./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 f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a4232596288b496aee224c4b4f91c0d4dc8bab0d40c539eda179d1ef3a227da3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 14:16:41,475 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 14:16:41,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 14:16:41,536 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 14:16:41,537 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 14:16:41,538 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 14:16:41,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 14:16:41,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 14:16:41,549 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 14:16:41,550 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 14:16:41,551 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 14:16:41,553 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 14:16:41,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 14:16:41,558 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 14:16:41,559 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 14:16:41,561 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 14:16:41,562 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 14:16:41,564 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 14:16:41,566 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 14:16:41,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 14:16:41,572 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 14:16:41,574 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 14:16:41,574 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 14:16:41,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 14:16:41,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 14:16:41,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 14:16:41,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 14:16:41,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 14:16:41,580 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 14:16:41,581 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 14:16:41,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 14:16:41,582 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 14:16:41,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 14:16:41,584 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 14:16:41,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 14:16:41,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 14:16:41,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 14:16:41,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 14:16:41,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 14:16:41,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 14:16:41,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 14:16:41,588 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 14:16:41,589 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 14:16:41,615 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 14:16:41,615 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 14:16:41,616 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 14:16:41,616 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 14:16:41,616 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 14:16:41,616 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 14:16:41,617 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 14:16:41,617 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 14:16:41,617 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 14:16:41,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 14:16:41,618 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 14:16:41,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 14:16:41,618 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 14:16:41,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 14:16:41,619 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 14:16:41,619 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 14:16:41,619 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 14:16:41,619 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 14:16:41,619 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 14:16:41,620 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 14:16:41,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 14:16:41,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 14:16:41,621 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 14:16:41,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 14:16:41,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:16:41,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 14:16:41,622 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 14:16:41,622 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 14:16:41,622 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 14:16:41,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 14:16:41,622 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 14:16:41,622 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 14:16:41,623 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 14:16:41,623 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4232596288b496aee224c4b4f91c0d4dc8bab0d40c539eda179d1ef3a227da3 [2022-07-13 14:16:41,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 14:16:41,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 14:16:41,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 14:16:41,809 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 14:16:41,810 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 14:16:41,811 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_double.c [2022-07-13 14:16:41,864 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e555e656/0c2307e00d0046cfaa8900f0980f5160/FLAGa1188b496 [2022-07-13 14:16:42,215 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 14:16:42,216 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_double.c [2022-07-13 14:16:42,222 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e555e656/0c2307e00d0046cfaa8900f0980f5160/FLAGa1188b496 [2022-07-13 14:16:42,239 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e555e656/0c2307e00d0046cfaa8900f0980f5160 [2022-07-13 14:16:42,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 14:16:42,242 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 14:16:42,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 14:16:42,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 14:16:42,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 14:16:42,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:16:42" (1/1) ... [2022-07-13 14:16:42,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6289661e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:42, skipping insertion in model container [2022-07-13 14:16:42,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:16:42" (1/1) ... [2022-07-13 14:16:42,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 14:16:42,262 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 14:16:42,390 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2022-07-13 14:16:42,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:16:42,404 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 14:16:42,411 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2022-07-13 14:16:42,412 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:16:42,421 INFO L208 MainTranslator]: Completed translation [2022-07-13 14:16:42,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:42 WrapperNode [2022-07-13 14:16:42,422 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 14:16:42,423 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 14:16:42,423 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 14:16:42,424 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 14:16:42,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:42" (1/1) ... [2022-07-13 14:16:42,435 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:42" (1/1) ... [2022-07-13 14:16:42,447 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2022-07-13 14:16:42,447 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 14:16:42,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 14:16:42,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 14:16:42,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 14:16:42,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:42" (1/1) ... [2022-07-13 14:16:42,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:42" (1/1) ... [2022-07-13 14:16:42,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:42" (1/1) ... [2022-07-13 14:16:42,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:42" (1/1) ... [2022-07-13 14:16:42,458 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:42" (1/1) ... [2022-07-13 14:16:42,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:42" (1/1) ... [2022-07-13 14:16:42,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:42" (1/1) ... [2022-07-13 14:16:42,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 14:16:42,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 14:16:42,466 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 14:16:42,466 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 14:16:42,467 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:42" (1/1) ... [2022-07-13 14:16:42,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:16:42,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 14:16:42,489 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 14:16:42,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 14:16:42,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 14:16:42,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 14:16:42,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 14:16:42,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 14:16:42,556 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 14:16:42,557 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 14:16:42,639 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 14:16:42,643 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 14:16:42,644 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 14:16:42,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:16:42 BoogieIcfgContainer [2022-07-13 14:16:42,645 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 14:16:42,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 14:16:42,647 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 14:16:42,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 14:16:42,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:16:42" (1/3) ... [2022-07-13 14:16:42,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3c5620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:16:42, skipping insertion in model container [2022-07-13 14:16:42,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:42" (2/3) ... [2022-07-13 14:16:42,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d3c5620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:16:42, skipping insertion in model container [2022-07-13 14:16:42,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:16:42" (3/3) ... [2022-07-13 14:16:42,652 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double.c [2022-07-13 14:16:42,664 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 14:16:42,664 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 14:16:42,712 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 14:16:42,719 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1690b35a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@14910107 [2022-07-13 14:16:42,719 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 14:16:42,723 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:16:42,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-13 14:16:42,735 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:16:42,736 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-13 14:16:42,737 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:16:42,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:16:42,742 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2022-07-13 14:16:42,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 14:16:42,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19114001] [2022-07-13 14:16:42,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:16:42,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 14:16:42,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 14:16:42,824 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 14:16:42,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 14:16:42,856 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 14:16:42,858 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 14:16:42,859 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 14:16:42,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 14:16:42,864 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-13 14:16:42,867 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 14:16:42,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 02:16:42 BoogieIcfgContainer [2022-07-13 14:16:42,883 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 14:16:42,884 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 14:16:42,885 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 14:16:42,885 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 14:16:42,885 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:16:42" (3/4) ... [2022-07-13 14:16:42,888 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 14:16:42,888 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 14:16:42,889 INFO L158 Benchmark]: Toolchain (without parser) took 646.67ms. Allocated memory is still 88.1MB. Free memory was 57.7MB in the beginning and 42.0MB in the end (delta: 15.7MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2022-07-13 14:16:42,890 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 88.1MB. Free memory is still 47.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:16:42,891 INFO L158 Benchmark]: CACSL2BoogieTranslator took 179.53ms. Allocated memory is still 88.1MB. Free memory was 57.6MB in the beginning and 66.4MB in the end (delta: -8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 14:16:42,891 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.90ms. Allocated memory is still 88.1MB. Free memory was 66.4MB in the beginning and 65.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 14:16:42,892 INFO L158 Benchmark]: Boogie Preprocessor took 17.56ms. Allocated memory is still 88.1MB. Free memory was 65.1MB in the beginning and 64.3MB in the end (delta: 764.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:16:42,895 INFO L158 Benchmark]: RCFGBuilder took 179.16ms. Allocated memory is still 88.1MB. Free memory was 64.3MB in the beginning and 55.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 14:16:42,896 INFO L158 Benchmark]: TraceAbstraction took 236.14ms. Allocated memory is still 88.1MB. Free memory was 55.6MB in the beginning and 42.4MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-13 14:16:42,897 INFO L158 Benchmark]: Witness Printer took 3.49ms. Allocated memory is still 88.1MB. Free memory was 42.4MB in the beginning and 42.0MB in the end (delta: 375.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:16:42,902 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 88.1MB. Free memory is still 47.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 179.53ms. Allocated memory is still 88.1MB. Free memory was 57.6MB in the beginning and 66.4MB in the end (delta: -8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.90ms. Allocated memory is still 88.1MB. Free memory was 66.4MB in the beginning and 65.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.56ms. Allocated memory is still 88.1MB. Free memory was 65.1MB in the beginning and 64.3MB in the end (delta: 764.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 179.16ms. Allocated memory is still 88.1MB. Free memory was 64.3MB in the beginning and 55.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 236.14ms. Allocated memory is still 88.1MB. Free memory was 55.6MB in the beginning and 42.4MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 3.49ms. Allocated memory is still 88.1MB. Free memory was 42.4MB in the beginning and 42.0MB in the end (delta: 375.