,568 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 09:13:29,568 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 09:13:29,572 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 09:13:29,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 09:13:28" (1/3) ... [2019-01-12 09:13:29,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42dc2552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 09:13:29, skipping insertion in model container [2019-01-12 09:13:29,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:13:28" (2/3) ... [2019-01-12 09:13:29,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42dc2552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 09:13:29, skipping insertion in model container [2019-01-12 09:13:29,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 09:13:29" (3/3) ... [2019-01-12 09:13:29,575 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0831_true-unreach-call.c [2019-01-12 09:13:29,586 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 09:13:29,594 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 09:13:29,613 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 09:13:29,645 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 09:13:29,646 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 09:13:29,646 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 09:13:29,646 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 09:13:29,647 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 09:13:29,647 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 09:13:29,647 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 09:13:29,647 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 09:13:29,647 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 09:13:29,662 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-01-12 09:13:29,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-01-12 09:13:29,669 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 09:13:29,670 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 09:13:29,672 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 09:13:29,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 09:13:29,677 INFO L82 PathProgramCache]: Analyzing trace with hash -1903272656, now seen corresponding path program 1 times [2019-01-12 09:13:29,679 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 09:13:29,679 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 09:13:29,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 09:13:29,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 09:13:29,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 09:13:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 09:13:29,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 09:13:29,808 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 09:13:29,808 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-12 09:13:29,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-01-12 09:13:29,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-01-12 09:13:29,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-12 09:13:29,825 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-01-12 09:13:29,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 09:13:29,844 INFO L93 Difference]: Finished difference Result 72 states and 114 transitions. [2019-01-12 09:13:29,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-01-12 09:13:29,845 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-01-12 09:13:29,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 09:13:29,857 INFO L225 Difference]: With dead ends: 72 [2019-01-12 09:13:29,857 INFO L226 Difference]: Without dead ends: 34 [2019-01-12 09:13:29,861 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-12 09:13:29,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-01-12 09:13:29,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-01-12 09:13:29,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-01-12 09:13:29,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2019-01-12 09:13:29,897 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 9 [2019-01-12 09:13:29,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 09:13:29,898 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2019-01-12 09:13:29,898 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-01-12 09:13:29,898 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2019-01-12 09:13:29,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-01-12 09:13:29,899 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 09:13:29,899 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 09:13:29,899 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 09:13:29,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 09:13:29,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1485078157, now seen corresponding path program 1 times [2019-01-12 09:13:29,900 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 09:13:29,900 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 09:13:29,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 09:13:29,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 09:13:29,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 09:13:29,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 09:13:30,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 09:13:30,068 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-12 09:13:30,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 09:13:30 BoogieIcfgContainer [2019-01-12 09:13:30,123 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 09:13:30,123 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 09:13:30,123 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 09:13:30,123 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 09:13:30,124 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 09:13:29" (3/4) ... [2019-01-12 09:13:30,129 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-12 09:13:30,130 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 09:13:30,131 INFO L168 Benchmark]: Toolchain (without parser) took 2083.66 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 63.4 MB). Free memory was 952.7 MB in the beginning and 994.0 MB in the end (delta: -41.3 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2019-01-12 09:13:30,133 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 09:13:30,134 INFO L168 Benchmark]: CACSL2BoogieTranslator took 527.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 63.4 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -105.3 MB). Peak memory consumption was 29.3 MB. Max. memory is 11.5 GB. [2019-01-12 09:13:30,135 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-01-12 09:13:30,137 INFO L168 Benchmark]: Boogie Preprocessor took 70.24 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. [2019-01-12 09:13:30,137 INFO L168 Benchmark]: RCFGBuilder took 828.07 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: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. [2019-01-12 09:13:30,138 INFO L168 Benchmark]: TraceAbstraction took 554.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 994.0 MB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2019-01-12 09:13:30,140 INFO L168 Benchmark]: Witness Printer took 6.72 ms. Allocated memory is still 1.1 GB. Free memory is still 994.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 09:13:30,146 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 527.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 63.4 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -105.3 MB). Peak memory consumption was 29.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 91.72 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 70.24 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 828.07 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: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 554.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 994.0 MB in the end (delta: 28.