./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-esbmc-regression/islessequal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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/islessequal.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 744af57edc99b4b773c19eb496219aa238fc351f7efa0e308f2659a2671db726 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 14:09:12,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 14:09:12,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 14:09:13,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 14:09:13,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 14:09:13,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 14:09:13,016 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 14:09:13,020 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 14:09:13,022 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 14:09:13,027 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 14:09:13,028 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 14:09:13,030 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 14:09:13,030 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 14:09:13,032 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 14:09:13,033 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 14:09:13,034 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 14:09:13,035 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 14:09:13,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 14:09:13,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 14:09:13,040 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 14:09:13,041 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 14:09:13,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 14:09:13,043 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 14:09:13,044 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 14:09:13,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 14:09:13,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 14:09:13,054 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 14:09:13,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 14:09:13,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 14:09:13,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 14:09:13,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 14:09:13,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 14:09:13,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 14:09:13,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 14:09:13,061 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 14:09:13,062 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 14:09:13,062 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 14:09:13,063 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 14:09:13,063 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 14:09:13,063 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 14:09:13,064 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 14:09:13,066 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 14:09:13,067 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 14:09:13,089 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 14:09:13,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 14:09:13,090 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 14:09:13,090 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 14:09:13,091 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 14:09:13,091 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 14:09:13,094 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 14:09:13,094 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 14:09:13,094 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 14:09:13,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 14:09:13,095 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 14:09:13,095 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 14:09:13,095 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 14:09:13,096 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 14:09:13,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 14:09:13,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 14:09:13,096 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 14:09:13,097 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 14:09:13,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 14:09:13,097 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 14:09:13,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 14:09:13,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 14:09:13,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 14:09:13,099 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 14:09:13,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 14:09:13,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 14:09:13,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 14:09:13,100 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 14:09:13,100 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 14:09:13,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 14:09:13,101 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 14:09:13,108 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 14:09:13,108 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 14:09:13,109 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 744af57edc99b4b773c19eb496219aa238fc351f7efa0e308f2659a2671db726 [2022-07-22 14:09:13,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 14:09:13,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 14:09:13,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 14:09:13,410 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 14:09:13,410 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 14:09:13,411 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/islessequal.i [2022-07-22 14:09:13,474 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f8c516ad/bb5a9ebb266e4d8ea99be657f031fa14/FLAGcdfbc9795 [2022-07-22 14:09:13,968 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 14:09:13,969 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/islessequal.i [2022-07-22 14:09:13,990 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f8c516ad/bb5a9ebb266e4d8ea99be657f031fa14/FLAGcdfbc9795 [2022-07-22 14:09:14,496 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f8c516ad/bb5a9ebb266e4d8ea99be657f031fa14 [2022-07-22 14:09:14,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 14:09:14,501 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 14:09:14,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 14:09:14,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 14:09:14,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 14:09:14,507 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:09:14" (1/1) ... [2022-07-22 14:09:14,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@115e67da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:09:14, skipping insertion in model container [2022-07-22 14:09:14,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:09:14" (1/1) ... [2022-07-22 14:09:14,513 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 14:09:14,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 14:09:14,893 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/islessequal.i[36286,36299] [2022-07-22 14:09:14,911 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:837) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleNaNOrInfinity(StandardFunctionHandler.java:1784) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.lambda$52(StandardFunctionHandler.java:417) 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:2412) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) 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.standardfunctions.StandardFunctionHandler.handleFloatBuiltinBinaryComparison(StandardFunctionHandler.java:1851) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.lambda$58(StandardFunctionHandler.java:426) 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:2412) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) 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) [2022-07-22 14:09:14,918 INFO L158 Benchmark]: Toolchain (without parser) took 416.35ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 47.6MB in the beginning and 95.3MB in the end (delta: -47.7MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2022-07-22 14:09:14,920 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 86.0MB. Free memory is still 65.