./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0281.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2880296f 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 ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0281.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 41a526911f5478d4ee67d1ffe54a57e775a21596 ............................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0281.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 41a526911f5478d4ee67d1ffe54a57e775a21596 .......................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-2880296 [2020-12-02 15:09:54,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 15:09:54,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 15:09:54,704 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 15:09:54,706 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 15:09:54,711 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 15:09:54,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 15:09:54,721 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 15:09:54,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 15:09:54,734 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 15:09:54,736 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 15:09:54,737 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 15:09:54,738 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 15:09:54,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 15:09:54,743 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 15:09:54,745 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 15:09:54,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 15:09:54,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 15:09:54,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 15:09:54,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 15:09:54,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 15:09:54,771 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 15:09:54,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 15:09:54,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 15:09:54,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 15:09:54,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 15:09:54,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 15:09:54,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 15:09:54,788 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 15:09:54,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 15:09:54,790 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 15:09:54,791 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 15:09:54,793 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 15:09:54,794 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 15:09:54,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 15:09:54,796 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 15:09:54,797 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 15:09:54,797 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 15:09:54,798 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 15:09:54,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 15:09:54,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 15:09:54,802 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 15:09:54,862 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 15:09:54,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 15:09:54,867 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 15:09:54,868 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 15:09:54,868 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 15:09:54,869 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 15:09:54,869 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 15:09:54,869 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 15:09:54,870 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 15:09:54,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 15:09:54,871 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 15:09:54,872 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 15:09:54,872 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 15:09:54,872 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 15:09:54,872 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 15:09:54,873 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 15:09:54,873 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 15:09:54,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 15:09:54,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 15:09:54,874 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 15:09:54,874 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 15:09:54,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:09:54,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 15:09:54,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 15:09:54,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 15:09:54,876 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 15:09:54,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 15:09:54,876 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 15:09:54,876 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 15:09:54,877 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41a526911f5478d4ee67d1ffe54a57e775a21596 [2020-12-02 15:09:55,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 15:09:55,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 15:09:55,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 15:09:55,343 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 15:09:55,344 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 15:09:55,345 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0281.c [2020-12-02 15:09:55,434 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b29d4c44/f6e7df13f73c47febd2643ed422a28f0/FLAG9ff8e28e9 [2020-12-02 15:09:56,132 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 15:09:56,133 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0281.c [2020-12-02 15:09:56,146 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b29d4c44/f6e7df13f73c47febd2643ed422a28f0/FLAG9ff8e28e9 [2020-12-02 15:09:56,495 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b29d4c44/f6e7df13f73c47febd2643ed422a28f0 [2020-12-02 15:09:56,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 15:09:56,503 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 15:09:56,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 15:09:56,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 15:09:56,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 15:09:56,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:09:56" (1/1) ... [2020-12-02 15:09:56,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55cde0d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:09:56, skipping insertion in model container [2020-12-02 15:09:56,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:09:56" (1/1) ... [2020-12-02 