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. * Witness Printer took 6.72 ms. Allocated memory is still 1.1 GB. Free memory is still 994.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 121]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of someUnaryDOUBLEoperation at line 19, overapproximation of bitwiseAnd at line 46, overapproximation of someBinaryArithmeticFLOAToperation at line 50. Possible FailurePath: [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L116] float x = 0.0f / 0.0f; [L37] float y, hi, lo, c, t; [L38] __int32_t k = 0, xsb, sx; [L39] __uint32_t hx; VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L42] ieee_float_shape_type gf_u; [L43] gf_u.value = (x) [L44] EXPR gf_u.word [L44] (sx) = gf_u.word [L46] xsb = (sx >> 31) & 1 [L47] hx = sx & 0x7fffffff VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L49] COND TRUE ((hx) > 0x7f800000L) [L50] return x + x; VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L117] float res = __ieee754_expf(x); [L13] return x != x; VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L120] COND TRUE !isnan_float(res) [L121] __VERIFIER_error() VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 47 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-0ed9222-m [2019-01-12 09:13:32,478 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 09:13:32,480 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 09:13:32,493 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 09:13:32,493 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 09:13:32,495 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 09:13:32,496 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 09:13:32,498 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 09:13:32,500 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 09:13:32,501 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 09:13:32,503 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 09:13:32,503 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 09:13:32,504 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 09:13:32,505 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 09:13:32,507 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 09:13:32,508 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 09:13:32,509 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 09:13:32,511 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 09:13:32,514 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 09:13:32,516 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 09:13:32,517 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 09:13:32,519 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 09:13:32,522 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 09:13:32,522 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 09:13:32,522 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 09:13:32,524 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 09:13:32,525 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 09:13:32,526 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 09:13:32,526 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 09:13:32,528 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 09:13:32,528 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 09:13:32,529 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 09:13:32,529 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 09:13:32,529 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 09:13:32,531 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 09:13:32,532 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 09:13:32,532 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-01-12 09:13:32,558 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 09:13:32,559 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 09:13:32,561 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 09:13:32,562 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 09:13:32,563 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 09:13:32,563 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 09:13:32,563 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 09:13:32,564 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 09:13:32,564 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 09:13:32,564 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 09:13:32,565 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 09:13:32,565 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 09:13:32,565 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2019-01-12 09:13:32,565 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-01-12 09:13:32,566 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 09:13:32,566 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 09:13:32,566 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 09:13:32,566 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 09:13:32,567 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 09:13:32,567 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 09:13:32,567 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 09:13:32,567 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 09:13:32,567 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 09:13:32,568 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 09:13:32,570 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 09:13:32,570 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 09:13:32,571 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2019-01-12 09:13:32,571 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 09:13:32,571 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-01-12 09:13:32,571 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2019-01-12 09:13:32,571 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 -> 14218179970cdda4c2f749c75b7f78aa74dcc86b [2019-01-12 09:13:32,634 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 09:13:32,649 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 09:13:32,656 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 09:13:32,658 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 09:13:32,658 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 09:13:32,659 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_0831_true-unreach-call.c [2019-01-12 09:13:32,725 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f3fac782/bd944f51a111445a81a42e17df181d7c/FLAGac747ac91 [2019-01-12 09:13:33,191 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 09:13:33,191 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_0831_true-unreach-call.c [2019-01-12 09:13:33,199 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f3fac782/bd944f51a111445a81a42e17df181d7c/FLAGac747ac91 [2019-01-12 09:13:33,572 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f3fac782/bd944f51a111445a81a42e17df181d7c [2019-01-12 09:13:33,576 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 09:13:33,577 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 09:13:33,578 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 09:13:33,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 09:13:33,582 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 09:13:33,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 09:13:33" (1/1) ... [2019-01-12 09:13:33,587 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cc91edd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:13:33, skipping insertion in model container [2019-01-12 09:13:33,587 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 09:13:33" (1/1) ... [2019-01-12 09:13:33,596 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 09:13:33,628 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 09:13:33,959 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 09:13:33,981 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 09:13:34,054 