./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-esbmc-regression/fmin.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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/floats-esbmc-regression/fmin.i -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 0acd78e04ec97d9139bfbaa9a9f5a03e1ab29a7472c01915b0f188736c3b25ea --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 02:47:16,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 02:47:16,160 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 02:47:16,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 02:47:16,190 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 02:47:16,191 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 02:47:16,195 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 02:47:16,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 02:47:16,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 02:47:16,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 02:47:16,201 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 02:47:16,204 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 02:47:16,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 02:47:16,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 02:47:16,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 02:47:16,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 02:47:16,211 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 02:47:16,215 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 02:47:16,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 02:47:16,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 02:47:16,218 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 02:47:16,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 02:47:16,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 02:47:16,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 02:47:16,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 02:47:16,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 02:47:16,230 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 02:47:16,231 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 02:47:16,232 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 02:47:16,232 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 02:47:16,232 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 02:47:16,233 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 02:47:16,233 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 02:47:16,234 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 02:47:16,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 02:47:16,235 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 02:47:16,235 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 02:47:16,235 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 02:47:16,236 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 02:47:16,236 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 02:47:16,236 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 02:47:16,239 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 02:47:16,240 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 02:47:16,261 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 02:47:16,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 02:47:16,267 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 02:47:16,268 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 02:47:16,268 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 02:47:16,268 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 02:47:16,269 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 02:47:16,269 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 02:47:16,269 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 02:47:16,270 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 02:47:16,270 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 02:47:16,271 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 02:47:16,271 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 02:47:16,271 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 02:47:16,271 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 02:47:16,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 02:47:16,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 02:47:16,271 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 02:47:16,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 02:47:16,273 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 02:47:16,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 02:47:16,273 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 02:47:16,273 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 02:47:16,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 02:47:16,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:47:16,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 02:47:16,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 02:47:16,274 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 02:47:16,274 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 02:47:16,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 02:47:16,275 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 02:47:16,275 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 02:47:16,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 02:47:16,275 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0acd78e04ec97d9139bfbaa9a9f5a03e1ab29a7472c01915b0f188736c3b25ea [2022-07-12 02:47:16,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 02:47:16,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 02:47:16,514 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 02:47:16,515 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 02:47:16,516 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 02:47:16,517 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/fmin.i [2022-07-12 02:47:16,557 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8ac1209a/ec4567c1e9934be3b09ba71e5f98706a/FLAGee8b14886 [2022-07-12 02:47:16,948 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 02:47:16,948 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/fmin.i [2022-07-12 02:47:16,964 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8ac1209a/ec4567c1e9934be3b09ba71e5f98706a/FLAGee8b14886 [2022-07-12 02:47:17,303 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8ac1209a/ec4567c1e9934be3b09ba71e5f98706a [2022-07-12 02:47:17,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 02:47:17,306 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 02:47:17,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 02:47:17,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 02:47:17,310 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 02:47:17,310 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:47:17" (1/1) ... [2022-07-12 02:47:17,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63e8affd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:47:17, skipping insertion in model container [2022-07-12 02:47:17,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:47:17" (1/1) ... [2022-07-12 02:47:17,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 02:47:17,340 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 02:47:17,627 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/floats-esbmc-regression/fmin.i[36279,36292] [2022-07-12 02:47:17,632 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fmin at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherBinaryFloatOperation(IntegerTranslation.java:855) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleBinaryFloatFunction(StandardFunctionHandler.java:1800) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:235) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1447) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:177) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:675) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1454) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1397) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1470) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2361) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:601) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-12 02:47:17,637 INFO L158 Benchmark]: Toolchain (without parser) took 329.63ms. Allocated memory was 111.1MB in the beginning and 148.9MB in the end (delta: 37.7MB). Free memory was 80.9MB in the beginning and 121.6MB in the end (delta: -40.