./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1071.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/float-newlib/double_req_bl_1071.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 922786d1b563f399f230d6bc6e72c1342da4d1a5 ................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/float-newlib/double_req_bl_1071.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 922786d1b563f399f230d6bc6e72c1342da4d1a5 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-27 23:45:02,603 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:45:02,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:45:02,626 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:45:02,626 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:45:02,628 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:45:02,630 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:45:02,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:45:02,648 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:45:02,651 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:45:02,653 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:45:02,655 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:45:02,656 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:45:02,659 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:45:02,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:45:02,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:45:02,664 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:45:02,665 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:45:02,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:45:02,672 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:45:02,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:45:02,682 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:45:02,683 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:45:02,685 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:45:02,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:45:02,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:45:02,689 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:45:02,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:45:02,692 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:45:02,693 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:45:02,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:45:02,694 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:45:02,695 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:45:02,696 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:45:02,697 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:45:02,698 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:45:02,699 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:45:02,699 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:45:02,699 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:45:02,700 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:45:02,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:45:02,703 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 23:45:02,740 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:45:02,743 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:45:02,744 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:45:02,748 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:45:02,748 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:45:02,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:45:02,749 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:45:02,749 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 23:45:02,749 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:45:02,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:45:02,750 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:45:02,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:45:02,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:45:02,752 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:45:02,753 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:45:02,753 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:45:02,753 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:45:02,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:45:02,754 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:45:02,754 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:45:02,755 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:45:02,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:45:02,755 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:45:02,756 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:45:02,756 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:45:02,757 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 23:45:02,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 23:45:02,757 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:45:02,758 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 922786d1b563f399f230d6bc6e72c1342da4d1a5 [2019-11-27 23:45:03,086 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:45:03,098 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:45:03,102 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:45:03,104 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:45:03,104 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:45:03,105 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2019-11-27 23:45:03,166 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fdef76ed/54353fe10c17496cbb179ffe833f956d/FLAG909e1ce2d [2019-11-27 23:45:03,622 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:45:03,623 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2019-11-27 23:45:03,631 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fdef76ed/54353fe10c17496cbb179ffe833f956d/FLAG909e1ce2d [2019-11-27 23:45:04,003 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fdef76ed/54353fe10c17496cbb179ffe833f956d [2019-11-27 23:45:04,006 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:45:04,008 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:45:04,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:45:04,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:45:04,012 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:45:04,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:45:04" (1/1) ... [2019-11-27 23:45:04,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24c7a7ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:04, skipping insertion in model container [2019-11-27 23:45:04,016 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:45:04" (1/1) ... [2019-11-27 23:45:04,024 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:45:04,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:45:04,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:45:04,333 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:45:04,455 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:45:04,485 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:45:04,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:04 WrapperNode [2019-11-27 23:45:04,485 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:45:04,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:45:04,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:45:04,486 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:45:04,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:04" (1/1) ... [2019-11-27 23:45:04,505 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:04" (1/1) ... [2019-11-27 23:45:04,529 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:45:04,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:45:04,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:45:04,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:45:04,542 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:04" (1/1) ... [2019-11-27 23:45:04,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:04" (1/1) ... [2019-11-27 23:45:04,553 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:04" (1/1) ... [2019-11-27 23:45:04,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:04" (1/1) ... [2019-11-27 23:45:04,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:04" (1/1) ... [2019-11-27 23:45:04,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:04" (1/1) ... [2019-11-27 23:45:04,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:04" (1/1) ... [2019-11-27 23:45:04,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:45:04,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:45:04,584 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:45:04,584 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:45:04,585 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:04" (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 [2019-11-27 23:45:04,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-27 23:45:04,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-27 23:45:04,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-27 23:45:04,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:45:04,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:45:04,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-27 23:45:04,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 23:45:04,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 23:45:05,070 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:45:05,074 INFO L297 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-27 23:45:05,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:45:05 BoogieIcfgContainer [2019-11-27 23:45:05,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:45:05,077 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:45:05,079 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:45:05,084 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:45:05,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:45:04" (1/3) ... [2019-11-27 23:45:05,086 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a53859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:45:05, skipping insertion in model container [2019-11-27 23:45:05,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:04" (2/3) ... [2019-11-27 23:45:05,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a53859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:45:05, skipping insertion in model container [2019-11-27 23:45:05,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:45:05" (3/3) ... [2019-11-27 23:45:05,091 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1071.c [2019-11-27 23:45:05,104 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:45:05,113 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:45:05,124 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:45:05,151 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:45:05,151 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:45:05,151 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:45:05,152 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:45:05,152 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:45:05,152 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:45:05,152 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:45:05,152 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:45:05,170 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-11-27 23:45:05,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-27 23:45:05,177 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:45:05,178 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:45:05,178 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:45:05,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:45:05,185 INFO L82 PathProgramCache]: Analyzing trace with hash 166132434, now seen corresponding path program 1 times [2019-11-27 23:45:05,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:45:05,195 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958231581] [2019-11-27 23:45:05,195 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:45:05,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:45:05,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:05,302 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958231581] [2019-11-27 23:45:05,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:45:05,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-27 23:45:05,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061963717] [2019-11-27 23:45:05,307 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-27 23:45:05,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:45:05,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-27 23:45:05,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:45:05,320 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2019-11-27 23:45:05,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:45:05,337 INFO L93 Difference]: Finished difference Result 46 states and 70 transitions. [2019-11-27 23:45:05,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-27 23:45:05,338 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-27 23:45:05,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:45:05,349 INFO L225 Difference]: With dead ends: 46 [2019-11-27 23:45:05,350 INFO L226 Difference]: Without dead ends: 21 [2019-11-27 23:45:05,353 INFO L630 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 [2019-11-27 23:45:05,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-27 23:45:05,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-27 23:45:05,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-27 23:45:05,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2019-11-27 23:45:05,389 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 11 [2019-11-27 23:45:05,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:45:05,390 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2019-11-27 23:45:05,390 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-27 23:45:05,390 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2019-11-27 23:45:05,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-27 23:45:05,391 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:45:05,391 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:45:05,391 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:45:05,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:45:05,392 INFO L82 PathProgramCache]: Analyzing trace with hash 786053359, now seen corresponding path program 1 times [2019-11-27 23:45:05,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:45:05,392 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84452659] [2019-11-27 23:45:05,392 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:45:05,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:45:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:45:05,522 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-27 23:45:05,522 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 23:45:05,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:45:05 BoogieIcfgContainer [2019-11-27 23:45:05,554 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:45:05,555 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:45:05,555 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:45:05,555 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:45:05,556 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:45:05" (3/4) ... [2019-11-27 23:45:05,560 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-27 23:45:05,560 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:45:05,562 INFO L168 Benchmark]: Toolchain (without parser) took 1553.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -114.0 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:05,564 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:45:05,565 INFO L168 Benchmark]: CACSL2BoogieTranslator took 477.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -173.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:05,567 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:45:05,567 INFO L168 Benchmark]: Boogie Preprocessor took 52.89 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. [2019-11-27 23:45:05,568 INFO L168 Benchmark]: RCFGBuilder took 492.97 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: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:05,570 INFO L168 Benchmark]: TraceAbstraction took 476.