15:09:56,526 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 15:09:56,570 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 15:09:56,848 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: conversion from bitvector to float not supported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.transformBitvectorToFloat(IntegerTranslation.java:919) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructUnaryExpression(ExpressionTranslation.java:141) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleUnaryArithmeticOperators(CExpressionTranslator.java:407) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2351) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1970) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1599) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) 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) [2020-12-02 15:09:56,855 INFO L168 Benchmark]: Toolchain (without parser) took 351.18 ms. Allocated memory is still 46.1 MB. Free memory was 25.0 MB in the beginning and 23.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-02 15:09:56,856 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 46.1 MB. Free memory was 32.1 MB in the beginning and 32.1 MB in the end (delta: 24.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:09:56,857 INFO L168 Benchmark]: CACSL2BoogieTranslator took 344.60 ms. Allocated memory is still 46.1 MB. Free memory was 24.8 MB in the beginning and 23.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-02 15:09:56,860 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 46.1 MB. Free memory was 32.1 MB in the beginning and 32.1 MB in the end (delta: 24.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 344.60 ms. Allocated memory is still 46.1 MB. Free memory was 24.8 MB in the beginning and 23.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: conversion from bitvector to float not supported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: conversion from bitvector to float not supported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.transformBitvectorToFloat(IntegerTranslation.java:919) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-2880296 [2020-12-02 15:09:59,170 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 15:09:59,173 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 15:09:59,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 15:09:59,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 15:09:59,237 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 15:09:59,240 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 15:09:59,247 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 15:09:59,250 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 15:09:59,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 15:09:59,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 15:09:59,262 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 15:09:59,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 15:09:59,267 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 15:09:59,268 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 15:09:59,270 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 15:09:59,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 15:09:59,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 15:09:59,280 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 15:09:59,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 15:09:59,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 15:09:59,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 15:09:59,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 15:09:59,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 15:09:59,308 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 15:09:59,308 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 15:09:59,308 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 15:09:59,311 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 15:09:59,311 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 15:09:59,313 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 15:09:59,313 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 15:09:59,314 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 15:09:59,317 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 15:09:59,318 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 15:09:59,322 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 15:09:59,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 15:09:59,323 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 15:09:59,323 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 15:09:59,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 15:09:59,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 15:09:59,332 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 15:09:59,333 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 15:09:59,392 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 15:09:59,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 15:09:59,397 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 15:09:59,397 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 15:09:59,398 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 15:09:59,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 15:09:59,399 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 15:09:59,399 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 15:09:59,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 15:09:59,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 15:09:59,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 15:09:59,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 15:09:59,401 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 15:09:59,402 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 15:09:59,402 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 15:09:59,402 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 15:09:59,402 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 15:09:59,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 15:09:59,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 15:09:59,403 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 15:09:59,404 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 15:09:59,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 15:09:59,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:09:59,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 15:09:59,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 15:09:59,405 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 15:09:59,405 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 15:09:59,406 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-02 15:09:59,406 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 15:09:59,406 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 15:09:59,406 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 