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 14:09:14,922 INFO L158 Benchmark]: CACSL2BoogieTranslator took 412.96ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 47.4MB in the beginning and 95.3MB in the end (delta: -47.9MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2022-07-22 14:09:14,923 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 86.0MB. Free memory is still 65.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 412.96ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 47.4MB in the beginning and 95.3MB in the end (delta: -47.9MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: createNanOrInfinity is unsupported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.createNanOrInfinity(IntegerTranslation.java:837) 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/islessequal.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 744af57edc99b4b773c19eb496219aa238fc351f7efa0e308f2659a2671db726 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 14:09:16,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 14:09:16,719 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 14:09:16,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 14:09:16,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 14:09:16,763 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 14:09:16,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 14:09:16,765 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 14:09:16,767 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 14:09:16,768 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 14:09:16,769 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 14:09:16,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 14:09:16,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 14:09:16,771 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 14:09:16,772 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 14:09:16,773 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 14:09:16,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 14:09:16,778 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 14:09:16,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 14:09:16,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 14:09:16,788 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 14:09:16,792 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 14:09:16,793 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 14:09:16,795 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 14:09:16,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 14:09:16,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 14:09:16,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 14:09:16,801 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 14:09:16,802 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 14:09:16,802 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 14:09:16,803 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 14:09:16,803 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 14:09:16,807 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 14:09:16,808 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 14:09:16,808 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 14:09:16,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 14:09:16,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 14:09:16,811 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 14:09:16,811 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 14:09:16,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 14:09:16,812 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 14:09:16,813 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 14:09:16,815 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-22 14:09:16,847 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 14:09:16,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 14:09:16,848 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 14:09:16,849 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 14:09:16,849 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 14:09:16,849 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 14:09:16,850 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 14:09:16,850 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 14:09:16,851 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 14:09:16,851 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 14:09:16,852 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 14:09:16,852 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 14:09:16,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 14:09:16,852 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 14:09:16,852 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 14:09:16,852 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 14:09:16,853 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-22 14:09:16,853 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-22 14:09:16,853 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-22 14:09:16,853 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 14:09:16,853 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 14:09:16,854 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 14:09:16,854 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 14:09:16,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 14:09:16,854 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 14:09:16,854 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 14:09:16,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 14:09:16,855 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 14:09:16,855 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 14:09:16,855 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 14:09:16,855 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-22 14:09:16,856 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-22 14:09:16,856 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 14:09:16,856 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 14:09:16,856 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 14:09:16,857 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-22 14:09:16,857 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 744af57edc99b4b773c19eb496219aa238fc351f7efa0e308f2659a2671db726 [2022-07-22 14:09:17,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 14:09:17,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 14:09:17,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 14:09:17,187 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 14:09:17,188 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 14:09:17,190 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/islessequal.i [2022-07-22 14:09:17,256 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d44b74ad2/3a969da9572d4950bb9b8230ef315d05/FLAGc4f1982a2 [2022-07-22 14:09:17,824 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 14:09:17,824 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/islessequal.i [2022-07-22 14:09:17,838 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d44b74ad2/3a969da9572d4950bb9b8230ef315d05/FLAGc4f1982a2 [2022-07-22 14:09:18,105 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d44b74ad2/3a969da9572d4950bb9b8230ef315d05 [2022-07-22 14:09:18,108 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 14:09:18,109 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 14:09:18,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 14:09:18,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 14:09:18,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 14:09:18,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:09:18" (1/1) ... [2022-07-22 