./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/nan_double.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-benchs/nan_double.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 7dc1721e577997f4966a61524053c01b76a6be07 ....................................................................................................................................................................................................................... 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-benchs/nan_double.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 7dc1721e577997f4966a61524053c01b76a6be07 ............................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-27 23:37:03,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:37:03,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:37:03,620 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:37:03,620 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:37:03,622 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:37:03,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:37:03,634 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:37:03,636 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:37:03,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:37:03,639 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:37:03,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:37:03,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:37:03,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:37:03,643 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:37:03,644 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:37:03,645 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:37:03,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:37:03,648 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:37:03,651 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:37:03,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:37:03,661 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:37:03,663 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:37:03,664 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:37:03,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:37:03,670 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:37:03,671 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:37:03,672 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:37:03,673 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:37:03,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:37:03,676 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:37:03,677 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:37:03,678 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:37:03,679 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:37:03,683 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:37:03,683 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:37:03,684 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:37:03,684 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:37:03,684 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:37:03,686 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:37:03,687 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:37:03,687 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 23:37:03,703 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:37:03,703 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:37:03,704 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:37:03,705 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:37:03,705 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:37:03,705 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:37:03,706 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:37:03,706 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 23:37:03,706 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:37:03,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:37:03,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:37:03,707 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:37:03,707 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:37:03,708 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:37:03,708 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:37:03,708 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:37:03,708 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:37:03,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:37:03,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:37:03,709 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:37:03,710 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:37:03,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:37:03,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:37:03,711 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:37:03,711 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:37:03,711 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 23:37:03,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 23:37:03,712 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:37:03,712 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 -> 7dc1721e577997f4966a61524053c01b76a6be07 [2019-11-27 23:37:04,032 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:37:04,049 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:37:04,053 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:37:04,055 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:37:04,055 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:37:04,056 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_double.c [2019-11-27 23:37:04,127 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/483e334e8/4af2fc081c7947e5bc02aac425409772/FLAG1d30ee1a1 [2019-11-27 23:37:04,530 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:37:04,530 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_double.c [2019-11-27 23:37:04,536 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/483e334e8/4af2fc081c7947e5bc02aac425409772/FLAG1d30ee1a1 [2019-11-27 23:37:04,960 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/483e334e8/4af2fc081c7947e5bc02aac425409772 [2019-11-27 23:37:04,963 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:37:04,965 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:37:04,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:37:04,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:37:04,970 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:37:04,971 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:37:04" (1/1) ... [2019-11-27 23:37:04,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@155b5aed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:37:04, skipping insertion in model container [2019-11-27 23:37:04,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:37:04" (1/1) ... [2019-11-27 23:37:04,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:37:05,001 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:37:05,227 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:37:05,234 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:37:05,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:37:05,268 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:37:05,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:37:05 WrapperNode [2019-11-27 23:37:05,270 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:37:05,271 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:37:05,271 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:37:05,271 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:37:05,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:37:05" (1/1) ... [2019-11-27 23:37:05,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:37:05" (1/1) ... [2019-11-27 23:37:05,366 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:37:05,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:37:05,368 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:37:05,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:37:05,376 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:37:05" (1/1) ... [2019-11-27 23:37:05,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:37:05" (1/1) ... [2019-11-27 23:37:05,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:37:05" (1/1) ... [2019-11-27 23:37:05,377 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:37:05" (1/1) ... [2019-11-27 23:37:05,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:37:05" (1/1) ... [2019-11-27 23:37:05,382 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:37:05" (1/1) ... [2019-11-27 23:37:05,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:37:05" (1/1) ... [2019-11-27 23:37:05,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:37:05,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:37:05,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:37:05,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:37:05,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:37:05" (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 23:37:05,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:37:05,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:37:05,604 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:37:05,604 INFO L297 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-27 23:37:05,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:37:05 BoogieIcfgContainer [2019-11-27 23:37:05,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:37:05,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:37:05,607 