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 02:47:17,638 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 111.1MB. Free memory was 67.5MB in the beginning and 67.4MB in the end (delta: 45.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:47:17,639 INFO L158 Benchmark]: CACSL2BoogieTranslator took 327.87ms. Allocated memory was 111.1MB in the beginning and 148.9MB in the end (delta: 37.7MB). Free memory was 80.5MB in the beginning and 121.6MB in the end (delta: -41.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 02:47:17,640 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 111.1MB. Free memory was 67.5MB in the beginning and 67.4MB in the end (delta: 45.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 327.87ms. Allocated memory was 111.1MB in the beginning and 148.9MB in the end (delta: 37.7MB). Free memory was 80.5MB in the beginning and 121.6MB in the end (delta: -41.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fmin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fmin: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherBinaryFloatOperation(IntegerTranslation.java:855) RESULT: Ultimate could not prove your program: Toolchain returned no result. 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/floats-esbmc-regression/fmin.i -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 0acd78e04ec97d9139bfbaa9a9f5a03e1ab29a7472c01915b0f188736c3b25ea --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 02:47:19,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 02:47:19,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 02:47:19,260 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 02:47:19,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 02:47:19,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 02:47:19,264 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 02:47:19,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 02:47:19,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 02:47:19,279 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 02:47:19,280 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 02:47:19,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 02:47:19,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 02:47:19,284 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 02:47:19,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 02:47:19,287 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 02:47:19,289 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 02:47:19,289 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 02:47:19,291 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 02:47:19,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 02:47:19,294 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 02:47:19,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 02:47:19,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 02:47:19,298 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 02:47:19,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 02:47:19,303 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 02:47:19,306 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 02:47:19,306 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 02:47:19,307 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 02:47:19,307 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 02:47:19,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 02:47:19,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 02:47:19,310 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 02:47:19,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 02:47:19,311 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 02:47:19,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 02:47:19,312 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 02:47:19,313 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 02:47:19,313 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 02:47:19,313 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 02:47:19,314 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 02:47:19,315 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 02:47:19,319 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-12 02:47:19,342 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 02:47:19,343 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 02:47:19,343 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 02:47:19,343 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 02:47:19,344 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 02:47:19,344 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 02:47:19,345 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 02:47:19,346 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 02:47:19,346 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 02:47:19,347 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 02:47:19,347 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 02:47:19,347 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 02:47:19,347 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 02:47:19,347 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 02:47:19,347 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 02:47:19,348 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 02:47:19,348 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 02:47:19,348 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 02:47:19,348 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 02:47:19,348 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 02:47:19,349 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 02:47:19,349 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 02:47:19,349 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 02:47:19,349 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 02:47:19,349 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 02:47:19,349 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 02:47:19,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:47:19,350 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 02:47:19,350 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 02:47:19,350 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 02:47:19,350 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 02:47:19,351 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 02:47:19,351 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 02:47:19,351 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 02:47:19,351 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 02:47:19,351 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 02:47:19,352 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0acd78e04ec97d9139bfbaa9a9f5a03e1ab29a7472c01915b0f188736c3b25ea [2022-07-12 02:47:19,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 02:47:19,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 02:47:19,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 02:47:19,637 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 02:47:19,638 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 02:47:19,639 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/fmin.i [2022-07-12 02:47:19,687 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60efe858d/2c0db2b0c4aa4be2808ddcb66b66240f/FLAG318e20045 [2022-07-12 02:47:20,073 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 02:47:20,074 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/fmin.i [2022-07-12 02:47:20,087 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60efe858d/2c0db2b0c4aa4be2808ddcb66b66240f/FLAG318e20045 [2022-07-12 02:47:20,446 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60efe858d/2c0db2b0c4aa4be2808ddcb66b66240f [2022-07-12 02:47:20,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 