14:09:18,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33ea4e87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:09:18, skipping insertion in model container [2022-07-22 14:09:18,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:09:18" (1/1) ... [2022-07-22 14:09:18,122 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 14:09:18,162 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 14:09:18,586 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/islessequal.i[36286,36299] [2022-07-22 14:09:18,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 14:09:18,604 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 14:09:18,633 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/islessequal.i[36286,36299] [2022-07-22 14:09:18,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 14:09:18,735 INFO L208 MainTranslator]: Completed translation [2022-07-22 14:09:18,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:09:18 WrapperNode [2022-07-22 14:09:18,736 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 14:09:18,737 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 14:09:18,737 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 14:09:18,738 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 14:09:18,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:09:18" (1/1) ... [2022-07-22 14:09:18,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:09:18" (1/1) ... [2022-07-22 14:09:18,784 INFO L137 Inliner]: procedures = 448, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2022-07-22 14:09:18,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 14:09:18,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 14:09:18,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 14:09:18,786 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 14:09:18,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:09:18" (1/1) ... [2022-07-22 14:09:18,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:09:18" (1/1) ... [2022-07-22 14:09:18,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:09:18" (1/1) ... [2022-07-22 14:09:18,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:09:18" (1/1) ... [2022-07-22 14:09:18,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:09:18" (1/1) ... [2022-07-22 14:09:18,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:09:18" (1/1) ... [2022-07-22 14:09:18,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:09:18" (1/1) ... [2022-07-22 14:09:18,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 14:09:18,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 14:09:18,820 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 14:09:18,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 14:09:18,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:09:18" (1/1) ... [2022-07-22 14:09:18,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 14:09:18,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 14:09:18,847 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) [2022-07-22 14:09:18,857 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 [2022-07-22 14:09:18,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-22 14:09:18,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-22 14:09:18,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-22 14:09:18,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 14:09:18,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 14:09:18,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 14:09:18,954 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 14:09:18,956 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 14:09:19,046 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 14:09:19,053 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 14:09:19,053 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 14:09:19,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:09:19 BoogieIcfgContainer [2022-07-22 14:09:19,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 14:09:19,056 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 14:09:19,056 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 14:09:19,059 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 14:09:19,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 02:09:18" (1/3) ... [2022-07-22 14:09:19,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ba75db7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:09:19, skipping insertion in model container [2022-07-22 14:09:19,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:09:18" (2/3) ... [2022-07-22 14:09:19,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ba75db7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 02:09:19, skipping insertion in model container [2022-07-22 14:09:19,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:09:19" (3/3) ... [2022-07-22 14:09:19,061 INFO L111 eAbstractionObserver]: Analyzing ICFG islessequal.i [2022-07-22 14:09:19,074 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 14:09:19,075 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 14:09:19,127 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 14:09:19,136 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@8bf1af9, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4e5f6c6f [2022-07-22 14:09:19,137 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 14:09:19,141 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-07-22 14:09:19,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-22 14:09:19,155 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 14:09:19,155 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-22 14:09:19,157 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 14:09:19,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 14:09:19,164 INFO L85 PathProgramCache]: Analyzing trace with hash 890047930, now seen corresponding path program 1 times [2022-07-22 14:09:19,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 14:09:19,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1029315683] [2022-07-22 14:09:19,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 14:09:19,176 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 14:09:19,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 14:09:19,179 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) [2022-07-22 14:09:19,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-22 14:09:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 14:09:19,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 14:09:19,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 14:09:19,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 14:09:19,405 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 14:09:19,406 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 14:09:19,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1029315683] [2022-07-22 14:09:19,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1029315683] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 14:09:19,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 14:09:19,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 14:09:19,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107684259] [2022-07-22 14:09:19,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 14:09:19,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 14:09:19,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 14:09:19,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 14:09:19,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 14:09:19,443 INFO L87 Difference]: Start difference. First operand has 17 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) 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) [2022-07-22 14:09:19,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 14:09:19,519 INFO L93 Difference]: Finished difference Result 29 states and 41 transitions. [2022-07-22 14:09:19,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 14:09:19,521 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 [2022-07-22 14:09:19,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 14:09:19,526 INFO L225 Difference]: With dead ends: 29 [2022-07-22 14:09:19,526 INFO L226 Difference]: Without dead ends: 0 [2022-07-22 14:09:19,528 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 [2022-07-22 14:09:19,531 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 5 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 14:09:19,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 26 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 14:09:19,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-22 14:09:19,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-22 14:09:19,555 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) [2022-07-22 14:09:19,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-22 14:09:19,556 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2022-07-22 14:09:19,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 14:09:19,557 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 14:09:19,557 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) [2022-07-22 14:09:19,557 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-22 14:09:19,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-22 14:09:19,559 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-22 14:09:19,567 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-22 14:09:19,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 14:09:19,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-22 14:09:19,775 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-22 14:09:19,776 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-22 14:09:19,776 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-22 14:09:19,776 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-22 14:09:19,777 INFO L902 garLoopResultBuilder]: At program point L888(lines 880 889) the Hoare annotation is: true [2022-07-22 14:09:19,777 INFO L899 garLoopResultBuilder]: For program point L886(line 886) no Hoare annotation was computed. [2022-07-22 14:09:19,777 INFO L902 garLoopResultBuilder]: At program point L885(line 885) the Hoare annotation is: true [2022-07-22 14:09:19,777 INFO L902 garLoopResultBuilder]: At program point L884(line 884) the Hoare annotation is: true [2022-07-22 14:09:19,777 INFO L902 garLoopResultBuilder]: At program point L883(line 883) the Hoare annotation is: true [2022-07-22 14:09:19,777 INFO L902 garLoopResultBuilder]: At program point L882(line 882) the Hoare annotation is: true [2022-07-22 14:09:19,778 INFO L902 garLoopResultBuilder]: At program point L882-1(line 882) the Hoare annotation is: true [2022-07-22 14:09:19,778 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(line 878) the Hoare annotation is: true [2022-07-22 14:09:19,778 INFO L899 garLoopResultBuilder]: For program point L878(line 878) no Hoare annotation was computed. [2022-07-22 14:09:19,778 INFO L899 garLoopResultBuilder]: For program point L878-1(line 878) no Hoare annotation was computed. [2022-07-22 14:09:19,778 INFO L899 garLoopResultBuilder]: For program point L878-3(line 878) no Hoare annotation was computed. [2022-07-22 14:09:19,779 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(line 878) no Hoare annotation was computed. [2022-07-22 14:09:19,779 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 878) no Hoare annotation was computed. [2022-07-22 14:09:19,781 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-22 14:09:19,784 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-22 14:09:19,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.07 02:09:19 BoogieIcfgContainer [2022-07-22 14:09:19,789 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-22 14:09:19,790 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 14:09:19,790 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 14:09:19,790 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 14:09:19,791 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:09:19" (3/4) ... [2022-07-22 14:09:19,793 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-22 14:09:19,799 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-07-22 14:09:19,802 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-22 14:09:19,802 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-07-22 14:09:19,802 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-22 14:09:19,802 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-22 14:09:19,835 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 14:09:19,835 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 14:09:19,836 INFO L158 Benchmark]: Toolchain (without parser) took 1726.37ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 30.5MB in the beginning and 41.3MB in the end (delta: -10.8MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. [2022-07-22 14:09:19,836 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 54.5MB. Free memory was 37.0MB in the beginning and 37.0MB in the end (delta: 44.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 14:09:19,837 INFO L158 Benchmark]: CACSL2BoogieTranslator took 625.15ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 30.3MB in the beginning and 34.7MB in the end (delta: -4.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-22 14:09:19,837 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.03ms. Allocated memory is still 67.1MB. Free memory was 34.7MB in the beginning and 32.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 14:09:19,837 INFO L158 Benchmark]: Boogie Preprocessor took 34.18ms. Allocated memory is still 67.1MB. Free memory was 32.4MB in the beginning and 31.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 14:09:19,838 INFO L158 Benchmark]: RCFGBuilder took 234.61ms. Allocated memory is still 67.1MB. Free memory was 31.1MB in the beginning and 43.9MB in the end (delta: -12.8MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2022-07-22 14:09:19,838 INFO L158 Benchmark]: TraceAbstraction took 733.35ms. Allocated memory is still 67.1MB. Free memory was 43.5MB in the beginning and 43.4MB in the end (delta: 77.6kB). Peak memory consumption was 867.4kB. Max. memory is 16.1GB. [2022-07-22 14:09:19,838 INFO L158 Benchmark]: Witness Printer took 45.06ms. Allocated memory is still 67.1MB. Free memory was 43.4MB in the beginning and 41.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 14:09:19,841 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 54.5MB. Free memory was 37.0MB in the beginning and 37.0MB in the end (delta: 44.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 625.15ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 30.3MB in the beginning and 34.7MB in the end (delta: -4.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.03ms. Allocated memory is still 67.1MB. Free memory was 34.7MB in the beginning and 32.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.18ms. Allocated memory is still 67.1MB. Free memory was 32.4MB in the beginning and 31.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 234.61ms. Allocated memory is still 67.1MB. Free memory was 31.1MB in the beginning and 43.9MB in the end (delta: -12.8MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. * TraceAbstraction took 733.35ms. Allocated memory is still 67.1MB. Free memory was 43.5MB in the beginning and 43.4MB in the end (delta: 77.6kB). Peak memory consumption was 867.4kB. Max. memory is 16.1GB. * Witness Printer took 45.06ms. Allocated memory is still 67.1MB. Free memory was 43.4MB in the beginning and 41.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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, 17 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, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 11 mSDtfsCounter, 17 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=17occurred 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, 7 LocationsWithAnnotation, 15 PreInvPairs, 20 NumberOfFragments, 7 HoareAnnotationTreeSize, 15 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 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, 20 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 - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-07-22 14:09:19,884 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE