./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/nan_float.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec 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_float.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 e3490f452c75bd943c0f7c3f7fb58032fe6d705c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -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_float.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 e3490f452c75bd943c0f7c3f7fb58032fe6d705c .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 00:41:54,212 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 00:41:54,214 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 00:41:54,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 00:41:54,249 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 00:41:54,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 00:41:54,253 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 00:41:54,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 00:41:54,258 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 00:41:54,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 00:41:54,263 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 00:41:54,271 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 00:41:54,271 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 00:41:54,273 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 00:41:54,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 00:41:54,279 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 00:41:54,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 00:41:54,282 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 00:41:54,284 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 00:41:54,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 00:41:54,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 00:41:54,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 00:41:54,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 00:41:54,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 00:41:54,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 00:41:54,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 00:41:54,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 00:41:54,302 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 00:41:54,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 00:41:54,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 00:41:54,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 00:41:54,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 00:41:54,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 00:41:54,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 00:41:54,306 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 00:41:54,307 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 00:41:54,307 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 00:41:54,307 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 00:41:54,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 00:41:54,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 00:41:54,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 00:41:54,315 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 00:41:54,344 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 00:41:54,344 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 00:41:54,345 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 00:41:54,345 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 00:41:54,347 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 00:41:54,347 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 00:41:54,347 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 00:41:54,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 00:41:54,348 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 00:41:54,348 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 00:41:54,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 00:41:54,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 00:41:54,349 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 00:41:54,349 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 00:41:54,349 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 00:41:54,349 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 00:41:54,349 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 00:41:54,350 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 00:41:54,350 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 00:41:54,350 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 00:41:54,350 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 00:41:54,350 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 00:41:54,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 00:41:54,351 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 00:41:54,351 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 00:41:54,351 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 00:41:54,351 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 00:41:54,351 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 00:41:54,351 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 00:41:54,351 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 00:41:54,352 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3490f452c75bd943c0f7c3f7fb58032fe6d705c [2021-08-26 00:41:54,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 00:41:54,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 00:41:54,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 00:41:54,659 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 00:41:54,672 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 00:41:54,673 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_float.c [2021-08-26 00:41:54,730 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f911b3f6/6ca0a7b403a94346a159a97ccca18a79/FLAG0bb36f459 [2021-08-26 00:41:55,095 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 00:41:55,095 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_float.c [2021-08-26 00:41:55,099 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f911b3f6/6ca0a7b403a94346a159a97ccca18a79/FLAG0bb36f459 [2021-08-26 00:41:55,533 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f911b3f6/6ca0a7b403a94346a159a97ccca18a79 [2021-08-26 00:41:55,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 00:41:55,540 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 00:41:55,543 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 00:41:55,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 00:41:55,546 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 00:41:55,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:41:55" (1/1) ... [2021-08-26 00:41:55,548 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bec644e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:55, skipping insertion in model container [2021-08-26 00:41:55,548 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:41:55" (1/1) ... [2021-08-26 00:41:55,553 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 00:41:55,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 00:41:55,666 WARN L228 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_float.c[434,447] [2021-08-26 00:41:55,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 00:41:55,682 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 00:41:55,689 WARN L228 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_float.c[434,447] [2021-08-26 00:41:55,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 00:41:55,698 INFO L208 MainTranslator]: Completed translation [2021-08-26 00:41:55,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:55 WrapperNode [2021-08-26 00:41:55,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 00:41:55,700 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 00:41:55,700 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 00:41:55,700 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 00:41:55,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:55" (1/1) ... [2021-08-26 00:41:55,737 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:55" (1/1) ... [2021-08-26 00:41:55,750 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 00:41:55,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 00:41:55,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 00:41:55,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 00:41:55,757 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:55" (1/1) ... [2021-08-26 00:41:55,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:55" (1/1) ... [2021-08-26 