./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 c3fed411 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-tmp.no-commuhash-c3fed41 [2021-12-15 23:29:45,440 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 23:29:45,442 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 23:29:45,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 23:29:45,499 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 23:29:45,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 23:29:45,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 23:29:45,505 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 23:29:45,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 23:29:45,511 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 23:29:45,512 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 23:29:45,513 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 23:29:45,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 23:29:45,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 23:29:45,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 23:29:45,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 23:29:45,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 23:29:45,521 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 23:29:45,522 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 23:29:45,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 23:29:45,527 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 23:29:45,528 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 23:29:45,530 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 23:29:45,535 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 23:29:45,537 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 23:29:45,539 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 23:29:45,539 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 23:29:45,540 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 23:29:45,541 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 23:29:45,541 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 23:29:45,541 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 23:29:45,542 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 23:29:45,543 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 23:29:45,544 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 23:29:45,545 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 23:29:45,545 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 23:29:45,545 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 23:29:45,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 23:29:45,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 23:29:45,546 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 23:29:45,547 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 23:29:45,548 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 23:29:45,575 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 23:29:45,576 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 23:29:45,576 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 23:29:45,576 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 23:29:45,577 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 23:29:45,577 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 23:29:45,578 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 23:29:45,578 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 23:29:45,578 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 23:29:45,578 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 23:29:45,579 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 23:29:45,579 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 23:29:45,579 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 23:29:45,579 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 23:29:45,580 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 23:29:45,580 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 23:29:45,580 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 23:29:45,580 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 23:29:45,580 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 23:29:45,580 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 23:29:45,581 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 23:29:45,581 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 23:29:45,581 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 23:29:45,581 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 23:29:45,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 23:29:45,582 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 23:29:45,582 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 23:29:45,582 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 23:29:45,582 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 23:29:45,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 23:29:45,582 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 23:29:45,583 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 23:29:45,583 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 23:29:45,583 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 23:29:45,583 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4232596288b496aee224c4b4f91c0d4dc8bab0d40c539eda179d1ef3a227da3 [2021-12-15 23:29:45,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 23:29:45,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 23:29:45,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 23:29:45,798 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 23:29:45,798 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 23:29:45,799 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_double.c [2021-12-15 23:29:45,847 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc90240be/f4cb4b8e9786445488f9a212559fac90/FLAGc443c4c51 [2021-12-15 23:29:46,145 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 23:29:46,146 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_double.c [2021-12-15 23:29:46,151 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc90240be/f4cb4b8e9786445488f9a212559fac90/FLAGc443c4c51 [2021-12-15 23:29:46,590 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc90240be/f4cb4b8e9786445488f9a212559fac90 [2021-12-15 23:29:46,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 23:29:46,594 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 23:29:46,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 23:29:46,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 23:29:46,598 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 23:29:46,599 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:29:46" (1/1) ... [2021-12-15 23:29:46,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65f7942f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:46, skipping insertion in model container [2021-12-15 23:29:46,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:29:46" (1/1) ... [2021-12-15 23:29:46,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 23:29:46,613 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 23:29:46,697 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] [2021-12-15 23:29:46,723 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 23:29:46,731 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 23:29:46,739 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] [2021-12-15 23:29:46,741 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 23:29:46,750 INFO L208 MainTranslator]: Completed translation [2021-12-15 23:29:46,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:46 WrapperNode [2021-12-15 23:29:46,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 23:29:46,752 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 23:29:46,752 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 23:29:46,752 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 23:29:46,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:46" (1/1) ... [2021-12-15 23:29:46,763 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:46" (1/1) ... [2021-12-15 23:29:46,773 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2021-12-15 23:29:46,774 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 23:29:46,775 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 23:29:46,775 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 23:29:46,775 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 23:29:46,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:46" (1/1) ... [2021-12-15 23:29:46,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:46" (1/1) ... [2021-12-15 23:29:46,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:46" (1/1) ... [2021-12-15 23:29:46,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:46" (1/1) ... [2021-12-15 23:29:46,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:46" (1/1) ... [2021-12-15 23:29:46,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:46" (1/1) ... [2021-12-15 23:29:46,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:46" (1/1) ... [2021-12-15 23:29:46,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 23:29:46,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 23:29:46,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 23:29:46,793 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 23:29:46,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:46" (1/1) ... [2021-12-15 23:29:46,799 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 23:29:46,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 23:29:46,820 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) [2021-12-15 23:29:46,839 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 [2021-12-15 23:29:46,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 23:29:46,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 23:29:46,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 23:29:46,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 23:29:46,907 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 23:29:46,909 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 23:29:46,987 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 23:29:46,991 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 23:29:46,991 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-15 23:29:46,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:29:46 BoogieIcfgContainer [2021-12-15 23:29:46,992 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 23:29:46,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 23:29:46,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 23:29:46,995 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 23:29:46,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:29:46" (1/3) ... [2021-12-15 23:29:46,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@111baaef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:29:46, skipping insertion in model container [2021-12-15 23:29:46,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:46" (2/3) ... [2021-12-15 23:29:46,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@111baaef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:29:46, skipping insertion in model container [2021-12-15 23:29:46,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:29:46" (3/3) ... [2021-12-15 23:29:46,998 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double.c [2021-12-15 23:29:47,001 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 23:29:47,001 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 23:29:47,041 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 23:29:47,048 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 23:29:47,048 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 23:29:47,059 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) [2021-12-15 23:29:47,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-12-15 23:29:47,068 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:29:47,069 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-12-15 23:29:47,070 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:29:47,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:29:47,074 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-12-15 23:29:47,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 23:29:47,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614946383] [2021-12-15 23:29:47,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:29:47,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 23:29:47,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 23:29:47,143 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 23:29:47,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 23:29:47,175 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 23:29:47,177 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-15 23:29:47,177 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 23:29:47,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 23:29:47,182 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-12-15 23:29:47,184 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 23:29:47,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 11:29:47 BoogieIcfgContainer [2021-12-15 23:29:47,198 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 23:29:47,200 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 23:29:47,200 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 23:29:47,200 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 23:29:47,201 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:29:46" (3/4) ... [2021-12-15 23:29:47,203 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-15 23:29:47,203 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 23:29:47,204 INFO L158 Benchmark]: Toolchain (without parser) took 609.64ms. Allocated memory is still 102.8MB. Free memory was 76.5MB in the beginning and 56.2MB in the end (delta: 20.2MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2021-12-15 23:29:47,205 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 102.8MB. Free memory is still 60.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 23:29:47,206 INFO L158 Benchmark]: CACSL2BoogieTranslator took 154.80ms. Allocated memory is still 102.8MB. Free memory was 76.2MB in the beginning and 79.8MB in the end (delta: -3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 23:29:47,206 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.31ms. Allocated memory is still 102.8MB. Free memory was 79.8MB in the beginning and 78.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 23:29:47,207 INFO L158 Benchmark]: Boogie Preprocessor took 17.33ms. Allocated memory is still 102.8MB. Free memory was 78.3MB in the beginning and 77.4MB in the end (delta: 878.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 23:29:47,210 INFO L158 Benchmark]: RCFGBuilder took 199.58ms. Allocated memory is still 102.8MB. Free memory was 77.4MB in the beginning and 69.3MB in the end (delta: 8.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 23:29:47,211 INFO L158 Benchmark]: TraceAbstraction took 204.87ms. Allocated memory is still 102.8MB. Free memory was 68.8MB in the beginning and 56.8MB in the end (delta: 12.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 23:29:47,211 INFO L158 Benchmark]: Witness Printer took 3.07ms. Allocated memory is still 102.8MB. Free memory was 56.5MB in the beginning and 56.2MB in the end (delta: 273.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 23:29:47,217 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 102.8MB. Free memory is still 60.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 154.80ms. Allocated memory is still 102.8MB. Free memory was 76.2MB in the beginning and 79.8MB in the end (delta: -3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.31ms. Allocated memory is still 102.8MB. Free memory was 79.8MB in the beginning and 78.6MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.33ms. Allocated memory is still 102.8MB. Free memory was 78.3MB in the beginning and 77.4MB in the end (delta: 878.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 199.58ms. Allocated memory is still 102.8MB. Free memory was 77.4MB in the beginning and 69.3MB in the end (delta: 8.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 204.87ms. Allocated memory is still 102.8MB. Free memory was 68.8MB in the beginning and 56.8MB in the end (delta: 12.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 3.07ms. Allocated memory is still 102.8MB. Free memory was 56.5MB in the beginning and 56.2MB in the end (delta: 273.2kB). 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: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 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 [2021-12-15 23:29:47,251 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-tmp.no-commuhash-c3fed41 [2021-12-15 23:29:48,883 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 23:29:48,885 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 23:29:48,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 23:29:48,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 23:29:48,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 23:29:48,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 23:29:48,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 23:29:48,928 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 23:29:48,931 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 23:29:48,932 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 23:29:48,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 23:29:48,934 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 23:29:48,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 23:29:48,936 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 23:29:48,940 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 23:29:48,941 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 23:29:48,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 23:29:48,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 23:29:48,947 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 23:29:48,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 23:29:48,948 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 23:29:48,949 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 23:29:48,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 23:29:48,955 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 23:29:48,955 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 23:29:48,955 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 23:29:48,956 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 23:29:48,957 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 23:29:48,957 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 23:29:48,957 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 23:29:48,958 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 23:29:48,959 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 23:29:48,959 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 23:29:48,960 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 23:29:48,960 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 23:29:48,961 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 23:29:48,961 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 23:29:48,961 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 23:29:48,962 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 23:29:48,963 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 23:29:48,963 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 23:29:48,989 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 23:29:48,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 23:29:48,991 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 23:29:48,991 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 23:29:48,991 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 23:29:48,992 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 23:29:48,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 23:29:48,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 23:29:48,993 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 23:29:48,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 23:29:48,993 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 23:29:48,994 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 23:29:48,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 23:29:48,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 23:29:48,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 23:29:48,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 23:29:48,994 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 23:29:48,994 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 23:29:48,994 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 23:29:48,995 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 23:29:48,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 23:29:48,995 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 23:29:48,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 23:29:48,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 23:29:48,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 23:29:48,995 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 23:29:48,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 23:29:48,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 23:29:48,996 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 23:29:48,996 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 23:29:48,996 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 23:29:48,996 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 23:29:48,997 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 23:29:48,997 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 23:29:48,997 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 23:29:48,997 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 23:29:48,997 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 23:29:48,997 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4232596288b496aee224c4b4f91c0d4dc8bab0d40c539eda179d1ef3a227da3 [2021-12-15 23:29:49,257 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 23:29:49,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 23:29:49,282 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 23:29:49,283 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 23:29:49,283 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 23:29:49,284 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_double.c [2021-12-15 23:29:49,335 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12d430944/67c1e1a64a7743598861b9e43700cb68/FLAGfdfb7209b [2021-12-15 23:29:49,657 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 23:29:49,657 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_double.c [2021-12-15 23:29:49,661 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12d430944/67c1e1a64a7743598861b9e43700cb68/FLAGfdfb7209b [2021-12-15 23:29:50,100 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12d430944/67c1e1a64a7743598861b9e43700cb68 [2021-12-15 23:29:50,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 23:29:50,102 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 23:29:50,103 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 23:29:50,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 23:29:50,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 23:29:50,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:29:50" (1/1) ... [2021-12-15 23:29:50,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ccf71e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:50, skipping insertion in model container [2021-12-15 23:29:50,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:29:50" (1/1) ... [2021-12-15 23:29:50,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 23:29:50,117 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 23:29:50,194 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] [2021-12-15 23:29:50,199 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 23:29:50,206 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 23:29:50,214 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] [2021-12-15 23:29:50,215 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 23:29:50,248 INFO L208 MainTranslator]: Completed translation [2021-12-15 23:29:50,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:50 WrapperNode [2021-12-15 23:29:50,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 23:29:50,249 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 23:29:50,250 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 23:29:50,250 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 23:29:50,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:50" (1/1) ... [2021-12-15 23:29:50,258 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:50" (1/1) ... [2021-12-15 23:29:50,267 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 23 [2021-12-15 23:29:50,267 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 23:29:50,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 23:29:50,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 23:29:50,268 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 23:29:50,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:50" (1/1) ... [2021-12-15 23:29:50,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:50" (1/1) ... [2021-12-15 23:29:50,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:50" (1/1) ... [2021-12-15 23:29:50,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:50" (1/1) ... [2021-12-15 23:29:50,277 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:50" (1/1) ... [2021-12-15 23:29:50,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:50" (1/1) ... [2021-12-15 23:29:50,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:50" (1/1) ... [2021-12-15 23:29:50,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 23:29:50,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 23:29:50,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 23:29:50,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 23:29:50,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:50" (1/1) ... [2021-12-15 23:29:50,285 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 23:29:50,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 23:29:50,310 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) [2021-12-15 23:29:50,328 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 [2021-12-15 23:29:50,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 23:29:50,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 23:29:50,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 23:29:50,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 23:29:50,396 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 23:29:50,397 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 23:29:50,465 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 23:29:50,470 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 23:29:50,471 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-15 23:29:50,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:29:50 BoogieIcfgContainer [2021-12-15 23:29:50,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 23:29:50,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 23:29:50,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 23:29:50,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 23:29:50,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:29:50" (1/3) ... [2021-12-15 23:29:50,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75e32362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:29:50, skipping insertion in model container [2021-12-15 23:29:50,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:29:50" (2/3) ... [2021-12-15 23:29:50,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75e32362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:29:50, skipping insertion in model container [2021-12-15 23:29:50,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:29:50" (3/3) ... [2021-12-15 23:29:50,478 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double.c [2021-12-15 23:29:50,482 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 23:29:50,482 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 23:29:50,521 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 23:29:50,527 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 23:29:50,527 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 23:29:50,537 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) [2021-12-15 23:29:50,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-12-15 23:29:50,546 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:29:50,547 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-12-15 23:29:50,547 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:29:50,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:29:50,553 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-12-15 23:29:50,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 23:29:50,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [147934149] [2021-12-15 23:29:50,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:29:50,566 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 23:29:50,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 23:29:50,567 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) [2021-12-15 23:29:50,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 23:29:50,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 23:29:50,633 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 23:29:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 23:29:50,652 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-12-15 23:29:50,653 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-15 23:29:50,654 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 23:29:50,665 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-15 23:29:50,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 23:29:50,866 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-12-15 23:29:50,869 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 23:29:50,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 11:29:50 BoogieIcfgContainer [2021-12-15 23:29:50,883 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 23:29:50,885 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 23:29:50,885 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 23:29:50,885 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 23:29:50,886 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:29:50" (3/4) ... [2021-12-15 23:29:50,887 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-15 23:29:50,911 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 23:29:50,912 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 23:29:50,913 INFO L158 Benchmark]: Toolchain (without parser) took 810.68ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 31.7MB in the beginning and 43.5MB in the end (delta: -11.8MB). Peak memory consumption was 464.5kB. Max. memory is 16.1GB. [2021-12-15 23:29:50,914 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 54.5MB. Free memory was 36.7MB in the beginning and 36.7MB in the end (delta: 44.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 23:29:50,914 INFO L158 Benchmark]: CACSL2BoogieTranslator took 145.42ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 31.5MB in the beginning and 50.9MB in the end (delta: -19.3MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2021-12-15 23:29:50,916 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.42ms. Allocated memory is still 67.1MB. Free memory was 50.9MB in the beginning and 49.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 23:29:50,917 INFO L158 Benchmark]: Boogie Preprocessor took 11.93ms. Allocated memory is still 67.1MB. Free memory was 49.5MB in the beginning and 48.5MB in the end (delta: 998.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 23:29:50,919 INFO L158 Benchmark]: RCFGBuilder took 191.65ms. Allocated memory is still 67.1MB. Free memory was 48.3MB in the beginning and 40.6MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 23:29:50,919 INFO L158 Benchmark]: TraceAbstraction took 410.16ms. Allocated memory is still 67.1MB. Free memory was 40.2MB in the beginning and 45.0MB in the end (delta: -4.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 23:29:50,920 INFO L158 Benchmark]: Witness Printer took 27.27ms. Allocated memory is still 67.1MB. Free memory was 45.0MB in the beginning and 43.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 23:29:50,924 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 54.5MB. Free memory was 36.7MB in the beginning and 36.7MB in the end (delta: 44.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 145.42ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 31.5MB in the beginning and 50.9MB in the end (delta: -19.3MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.42ms. Allocated memory is still 67.1MB. Free memory was 50.9MB in the beginning and 49.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 11.93ms. Allocated memory is still 67.1MB. Free memory was 49.5MB in the beginning and 48.5MB in the end (delta: 998.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 191.65ms. Allocated memory is still 67.1MB. Free memory was 48.3MB in the beginning and 40.6MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 410.16ms. Allocated memory is still 67.1MB. Free memory was 40.2MB in the beginning and 45.0MB in the end (delta: -4.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 27.27ms. Allocated memory is still 67.1MB. Free memory was 45.0MB in the beginning and 43.5MB in the end (delta: 1.5MB). 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, PartialOrderReductionTime: 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! [2021-12-15 23:29:50,952 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