./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 f470102c 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 0.1.25-f470102 [2019-11-28 16:41:35,718 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 16:41:35,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 16:41:35,739 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 16:41:35,739 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 16:41:35,741 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 16:41:35,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 16:41:35,755 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 16:41:35,757 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 16:41:35,758 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 16:41:35,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 16:41:35,761 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 16:41:35,761 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 16:41:35,762 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 16:41:35,763 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 16:41:35,765 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 16:41:35,765 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 16:41:35,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 16:41:35,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 16:41:35,774 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 16:41:35,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 16:41:35,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 16:41:35,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 16:41:35,787 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 16:41:35,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 16:41:35,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 16:41:35,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 16:41:35,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 16:41:35,795 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 16:41:35,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 16:41:35,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 16:41:35,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 16:41:35,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 16:41:35,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 16:41:35,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 16:41:35,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 16:41:35,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 16:41:35,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 16:41:35,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 16:41:35,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 16:41:35,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 16:41:35,806 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 16:41:35,822 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 16:41:35,823 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 16:41:35,824 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 16:41:35,825 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 16:41:35,825 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 16:41:35,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 16:41:35,825 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 16:41:35,826 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 16:41:35,826 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 16:41:35,826 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 16:41:35,827 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 16:41:35,827 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 16:41:35,827 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 16:41:35,828 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 16:41:35,828 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 16:41:35,828 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 16:41:35,828 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 16:41:35,829 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 16:41:35,829 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 16:41:35,829 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 16:41:35,830 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 16:41:35,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:41:35,830 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 16:41:35,831 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 16:41:35,831 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 16:41:35,831 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 16:41:35,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 16:41:35,832 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 16:41:35,832 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 16:41:35,832 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 [2019-11-28 16:41:36,208 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 16:41:36,229 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 16:41:36,233 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 16:41:36,235 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 16:41:36,235 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 16:41:36,236 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_double.c [2019-11-28 16:41:36,305 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2bec127a/36cc004373e14153a720c6bcf9af921c/FLAG5973ec6cf [2019-11-28 16:41:36,706 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 16:41:36,707 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_double.c [2019-11-28 16:41:36,713 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2bec127a/36cc004373e14153a720c6bcf9af921c/FLAG5973ec6cf [2019-11-28 16:41:37,073 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2bec127a/36cc004373e14153a720c6bcf9af921c [2019-11-28 16:41:37,076 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 16:41:37,077 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 16:41:37,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 16:41:37,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 16:41:37,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 16:41:37,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:41:37" (1/1) ... [2019-11-28 16:41:37,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f4f4d53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:37, skipping insertion in model container [2019-11-28 16:41:37,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:41:37" (1/1) ... [2019-11-28 16:41:37,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 16:41:37,114 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 16:41:37,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:41:37,291 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 16:41:37,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:41:37,316 INFO L208 MainTranslator]: Completed translation [2019-11-28 16:41:37,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:37 WrapperNode [2019-11-28 16:41:37,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 16:41:37,318 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 16:41:37,318 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 16:41:37,318 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 16:41:37,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:37" (1/1) ... [2019-11-28 16:41:37,330 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:37" (1/1) ... [2019-11-28 16:41:37,405 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 16:41:37,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 16:41:37,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 16:41:37,406 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 16:41:37,416 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:37" (1/1) ... [2019-11-28 16:41:37,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:37" (1/1) ... [2019-11-28 16:41:37,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:37" (1/1) ... [2019-11-28 16:41:37,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:37" (1/1) ... [2019-11-28 16:41:37,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:37" (1/1) ... [2019-11-28 16:41:37,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:37" (1/1) ... [2019-11-28 16:41:37,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:37" (1/1) ... [2019-11-28 16:41:37,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 16:41:37,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 16:41:37,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 16:41:37,426 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 16:41:37,427 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:37" (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 [2019-11-28 16:41:37,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 16:41:37,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 16:41:37,614 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 16:41:37,614 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-28 16:41:37,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:41:37 BoogieIcfgContainer [2019-11-28 16:41:37,616 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 16:41:37,617 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 16:41:37,617 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 16:41:37,620 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 16:41:37,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:41:37" (1/3) ... [2019-11-28 16:41:37,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a691c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:41:37, skipping insertion in model container [2019-11-28 16:41:37,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:37" (2/3) ... [2019-11-28 