00:41:55,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:55" (1/1) ... [2021-08-26 00:41:55,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:55" (1/1) ... [2021-08-26 00:41:55,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:55" (1/1) ... [2021-08-26 00:41:55,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:55" (1/1) ... [2021-08-26 00:41:55,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:55" (1/1) ... [2021-08-26 00:41:55,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 00:41:55,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 00:41:55,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 00:41:55,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 00:41:55,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:55" (1/1) ... [2021-08-26 00:41:55,779 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 00:41:55,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 00:41:55,827 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) [2021-08-26 00:41:55,886 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 [2021-08-26 00:41:55,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 00:41:55,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 00:41:55,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 00:41:55,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 00:41:56,073 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 00:41:56,073 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-08-26 00:41:56,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:41:56 BoogieIcfgContainer [2021-08-26 00:41:56,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 00:41:56,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 00:41:56,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 00:41:56,078 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 00:41:56,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 12:41:55" (1/3) ... [2021-08-26 00:41:56,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a5718db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:41:56, skipping insertion in model container [2021-08-26 00:41:56,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:55" (2/3) ... [2021-08-26 00:41:56,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a5718db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:41:56, skipping insertion in model container [2021-08-26 00:41:56,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:41:56" (3/3) ... [2021-08-26 00:41:56,080 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_float.c [2021-08-26 00:41:56,083 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 00:41:56,084 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 00:41:56,112 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 00:41:56,117 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-08-26 00:41:56,117 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 00:41:56,126 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) [2021-08-26 00:41:56,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-26 00:41:56,128 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 00:41:56,129 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-26 00:41:56,129 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 00:41:56,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 00:41:56,133 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-08-26 00:41:56,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 00:41:56,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795194540] [2021-08-26 00:41:56,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 00:41:56,140 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 00:41:56,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 00:41:56,204 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-26 00:41:56,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 00:41:56,227 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-26 00:41:56,228 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-26 00:41:56,229 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:41:56,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 00:41:56,234 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 00:41:56,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 12:41:56 BoogieIcfgContainer [2021-08-26 00:41:56,244 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 00:41:56,245 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 00:41:56,245 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 00:41:56,245 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 00:41:56,246 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:41:56" (3/4) ... [2021-08-26 00:41:56,247 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-26 00:41:56,248 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 00:41:56,249 INFO L168 Benchmark]: Toolchain (without parser) took 708.03 ms. Allocated memory was 52.4 MB in the beginning and 73.4 MB in the end (delta: 21.0 MB). Free memory was 30.5 MB in the beginning and 52.4 MB in the end (delta: -21.9 MB). Peak memory consumption was 395.3 kB. Max. memory is 16.1 GB. [2021-08-26 00:41:56,250 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 52.4 MB. Free memory was 34.4 MB in the beginning and 34.3 MB in the end (delta: 71.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:41:56,250 INFO L168 Benchmark]: CACSL2BoogieTranslator took 156.31 ms. Allocated memory is still 52.4 MB. Free memory was 30.4 MB in the beginning and 32.7 MB in the end (delta: -2.3 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2021-08-26 00:41:56,251 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.13 ms. Allocated memory was 52.4 MB in the beginning and 73.4 MB in the end (delta: 21.0 MB). Free memory was 32.7 MB in the beginning and 57.9 MB in the end (delta: -25.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 00:41:56,251 INFO L168 Benchmark]: Boogie Preprocessor took 18.86 ms. Allocated memory is still 73.4 MB. Free memory was 57.7 MB in the beginning and 56.8 MB in the end (delta: 854.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:41:56,251 INFO L168 Benchmark]: RCFGBuilder took 303.15 ms. Allocated memory is still 73.4 MB. Free memory was 56.8 MB in the beginning and 46.5 MB in the end (delta: 10.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-08-26 00:41:56,252 INFO L168 Benchmark]: TraceAbstraction took 168.97 ms. Allocated memory is still 73.4 MB. Free memory was 46.0 MB in the beginning and 52.8 MB in the end (delta: -6.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:41:56,252 INFO L168 Benchmark]: Witness Printer took 2.81 ms. Allocated memory is still 73.4 MB. Free memory was 52.8 MB in the beginning and 52.4 MB in the end (delta: 311.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:41:56,258 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 52.4 MB. Free memory was 34.4 MB in the beginning and 34.3 MB in the end (delta: 71.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 156.31 ms. Allocated memory is still 52.4 MB. Free memory was 30.4 MB in the beginning and 32.7 MB in the end (delta: -2.3 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.13 ms. Allocated memory was 52.4 MB in the beginning and 73.4 MB in the end (delta: 21.0 MB). Free memory was 32.7 MB in the beginning and 57.9 MB in the end (delta: -25.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.86 ms. Allocated memory is still 73.4 MB. Free memory was 57.7 MB in the beginning and 56.8 MB in the end (delta: 854.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 303.15 ms. Allocated memory is still 73.4 MB. Free memory was 56.8 MB in the beginning and 46.5 MB in the end (delta: 10.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 168.97 ms. Allocated memory is still 73.4 MB. Free memory was 46.0 MB in the beginning and 52.8 MB in the end (delta: -6.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 2.81 ms. Allocated memory is still 73.4 MB. Free memory was 52.8 MB in the beginning and 52.4 MB in the end (delta: 311.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms 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 someBinaryFLOATComparisonOperation at line 15. Possible FailurePath: [L12] float x; [L13] x = __VERIFIER_nondet_float() [L8] COND TRUE !(cond) [L8] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 122.4ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 5.2ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms 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, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 7.3ms SsaConstructionTime, 21.8ms SatisfiabilityAnalysisTime, 0.0ms 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 [2021-08-26 00:41:56,295 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... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 00:41:58,466 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 00:41:58,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 00:41:58,505 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 00:41:58,505 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 00:41:58,506 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 00:41:58,507 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 00:41:58,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 00:41:58,529 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 00:41:58,530 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 00:41:58,530 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 00:41:58,531 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 00:41:58,531 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 00:41:58,532 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 00:41:58,533 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 00:41:58,533 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 00:41:58,534 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 00:41:58,535 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 00:41:58,536 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 00:41:58,537 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 00:41:58,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 00:41:58,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 00:41:58,539 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 00:41:58,540 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 00:41:58,552 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 00:41:58,553 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 00:41:58,553 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 00:41:58,553 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 00:41:58,554 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 00:41:58,554 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 00:41:58,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 00:41:58,555 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 00:41:58,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 00:41:58,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 00:41:58,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 00:41:58,557 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 00:41:58,557 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 00:41:58,557 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 00:41:58,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 00:41:58,558 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 00:41:58,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 00:41:58,559 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-26 00:41:58,586 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 00:41:58,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 00:41:58,587 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 00:41:58,587 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 00:41:58,588 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 00:41:58,588 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 00:41:58,588 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 00:41:58,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 00:41:58,588 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 00:41:58,588 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 00:41:58,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 00:41:58,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 00:41:58,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 00:41:58,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 00:41:58,589 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-26 00:41:58,589 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-26 00:41:58,589 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 00:41:58,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 00:41:58,589 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 00:41:58,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 00:41:58,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 00:41:58,589 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 00:41:58,589 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 00:41:58,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 00:41:58,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 00:41:58,590 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 00:41:58,590 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 00:41:58,590 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-26 00:41:58,590 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-26 00:41:58,590 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 00:41:58,590 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 00:41:58,590 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-26 00:41:58,590 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3490f452c75bd943c0f7c3f7fb58032fe6d705c [2021-08-26 00:41:58,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 00:41:58,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 00:41:58,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 00:41:58,906 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 00:41:58,911 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 00:41:58,911 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_float.c [2021-08-26 00:41:58,979 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1220f86a1/ee45df2d4b814f1ea976270daf4f8e92/FLAG57d6c7339 [2021-08-26 00:41:59,309 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 00:41:59,309 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_float.c [2021-08-26 00:41:59,315 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1220f86a1/ee45df2d4b814f1ea976270daf4f8e92/FLAG57d6c7339 [2021-08-26 00:41:59,755 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1220f86a1/ee45df2d4b814f1ea976270daf4f8e92 [2021-08-26 00:41:59,757 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 00:41:59,759 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 00:41:59,760 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 00:41:59,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 00:41:59,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 00:41:59,763 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:41:59" (1/1) ... [2021-08-26 00:41:59,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5465d519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:59, skipping insertion in model container [2021-08-26 00:41:59,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:41:59" (1/1) ... [2021-08-26 00:41:59,769 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 00:41:59,778 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 00:41:59,891 WARN L228 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_float.c[434,447] [2021-08-26 00:41:59,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 00:41:59,912 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 00:41:59,922 WARN L228 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_float.c[434,447] [2021-08-26 00:41:59,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 00:41:59,937 INFO L208 MainTranslator]: Completed translation [2021-08-26 00:41:59,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:59 WrapperNode [2021-08-26 00:41:59,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 00:41:59,939 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 00:41:59,939 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 00:41:59,939 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 00:41:59,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:59" (1/1) ... [2021-08-26 00:41:59,957 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:59" (1/1) ... [2021-08-26 00:42:00,001 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 00:42:00,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 00:42:00,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 00:42:00,003 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 00:42:00,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:59" (1/1) ... [2021-08-26 00:42:00,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:59" (1/1) ... [2021-08-26 00:42:00,016 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:59" (1/1) ... [2021-08-26 00:42:00,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:59" (1/1) ... [2021-08-26 