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:37:05,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:37:05,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:37:04" (1/3) ... [2019-11-27 23:37:05,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b623e60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:37:05, skipping insertion in model container [2019-11-27 23:37:05,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:37:05" (2/3) ... [2019-11-27 23:37:05,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b623e60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:37:05, skipping insertion in model container [2019-11-27 23:37:05,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:37:05" (3/3) ... [2019-11-27 23:37:05,615 INFO L109 eAbstractionObserver]: Analyzing ICFG nan_double.c [2019-11-27 23:37:05,626 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:37:05,633 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:37:05,647 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:37:05,673 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:37:05,674 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:37:05,674 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:37:05,674 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:37:05,674 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:37:05,674 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:37:05,675 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:37:05,675 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:37:05,691 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-11-27 23:37:05,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-27 23:37:05,698 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:37:05,699 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-27 23:37:05,700 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:37:05,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:37:05,707 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2019-11-27 23:37:05,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:37:05,718 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842700507] [2019-11-27 23:37:05,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:37:05,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:37:05,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:37:05,835 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-27 23:37:05,836 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 23:37:05,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:37:05 BoogieIcfgContainer [2019-11-27 23:37:05,855 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:37:05,855 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:37:05,856 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:37:05,856 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:37:05,857 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:37:05" (3/4) ... [2019-11-27 23:37:05,861 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-27 23:37:05,861 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:37:05,865 INFO L168 Benchmark]: Toolchain (without parser) took 898.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -149.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:37:05,866 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:37:05,867 INFO L168 Benchmark]: CACSL2BoogieTranslator took 304.32 ms. Allocated memory is still 1.0 GB. Free memory was 955.0 MB in the beginning and 944.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:37:05,868 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -192.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:37:05,869 INFO L168 Benchmark]: Boogie Preprocessor took 15.99 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:37:05,870 INFO L168 Benchmark]: RCFGBuilder took 221.48 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: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:37:05,871 INFO L168 Benchmark]: TraceAbstraction took 248.24 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: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2019-11-27 23:37:05,872 INFO L168 Benchmark]: Witness Printer took 6.17 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 23:37:05,877 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 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 304.32 ms. Allocated memory is still 1.0 GB. Free memory was 955.0 MB in the beginning and 944.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 97.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -192.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.99 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 221.48 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: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 248.24 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: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * Witness Printer took 6.17 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 6]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 13. Possible FailurePath: [L10] double x; [L11] x = __VERIFIER_nondet_double() [L6] COND TRUE !(cond) [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 23:37:07,984 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:37:07,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:37:08,006 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:37:08,006 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:37:08,009 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:37:08,011 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:37:08,021 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:37:08,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:37:08,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:37:08,034 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:37:08,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:37:08,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:37:08,039 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:37:08,042 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:37:08,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:37:08,046 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:37:08,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:37:08,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:37:08,055 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:37:08,061 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:37:08,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:37:08,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:37:08,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:37:08,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:37:08,075 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:37:08,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:37:08,078 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:37:08,078 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:37:08,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:37:08,080 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:37:08,080 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:37:08,081 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:37:08,083 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:37:08,085 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:37:08,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:37:08,086 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:37:08,087 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:37:08,087 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:37:08,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:37:08,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:37:08,090 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 23:37:08,119 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:37:08,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:37:08,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:37:08,124 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:37:08,125 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:37:08,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:37:08,126 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:37:08,126 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:37:08,126 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:37:08,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:37:08,128 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:37:08,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:37:08,129 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 23:37:08,129 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 23:37:08,129 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:37:08,130 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:37:08,130 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:37:08,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:37:08,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:37:08,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:37:08,131 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:37:08,132 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:37:08,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:37:08,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:37:08,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:37:08,133 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:37:08,133 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 23:37:08,133 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 23:37:08,134 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:37:08,134 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 23:37:08,134 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 -> 7dc1721e577997f4966a61524053c01b76a6be07 [2019-11-27 23:37:08,458 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:37:08,472 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:37:08,475 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:37:08,477 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:37:08,478 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:37:08,479 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_double.c [2019-11-27 23:37:08,542 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f33a7ec83/d8228dfcdfd54d07a40441999d11b036/FLAG8635003ad [2019-11-27 23:37:08,994 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:37:08,995 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_double.c [2019-11-27 23:37:09,003 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f33a7ec83/d8228dfcdfd54d07a40441999d11b036/FLAG8635003ad [2019-11-27 23:37:09,352 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f33a7ec83/d8228dfcdfd54d07a40441999d11b036 [2019-11-27 23:37:09,355 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:37:09,357 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:37:09,359 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:37:09,359 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:37:09,363 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:37:09,364 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:37:09" (1/1) ... [2019-11-27 23:37:09,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@658bde2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:37:09, skipping insertion in model container [2019-11-27 23:37:09,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:37:09" (1/1) ... [2019-11-27 23:37:09,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:37:09,393 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:37:09,564 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:37:09,572 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:37:09,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:37:09,604 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:37:09,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:37:09 WrapperNode [2019-11-27 23:37:09,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:37:09,606 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:37:09,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:37:09,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:37:09,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:37:09" (1/1) ... [2019-11-27 23:37:09,625 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:37:09" (1/1) ... [2019-11-27 23:37:09,698 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:37:09,699 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:37:09,699 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:37:09,699 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:37:09,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:37:09" (1/1) ... [2019-11-27 23:37:09,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:37:09" (1/1) ... [2019-11-27 23:37:09,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:37:09" (1/1) ... [2019-11-27 23:37:09,712 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:37:09" (1/1) ... [2019-11-27 23:37:09,717 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:37:09" (1/1) ... [2019-11-27 23:37:09,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:37:09" (1/1) ... [2019-11-27 23:37:09,722 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:37:09" (1/1) ... [2019-11-27 23:37:09,724 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:37:09,725 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:37:09,725 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:37:09,725 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:37:09,726 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:37:09" (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 23:37:09,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:37:09,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:37:09,921 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:37:09,921 INFO L297 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-27 23:37:09,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:37:09 BoogieIcfgContainer [2019-11-27 23:37:09,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:37:09,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:37:09,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:37:09,927 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:37:09,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:37:09" (1/3) ... [2019-11-27 23:37:09,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67096ead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:37:09, skipping insertion in model container [2019-11-27 23:37:09,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:37:09" (2/3) ... [2019-11-27 23:37:09,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67096ead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:37:09, skipping insertion in model container [2019-11-27 23:37:09,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:37:09" (3/3) ... [2019-11-27 23:37:09,932 INFO L109 eAbstractionObserver]: Analyzing ICFG nan_double.c [2019-11-27 23:37:09,940 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:37:09,946 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:37:09,959 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:37:09,980 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:37:09,981 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:37:09,981 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:37:09,981 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:37:09,981 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:37:09,982 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:37:09,982 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:37:09,982 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:37:09,996 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-27 23:37:10,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-27 23:37:10,002 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:37:10,003 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-27 23:37:10,003 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:37:10,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:37:10,009 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2019-11-27 23:37:10,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:37:10,019 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [486681029] [2019-11-27 23:37:10,020 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 23:37:10,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:37:10,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:37:10,089 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-27 23:37:10,090 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 23:37:10,304 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-27 23:37:10,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:37:10 BoogieIcfgContainer [2019-11-27 23:37:10,322 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:37:10,322 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:37:10,323 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:37:10,323 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:37:10,324 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:37:09" (3/4) ... [2019-11-27 23:37:10,326 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-27 23:37:10,368 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 23:37:10,368 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:37:10,371 INFO L168 Benchmark]: Toolchain (without parser) took 1013.19 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.1 MB). Free memory was 960.4 MB in the beginning and 1.0 GB in the end (delta: -77.6 MB). Peak memory consumption was 11.5 MB. Max. memory is 11.5 GB. [2019-11-27 23:37:10,372 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 23:37:10,373 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.25 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:37:10,374 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.1 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -135.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:37:10,375 INFO L168 Benchmark]: Boogie Preprocessor took 25.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-27 23:37:10,376 INFO L168 Benchmark]: RCFGBuilder took 197.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2019-11-27 23:37:10,377 INFO L168 Benchmark]: TraceAbstraction took 398.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. [2019-11-27 23:37:10,378 INFO L168 Benchmark]: Witness Printer took 45.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-27 23:37:10,382 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 247.25 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 92.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.1 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -135.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 197.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 398.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. * Witness Printer took 45.99 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L10] double x; [L11] x = __VERIFIER_nondet_double() [L6] COND TRUE !(cond) [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 incorrect! Received shutdown request...