./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-esbmc-regression/fmax.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ee8e70e7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-esbmc-regression/fmax.i -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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 f24602a0caa1d47ea4587be7b2b610ea917e2304 ................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-esbmc-regression/fmax.i -s /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-2/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 f24602a0caa1d47ea4587be7b2b610ea917e2304 ..................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-ee8e70e [2020-10-24 15:00:24,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 15:00:24,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 15:00:24,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 15:00:24,843 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 15:00:24,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 15:00:24,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 15:00:24,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 15:00:24,851 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 15:00:24,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 15:00:24,854 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 15:00:24,856 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 15:00:24,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 15:00:24,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 15:00:24,860 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 15:00:24,862 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 15:00:24,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 15:00:24,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 15:00:24,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 15:00:24,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 15:00:24,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 15:00:24,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 15:00:24,880 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 15:00:24,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 15:00:24,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 15:00:24,894 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 15:00:24,896 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 15:00:24,898 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 15:00:24,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 15:00:24,902 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 15:00:24,904 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 15:00:24,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 15:00:24,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 15:00:24,912 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 15:00:24,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 15:00:24,918 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 15:00:24,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 15:00:24,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 15:00:24,923 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 15:00:24,936 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 15:00:24,938 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 15:00:24,943 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 15:00:24,979 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 15:00:24,980 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 15:00:24,982 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 15:00:24,982 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 15:00:24,982 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 15:00:24,983 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 15:00:24,983 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 15:00:24,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 15:00:24,983 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 15:00:24,984 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 15:00:24,984 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 15:00:24,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 15:00:24,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 15:00:24,985 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 15:00:24,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 15:00:24,985 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 15:00:24,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 15:00:24,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 15:00:24,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 15:00:24,986 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 15:00:24,986 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 15:00:24,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 15:00:24,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 15:00:24,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 15:00:24,988 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 15:00:24,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 15:00:24,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 15:00:24,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 15:00:24,988 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 15:00:24,989 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f24602a0caa1d47ea4587be7b2b610ea917e2304 [2020-10-24 15:00:25,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 15:00:25,479 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 15:00:25,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 15:00:25,485 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 15:00:25,487 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 15:00:25,488 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/fmax.i [2020-10-24 15:00:25,561 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/021a523ec/f516d2216b2342a8ad526492039cf7fc/FLAGd9ce37f9e [2020-10-24 15:00:26,281 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 15:00:26,282 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/fmax.i [2020-10-24 15:00:26,300 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/021a523ec/f516d2216b2342a8ad526492039cf7fc/FLAGd9ce37f9e [2020-10-24 15:00:26,569 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/021a523ec/f516d2216b2342a8ad526492039cf7fc [2020-10-24 15:00:26,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 15:00:26,599 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 15:00:26,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 15:00:26,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 15:00:26,610 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 15:00:26,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:00:26" (1/1) ... [2020-10-24 15:00:26,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8412b7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:26, skipping insertion in model container [2020-10-24 15:00:26,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:00:26" (1/1) ... [2020-10-24 15:00:26,639 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 15:00:26,722 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 15:00:27,384 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: fmax at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherBinaryFloatOperation(IntegerTranslation.java:854) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleBinaryFloatFunction(StandardFunctionHandler.java:1700) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:217) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1400) 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:704) 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:174) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:676) 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:1407) 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:1351) 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:1044) 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:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1422) 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:3209) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2291) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:578) 