16:41:37,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a691c7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:41:37, skipping insertion in model container [2019-11-28 16:41:37,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:41:37" (3/3) ... [2019-11-28 16:41:37,625 INFO L109 eAbstractionObserver]: Analyzing ICFG nan_double.c [2019-11-28 16:41:37,633 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 16:41:37,639 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 16:41:37,649 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 16:41:37,674 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 16:41:37,674 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 16:41:37,674 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 16:41:37,674 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 16:41:37,675 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 16:41:37,675 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 16:41:37,675 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 16:41:37,675 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 16:41:37,689 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-11-28 16:41:37,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-28 16:41:37,695 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:41:37,695 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-11-28 16:41:37,696 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:41:37,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:41:37,701 INFO L82 PathProgramCache]: Analyzing trace with hash 30882, now seen corresponding path program 1 times [2019-11-28 16:41:37,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 16:41:37,709 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436430562] [2019-11-28 16:41:37,710 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 16:41:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:41:37,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:41:37,836 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 16:41:37,837 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 16:41:37,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:41:37 BoogieIcfgContainer [2019-11-28 16:41:37,859 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 16:41:37,860 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 16:41:37,860 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 16:41:37,861 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 16:41:37,862 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:41:37" (3/4) ... [2019-11-28 16:41:37,867 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 16:41:37,867 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 16:41:37,872 INFO L168 Benchmark]: Toolchain (without parser) took 791.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -126.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:41:37,873 INFO L168 Benchmark]: CDTParser took 0.80 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. [2019-11-28 16:41:37,876 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.19 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. [2019-11-28 16:41:37,879 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.74 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -170.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 16:41:37,880 INFO L168 Benchmark]: Boogie Preprocessor took 19.07 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:41:37,881 INFO L168 Benchmark]: RCFGBuilder took 190.66 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: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-28 16:41:37,883 INFO L168 Benchmark]: TraceAbstraction took 242.89 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: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2019-11-28 16:41:37,884 INFO L168 Benchmark]: Witness Printer took 7.43 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:41:37,893 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 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 239.19 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 87.74 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -170.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.07 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 190.66 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: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 242.89 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: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. * Witness Printer took 7.43 ms. Allocated memory is still 1.1 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 0.1.25-f470102 [2019-11-28 16:41:39,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 16:41:39,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 16:41:39,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 16:41:39,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 16:41:39,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 16:41:39,968 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 16:41:39,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 16:41:39,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 16:41:39,988 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 16:41:39,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 16:41:39,991 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 16:41:39,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 16:41:39,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 16:41:39,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 16:41:39,997 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 16:41:39,999 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 16:41:40,000 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 16:41:40,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 16:41:40,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 16:41:40,011 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 16:41:40,015 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 16:41:40,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 16:41:40,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 16:41:40,023 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 16:41:40,024 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 16:41:40,024 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 16:41:40,026 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 16:41:40,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 16:41:40,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 16:41:40,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 16:41:40,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 16:41:40,029 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 16:41:40,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 16:41:40,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 16:41:40,032 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 16:41:40,033 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 16:41:40,034 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 16:41:40,034 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 16:41:40,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 16:41:40,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 16:41:40,037 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-28 16:41:40,057 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 16:41:40,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 16:41:40,058 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 16:41:40,059 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 16:41:40,059 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 16:41:40,059 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 16:41:40,060 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 16:41:40,060 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 16:41:40,060 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 16:41:40,060 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 16:41:40,061 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 16:41:40,061 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 16:41:40,061 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 16:41:40,062 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 16:41:40,062 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 16:41:40,062 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 16:41:40,062 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 16:41:40,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 16:41:40,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 16:41:40,063 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 16:41:40,063 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 16:41:40,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 16:41:40,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:41:40,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 16:41:40,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 16:41:40,065 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 16:41:40,065 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 16:41:40,065 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 16:41:40,066 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 16:41:40,066 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 16:41:40,066 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 16:41:40,067 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 [2019-11-28 16:41:40,437 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 16:41:40,459 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 16:41:40,463 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 16:41:40,465 