02:47:20,450 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 02:47:20,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 02:47:20,452 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 02:47:20,455 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 02:47:20,456 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:47:20" (1/1) ... [2022-07-12 02:47:20,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fd541a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:47:20, skipping insertion in model container [2022-07-12 02:47:20,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:47:20" (1/1) ... [2022-07-12 02:47:20,463 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 02:47:20,518 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 02:47:20,930 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/floats-esbmc-regression/fmin.i[36279,36292] [2022-07-12 02:47:20,938 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:47:20,947 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 02:47:20,972 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/floats-esbmc-regression/fmin.i[36279,36292] [2022-07-12 02:47:20,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:47:21,068 INFO L208 MainTranslator]: Completed translation [2022-07-12 02:47:21,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:47:21 WrapperNode [2022-07-12 02:47:21,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 02:47:21,069 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 02:47:21,070 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 02:47:21,070 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 02:47:21,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:47:21" (1/1) ... [2022-07-12 02:47:21,101 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:47:21" (1/1) ... [2022-07-12 02:47:21,120 INFO L137 Inliner]: procedures = 448, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-07-12 02:47:21,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 02:47:21,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 02:47:21,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 02:47:21,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 02:47:21,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:47:21" (1/1) ... [2022-07-12 02:47:21,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:47:21" (1/1) ... [2022-07-12 02:47:21,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:47:21" (1/1) ... [2022-07-12 02:47:21,144 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:47:21" (1/1) ... [2022-07-12 02:47:21,152 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:47:21" (1/1) ... [2022-07-12 02:47:21,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:47:21" (1/1) ... [2022-07-12 02:47:21,154 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:47:21" (1/1) ... [2022-07-12 02:47:21,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 02:47:21,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 02:47:21,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 02:47:21,172 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 02:47:21,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:47:21" (1/1) ... [2022-07-12 02:47:21,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:47:21,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 02:47:21,209 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) [2022-07-12 02:47:21,226 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 [2022-07-12 02:47:21,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 02:47:21,251 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-12 02:47:21,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-12 02:47:21,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 02:47:21,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 02:47:21,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 02:47:21,309 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 02:47:21,311 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 02:47:21,361 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 02:47:21,365 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 02:47:21,365 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 02:47:21,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:47:21 BoogieIcfgContainer [2022-07-12 02:47:21,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 02:47:21,368 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 02:47:21,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 02:47:21,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 02:47:21,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:47:20" (1/3) ... [2022-07-12 02:47:21,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f5a8b6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:47:21, skipping insertion in model container [2022-07-12 02:47:21,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:47:21" (2/3) ... [2022-07-12 02:47:21,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f5a8b6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:47:21, skipping insertion in model container [2022-07-12 02:47:21,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:47:21" (3/3) ... [2022-07-12 02:47:21,371 INFO L111 eAbstractionObserver]: Analyzing ICFG fmin.i [2022-07-12 02:47:21,381 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 02:47:21,381 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 02:47:21,412 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 02:47:21,420 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@52879bfc, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@22f280c6 [2022-07-12 02:47:21,420 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 02:47:21,426 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-07-12 02:47:21,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-12 02:47:21,436 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:47:21,436 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-12 02:47:21,437 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:47:21,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:47:21,442 INFO L85 PathProgramCache]: Analyzing trace with hash 889986362, now seen corresponding path program 1 times [2022-07-12 02:47:21,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 02:47:21,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1854855236] [2022-07-12 02:47:21,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:47:21,450 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 02:47:21,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 02:47:21,452 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) [2022-07-12 02:47:21,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 02:47:21,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:47:21,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 02:47:21,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 02:47:21,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 02:47:21,682 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 02:47:21,682 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 02:47:21,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1854855236] [2022-07-12 02:47:21,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1854855236] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 02:47:21,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 02:47:21,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 02:47:21,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041342791] [2022-07-12 02:47:21,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 02:47:21,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 02:47:21,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 02:47:21,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 02:47:21,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 02:47:21,714 INFO L87 Difference]: Start difference. First operand has 15 states, 8 states have (on average 1.25) internal successors, (10), 9 states have internal predecessors, (10), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 02:47:21,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 02:47:21,818 