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:201) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:94) 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) [2020-10-24 15:00:27,406 INFO L168 Benchmark]: Toolchain (without parser) took 823.20 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 29.6 MB in the beginning and 39.9 MB in the end (delta: -10.3 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. [2020-10-24 15:00:27,408 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 44.0 MB. Free memory was 25.0 MB in the beginning and 24.9 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:00:27,413 INFO L168 Benchmark]: CACSL2BoogieTranslator took 798.24 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 28.9 MB in the beginning and 39.9 MB in the end (delta: -11.0 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. [2020-10-24 15:00:27,418 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 44.0 MB. Free memory was 25.0 MB in the beginning and 24.9 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 798.24 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 28.9 MB in the beginning and 39.9 MB in the end (delta: -11.0 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fmax de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fmax: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherBinaryFloatOperation(IntegerTranslation.java:854) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-ee8e70e [2020-10-24 15:00:30,084 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 15:00:30,087 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 15:00:30,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 15:00:30,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 15:00:30,130 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 15:00:30,132 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 15:00:30,135 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 15:00:30,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 15:00:30,139 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 15:00:30,140 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 15:00:30,142 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 15:00:30,142 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 15:00:30,144 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 15:00:30,145 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 15:00:30,147 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 15:00:30,148 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 15:00:30,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 15:00:30,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 15:00:30,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 15:00:30,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 15:00:30,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 15:00:30,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 15:00:30,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 15:00:30,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 15:00:30,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 15:00:30,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 15:00:30,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 15:00:30,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 15:00:30,180 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 15:00:30,181 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 15:00:30,182 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 15:00:30,187 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 15:00:30,189 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 15:00:30,192 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 15:00:30,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 15:00:30,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 15:00:30,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 15:00:30,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 15:00:30,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 15:00:30,204 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 15:00:30,207 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 15:00:30,266 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 15:00:30,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 15:00:30,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 15:00:30,273 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 15:00:30,273 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 15:00:30,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 15:00:30,274 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 15:00:30,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 15:00:30,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 15:00:30,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 15:00:30,276 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 15:00:30,277 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 15:00:30,277 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 15:00:30,277 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 15:00:30,277 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 15:00:30,278 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 15:00:30,278 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 15:00:30,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 15:00:30,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 15:00:30,279 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 15:00:30,279 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 15:00:30,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 15:00:30,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 15:00:30,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 15:00:30,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 15:00:30,280 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 15:00:30,280 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 15:00:30,281 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 15:00:30,281 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 15:00:30,281 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 15:00:30,281 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 15:00:30,282 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-2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f24602a0caa1d47ea4587be7b2b610ea917e2304 [2020-10-24 15:00:30,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 15:00:30,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 15:00:30,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 15:00:30,783 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 15:00:30,784 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 15:00:30,786 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/fmax.i [2020-10-24 15:00:30,896 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9839eb3d1/f8120d54804c4c13aabab25dc8caade3/FLAG447dea419 [2020-10-24 15:00:31,741 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 15:00:31,742 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/fmax.i [2020-10-24 15:00:31,757 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9839eb3d1/f8120d54804c4c13aabab25dc8caade3/FLAG447dea419 [2020-10-24 15:00:31,972 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9839eb3d1/f8120d54804c4c13aabab25dc8caade3 [2020-10-24 15:00:31,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 15:00:31,984 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 15:00:31,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 15:00:31,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 15:00:31,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 15:00:31,991 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:00:31" (1/1) ... [2020-10-24 15:00:31,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@105f2754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:31, skipping insertion in model container [2020-10-24 15:00:31,995 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:00:31" (1/1) ... [2020-10-24 15:00:32,004 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 15:00:32,112 