15:09:59,407 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41a526911f5478d4ee67d1ffe54a57e775a21596 [2020-12-02 15:09:59,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 15:09:59,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 15:09:59,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 15:09:59,873 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 15:09:59,873 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 15:09:59,874 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0281.c [2020-12-02 15:09:59,965 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db460d8a7/30359140526f4feaafb409c0c22dcb78/FLAG4dcd5d680 [2020-12-02 15:10:00,621 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 15:10:00,622 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0281.c [2020-12-02 15:10:00,636 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db460d8a7/30359140526f4feaafb409c0c22dcb78/FLAG4dcd5d680 [2020-12-02 15:10:00,974 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/db460d8a7/30359140526f4feaafb409c0c22dcb78 [2020-12-02 15:10:00,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 15:10:00,980 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 15:10:00,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 15:10:00,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 15:10:00,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 15:10:00,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:10:00" (1/1) ... [2020-12-02 15:10:00,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5902bad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:10:00, skipping insertion in model container [2020-12-02 15:10:00,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:10:00" (1/1) ... [2020-12-02 15:10:01,014 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 15:10:01,071 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 15:10:01,320 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0281.c[6064,6077] [2020-12-02 15:10:01,328 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:10:01,363 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 15:10:01,473 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0281.c[6064,6077] [2020-12-02 15:10:01,474 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:10:01,511 INFO L217 MainTranslator]: Completed translation [2020-12-02 15:10:01,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:10:01 WrapperNode [2020-12-02 15:10:01,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 15:10:01,514 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 15:10:01,514 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 15:10:01,514 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 15:10:01,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:10:01" (1/1) ... [2020-12-02 15:10:01,578 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:10:01" (1/1) ... [2020-12-02 15:10:01,639 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 15:10:01,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 15:10:01,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 15:10:01,640 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 15:10:01,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:10:01" (1/1) ... [2020-12-02 15:10:01,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:10:01" (1/1) ... [2020-12-02 15:10:01,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:10:01" (1/1) ... [2020-12-02 15:10:01,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:10:01" (1/1) ... [2020-12-02 15:10:01,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:10:01" (1/1) ... [2020-12-02 15:10:01,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:10:01" (1/1) ... [2020-12-02 15:10:01,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:10:01" (1/1) ... [2020-12-02 15:10:01,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 15:10:01,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 15:10:01,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 15:10:01,763 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 15:10:01,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:10:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-12-02 15:10:01,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-12-02 15:10:01,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-02 15:10:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-02 15:10:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-02 15:10:01,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 15:10:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-02 15:10:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 15:10:01,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 15:10:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-02 15:10:01,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 15:10:24,243 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 15:10:24,244 INFO L298 CfgBuilder]: Removed 30 assume(true) statements. [2020-12-02 15:10:24,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:10:24 BoogieIcfgContainer [2020-12-02 15:10:24,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 15:10:24,248 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 15:10:24,248 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 15:10:24,252 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 15:10:24,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:10:00" (1/3) ... [2020-12-02 15:10:24,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f662b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:10:24, skipping insertion in model container [2020-12-02 15:10:24,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:10:01" (2/3) ... [2020-12-02 15:10:24,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f662b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:10:24, skipping insertion in model container [2020-12-02 15:10:24,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:10:24" (3/3) ... [2020-12-02 15:10:24,256 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0281.c [2020-12-02 15:10:24,272 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 15:10:24,276 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 15:10:24,288 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 15:10:24,316 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 15:10:24,316 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 15:10:24,316 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 15:10:24,316 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 15:10:24,316 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 15:10:24,316 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 15:10:24,316 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 15:10:24,317 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 15:10:24,333 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2020-12-02 15:10:24,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-02 15:10:24,339 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:10:24,340 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:10:24,340 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:10:24,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:10:24,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1411777929, now seen corresponding path program 1 times [2020-12-02 15:10:24,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:10:24,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [154886040] [2020-12-02 15:10:24,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/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 [2020-12-02 15:10:25,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:10:25,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-02 15:10:25,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:10:25,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:10:25,338 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:10:25,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:10:25,367 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [154886040] [2020-12-02 15:10:25,367 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:10:25,368 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-02 15:10:25,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882656943] [2020-12-02 15:10:25,374 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 15:10:25,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:10:25,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 15:10:25,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:10:25,406 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 2 states. [2020-12-02 15:10:25,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:10:25,454 INFO L93 Difference]: Finished difference Result 146 states and 238 transitions. [2020-12-02 15:10:25,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 15:10:25,456 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-12-02 15:10:25,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:10:25,471 INFO L225 Difference]: With dead ends: 146 [2020-12-02 15:10:25,471 INFO L226 Difference]: Without dead ends: 71 [2020-12-02 15:10:25,476 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:10:25,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-12-02 15:10:25,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-12-02 15:10:25,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-12-02 15:10:25,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 98 transitions. [2020-12-02 15:10:25,523 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 98 transitions. Word has length 13 [2020-12-02 15:10:25,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:10:25,524 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 98 transitions. [2020-12-02 15:10:25,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 15:10:25,524 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 98 transitions. [2020-12-02 15:10:25,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-02 15:10:25,525 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:10:25,526 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:10:25,726 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-02 15:10:25,727 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:10:25,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:10:25,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1435335568, now seen corresponding path program 1 times [2020-12-02 15:10:25,731 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:10:25,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1311337292] [2020-12-02 15:10:25,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-02 15:10:29,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:10:30,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-02 15:10:30,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:10:30,179 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 15:10:30,184 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-02 15:10:31,058 WARN L197 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-12-02 15:10:31,087 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 15:10:31,090 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 15:10:31,093 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-02 15:10:31,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:10:31,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:10:31,736 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-12-02 15:10:31,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 15:10:31,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1311337292] [2020-12-02 15:10:31,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:10:31,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2020-12-02 15:10:31,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442642956] [2020-12-02 15:10:31,784 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-02 15:10:31,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:10:31,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-02 15:10:31,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-02 15:10:31,787 INFO L87 Difference]: Start difference. First operand 71 states and 98 transitions. Second operand 5 states. [2020-12-02 15:10:33,065 WARN L197 SmtUtils]: Spent 833.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 28 [2020-12-02 15:10:33,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:10:33,075 INFO L93 Difference]: Finished difference Result 72 states and 99 transitions. [2020-12-02 15:10:33,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-02 15:10:33,075 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-12-02 15:10:33,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:10:33,076 INFO L225 Difference]: With dead ends: 72 [2020-12-02 15:10:33,076 INFO L226 Difference]: Without dead ends: 0 [2020-12-02 15:10:33,078 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-12-02 15:10:33,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-02 15:10:33,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-02 15:10:33,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-02 15:10:33,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-02 15:10:33,079 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-12-02 15:10:33,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:10:33,079 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-02 15:10:33,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-02 15:10:33,080 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-02 15:10:33,080 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-02 15:10:33,281 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-02 15:10:33,284 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-02 15:10:33,704 INFO L262 CegarLoopResult]: For program point L250(line 250) no Hoare annotation was computed. [2020-12-02 15:10:33,704 INFO L262 CegarLoopResult]: For program point L168-1(lines 168 172) no Hoare annotation was computed. [2020-12-02 15:10:33,704 INFO L258 CegarLoopResult]: At program point L168-2(lines 168 172) the Hoare annotation is: false [2020-12-02 15:10:33,704 INFO L262 CegarLoopResult]: For program point L135-1(lines 135 139) no Hoare annotation was computed. [2020-12-02 15:10:33,704 INFO L262 CegarLoopResult]: For program point L168-3(lines 168 172) no Hoare annotation was computed. [2020-12-02 15:10:33,705 INFO L258 CegarLoopResult]: At program point L135-2(lines 135 139) the Hoare annotation is: false [2020-12-02 15:10:33,705 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-02 15:10:33,705 INFO L262 CegarLoopResult]: For program point L185(lines 185 200) no Hoare annotation was computed. [2020-12-02 15:10:33,705 INFO L262 CegarLoopResult]: For program point L185-1(lines 185 200) no Hoare annotation was computed. [2020-12-02 15:10:33,705 INFO L258 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: false [2020-12-02 15:10:33,705 INFO L262 CegarLoopResult]: For program point L186(lines 186 199) no Hoare annotation was computed. [2020-12-02 15:10:33,705 INFO L258 CegarLoopResult]: At program point L87-2(lines 87 103) the Hoare annotation is: false [2020-12-02 15:10:33,705 INFO L262 CegarLoopResult]: For program point L87-3(lines 24 132) no Hoare annotation was computed. [2020-12-02 15:10:33,706 INFO L262 CegarLoopResult]: For program point L187(lines 187 188) no Hoare annotation was computed. [2020-12-02 15:10:33,706 INFO L262 CegarLoopResult]: For program point L55-2(lines 55 56) no Hoare annotation was computed. [2020-12-02 15:10:33,706 INFO L258 CegarLoopResult]: At program point L55-3(lines 55 56) the Hoare annotation is: false [2020-12-02 15:10:33,708 INFO L262 CegarLoopResult]: For program point L55-4(lines 55 56) no Hoare annotation was computed. [2020-12-02 15:10:33,708 INFO L262 CegarLoopResult]: For program point L105(lines 105 119) no Hoare annotation was computed. [2020-12-02 15:10:33,708 INFO L262 CegarLoopResult]: For program point L122(lines 122 123) no Hoare annotation was computed. [2020-12-02 15:10:33,708 INFO L262 CegarLoopResult]: For program point L122-2(lines 122 123) no Hoare annotation was computed. [2020-12-02 15:10:33,708 INFO L265 CegarLoopResult]: At program point L255(lines 234 256) the Hoare annotation is: true [2020-12-02 15:10:33,708 INFO L262 CegarLoopResult]: For program point L90(lines 90 99) no Hoare annotation was computed. [2020-12-02 15:10:33,708 INFO L262 CegarLoopResult]: For program point L90-2(lines 90 99) no Hoare annotation was computed. [2020-12-02 15:10:33,708 INFO L262 CegarLoopResult]: For program point L140(lines 140 145) no Hoare annotation was computed. [2020-12-02 15:10:33,709 INFO L262 CegarLoopResult]: For program point L140-1(lines 133 147) no Hoare annotation was computed. [2020-12-02 15:10:33,709 INFO L262 CegarLoopResult]: For program point L107(lines 107 118) no Hoare annotation was computed. [2020-12-02 15:10:33,709 INFO L262 CegarLoopResult]: For program point L140-2(lines 140 145) no Hoare annotation was computed. [2020-12-02 15:10:33,709 INFO L262 CegarLoopResult]: For program point L41(lines 41 46) no Hoare annotation was computed. [2020-12-02 15:10:33,709 INFO L258 CegarLoopResult]: At program point L74-2(lines 74 84) the Hoare annotation is: false [2020-12-02 15:10:33,709 INFO L262 CegarLoopResult]: For program point L41-2(lines 41 46) no Hoare annotation was computed. [2020-12-02 15:10:33,709 INFO L262 CegarLoopResult]: For program point L74-3(lines 74 84) no Hoare annotation was computed. [2020-12-02 15:10:33,709 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-02 15:10:33,710 INFO L262 CegarLoopResult]: For program point L174(lines 174 200) no Hoare annotation was computed. [2020-12-02 15:10:33,710 INFO L262 CegarLoopResult]: For program point L42(lines 42 45) no Hoare annotation was computed. [2020-12-02 15:10:33,710 INFO L262 CegarLoopResult]: For program point L92(lines 92 93) no Hoare annotation was computed. [2020-12-02 15:10:33,710 INFO L262 CegarLoopResult]: For program point L125-1(lines 125 130) no Hoare annotation was computed. [2020-12-02 15:10:33,710 INFO L258 CegarLoopResult]: At program point L125-2(lines 125 130) the Hoare annotation is: false [2020-12-02 15:10:33,710 INFO L262 CegarLoopResult]: For program point L92-2(lines 92 93) no Hoare annotation was computed. [2020-12-02 15:10:33,710 INFO L262 CegarLoopResult]: For program point L125-3(lines 125 130) no Hoare annotation was computed. [2020-12-02 15:10:33,711 INFO L262 CegarLoopResult]: For program point L109(lines 109 117) no Hoare annotation was computed. [2020-12-02 15:10:33,711 INFO L262 CegarLoopResult]: For program point L76(lines 76 80) no Hoare annotation was computed. [2020-12-02 15:10:33,711 INFO L262 CegarLoopResult]: For program point L76-2(lines 76 80) no Hoare annotation was computed. [2020-12-02 15:10:33,712 INFO L262 CegarLoopResult]: For program point L176-1(lines 176 180) no Hoare annotation was computed. [2020-12-02 15:10:33,712 INFO L258 CegarLoopResult]: At program point L176-2(lines 176 180) the Hoare annotation is: false [2020-12-02 15:10:33,712 INFO L262 CegarLoopResult]: For program point L176-3(lines 174 185) no Hoare annotation was computed. [2020-12-02 15:10:33,712 INFO L262 CegarLoopResult]: For program point L44(lines 44 45) no Hoare annotation was computed. [2020-12-02 15:10:33,712 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-02 15:10:33,712 INFO L262 CegarLoopResult]: For program point L95(lines 95 96) no Hoare annotation was computed. [2020-12-02 15:10:33,713 INFO L262 CegarLoopResult]: For program point L95-2(lines 95 96) no Hoare annotation was computed. [2020-12-02 15:10:33,713 INFO L262 CegarLoopResult]: For program point L244(line 244) no Hoare annotation was computed. [2020-12-02 15:10:33,713 INFO L262 CegarLoopResult]: For program point L211(lines 211 227) no Hoare annotation was computed. [2020-12-02 15:10:33,713 INFO L262 CegarLoopResult]: For program point L244-2(lines 244 253) no Hoare annotation was computed. [2020-12-02 15:10:33,713 INFO L262 CegarLoopResult]: For program point L211-2(lines 165 232) no Hoare annotation was computed. [2020-12-02 15:10:33,714 INFO L262 CegarLoopResult]: For program point L112(lines 112 117) no Hoare annotation was computed. [2020-12-02 15:10:33,714 INFO L262 CegarLoopResult]: For program point L244-4(lines 244 253) no Hoare annotation was computed. [2020-12-02 15:10:33,714 INFO L262 CegarLoopResult]: For program point L63(lines 63 66) no Hoare annotation was computed. [2020-12-02 15:10:33,714 INFO L262 CegarLoopResult]: For program point L30-1(lines 30 35) no Hoare annotation was computed. [2020-12-02 15:10:33,714 INFO L262 CegarLoopResult]: For program point L63-2(lines 63 66) no Hoare annotation was computed. [2020-12-02 15:10:33,715 INFO L258 CegarLoopResult]: At program point L30-2(lines 30 35) the Hoare annotation is: false [2020-12-02 15:10:33,715 INFO L262 CegarLoopResult]: For program point L30-3(lines 24 132) no Hoare annotation was computed. [2020-12-02 15:10:33,715 INFO L258 CegarLoopResult]: At program point L146(lines 133 147) the Hoare annotation is: false [2020-12-02 15:10:33,715 INFO L262 CegarLoopResult]: For program point L113(lines 113 114) no Hoare annotation was computed. [2020-12-02 15:10:33,715 INFO L262 CegarLoopResult]: For program point L113-2(lines 113 114) no Hoare annotation was computed. [2020-12-02 15:10:33,717 INFO L258 CegarLoopResult]: At program point L131(lines 24 132) the Hoare annotation is: false [2020-12-02 15:10:33,718 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-02 15:10:33,718 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 250) no Hoare annotation was computed. [2020-12-02 15:10:33,718 INFO L262 CegarLoopResult]: For program point L49(lines 49 60) no Hoare annotation was computed. [2020-12-02 15:10:33,718 INFO L262 CegarLoopResult]: For program point L49-2(lines 49 60) no Hoare annotation was computed. [2020-12-02 15:10:33,721 INFO L258 CegarLoopResult]: At program point L231(lines 165 232) the Hoare annotation is: false [2020-12-02 15:10:33,721 INFO L258 CegarLoopResult]: At program point L50-2(lines 50 54) the Hoare annotation is: false [2020-12-02 15:10:33,721 INFO L262 CegarLoopResult]: For program point L50-3(lines 50 54) no Hoare annotation was computed. [2020-12-02 15:10:33,721 INFO L262 CegarLoopResult]: For program point L249(lines 249 252) no Hoare annotation was computed. [2020-12-02 15:10:33,722 INFO L262 CegarLoopResult]: For program point L216-1(lines 216 221) no Hoare annotation was computed. [2020-12-02 15:10:33,722 INFO L258 CegarLoopResult]: At program point L216-2(lines 216 221) the Hoare annotation is: false [2020-12-02 15:10:33,722 INFO L262 CegarLoopResult]: For program point L216-3(lines 216 221) no Hoare annotation was computed. [2020-12-02 15:10:33,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:10:33 BoogieIcfgContainer [2020-12-02 15:10:33,740 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 15:10:33,742 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 15:10:33,742 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 15:10:33,743 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 15:10:33,743 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:10:24" (3/4) ... [2020-12-02 15:10:33,748 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-02 15:10:33,777 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2020-12-02 15:10:33,778 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-02 15:10:33,779 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 15:10:33,780 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-02 15:10:33,916 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-02 15:10:33,917 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 15:10:33,919 INFO L168 Benchmark]: Toolchain (without parser) took 32938.96 ms. Allocated memory was 41.9 MB in the beginning and 60.8 MB in the end (delta: 18.9 MB). Free memory was 19.7 MB in the beginning and 22.0 MB in the end (delta: -2.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-02 15:10:33,920 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 41.9 MB. Free memory was 22.9 MB in the beginning and 22.9 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:10:33,921 INFO L168 Benchmark]: CACSL2BoogieTranslator took 531.18 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 19.5 MB in the beginning and 29.2 MB in the end (delta: -9.7 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. [2020-12-02 15:10:33,921 INFO L168 Benchmark]: Boogie Procedure Inliner took 125.22 ms. Allocated memory is still 50.3 MB. Free memory was 29.0 MB in the beginning and 24.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-02 15:10:33,922 INFO L168 Benchmark]: Boogie Preprocessor took 120.56 ms. Allocated memory is still 50.3 MB. Free memory was 24.9 MB in the beginning and 32.3 MB in the end (delta: -7.4 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2020-12-02 15:10:33,923 INFO L168 Benchmark]: RCFGBuilder took 22484.77 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 32.3 MB in the beginning and 40.7 MB in the end (delta: -8.4 MB). Peak memory consumption was 21.5 MB. Max. memory is 16.1 GB. [2020-12-02 15:10:33,923 INFO L168 Benchmark]: TraceAbstraction took 9492.08 ms. Allocated memory is still 60.8 MB. Free memory was 40.4 MB in the beginning and 30.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2020-12-02 15:10:33,924 INFO L168 Benchmark]: Witness Printer took 175.16 ms. Allocated memory is still 60.8 MB. Free memory was 30.4 MB in the beginning and 22.0 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-02 15:10:33,926 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 41.9 MB. Free memory was 22.9 MB in the beginning and 22.9 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 531.18 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 19.5 MB in the beginning and 29.2 MB in the end (delta: -9.7 MB). Peak memory consumption was 9.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 125.22 ms. Allocated memory is still 50.3 MB. Free memory was 29.0 MB in the beginning and 24.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 120.56 ms. Allocated memory is still 50.3 MB. Free memory was 24.9 MB in the beginning and 32.3 MB in the end (delta: -7.4 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * RCFGBuilder took 22484.77 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 32.3 MB in the beginning and 40.7 MB in the end (delta: -8.4 MB). Peak memory consumption was 21.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9492.08 ms. Allocated memory is still 60.8 MB. Free memory was 40.4 MB in the beginning and 30.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. * Witness Printer took 175.16 ms. Allocated memory is still 60.8 MB. Free memory was 30.4 MB in the beginning and 22.0 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 250]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 135]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 168]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 234]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 216]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 176]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 105 SDtfs, 1 SDslu, 1 SDs, 0 SdLazy, 6 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 15 PreInvPairs, 16 NumberOfFragments, 15 HoareAnnotationTreeSize, 15 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 4.5s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 50 ConstructedInterpolants, 2 QuantifiedInterpolants, 2290 SizeOfPredicates, 6 NumberOfNonLiveVariables, 163 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...