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 8]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L12] double x; [L13] x = __VERIFIER_nondet_double() [L15] CALL __VERIFIER_assert(x==x) [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 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, ACCELERATED_INTERPOLATION: 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 [2022-07-13 14:16:42,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a4232596288b496aee224c4b4f91c0d4dc8bab0d40c539eda179d1ef3a227da3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 14:16:44,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 14:16:44,630 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 14:16:44,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 14:16:44,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 14:16:44,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 14:16:44,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 14:16:44,659 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 14:16:44,661 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 14:16:44,661 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 14:16:44,662 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 14:16:44,663 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 14:16:44,663 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 14:16:44,664 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 14:16:44,665 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 14:16:44,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 14:16:44,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 14:16:44,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 14:16:44,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 14:16:44,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 14:16:44,671 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 14:16:44,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 14:16:44,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 14:16:44,680 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 14:16:44,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 14:16:44,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 14:16:44,691 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 14:16:44,692 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 14:16:44,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 14:16:44,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 14:16:44,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 14:16:44,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 14:16:44,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 14:16:44,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 14:16:44,696 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 14:16:44,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 14:16:44,699 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 14:16:44,700 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 14:16:44,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 14:16:44,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 14:16:44,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 14:16:44,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 14:16:44,706 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-13 14:16:44,726 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 14:16:44,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 14:16:44,726 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 14:16:44,727 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 14:16:44,727 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 14:16:44,727 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 14:16:44,728 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 14:16:44,728 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 14:16:44,728 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 14:16:44,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 14:16:44,737 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 14:16:44,737 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 14:16:44,737 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 14:16:44,737 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 14:16:44,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 14:16:44,737 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 14:16:44,738 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-13 14:16:44,738 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-13 14:16:44,738 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-13 14:16:44,738 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 14:16:44,738 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 14:16:44,738 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 14:16:44,738 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 14:16:44,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 14:16:44,739 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 14:16:44,739 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 14:16:44,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:16:44,739 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 14:16:44,739 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 14:16:44,739 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 14:16:44,740 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-13 14:16:44,740 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-13 14:16:44,740 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 14:16:44,740 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 14:16:44,741 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 14:16:44,741 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-13 14:16:44,741 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4232596288b496aee224c4b4f91c0d4dc8bab0d40c539eda179d1ef3a227da3 [2022-07-13 14:16:45,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 14:16:45,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 14:16:45,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 14:16:45,046 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 14:16:45,046 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 14:16:45,048 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_double.c [2022-07-13 14:16:45,103 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c2d34df9/6a66cf2cdfdf4ff79bfacb97b48af5a9/FLAGe9b9901ec [2022-07-13 14:16:45,443 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 14:16:45,443 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_double.c [2022-07-13 14:16:45,447 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c2d34df9/6a66cf2cdfdf4ff79bfacb97b48af5a9/FLAGe9b9901ec [2022-07-13 14:16:45,462 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c2d34df9/6a66cf2cdfdf4ff79bfacb97b48af5a9 [2022-07-13 14:16:45,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 14:16:45,466 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 14:16:45,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 14:16:45,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 14:16:45,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 14:16:45,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:16:45" (1/1) ... [2022-07-13 14:16:45,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18417a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:45, skipping insertion in model container [2022-07-13 14:16:45,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:16:45" (1/1) ... [2022-07-13 14:16:45,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 14:16:45,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 14:16:45,608 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2022-07-13 14:16:45,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:16:45,628 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 14:16:45,639 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2022-07-13 14:16:45,640 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 14:16:45,656 INFO L208 MainTranslator]: Completed translation [2022-07-13 14:16:45,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:45 WrapperNode [2022-07-13 14:16:45,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 14:16:45,671 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 14:16:45,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 14:16:45,672 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 14:16:45,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:45" (1/1) ... [2022-07-13 14:16:45,686 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:45" (1/1) ... [2022-07-13 14:16:45,698 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 23 [2022-07-13 14:16:45,698 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 14:16:45,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 14:16:45,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 14:16:45,700 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 14:16:45,705 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:45" (1/1) ... [2022-07-13 14:16:45,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:45" (1/1) ... [2022-07-13 14:16:45,717 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:45" (1/1) ... [2022-07-13 14:16:45,717 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:45" (1/1) ... [2022-07-13 14:16:45,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:45" (1/1) ... [2022-07-13 14:16:45,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:45" (1/1) ... [2022-07-13 14:16:45,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:45" (1/1) ... [2022-07-13 14:16:45,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 14:16:45,735 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 14:16:45,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 14:16:45,736 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 14:16:45,737 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:45" (1/1) ... [2022-07-13 14:16:45,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 14:16:45,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 14:16:45,760 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 14:16:45,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 14:16:45,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 14:16:45,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-13 14:16:45,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 14:16:45,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 14:16:45,855 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 14:16:45,857 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 14:16:45,925 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 14:16:45,930 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 14:16:45,930 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-13 14:16:45,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:16:45 BoogieIcfgContainer [2022-07-13 14:16:45,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 14:16:45,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 14:16:45,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 14:16:45,936 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 14:16:45,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:16:45" (1/3) ... [2022-07-13 14:16:45,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e580798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:16:45, skipping insertion in model container [2022-07-13 14:16:45,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:16:45" (2/3) ... [2022-07-13 14:16:45,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e580798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:16:45, skipping insertion in model container [2022-07-13 14:16:45,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:16:45" (3/3) ... [2022-07-13 14:16:45,939 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double.c [2022-07-13 14:16:45,950 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 14:16:45,950 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 14:16:45,993 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 14:16:46,000 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@64248435, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7cec4731 [2022-07-13 14:16:46,001 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 14:16:46,004 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 14:16:46,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-13 14:16:46,009 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 14:16:46,009 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-13 14:16:46,010 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 14:16:46,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 14:16:46,015 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2022-07-13 14:16:46,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-13 14:16:46,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [267808600] [2022-07-13 14:16:46,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 14:16:46,025 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-13 14:16:46,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-13 14:16:46,028 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-13 14:16:46,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-13 14:16:46,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 14:16:46,080 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 14:16:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 14:16:46,101 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-13 14:16:46,102 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 14:16:46,103 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 14:16:46,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-13 14:16:46,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-13 14:16:46,316 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-13 14:16:46,321 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 14:16:46,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 02:16:46 BoogieIcfgContainer [2022-07-13 14:16:46,334 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 14:16:46,336 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 14:16:46,336 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 14:16:46,337 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 14:16:46,337 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:16:45" (3/4) ... [2022-07-13 14:16:46,339 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-13 14:16:46,370 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 14:16:46,370 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 14:16:46,371 INFO L158 Benchmark]: Toolchain (without parser) took 905.28ms. Allocated memory is still 60.8MB. Free memory was 40.7MB in the beginning and 37.3MB in the end (delta: 3.4MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. [2022-07-13 14:16:46,372 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 60.8MB. Free memory was 42.1MB in the beginning and 42.0MB in the end (delta: 48.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:16:46,372 INFO L158 Benchmark]: CACSL2BoogieTranslator took 203.36ms. Allocated memory is still 60.8MB. Free memory was 40.6MB in the beginning and 43.9MB in the end (delta: -3.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-13 14:16:46,374 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.16ms. Allocated memory is still 60.8MB. Free memory was 43.7MB in the beginning and 42.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:16:46,375 INFO L158 Benchmark]: Boogie Preprocessor took 35.03ms. Allocated memory is still 60.8MB. Free memory was 42.4MB in the beginning and 41.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:16:46,377 INFO L158 Benchmark]: RCFGBuilder took 196.54ms. Allocated memory is still 60.8MB. Free memory was 41.3MB in the beginning and 33.6MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 14:16:46,377 INFO L158 Benchmark]: TraceAbstraction took 400.88ms. Allocated memory is still 60.8MB. Free memory was 33.0MB in the beginning and 39.0MB in the end (delta: -6.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 14:16:46,378 INFO L158 Benchmark]: Witness Printer took 33.88ms. Allocated memory is still 60.8MB. Free memory was 38.8MB in the beginning and 37.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 14:16:46,380 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 60.8MB. Free memory was 42.1MB in the beginning and 42.0MB in the end (delta: 48.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 203.36ms. Allocated memory is still 60.8MB. Free memory was 40.6MB in the beginning and 43.9MB in the end (delta: -3.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.16ms. Allocated memory is still 60.8MB. Free memory was 43.7MB in the beginning and 42.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.03ms. Allocated memory is still 60.8MB. Free memory was 42.4MB in the beginning and 41.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 196.54ms. Allocated memory is still 60.8MB. Free memory was 41.3MB in the beginning and 33.6MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 400.88ms. Allocated memory is still 60.8MB. Free memory was 33.0MB in the beginning and 39.0MB in the end (delta: -6.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 33.88ms. Allocated memory is still 60.8MB. Free memory was 38.8MB in the beginning and 37.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L12] double x; [L13] x = __VERIFIER_nondet_double() [L15] CALL __VERIFIER_assert(x==x) [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-07-13 14:16:46,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE