./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 35987657 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-?-3598765 [2022-07-21 01:18:31,801 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 01:18:31,804 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 01:18:31,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 01:18:31,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 01:18:31,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 01:18:31,837 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 01:18:31,838 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 01:18:31,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 01:18:31,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 01:18:31,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 01:18:31,842 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 01:18:31,842 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 01:18:31,843 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 01:18:31,844 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 01:18:31,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 01:18:31,846 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 01:18:31,846 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 01:18:31,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 01:18:31,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 01:18:31,850 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 01:18:31,851 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 01:18:31,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 01:18:31,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 01:18:31,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 01:18:31,857 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 01:18:31,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 01:18:31,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 01:18:31,858 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 01:18:31,859 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 01:18:31,859 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 01:18:31,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 01:18:31,860 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 01:18:31,861 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 01:18:31,862 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 01:18:31,863 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 01:18:31,863 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 01:18:31,864 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 01:18:31,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 01:18:31,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 01:18:31,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 01:18:31,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 01:18:31,866 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 01:18:31,887 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 01:18:31,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 01:18:31,893 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 01:18:31,893 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 01:18:31,894 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 01:18:31,894 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 01:18:31,895 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 01:18:31,895 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 01:18:31,895 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 01:18:31,896 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 01:18:31,904 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 01:18:31,904 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 01:18:31,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 01:18:31,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 01:18:31,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 01:18:31,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 01:18:31,905 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 01:18:31,906 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 01:18:31,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 01:18:31,906 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 01:18:31,906 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 01:18:31,906 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 01:18:31,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 01:18:31,907 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 01:18:31,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:18:31,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 01:18:31,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 01:18:31,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 01:18:31,908 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 01:18:31,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 01:18:31,908 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 01:18:31,908 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 01:18:31,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 01:18:31,909 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4232596288b496aee224c4b4f91c0d4dc8bab0d40c539eda179d1ef3a227da3 [2022-07-21 01:18:32,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 01:18:32,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 01:18:32,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 01:18:32,246 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 01:18:32,247 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 01:18:32,248 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_double.c [2022-07-21 01:18:32,311 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41d4b50be/2725a09429ed473982b1e4379fef97a3/FLAG9c7e2072b [2022-07-21 01:18:32,743 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 01:18:32,743 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_double.c [2022-07-21 01:18:32,748 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41d4b50be/2725a09429ed473982b1e4379fef97a3/FLAG9c7e2072b [2022-07-21 01:18:32,771 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41d4b50be/2725a09429ed473982b1e4379fef97a3 [2022-07-21 01:18:32,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 01:18:32,778 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 01:18:32,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 01:18:32,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 01:18:32,784 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 01:18:32,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:18:32" (1/1) ... [2022-07-21 01:18:32,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26342444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:32, skipping insertion in model container [2022-07-21 01:18:32,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:18:32" (1/1) ... [2022-07-21 01:18:32,791 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 01:18:32,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 01:18:32,920 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] [2022-07-21 01:18:32,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:18:32,937 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 01:18:32,951 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] [2022-07-21 01:18:32,953 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:18:32,985 INFO L208 MainTranslator]: Completed translation [2022-07-21 01:18:32,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:32 WrapperNode [2022-07-21 01:18:32,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 01:18:32,998 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 01:18:32,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 01:18:32,998 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 01:18:33,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:32" (1/1) ... [2022-07-21 01:18:33,011 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:32" (1/1) ... [2022-07-21 01:18:33,024 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2022-07-21 01:18:33,024 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 01:18:33,026 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 01:18:33,026 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 01:18:33,026 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 01:18:33,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:32" (1/1) ... [2022-07-21 01:18:33,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:32" (1/1) ... [2022-07-21 01:18:33,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:32" (1/1) ... [2022-07-21 01:18:33,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:32" (1/1) ... [2022-07-21 01:18:33,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:32" (1/1) ... [2022-07-21 01:18:33,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:32" (1/1) ... [2022-07-21 01:18:33,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:32" (1/1) ... [2022-07-21 01:18:33,046 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 01:18:33,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 01:18:33,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 01:18:33,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 01:18:33,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:32" (1/1) ... [2022-07-21 01:18:33,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:18:33,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 01:18:33,077 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) [2022-07-21 01:18:33,112 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 [2022-07-21 01:18:33,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 01:18:33,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 01:18:33,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 01:18:33,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 01:18:33,205 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 01:18:33,207 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 01:18:33,297 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 01:18:33,301 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 01:18:33,302 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 01:18:33,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:18:33 BoogieIcfgContainer [2022-07-21 01:18:33,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 01:18:33,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 01:18:33,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 01:18:33,310 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 01:18:33,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:18:32" (1/3) ... [2022-07-21 01:18:33,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f255cee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:18:33, skipping insertion in model container [2022-07-21 01:18:33,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:32" (2/3) ... [2022-07-21 01:18:33,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f255cee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:18:33, skipping insertion in model container [2022-07-21 01:18:33,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:18:33" (3/3) ... [2022-07-21 01:18:33,313 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double.c [2022-07-21 01:18:33,329 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 01:18:33,329 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 01:18:33,383 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 01:18:33,391 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@2ed7618, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@71af07f0 [2022-07-21 01:18:33,392 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 01:18:33,396 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) [2022-07-21 01:18:33,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-21 01:18:33,406 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:18:33,406 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-21 01:18:33,407 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:18:33,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:18:33,413 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2022-07-21 01:18:33,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 01:18:33,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679329242] [2022-07-21 01:18:33,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:18:33,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 01:18:33,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 01:18:33,527 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 01:18:33,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 01:18:33,567 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-21 01:18:33,570 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 01:18:33,571 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 01:18:33,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 01:18:33,577 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-21 01:18:33,581 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 01:18:33,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:18:33 BoogieIcfgContainer [2022-07-21 01:18:33,600 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 01:18:33,602 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 01:18:33,603 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 01:18:33,603 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 01:18:33,603 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:18:33" (3/4) ... [2022-07-21 01:18:33,606 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-21 01:18:33,606 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 01:18:33,608 INFO L158 Benchmark]: Toolchain (without parser) took 829.43ms. Allocated memory is still 67.1MB. Free memory was 47.1MB in the beginning and 46.1MB in the end (delta: 997.7kB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. [2022-07-21 01:18:33,610 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 67.1MB. Free memory was 48.5MB in the beginning and 48.4MB in the end (delta: 48.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:18:33,610 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.45ms. Allocated memory is still 67.1MB. Free memory was 46.9MB in the beginning and 50.6MB in the end (delta: -3.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-21 01:18:33,611 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.98ms. Allocated memory is still 67.1MB. Free memory was 50.6MB in the beginning and 49.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:18:33,612 INFO L158 Benchmark]: Boogie Preprocessor took 20.06ms. Allocated memory is still 67.1MB. Free memory was 49.2MB in the beginning and 48.4MB in the end (delta: 802.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:18:33,617 INFO L158 Benchmark]: RCFGBuilder took 256.52ms. Allocated memory is still 67.1MB. Free memory was 48.1MB in the beginning and 40.2MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-21 01:18:33,617 INFO L158 Benchmark]: TraceAbstraction took 293.61ms. Allocated memory is still 67.1MB. Free memory was 39.5MB in the beginning and 46.4MB in the end (delta: -6.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:18:33,618 INFO L158 Benchmark]: Witness Printer took 4.39ms. Allocated memory is still 67.1MB. Free memory was 46.4MB in the beginning and 46.1MB in the end (delta: 313.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:18:33,625 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 67.1MB. Free memory was 48.5MB in the beginning and 48.4MB in the end (delta: 48.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 217.45ms. Allocated memory is still 67.1MB. Free memory was 46.9MB in the beginning and 50.6MB in the end (delta: -3.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.98ms. Allocated memory is still 67.1MB. Free memory was 50.6MB in the beginning and 49.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.06ms. Allocated memory is still 67.1MB. Free memory was 49.2MB in the beginning and 48.4MB in the end (delta: 802.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 256.52ms. Allocated memory is still 67.1MB. Free memory was 48.1MB in the beginning and 40.2MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 293.61ms. Allocated memory is still 67.1MB. Free memory was 39.5MB in the beginning and 46.4MB in the end (delta: -6.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.39ms. Allocated memory is still 67.1MB. Free memory was 46.4MB in the beginning and 46.1MB in the end (delta: 313.3kB). 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 [2022-07-21 01:18:33,670 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-?-3598765 [2022-07-21 01:18:35,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 01:18:35,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 01:18:35,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 01:18:35,552 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 01:18:35,553 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 01:18:35,554 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 01:18:35,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 01:18:35,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 01:18:35,558 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 01:18:35,559 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 01:18:35,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 01:18:35,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 01:18:35,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 01:18:35,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 01:18:35,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 01:18:35,564 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 01:18:35,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 01:18:35,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 01:18:35,572 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 01:18:35,575 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 01:18:35,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 01:18:35,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 01:18:35,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 01:18:35,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 01:18:35,588 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 01:18:35,588 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 01:18:35,589 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 01:18:35,595 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 01:18:35,595 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 01:18:35,596 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 01:18:35,596 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 01:18:35,597 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 01:18:35,598 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 01:18:35,598 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 01:18:35,599 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 01:18:35,599 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 01:18:35,600 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 01:18:35,602 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 01:18:35,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 01:18:35,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 01:18:35,605 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 01:18:35,605 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-21 01:18:35,634 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 01:18:35,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 01:18:35,635 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 01:18:35,635 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 01:18:35,636 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 01:18:35,636 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 01:18:35,637 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 01:18:35,637 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 01:18:35,637 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 01:18:35,637 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 01:18:35,637 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 01:18:35,647 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 01:18:35,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 01:18:35,648 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 01:18:35,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 01:18:35,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 01:18:35,648 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 01:18:35,648 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 01:18:35,650 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 01:18:35,650 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 01:18:35,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 01:18:35,655 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 01:18:35,656 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 01:18:35,656 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 01:18:35,656 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 01:18:35,656 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 01:18:35,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:18:35,657 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 01:18:35,657 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 01:18:35,657 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 01:18:35,657 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 01:18:35,658 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 01:18:35,658 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 01:18:35,658 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 01:18:35,658 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 01:18:35,659 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 01:18:35,659 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4232596288b496aee224c4b4f91c0d4dc8bab0d40c539eda179d1ef3a227da3 [2022-07-21 01:18:35,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 01:18:35,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 01:18:35,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 01:18:35,979 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 01:18:35,980 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 01:18:35,981 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_double.c [2022-07-21 01:18:36,044 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d83ef1e62/64ceaac3088f4a45ac8375eb76535cac/FLAG7753dad90 [2022-07-21 01:18:36,429 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 01:18:36,430 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_double.c [2022-07-21 01:18:36,435 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d83ef1e62/64ceaac3088f4a45ac8375eb76535cac/FLAG7753dad90 [2022-07-21 01:18:36,846 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d83ef1e62/64ceaac3088f4a45ac8375eb76535cac [2022-07-21 01:18:36,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 01:18:36,852 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 01:18:36,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 01:18:36,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 01:18:36,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 01:18:36,857 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:18:36" (1/1) ... [2022-07-21 01:18:36,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e0c7d2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:36, skipping insertion in model container [2022-07-21 01:18:36,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:18:36" (1/1) ... [2022-07-21 01:18:36,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 01:18:36,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 01:18:36,998 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] [2022-07-21 01:18:37,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:18:37,015 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 01:18:37,025 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] [2022-07-21 01:18:37,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:18:37,038 INFO L208 MainTranslator]: Completed translation [2022-07-21 01:18:37,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:37 WrapperNode [2022-07-21 01:18:37,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 01:18:37,040 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 01:18:37,040 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 01:18:37,040 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 01:18:37,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:37" (1/1) ... [2022-07-21 01:18:37,059 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:37" (1/1) ... [2022-07-21 01:18:37,073 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 23 [2022-07-21 01:18:37,074 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 01:18:37,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 01:18:37,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 01:18:37,076 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 01:18:37,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:37" (1/1) ... [2022-07-21 01:18:37,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:37" (1/1) ... [2022-07-21 01:18:37,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:37" (1/1) ... [2022-07-21 01:18:37,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:37" (1/1) ... [2022-07-21 01:18:37,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:37" (1/1) ... [2022-07-21 01:18:37,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:37" (1/1) ... [2022-07-21 01:18:37,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:37" (1/1) ... [2022-07-21 01:18:37,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 01:18:37,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 01:18:37,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 01:18:37,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 01:18:37,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:37" (1/1) ... [2022-07-21 01:18:37,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:18:37,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 01:18:37,153 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) [2022-07-21 01:18:37,177 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 [2022-07-21 01:18:37,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 01:18:37,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 01:18:37,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 01:18:37,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 01:18:37,259 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 01:18:37,261 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 01:18:37,338 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 01:18:37,343 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 01:18:37,344 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 01:18:37,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:18:37 BoogieIcfgContainer [2022-07-21 01:18:37,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 01:18:37,348 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 01:18:37,348 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 01:18:37,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 01:18:37,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:18:36" (1/3) ... [2022-07-21 01:18:37,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d9998d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:18:37, skipping insertion in model container [2022-07-21 01:18:37,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:37" (2/3) ... [2022-07-21 01:18:37,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d9998d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:18:37, skipping insertion in model container [2022-07-21 01:18:37,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:18:37" (3/3) ... [2022-07-21 01:18:37,354 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double.c [2022-07-21 01:18:37,366 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 01:18:37,366 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 01:18:37,421 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 01:18:37,428 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@258beee2, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7168e06a [2022-07-21 01:18:37,429 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 01:18:37,433 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) [2022-07-21 01:18:37,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-21 01:18:37,447 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:18:37,448 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-21 01:18:37,448 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:18:37,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:18:37,454 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2022-07-21 01:18:37,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:18:37,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219185159] [2022-07-21 01:18:37,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:18:37,467 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:18:37,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:18:37,475 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) [2022-07-21 01:18:37,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 01:18:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 01:18:37,589 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 01:18:37,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 01:18:37,614 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-07-21 01:18:37,615 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 01:18:37,616 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 01:18:37,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-21 01:18:37,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 01:18:37,840 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-21 01:18:37,844 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 01:18:37,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:18:37 BoogieIcfgContainer [2022-07-21 01:18:37,861 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 01:18:37,863 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 01:18:37,863 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 01:18:37,864 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 01:18:37,865 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:18:37" (3/4) ... [2022-07-21 01:18:37,867 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-21 01:18:37,907 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 01:18:37,907 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 01:18:37,909 INFO L158 Benchmark]: Toolchain (without parser) took 1057.04ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 30.2MB in the beginning and 39.8MB in the end (delta: -9.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:18:37,910 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 52.4MB. Free memory is still 34.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:18:37,911 INFO L158 Benchmark]: CACSL2BoogieTranslator took 186.02ms. Allocated memory is still 52.4MB. Free memory was 30.1MB in the beginning and 33.7MB in the end (delta: -3.6MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2022-07-21 01:18:37,913 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.21ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 33.7MB in the beginning and 46.4MB in the end (delta: -12.6MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2022-07-21 01:18:37,913 INFO L158 Benchmark]: Boogie Preprocessor took 34.17ms. Allocated memory is still 62.9MB. Free memory was 46.4MB in the beginning and 45.4MB in the end (delta: 997.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 01:18:37,916 INFO L158 Benchmark]: RCFGBuilder took 236.42ms. Allocated memory is still 62.9MB. Free memory was 45.3MB in the beginning and 37.5MB in the end (delta: 7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-21 01:18:37,916 INFO L158 Benchmark]: TraceAbstraction took 513.80ms. Allocated memory is still 62.9MB. Free memory was 37.1MB in the beginning and 41.4MB in the end (delta: -4.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:18:37,917 INFO L158 Benchmark]: Witness Printer took 44.82ms. Allocated memory is still 62.9MB. Free memory was 41.4MB in the beginning and 39.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:18:37,921 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 52.4MB. Free memory is still 34.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 186.02ms. Allocated memory is still 52.4MB. Free memory was 30.1MB in the beginning and 33.7MB in the end (delta: -3.6MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.21ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 33.7MB in the beginning and 46.4MB in the end (delta: -12.6MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.17ms. Allocated memory is still 62.9MB. Free memory was 46.4MB in the beginning and 45.4MB in the end (delta: 997.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 236.42ms. Allocated memory is still 62.9MB. Free memory was 45.3MB in the beginning and 37.5MB in the end (delta: 7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 513.80ms. Allocated memory is still 62.9MB. Free memory was 37.1MB in the beginning and 41.4MB in the end (delta: -4.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 44.82ms. Allocated memory is still 62.9MB. Free memory was 41.4MB in the beginning and 39.8MB in the end (delta: 1.6MB). 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 - 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: 0.4s, 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! [2022-07-21 01:18:37,949 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