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 09:13:34,099 INFO L195 MainTranslator]: Completed translation [2019-01-12 09:13:34,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:13:34 WrapperNode [2019-01-12 09:13:34,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 09:13:34,101 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 09:13:34,101 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 09:13:34,101 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 09:13:34,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:13:34" (1/1) ... [2019-01-12 09:13:34,186 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:13:34" (1/1) ... [2019-01-12 09:13:34,218 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 09:13:34,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 09:13:34,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 09:13:34,219 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 09:13:34,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:13:34" (1/1) ... [2019-01-12 09:13:34,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:13:34" (1/1) ... [2019-01-12 09:13:34,235 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:13:34" (1/1) ... [2019-01-12 09:13:34,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:13:34" (1/1) ... [2019-01-12 09:13:34,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:13:34" (1/1) ... [2019-01-12 09:13:34,257 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:13:34" (1/1) ... [2019-01-12 09:13:34,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:13:34" (1/1) ... [2019-01-12 09:13:34,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 09:13:34,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 09:13:34,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 09:13:34,267 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 09:13:34,268 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:13:34" (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 [2019-01-12 09:13:34,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-01-12 09:13:34,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-12 09:13:34,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-01-12 09:13:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-01-12 09:13:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 09:13:34,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 09:13:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-01-12 09:13:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-01-12 09:13:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-12 09:13:34,561 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 09:13:34,628 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 09:13:43,693 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 09:13:43,733 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 09:13:43,857 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 09:13:43,857 INFO L286 CfgBuilder]: Removed 18 assue(true) statements. [2019-01-12 09:13:43,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 09:13:43 BoogieIcfgContainer [2019-01-12 09:13:43,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 09:13:43,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 09:13:43,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 09:13:43,863 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 09:13:43,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 09:13:33" (1/3) ... [2019-01-12 09:13:43,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c662089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 09:13:43, skipping insertion in model container [2019-01-12 09:13:43,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:13:34" (2/3) ... [2019-01-12 09:13:43,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c662089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 09:13:43, skipping insertion in model container [2019-01-12 09:13:43,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 09:13:43" (3/3) ... [2019-01-12 09:13:43,868 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0831_true-unreach-call.c [2019-01-12 09:13:43,878 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 09:13:43,886 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 09:13:43,902 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 09:13:43,930 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 09:13:43,931 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 09:13:43,931 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 09:13:43,931 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 09:13:43,931 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 09:13:43,932 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 09:13:43,932 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 09:13:43,933 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 09:13:43,933 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 09:13:43,948 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2019-01-12 09:13:43,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-01-12 09:13:43,954 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 09:13:43,955 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 09:13:43,957 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 09:13:43,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 09:13:43,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1903272656, now seen corresponding path program 1 times [2019-01-12 09:13:43,968 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2019-01-12 09:13:43,969 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 [2019-01-12 09:13:43,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 09:13:44,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 09:13:44,094 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 09:13:44,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 09:13:44,109 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-12 09:13:44,126 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 09:13:44,126 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-12 09:13:44,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-01-12 09:13:44,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-01-12 09:13:44,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-12 09:13:44,148 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2019-01-12 09:13:44,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 09:13:44,170 INFO L93 Difference]: Finished difference Result 72 states and 114 transitions. [2019-01-12 09:13:44,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-01-12 09:13:44,171 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-01-12 09:13:44,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 09:13:44,182 INFO L225 Difference]: With dead ends: 72 [2019-01-12 09:13:44,183 INFO L226 Difference]: Without dead ends: 34 [2019-01-12 09:13:44,186 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-12 09:13:44,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-01-12 09:13:44,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-01-12 09:13:44,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-01-12 09:13:44,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2019-01-12 09:13:44,220 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 9 [2019-01-12 09:13:44,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 09:13:44,220 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2019-01-12 09:13:44,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-01-12 09:13:44,221 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2019-01-12 09:13:44,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-01-12 09:13:44,221 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 09:13:44,222 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 09:13:44,223 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 09:13:44,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 