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-10-24 15:00:32,721 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:00:32,741 INFO L212 MainTranslator]: Completed pre-run [2020-10-24 15:00:32,816 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-10-24 15:00:33,139 INFO L217 MainTranslator]: Completed translation [2020-10-24 15:00:33,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:33 WrapperNode [2020-10-24 15:00:33,140 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 15:00:33,141 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 15:00:33,141 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 15:00:33,141 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 15:00:33,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:33" (1/1) ... [2020-10-24 15:00:33,175 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:33" (1/1) ... [2020-10-24 15:00:33,203 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 15:00:33,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 15:00:33,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 15:00:33,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 15:00:33,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:33" (1/1) ... [2020-10-24 15:00:33,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:33" (1/1) ... [2020-10-24 15:00:33,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:33" (1/1) ... [2020-10-24 15:00:33,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:33" (1/1) ... [2020-10-24 15:00:33,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:33" (1/1) ... [2020-10-24 15:00:33,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:33" (1/1) ... [2020-10-24 15:00:33,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:33" (1/1) ... [2020-10-24 15:00:33,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 15:00:33,238 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 15:00:33,238 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 15:00:33,238 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 15:00:33,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:33" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 15:00:33,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-10-24 15:00:33,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_FLOAT [2020-10-24 15:00:33,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 15:00:33,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 15:00:33,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 15:00:33,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 15:00:33,674 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 15:00:33,675 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-24 15:00:33,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:00:33 BoogieIcfgContainer [2020-10-24 15:00:33,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 15:00:33,682 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 15:00:33,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 15:00:33,692 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 15:00:33,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:00:31" (1/3) ... [2020-10-24 15:00:33,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d65c1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:00:33, skipping insertion in model container [2020-10-24 15:00:33,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:00:33" (2/3) ... [2020-10-24 15:00:33,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d65c1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:00:33, skipping insertion in model container [2020-10-24 15:00:33,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:00:33" (3/3) ... [2020-10-24 15:00:33,702 INFO L111 eAbstractionObserver]: Analyzing ICFG fmax.i [2020-10-24 15:00:33,734 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 15:00:33,749 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-10-24 15:00:33,784 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-24 15:00:33,856 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 15:00:33,856 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 15:00:33,856 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 15:00:33,856 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 15:00:33,857 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 15:00:33,857 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 15:00:33,857 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 15:00:33,859 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 15:00:33,887 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-10-24 15:00:33,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-24 15:00:33,896 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 15:00:33,897 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-24 15:00:33,899 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 15:00:33,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 15:00:33,910 INFO L82 PathProgramCache]: Analyzing trace with hash 889506790, now seen corresponding path program 1 times [2020-10-24 15:00:33,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 15:00:33,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [485262530] [2020-10-24 15:00:33,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-24 15:00:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 15:00:34,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-24 15:00:34,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 15:00:34,089 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 15:00:34,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 15:00:34,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 15:00:34,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 15:00:34,156 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [485262530] [2020-10-24 15:00:34,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 15:00:34,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-24 15:00:34,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774035149] [2020-10-24 15:00:34,164 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-24 15:00:34,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 15:00:34,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-24 15:00:34,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 15:00:34,184 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 4 states. [2020-10-24 15:00:34,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 15:00:34,302 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2020-10-24 15:00:34,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 15:00:34,305 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-10-24 15:00:34,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 15:00:34,313 INFO L225 Difference]: With dead ends: 41 [2020-10-24 15:00:34,313 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 15:00:34,317 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-24 15:00:34,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 15:00:34,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 15:00:34,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 15:00:34,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 15:00:34,346 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2020-10-24 15:00:34,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 15:00:34,346 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 15:00:34,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-24 15:00:34,346 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 15:00:34,347 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 15:00:34,561 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 15:00:34,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 15:00:34,635 INFO L274 CegarLoopResult]: For program point L877-12(line 877) no Hoare annotation was computed. [2020-10-24 15:00:34,636 INFO L274 CegarLoopResult]: For program point L877-14(line 877) no Hoare annotation was computed. [2020-10-24 15:00:34,636 INFO L274 CegarLoopResult]: For program point L877-15(line 877) no Hoare annotation was computed. [2020-10-24 15:00:34,636 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 877) no Hoare annotation was computed. [2020-10-24 15:00:34,636 INFO L274 CegarLoopResult]: For program point L878(line 878) no Hoare annotation was computed. [2020-10-24 15:00:34,636 INFO L274 CegarLoopResult]: For program point L878-1(line 878) no Hoare annotation was computed. [2020-10-24 15:00:34,640 INFO L270 CegarLoopResult]: At program point L878-3(line 878) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2020-10-24 15:00:34,640 INFO L274 CegarLoopResult]: For program point L878-4(line 878) no Hoare annotation was computed. [2020-10-24 15:00:34,640 INFO L274 CegarLoopResult]: For program point L878-5(line 878) no Hoare annotation was computed. [2020-10-24 15:00:34,641 INFO L270 CegarLoopResult]: At program point L878-7(line 878) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2020-10-24 15:00:34,642 INFO L274 CegarLoopResult]: For program point L878-8(line 878) no Hoare annotation was computed. [2020-10-24 15:00:34,642 INFO L274 CegarLoopResult]: For program point L878-9(line 878) no Hoare annotation was computed. [2020-10-24 15:00:34,642 INFO L270 CegarLoopResult]: At program point L878-11(line 878) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2020-10-24 15:00:34,643 INFO L274 CegarLoopResult]: For program point L878-12(line 878) no Hoare annotation was computed. [2020-10-24 15:00:34,643 INFO L274 CegarLoopResult]: For program point L878-13(line 878) no Hoare annotation was computed. [2020-10-24 15:00:34,643 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 15:00:34,644 INFO L270 CegarLoopResult]: At program point L878-15(lines 1 886) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2020-10-24 15:00:34,645 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 15:00:34,645 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 15:00:34,646 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 877) no Hoare annotation was computed. [2020-10-24 15:00:34,646 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 15:00:34,647 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 877) no Hoare annotation was computed. [2020-10-24 15:00:34,648 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 877) no Hoare annotation was computed. [2020-10-24 15:00:34,648 INFO L274 CegarLoopResult]: For program point L877(line 877) no Hoare annotation was computed. [2020-10-24 15:00:34,648 INFO L274 CegarLoopResult]: For program point L877-2(line 877) no Hoare annotation was computed. [2020-10-24 15:00:34,648 INFO L274 CegarLoopResult]: For program point L877-3(line 877) no Hoare annotation was computed. [2020-10-24 15:00:34,649 INFO L274 CegarLoopResult]: For program point L877-4(line 877) no Hoare annotation was computed. [2020-10-24 15:00:34,649 INFO L274 CegarLoopResult]: For program point L877-6(line 877) no Hoare annotation was computed. [2020-10-24 15:00:34,649 INFO L274 CegarLoopResult]: For program point L877-7(line 877) no Hoare annotation was computed. [2020-10-24 15:00:34,649 INFO L274 CegarLoopResult]: For program point L877-8(line 877) no Hoare annotation was computed. [2020-10-24 15:00:34,649 INFO L274 CegarLoopResult]: For program point L877-10(line 877) no Hoare annotation was computed. [2020-10-24 15:00:34,650 INFO L274 CegarLoopResult]: For program point L877-11(line 877) no Hoare annotation was computed. [2020-10-24 15:00:34,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 03:00:34 BoogieIcfgContainer [2020-10-24 15:00:34,688 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 15:00:34,693 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 15:00:34,693 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 15:00:34,693 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 15:00:34,694 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:00:33" (3/4) ... [2020-10-24 15:00:34,699 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 15:00:34,718 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-10-24 15:00:34,718 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-10-24 15:00:34,719 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-24 15:00:34,720 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 15:00:34,721 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 15:00:34,783 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 15:00:34,784 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 15:00:34,787 INFO L168 Benchmark]: Toolchain (without parser) took 2807.34 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 24.0 MB in the beginning and 18.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 17.5 MB. Max. memory is 16.1 GB. [2020-10-24 15:00:34,788 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 39.8 MB. Free memory was 17.7 MB in the beginning and 17.6 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:00:34,789 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1154.12 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 23.3 MB in the beginning and 19.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 22.1 MB. Max. memory is 16.1 GB. [2020-10-24 15:00:34,790 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.22 ms. Allocated memory is still 58.7 MB. Free memory was 19.4 MB in the beginning and 16.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 15:00:34,791 INFO L168 Benchmark]: Boogie Preprocessor took 33.03 ms. Allocated memory is still 58.7 MB. Free memory was 16.8 MB in the beginning and 15.4 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 15:00:34,791 INFO L168 Benchmark]: RCFGBuilder took 443.01 ms. Allocated memory is still 58.7 MB. Free memory was 15.4 MB in the beginning and 25.1 MB in the end (delta: -9.8 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. [2020-10-24 15:00:34,792 INFO L168 Benchmark]: TraceAbstraction took 1007.51 ms. Allocated memory is still 58.7 MB. Free memory was 24.6 MB in the beginning and 21.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 1.4 MB. Max. memory is 16.1 GB. [2020-10-24 15:00:34,793 INFO L168 Benchmark]: Witness Printer took 91.46 ms. Allocated memory is still 58.7 MB. Free memory was 21.8 MB in the beginning and 18.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 15:00:34,797 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 39.8 MB. Free memory was 17.7 MB in the beginning and 17.6 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1154.12 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 23.3 MB in the beginning and 19.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 22.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.22 ms. Allocated memory is still 58.7 MB. Free memory was 19.4 MB in the beginning and 16.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.03 ms. Allocated memory is still 58.7 MB. Free memory was 16.8 MB in the beginning and 15.4 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 443.01 ms. Allocated memory is still 58.7 MB. Free memory was 15.4 MB in the beginning and 25.1 MB in the end (delta: -9.8 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1007.51 ms. Allocated memory is still 58.7 MB. Free memory was 24.6 MB in the beginning and 21.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 1.4 MB. Max. memory is 16.1 GB. * Witness Printer took 91.46 ms. Allocated memory is still 58.7 MB. Free memory was 21.8 MB in the beginning and 18.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 877]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 877]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 877]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 877]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 878]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - InvariantResult [Line: 878]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - InvariantResult [Line: 878]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7 SDtfs, 12 SDslu, 1 SDs, 0 SdLazy, 4 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, 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, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 20 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 85 SizeOfPredicates, 5 NumberOfNonLiveVariables, 32 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...