00:42:00,028 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:59" (1/1) ... [2021-08-26 00:42:00,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:59" (1/1) ... [2021-08-26 00:42:00,033 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:59" (1/1) ... [2021-08-26 00:42:00,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 00:42:00,036 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 00:42:00,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 00:42:00,037 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 00:42:00,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:59" (1/1) ... [2021-08-26 00:42:00,042 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 00:42:00,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 00:42:00,055 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) [2021-08-26 00:42:00,081 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 [2021-08-26 00:42:00,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-26 00:42:00,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 00:42:00,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 00:42:00,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 00:42:00,273 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 00:42:00,274 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-08-26 00:42:00,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:42:00 BoogieIcfgContainer [2021-08-26 00:42:00,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 00:42:00,277 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 00:42:00,277 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 00:42:00,279 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 00:42:00,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 12:41:59" (1/3) ... [2021-08-26 00:42:00,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d9503d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:42:00, skipping insertion in model container [2021-08-26 00:42:00,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:59" (2/3) ... [2021-08-26 00:42:00,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d9503d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:42:00, skipping insertion in model container [2021-08-26 00:42:00,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:42:00" (3/3) ... [2021-08-26 00:42:00,281 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_float.c [2021-08-26 00:42:00,284 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 00:42:00,284 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 00:42:00,344 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 00:42:00,350 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-08-26 00:42:00,350 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 00:42:00,360 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) [2021-08-26 00:42:00,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-26 00:42:00,362 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 00:42:00,362 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-26 00:42:00,363 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 00:42:00,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 00:42:00,367 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-08-26 00:42:00,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 00:42:00,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [255560422] [2021-08-26 00:42:00,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 00:42:00,374 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 00:42:00,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 00:42:00,409 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) [2021-08-26 00:42:00,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-26 00:42:00,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 00:42:00,536 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-26 00:42:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 00:42:00,609 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-08-26 00:42:00,613 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-26 00:42:00,616 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:42:00,632 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-08-26 00:42:00,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 00:42:00,835 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 00:42:00,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 12:42:00 BoogieIcfgContainer [2021-08-26 00:42:00,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 00:42:00,851 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 00:42:00,851 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 00:42:00,851 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 00:42:00,851 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:42:00" (3/4) ... [2021-08-26 00:42:00,853 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-26 00:42:00,873 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 00:42:00,874 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 00:42:00,879 INFO L168 Benchmark]: Toolchain (without parser) took 1115.57 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 25.8 MB in the beginning and 29.0 MB in the end (delta: -3.2 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2021-08-26 00:42:00,879 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 50.3 MB. Free memory was 32.4 MB in the beginning and 32.4 MB in the end (delta: 45.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:42:00,880 INFO L168 Benchmark]: CACSL2BoogieTranslator took 178.47 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 25.6 MB in the beginning and 37.7 MB in the end (delta: -12.1 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2021-08-26 00:42:00,881 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.82 ms. Allocated memory is still 60.8 MB. Free memory was 37.7 MB in the beginning and 44.2 MB in the end (delta: -6.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-08-26 00:42:00,881 INFO L168 Benchmark]: Boogie Preprocessor took 33.13 ms. Allocated memory is still 60.8 MB. Free memory was 44.2 MB in the beginning and 43.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:42:00,881 INFO L168 Benchmark]: RCFGBuilder took 238.70 ms. Allocated memory is still 60.8 MB. Free memory was 43.1 MB in the beginning and 32.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-26 00:42:00,883 INFO L168 Benchmark]: TraceAbstraction took 571.80 ms. Allocated memory is still 60.8 MB. Free memory was 31.7 MB in the beginning and 30.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. [2021-08-26 00:42:00,883 INFO L168 Benchmark]: Witness Printer took 22.68 ms. Allocated memory is still 60.8 MB. Free memory was 30.3 MB in the beginning and 29.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 00:42:00,887 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 50.3 MB. Free memory was 32.4 MB in the beginning and 32.4 MB in the end (delta: 45.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 178.47 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 25.6 MB in the beginning and 37.7 MB in the end (delta: -12.1 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 61.82 ms. Allocated memory is still 60.8 MB. Free memory was 37.7 MB in the beginning and 44.2 MB in the end (delta: -6.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.13 ms. Allocated memory is still 60.8 MB. Free memory was 44.2 MB in the beginning and 43.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 238.70 ms. Allocated memory is still 60.8 MB. Free memory was 43.1 MB in the beginning and 32.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 571.80 ms. Allocated memory is still 60.8 MB. Free memory was 31.7 MB in the beginning and 30.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. * Witness Printer took 22.68 ms. Allocated memory is still 60.8 MB. Free memory was 30.3 MB in the beginning and 29.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms 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] float x; [L13] x = __VERIFIER_nondet_float() [L8] COND TRUE !(cond) [L8] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 491.7ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 4.9ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms 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, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 11.8ms SsaConstructionTime, 17.6ms SatisfiabilityAnalysisTime, 0.0ms 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! [2021-08-26 00:42:00,915 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...