09:13:44,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1485078157, now seen corresponding path program 1 times [2019-01-12 09:13:44,225 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2019-01-12 09:13:44,225 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-01-12 09:13:44,238 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 09:13:44,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 09:13:44,330 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 09:13:44,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 09:13:44,634 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-12 09:13:44,646 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 09:13:44,646 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-12 09:13:44,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-12 09:13:44,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-12 09:13:44,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-01-12 09:13:44,648 INFO L87 Difference]: Start difference. First operand 34 states and 44 transitions. Second operand 6 states. [2019-01-12 09:13:57,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 09:13:57,522 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2019-01-12 09:13:57,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-12 09:13:57,523 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-01-12 09:13:57,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 09:13:57,524 INFO L225 Difference]: With dead ends: 49 [2019-01-12 09:13:57,524 INFO L226 Difference]: Without dead ends: 41 [2019-01-12 09:13:57,526 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-01-12 09:13:57,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2019-01-12 09:13:57,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 34. [2019-01-12 09:13:57,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-01-12 09:13:57,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2019-01-12 09:13:57,533 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 10 [2019-01-12 09:13:57,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 09:13:57,533 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2019-01-12 09:13:57,533 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-12 09:13:57,534 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2019-01-12 09:13:57,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-01-12 09:13:57,535 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 09:13:57,535 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 09:13:57,535 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 09:13:57,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 09:13:57,536 INFO L82 PathProgramCache]: Analyzing trace with hash 228797714, now seen corresponding path program 1 times [2019-01-12 09:13:57,537 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2019-01-12 09:13:57,537 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 [2019-01-12 09:13:57,542 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 09:13:57,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 09:13:57,676 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 09:13:57,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 09:13:57,738 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-12 09:13:57,749 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 09:13:57,749 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-12 09:13:57,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-12 09:13:57,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-12 09:13:57,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-01-12 09:13:57,750 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand 5 states. [2019-01-12 09:13:57,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 09:13:57,816 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2019-01-12 09:13:57,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-12 09:13:57,817 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-01-12 09:13:57,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 09:13:57,817 INFO L225 Difference]: With dead ends: 34 [2019-01-12 09:13:57,817 INFO L226 Difference]: Without dead ends: 0 [2019-01-12 09:13:57,818 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-01-12 09:13:57,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-12 09:13:57,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-12 09:13:57,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-12 09:13:57,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-12 09:13:57,819 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2019-01-12 09:13:57,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 09:13:57,819 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-12 09:13:57,819 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-12 09:13:57,820 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-12 09:13:57,820 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-12 09:13:57,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-12 09:13:58,006 INFO L448 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2019-01-12 09:13:58,006 INFO L448 ceAbstractionStarter]: For program point L52-2(line 52) no Hoare annotation was computed. [2019-01-12 09:13:58,006 INFO L448 ceAbstractionStarter]: For program point L102(lines 102 106) no Hoare annotation was computed. [2019-01-12 09:13:58,006 INFO L448 ceAbstractionStarter]: For program point L102-1(lines 95 108) no Hoare annotation was computed. [2019-01-12 09:13:58,006 INFO L448 ceAbstractionStarter]: For program point L102-2(lines 102 106) no Hoare annotation was computed. [2019-01-12 09:13:58,007 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-12 09:13:58,007 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-12 09:13:58,007 INFO L448 ceAbstractionStarter]: For program point L53(lines 53 54) no Hoare annotation was computed. [2019-01-12 09:13:58,007 INFO L448 ceAbstractionStarter]: For program point L78(lines 78 81) no Hoare annotation was computed. [2019-01-12 09:13:58,007 INFO L448 ceAbstractionStarter]: For program point L70(lines 70 73) no Hoare annotation was computed. [2019-01-12 09:13:58,007 INFO L448 ceAbstractionStarter]: For program point L70-2(lines 58 73) no Hoare annotation was computed. [2019-01-12 09:13:58,008 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 121) no Hoare annotation was computed. [2019-01-12 09:13:58,008 INFO L448 ceAbstractionStarter]: For program point L120(lines 120 123) no Hoare annotation was computed. [2019-01-12 09:13:58,008 INFO L444 ceAbstractionStarter]: At program point L13(line 13) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= (bvadd |ULTIMATE.start_isnan_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= |ULTIMATE.start___ieee754_expf_#res| (fp.add roundNearestTiesToEven .cse0 .cse0)) (= ULTIMATE.start___ieee754_expf_~x .cse0))) [2019-01-12 09:13:58,008 INFO L448 ceAbstractionStarter]: For program point L71(lines 71 72) no Hoare annotation was computed. [2019-01-12 09:13:58,009 INFO L448 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2019-01-12 09:13:58,009 INFO L448 ceAbstractionStarter]: For program point L55(lines 55 56) no Hoare annotation was computed. [2019-01-12 09:13:58,009 INFO L448 ceAbstractionStarter]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2019-01-12 09:13:58,009 INFO L444 ceAbstractionStarter]: At program point L97-2(lines 97 101) the Hoare annotation is: false [2019-01-12 09:13:58,009 INFO L448 ceAbstractionStarter]: For program point L89(lines 89 93) no Hoare annotation was computed. [2019-01-12 09:13:58,009 INFO L448 ceAbstractionStarter]: For program point L89-1(lines 82 95) no Hoare annotation was computed. [2019-01-12 09:13:58,009 INFO L448 ceAbstractionStarter]: For program point L89-2(lines 89 93) no Hoare annotation was computed. [2019-01-12 09:13:58,010 INFO L448 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-01-12 09:13:58,010 INFO L448 ceAbstractionStarter]: For program point L82(lines 82 108) no Hoare annotation was computed. [2019-01-12 09:13:58,010 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2019-01-12 09:13:58,010 INFO L444 ceAbstractionStarter]: At program point L107(lines 36 109) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= |ULTIMATE.start___ieee754_expf_#res| (fp.add roundNearestTiesToEven .cse0 .cse0)) (= ULTIMATE.start___ieee754_expf_~x .cse0))) [2019-01-12 09:13:58,010 INFO L448 ceAbstractionStarter]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2019-01-12 09:13:58,010 INFO L444 ceAbstractionStarter]: At program point L41-2(lines 41 45) the Hoare annotation is: (= ULTIMATE.start___ieee754_expf_~x (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2019-01-12 09:13:58,011 INFO L448 ceAbstractionStarter]: For program point L41-3(lines 41 45) no Hoare annotation was computed. [2019-01-12 09:13:58,011 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-12 09:13:58,011 INFO L448 ceAbstractionStarter]: For program point L58(lines 58 73) no Hoare annotation was computed. [2019-01-12 09:13:58,011 INFO L451 ceAbstractionStarter]: At program point L125(lines 111 126) the Hoare annotation is: true [2019-01-12 09:13:58,011 INFO L448 ceAbstractionStarter]: For program point L59(lines 59 68) no Hoare annotation was computed. [2019-01-12 09:13:58,011 INFO L448 ceAbstractionStarter]: For program point L59-2(lines 59 68) no Hoare annotation was computed. [2019-01-12 09:13:58,011 INFO L448 ceAbstractionStarter]: For program point L51(lines 51 52) no Hoare annotation was computed. [2019-01-12 09:13:58,012 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2019-01-12 09:13:58,012 INFO L444 ceAbstractionStarter]: At program point L84-2(lines 84 88) the Hoare annotation is: false [2019-01-12 09:13:58,021 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,022 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,022 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,022 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,025 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,025 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,025 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,025 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,026 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,026 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,028 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,028 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,028 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,028 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,029 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,029 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,029 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,029 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 09:13:58 BoogieIcfgContainer [2019-01-12 09:13:58,032 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 09:13:58,033 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 09:13:58,033 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 09:13:58,033 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 09:13:58,033 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 09:13:43" (3/4) ... [2019-01-12 09:13:58,038 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-12 09:13:58,051 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-01-12 09:13:58,052 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-01-12 09:13:58,052 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-01-12 09:13:58,079 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-01-12 09:13:58,079 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~bvadd64(\result, 4294967295bv32) == 0bv32 && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) [2019-01-12 09:13:58,139 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 09:13:58,139 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 09:13:58,140 INFO L168 Benchmark]: Toolchain (without parser) took 24564.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 946.0 MB in the beginning and 999.5 MB in the end (delta: -53.5 MB). Peak memory consumption was 79.2 MB. Max. memory is 11.5 GB. [2019-01-12 09:13:58,142 INFO L168 Benchmark]: CDTParser took 0.66 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 09:13:58,142 INFO L168 Benchmark]: CACSL2BoogieTranslator took 522.16 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 929.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2019-01-12 09:13:58,143 INFO L168 Benchmark]: Boogie Procedure Inliner took 117.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -189.9 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2019-01-12 09:13:58,144 INFO L168 Benchmark]: Boogie Preprocessor took 48.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 09:13:58,144 INFO L168 Benchmark]: RCFGBuilder took 9591.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. [2019-01-12 09:13:58,145 INFO L168 Benchmark]: TraceAbstraction took 14172.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 80.9 MB). Peak memory consumption was 80.9 MB. Max. memory is 11.5 GB. [2019-01-12 09:13:58,146 INFO L168 Benchmark]: Witness Printer took 106.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 999.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-01-12 09:13:58,150 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 522.16 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 929.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 117.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 929.9 MB in the beginning and 1.1 GB in the end (delta: -189.9 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 9591.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 14172.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 80.9 MB). Peak memory consumption was 80.9 MB. Max. memory is 11.5 GB. * Witness Printer took 106.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 999.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 121]: 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: 97]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 36]: Loop Invariant [2019-01-12 09:13:58,156 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,156 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,156 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,157 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,157 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,157 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,158 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,164 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 41]: Loop Invariant [2019-01-12 09:13:58,165 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,166 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 13]: Loop Invariant [2019-01-12 09:13:58,166 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,167 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,167 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,167 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,167 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,168 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,168 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-01-12 09:13:58,168 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~bvadd64(\result, 4294967295bv32) == 0bv32 && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && x == ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. SAFE Result, 14.0s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 13.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 84 SDtfs, 30 SDslu, 114 SDs, 0 SdLazy, 41 SolverSat, 1 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 12.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 52 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 1083 SizeOfPredicates, 11 NumberOfNonLiveVariables, 190 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...