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 16:41:40,467 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 16:41:40,468 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_double.c [2019-11-28 16:41:40,544 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92c5f71c1/878df1f3f70b4181af6550a805e4e439/FLAG0e943a4a1 [2019-11-28 16:41:41,028 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 16:41:41,029 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_double.c [2019-11-28 16:41:41,036 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92c5f71c1/878df1f3f70b4181af6550a805e4e439/FLAG0e943a4a1 [2019-11-28 16:41:41,447 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92c5f71c1/878df1f3f70b4181af6550a805e4e439 [2019-11-28 16:41:41,450 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 16:41:41,453 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 16:41:41,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 16:41:41,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 16:41:41,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 16:41:41,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:41:41" (1/1) ... [2019-11-28 16:41:41,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5778aac3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:41, skipping insertion in model container [2019-11-28 16:41:41,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:41:41" (1/1) ... [2019-11-28 16:41:41,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 16:41:41,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 16:41:41,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:41:41,692 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 16:41:41,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:41:41,720 INFO L208 MainTranslator]: Completed translation [2019-11-28 16:41:41,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:41 WrapperNode [2019-11-28 16:41:41,721 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 16:41:41,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 16:41:41,722 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 16:41:41,722 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 16:41:41,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:41" (1/1) ... [2019-11-28 16:41:41,806 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:41" (1/1) ... [2019-11-28 16:41:41,827 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 16:41:41,828 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 16:41:41,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 16:41:41,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 16:41:41,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:41" (1/1) ... [2019-11-28 16:41:41,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:41" (1/1) ... [2019-11-28 16:41:41,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:41" (1/1) ... [2019-11-28 16:41:41,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:41" (1/1) ... [2019-11-28 16:41:41,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:41" (1/1) ... [2019-11-28 16:41:41,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:41" (1/1) ... [2019-11-28 16:41:41,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:41" (1/1) ... [2019-11-28 16:41:41,855 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 16:41:41,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 16:41:41,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 16:41:41,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 16:41:41,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:41" (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 [2019-11-28 16:41:41,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 16:41:41,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 16:41:42,084 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 16:41:42,084 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-28 16:41:42,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:41:42 BoogieIcfgContainer [2019-11-28 16:41:42,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 16:41:42,087 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 16:41:42,087 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 16:41:42,090 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 16:41:42,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:41:41" (1/3) ... [2019-11-28 16:41:42,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@624500e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:41:42, skipping insertion in model container [2019-11-28 16:41:42,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:41" (2/3) ... [2019-11-28 16:41:42,093 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@624500e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:41:42, skipping insertion in model container [2019-11-28 16:41:42,093 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:41:42" (3/3) ... [2019-11-28 16:41:42,094 INFO L109 eAbstractionObserver]: Analyzing ICFG nan_double.c [2019-11-28 16:41:42,104 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 16:41:42,110 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 16:41:42,120 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 16:41:42,145 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 16:41:42,145 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 16:41:42,146 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 16:41:42,146 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 16:41:42,146 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 16:41:42,146 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 16:41:42,146 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 16:41:42,146 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 16:41:42,160 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-28 16:41:42,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-28 16:41:42,165 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:41:42,166 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-28 16:41:42,167 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:41:42,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:41:42,172 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2019-11-28 16:41:42,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:41:42,182 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [200900367] [2019-11-28 16:41:42,182 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 [2019-11-28 16:41:42,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:41:42,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 16:41:42,253 INFO L174 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2019-11-28 16:41:42,254 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 16:41:42,468 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 16:41:42,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:41:42 BoogieIcfgContainer [2019-11-28 16:41:42,487 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 16:41:42,487 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 16:41:42,488 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 16:41:42,488 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 16:41:42,488 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:41:42" (3/4) ... [2019-11-28 16:41:42,491 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-28 16:41:42,526 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 16:41:42,527 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 16:41:42,530 INFO L168 Benchmark]: Toolchain (without parser) took 1076.63 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 76.0 MB). Free memory was 961.7 MB in the beginning and 1.0 GB in the end (delta: -63.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2019-11-28 16:41:42,531 INFO L168 Benchmark]: CDTParser took 0.30 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. [2019-11-28 16:41:42,532 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.46 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 16:41:42,533 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.51 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 76.0 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -121.1 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:41:42,534 INFO L168 Benchmark]: Boogie Preprocessor took 28.27 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. [2019-11-28 16:41:42,535 INFO L168 Benchmark]: RCFGBuilder took 229.82 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: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2019-11-28 16:41:42,536 INFO L168 Benchmark]: TraceAbstraction took 400.29 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: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-11-28 16:41:42,537 INFO L168 Benchmark]: Witness Printer took 39.71 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:41:42,542 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 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 267.46 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 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 105.51 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 76.0 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -121.1 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.27 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 229.82 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: 19.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 400.29 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: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Witness Printer took 39.71 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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...