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:05,570 INFO L168 Benchmark]: Witness Printer took 5.21 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. [2019-11-27 23:45:05,582 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 477.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -173.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.89 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 492.97 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: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 476.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * Witness Printer took 5.21 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 74]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15, overapproximation of someBinaryArithmeticDOUBLEoperation at line 49, overapproximation of bitwiseAnd at line 28. Possible FailurePath: [L68] double x = 0.0 / 0.0; [L18] int signbit; [L19] int msw; [L20] unsigned int lsw; [L21] int exponent_less_1023; [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (msw) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lsw) = ew_u.parts.lsw [L28] signbit = msw & 0x80000000 [L29] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 [L30] COND FALSE !(exponent_less_1023 < 20) [L47] COND TRUE exponent_less_1023 > 51 [L48] COND TRUE exponent_less_1023 == 1024 [L49] return x + x; [L70] double res = trunc_double(x); [L15] return x != x; [L73] COND TRUE !isnan_double(res) [L74] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 27 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=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: 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 0.1.24-30f4e4a [2019-11-27 23:45:07,619 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:45:07,621 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:45:07,634 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:45:07,634 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:45:07,636 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:45:07,637 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:45:07,639 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:45:07,649 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:45:07,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:45:07,651 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:45:07,653 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:45:07,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:45:07,654 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:45:07,657 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:45:07,659 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:45:07,660 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:45:07,661 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:45:07,666 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:45:07,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:45:07,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:45:07,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:45:07,681 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:45:07,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:45:07,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:45:07,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:45:07,687 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:45:07,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:45:07,689 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:45:07,691 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:45:07,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:45:07,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:45:07,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:45:07,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:45:07,697 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:45:07,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:45:07,698 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:45:07,699 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:45:07,699 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:45:07,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:45:07,703 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:45:07,704 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 23:45:07,739 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:45:07,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:45:07,743 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:45:07,744 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:45:07,744 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:45:07,744 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:45:07,744 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:45:07,745 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:45:07,746 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:45:07,746 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:45:07,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:45:07,747 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:45:07,748 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 23:45:07,748 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 23:45:07,748 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:45:07,748 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:45:07,749 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:45:07,749 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:45:07,749 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:45:07,749 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:45:07,750 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:45:07,750 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:45:07,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:45:07,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:45:07,751 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:45:07,751 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:45:07,751 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 23:45:07,751 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 23:45:07,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:45:07,752 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 23:45:07,752 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 -> 922786d1b563f399f230d6bc6e72c1342da4d1a5 [2019-11-27 23:45:08,090 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:45:08,110 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:45:08,114 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:45:08,116 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:45:08,116 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:45:08,118 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2019-11-27 23:45:08,192 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b296738f4/f5340298f74949df8f932e360110319c/FLAGb99a39024 [2019-11-27 23:45:08,724 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:45:08,725 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2019-11-27 23:45:08,731 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b296738f4/f5340298f74949df8f932e360110319c/FLAGb99a39024 [2019-11-27 23:45:09,048 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b296738f4/f5340298f74949df8f932e360110319c [2019-11-27 23:45:09,051 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:45:09,052 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:45:09,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:45:09,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:45:09,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:45:09,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:45:09" (1/1) ... [2019-11-27 23:45:09,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@717e9a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:09, skipping insertion in model container [2019-11-27 23:45:09,061 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:45:09" (1/1) ... [2019-11-27 23:45:09,069 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:45:09,088 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:45:09,277 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:45:09,284 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:45:09,320 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:45:09,419 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:45:09,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:09 WrapperNode [2019-11-27 23:45:09,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:45:09,420 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:45:09,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:45:09,420 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:45:09,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:09" (1/1) ... [2019-11-27 23:45:09,444 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:09" (1/1) ... [2019-11-27 23:45:09,472 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:45:09,473 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:45:09,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:45:09,473 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:45:09,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:09" (1/1) ... [2019-11-27 23:45:09,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:09" (1/1) ... [2019-11-27 23:45:09,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:09" (1/1) ... [2019-11-27 23:45:09,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:09" (1/1) ... [2019-11-27 23:45:09,499 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:09" (1/1) ... [2019-11-27 23:45:09,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:09" (1/1) ... [2019-11-27 23:45:09,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:09" (1/1) ... [2019-11-27 23:45:09,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:45:09,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:45:09,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:45:09,513 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:45:09,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:09" (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 [2019-11-27 23:45:09,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-11-27 23:45:09,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-11-27 23:45:09,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 23:45:09,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-27 23:45:09,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:45:09,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:45:09,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-27 23:45:09,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 23:45:10,086 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:45:10,086 INFO L297 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-27 23:45:10,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:45:10 BoogieIcfgContainer [2019-11-27 23:45:10,087 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:45:10,088 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:45:10,089 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:45:10,091 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:45:10,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:45:09" (1/3) ... [2019-11-27 23:45:10,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bfd964f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:45:10, skipping insertion in model container [2019-11-27 23:45:10,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:45:09" (2/3) ... [2019-11-27 23:45:10,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bfd964f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:45:10, skipping insertion in model container [2019-11-27 23:45:10,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:45:10" (3/3) ... [2019-11-27 23:45:10,096 INFO L109 eAbstractionObserver]: Analyzing ICFG double_req_bl_1071.c [2019-11-27 23:45:10,106 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:45:10,113 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:45:10,126 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:45:10,153 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:45:10,153 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:45:10,154 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:45:10,154 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:45:10,154 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:45:10,154 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:45:10,155 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:45:10,155 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:45:10,169 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-11-27 23:45:10,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-27 23:45:10,175 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:45:10,177 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:45:10,177 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:45:10,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:45:10,183 INFO L82 PathProgramCache]: Analyzing trace with hash 166132434, now seen corresponding path program 1 times [2019-11-27 23:45:10,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:45:10,193 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [632758493] [2019-11-27 23:45:10,193 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-27 23:45:10,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:45:10,334 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-27 23:45:10,338 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:45:10,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:10,352 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:45:10,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:10,358 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [632758493] [2019-11-27 23:45:10,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:45:10,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-27 23:45:10,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985042237] [2019-11-27 23:45:10,365 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-27 23:45:10,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:45:10,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-27 23:45:10,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:45:10,383 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2019-11-27 23:45:10,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:45:10,405 INFO L93 Difference]: Finished difference Result 46 states and 70 transitions. [2019-11-27 23:45:10,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-27 23:45:10,406 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2019-11-27 23:45:10,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:45:10,416 INFO L225 Difference]: With dead ends: 46 [2019-11-27 23:45:10,417 INFO L226 Difference]: Without dead ends: 21 [2019-11-27 23:45:10,420 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:45:10,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-27 23:45:10,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-27 23:45:10,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-27 23:45:10,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2019-11-27 23:45:10,459 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 11 [2019-11-27 23:45:10,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:45:10,459 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2019-11-27 23:45:10,459 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-27 23:45:10,459 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2019-11-27 23:45:10,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-27 23:45:10,460 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:45:10,460 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:45:10,662 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-27 23:45:10,663 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:45:10,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:45:10,664 INFO L82 PathProgramCache]: Analyzing trace with hash 786053359, now seen corresponding path program 1 times [2019-11-27 23:45:10,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:45:10,666 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [652039655] [2019-11-27 23:45:10,667 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-27 23:45:10,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:45:10,801 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-27 23:45:10,804 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:45:10,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:10,928 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:45:11,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:11,801 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [652039655] [2019-11-27 23:45:11,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:45:11,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-27 23:45:11,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486991376] [2019-11-27 23:45:11,803 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-27 23:45:11,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:45:11,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-27 23:45:11,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-27 23:45:11,805 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 10 states. [2019-11-27 23:45:12,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:45:12,448 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2019-11-27 23:45:12,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-27 23:45:12,452 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2019-11-27 23:45:12,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:45:12,453 INFO L225 Difference]: With dead ends: 27 [2019-11-27 23:45:12,453 INFO L226 Difference]: Without dead ends: 20 [2019-11-27 23:45:12,454 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-11-27 23:45:12,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-27 23:45:12,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2019-11-27 23:45:12,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-27 23:45:12,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2019-11-27 23:45:12,460 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 12 [2019-11-27 23:45:12,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:45:12,465 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2019-11-27 23:45:12,465 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-27 23:45:12,465 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2019-11-27 23:45:12,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-27 23:45:12,468 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:45:12,468 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:45:12,681 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-27 23:45:12,684 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:45:12,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:45:12,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1398618101, now seen corresponding path program 1 times [2019-11-27 23:45:12,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:45:12,686 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [310799438] [2019-11-27 23:45:12,687 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2019-11-27 23:45:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:45:12,821 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-27 23:45:12,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:45:13,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:13,028 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:45:13,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:45:13,229 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [310799438] [2019-11-27 23:45:13,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:45:13,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 9 [2019-11-27 23:45:13,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217565051] [2019-11-27 23:45:13,230 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-27 23:45:13,231 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:45:13,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-27 23:45:13,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-11-27 23:45:13,232 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 9 states. [2019-11-27 23:45:13,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:45:13,537 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2019-11-27 23:45:13,539 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-27 23:45:13,539 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2019-11-27 23:45:13,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:45:13,539 INFO L225 Difference]: With dead ends: 20 [2019-11-27 23:45:13,540 INFO L226 Difference]: Without dead ends: 0 [2019-11-27 23:45:13,540 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2019-11-27 23:45:13,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-27 23:45:13,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-27 23:45:13,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-27 23:45:13,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-27 23:45:13,542 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-11-27 23:45:13,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:45:13,542 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-27 23:45:13,542 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-27 23:45:13,542 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-27 23:45:13,542 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-27 23:45:13,750 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-27 23:45:13,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-27 23:45:13,915 INFO L246 CegarLoopResult]: For program point L31(lines 31 46) no Hoare annotation was computed. [2019-11-27 23:45:13,915 INFO L246 CegarLoopResult]: For program point L52-1(lines 52 57) no Hoare annotation was computed. [2019-11-27 23:45:13,915 INFO L242 CegarLoopResult]: At program point L52-2(lines 52 57) the Hoare annotation is: false [2019-11-27 23:45:13,916 INFO L246 CegarLoopResult]: For program point L52-3(lines 30 58) no Hoare annotation was computed. [2019-11-27 23:45:13,916 INFO L246 CegarLoopResult]: For program point L48(lines 48 50) no Hoare annotation was computed. [2019-11-27 23:45:13,916 INFO L242 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start_trunc_double_~x) (= |ULTIMATE.start_trunc_double_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2019-11-27 23:45:13,917 INFO L246 CegarLoopResult]: For program point L73(lines 73 76) no Hoare annotation was computed. [2019-11-27 23:45:13,917 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-27 23:45:13,917 INFO L246 CegarLoopResult]: For program point L32-1(lines 32 37) no Hoare annotation was computed. [2019-11-27 23:45:13,917 INFO L242 CegarLoopResult]: At program point L32-2(lines 32 37) the Hoare annotation is: false [2019-11-27 23:45:13,917 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-27 23:45:13,917 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-27 23:45:13,918 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 74) no Hoare annotation was computed. [2019-11-27 23:45:13,918 INFO L249 CegarLoopResult]: At program point L78(lines 62 79) the Hoare annotation is: true [2019-11-27 23:45:13,918 INFO L246 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2019-11-27 23:45:13,918 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-27 23:45:13,918 INFO L246 CegarLoopResult]: For program point L30(lines 30 58) no Hoare annotation was computed. [2019-11-27 23:45:13,918 INFO L242 CegarLoopResult]: At program point L59(lines 17 60) the Hoare annotation is: (and (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start_trunc_double_~x) (= |ULTIMATE.start_trunc_double_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-27 23:45:13,919 INFO L246 CegarLoopResult]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2019-11-27 23:45:13,919 INFO L242 CegarLoopResult]: At program point L22-2(lines 22 27) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start_trunc_double_~x)) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-27 23:45:13,920 INFO L246 CegarLoopResult]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2019-11-27 23:45:13,920 INFO L246 CegarLoopResult]: For program point L47(lines 47 58) no Hoare annotation was computed. [2019-11-27 23:45:13,920 INFO L246 CegarLoopResult]: For program point L39-1(lines 39 45) no Hoare annotation was computed. [2019-11-27 23:45:13,920 INFO L242 CegarLoopResult]: At program point L39-2(lines 39 45) the Hoare annotation is: false [2019-11-27 23:45:13,953 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:13,957 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:13,958 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:13,958 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:13,960 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:45:13,963 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:45:13,966 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:13,969 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:13,969 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:13,969 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:13,970 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:45:13,970 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:45:13,971 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:13,971 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:13,971 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:13,972 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:13,972 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:45:13,972 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:45:13,972 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:13,973 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:13,973 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:13,973 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:13,973 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:45:13,973 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:45:13,974 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:45:13,975 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:13,976 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:45:13,977 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:45:13,977 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:13,977 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:45:13,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:45:13 BoogieIcfgContainer [2019-11-27 23:45:13,981 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:45:13,981 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:45:13,982 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:45:13,982 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:45:13,982 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:45:10" (3/4) ... [2019-11-27 23:45:13,987 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-27 23:45:14,005 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2019-11-27 23:45:14,005 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-11-27 23:45:14,006 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-27 23:45:14,050 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-11-27 23:45:14,051 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && \result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-11-27 23:45:14,052 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && \result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result [2019-11-27 23:45:14,085 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 23:45:14,086 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:45:14,088 INFO L168 Benchmark]: Toolchain (without parser) took 5035.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 956.3 MB in the beginning and 978.3 MB in the end (delta: -21.9 MB). Peak memory consumption was 108.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:14,089 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:45:14,090 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -170.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:14,090 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.54 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:14,091 INFO L168 Benchmark]: Boogie Preprocessor took 39.17 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. [2019-11-27 23:45:14,091 INFO L168 Benchmark]: RCFGBuilder took 574.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:14,093 INFO L168 Benchmark]: TraceAbstraction took 3892.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 985.0 MB in the end (delta: 108.6 MB). Peak memory consumption was 108.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:14,093 INFO L168 Benchmark]: Witness Printer took 104.45 ms. Allocated memory is still 1.2 GB. Free memory was 985.0 MB in the beginning and 978.3 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:45:14,096 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 366.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -170.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.54 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.17 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 574.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3892.46 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 985.0 MB in the end (delta: 108.6 MB). Peak memory consumption was 108.6 MB. Max. memory is 11.5 GB. * Witness Printer took 104.45 ms. Allocated memory is still 1.2 GB. Free memory was 985.0 MB in the beginning and 978.3 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 74]: 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: 15]: Loop Invariant [2019-11-27 23:45:14,105 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:14,106 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:14,106 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:14,106 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:14,106 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:45:14,107 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:45:14,107 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:14,107 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:14,108 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:14,108 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:14,108 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:45:14,108 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && \result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 17]: Loop Invariant [2019-11-27 23:45:14,109 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:14,109 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:14,109 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:14,110 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:14,110 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:45:14,110 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:45:14,110 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:14,111 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:14,111 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:14,111 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:14,112 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:45:14,112 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && \result == ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant [2019-11-27 23:45:14,113 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:45:14,113 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:14,113 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:45:14,113 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2019-11-27 23:45:14,114 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:45:14,114 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 1 error locations. Result: SAFE, OverallTime: 3.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 48 SDtfs, 49 SDslu, 112 SDs, 0 SdLazy, 57 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 50 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 11 NumberOfFragments, 62 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 68 ConstructedInterpolants, 6 QuantifiedInterpolants, 4765 SizeOfPredicates, 17 NumberOfNonLiveVariables, 111 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...