INFO L93 Difference]: Finished difference Result 25 states and 34 transitions. [2022-07-12 02:47:21,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 02:47:21,821 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-07-12 02:47:21,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 02:47:21,825 INFO L225 Difference]: With dead ends: 25 [2022-07-12 02:47:21,826 INFO L226 Difference]: Without dead ends: 0 [2022-07-12 02:47:21,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 02:47:21,832 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 5 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 02:47:21,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 21 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 02:47:21,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-12 02:47:21,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-12 02:47:21,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-07-12 02:47:21,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-12 02:47:21,854 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2022-07-12 02:47:21,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 02:47:21,854 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-12 02:47:21,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-12 02:47:21,855 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-12 02:47:21,855 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-12 02:47:21,858 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 02:47:21,868 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-12 02:47:22,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 02:47:22,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-12 02:47:22,078 INFO L902 garLoopResultBuilder]: At program point L882-1(line 882) the Hoare annotation is: true [2022-07-12 02:47:22,078 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-12 02:47:22,079 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-12 02:47:22,079 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-12 02:47:22,079 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-12 02:47:22,080 INFO L899 garLoopResultBuilder]: For program point L885(lines 880 886) no Hoare annotation was computed. [2022-07-12 02:47:22,080 INFO L902 garLoopResultBuilder]: At program point L884(line 884) the Hoare annotation is: true [2022-07-12 02:47:22,080 INFO L902 garLoopResultBuilder]: At program point L883(line 883) the Hoare annotation is: true [2022-07-12 02:47:22,080 INFO L902 garLoopResultBuilder]: At program point L882(line 882) the Hoare annotation is: true [2022-07-12 02:47:22,081 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(line 878) the Hoare annotation is: true [2022-07-12 02:47:22,082 INFO L899 garLoopResultBuilder]: For program point L878(line 878) no Hoare annotation was computed. [2022-07-12 02:47:22,083 INFO L899 garLoopResultBuilder]: For program point L878-1(line 878) no Hoare annotation was computed. [2022-07-12 02:47:22,084 INFO L899 garLoopResultBuilder]: For program point L878-3(line 878) no Hoare annotation was computed. [2022-07-12 02:47:22,084 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(line 878) no Hoare annotation was computed. [2022-07-12 02:47:22,084 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 878) no Hoare annotation was computed. [2022-07-12 02:47:22,088 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-12 02:47:22,090 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 02:47:22,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 02:47:22 BoogieIcfgContainer [2022-07-12 02:47:22,093 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 02:47:22,094 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 02:47:22,094 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 02:47:22,094 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 02:47:22,095 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:47:21" (3/4) ... [2022-07-12 02:47:22,098 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-12 02:47:22,102 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-07-12 02:47:22,105 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-07-12 02:47:22,106 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-07-12 02:47:22,106 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-07-12 02:47:22,106 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-12 02:47:22,108 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-12 02:47:22,137 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-12 02:47:22,140 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 02:47:22,141 INFO L158 Benchmark]: Toolchain (without parser) took 1691.23ms. Allocated memory was 52.4MB in the beginning and 69.2MB in the end (delta: 16.8MB). Free memory was 28.3MB in the beginning and 36.4MB in the end (delta: -8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 02:47:22,143 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 52.4MB. Free memory was 33.3MB in the beginning and 33.3MB in the end (delta: 33.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:47:22,143 INFO L158 Benchmark]: CACSL2BoogieTranslator took 616.85ms. Allocated memory was 52.4MB in the beginning and 69.2MB in the end (delta: 16.8MB). Free memory was 28.1MB in the beginning and 36.8MB in the end (delta: -8.7MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2022-07-12 02:47:22,143 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.83ms. Allocated memory is still 69.2MB. Free memory was 36.8MB in the beginning and 34.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 02:47:22,144 INFO L158 Benchmark]: Boogie Preprocessor took 49.90ms. Allocated memory is still 69.2MB. Free memory was 34.1MB in the beginning and 33.1MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 02:47:22,145 INFO L158 Benchmark]: RCFGBuilder took 194.87ms. Allocated memory is still 69.2MB. Free memory was 32.9MB in the beginning and 45.7MB in the end (delta: -12.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 02:47:22,145 INFO L158 Benchmark]: TraceAbstraction took 726.02ms. Allocated memory is still 69.2MB. Free memory was 45.1MB in the beginning and 38.9MB in the end (delta: 6.2MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2022-07-12 02:47:22,145 INFO L158 Benchmark]: Witness Printer took 46.34ms. Allocated memory is still 69.2MB. Free memory was 38.9MB in the beginning and 36.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-12 02:47:22,151 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 52.4MB. Free memory was 33.3MB in the beginning and 33.3MB in the end (delta: 33.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 616.85ms. Allocated memory was 52.4MB in the beginning and 69.2MB in the end (delta: 16.8MB). Free memory was 28.1MB in the beginning and 36.8MB in the end (delta: -8.7MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.83ms. Allocated memory is still 69.2MB. Free memory was 36.8MB in the beginning and 34.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.90ms. Allocated memory is still 69.2MB. Free memory was 34.1MB in the beginning and 33.1MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 194.87ms. Allocated memory is still 69.2MB. Free memory was 32.9MB in the beginning and 45.7MB in the end (delta: -12.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * TraceAbstraction took 726.02ms. Allocated memory is still 69.2MB. Free memory was 45.1MB in the beginning and 38.9MB in the end (delta: 6.2MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Witness Printer took 46.34ms. Allocated memory is still 69.2MB. Free memory was 38.9MB in the beginning and 36.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. 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 - PositiveResult [Line: 878]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 9 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 11 PreInvPairs, 14 NumberOfFragments, 5 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 2 NumberOfNonLiveVariables, 27 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-07-12 02:47:22,212 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 Result: TRUE