./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0970a.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/float_req_bl_0970a.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 88d3648b8ee059de01de6f913fc316c297763bb6 ................................................................................................................................................................. 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/float_req_bl_0970a.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 88d3648b8ee059de01de6f913fc316c297763bb6 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.2.0-2880296 [2020-12-02 16:07:31,804 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 16:07:31,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 16:07:31,860 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 16:07:31,861 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 16:07:31,867 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 16:07:31,871 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 16:07:31,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 16:07:31,882 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 16:07:31,887 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 16:07:31,888 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 16:07:31,892 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 16:07:31,893 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 16:07:31,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 16:07:31,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 16:07:31,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 16:07:31,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 16:07:31,906 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 16:07:31,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 16:07:31,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 16:07:31,921 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 16:07:31,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 16:07:31,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 16:07:31,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 16:07:31,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 16:07:31,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 16:07:31,937 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 16:07:31,939 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 16:07:31,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 16:07:31,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 16:07:31,943 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 16:07:31,944 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 16:07:31,946 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 16:07:31,948 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 16:07:31,950 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 16:07:31,950 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 16:07:31,951 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 16:07:31,951 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 16:07:31,951 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 16:07:31,954 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 16:07:31,955 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 16:07:31,956 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 16:07:32,009 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 16:07:32,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 16:07:32,014 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 16:07:32,014 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 16:07:32,015 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 16:07:32,015 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 16:07:32,015 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 16:07:32,015 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 16:07:32,016 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 16:07:32,016 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 16:07:32,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 16:07:32,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 16:07:32,018 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 16:07:32,018 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 16:07:32,018 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 16:07:32,019 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 16:07:32,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 16:07:32,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 16:07:32,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 16:07:32,020 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 16:07:32,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 16:07:32,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 16:07:32,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 16:07:32,021 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 16:07:32,021 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 16:07:32,021 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 16:07:32,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 16:07:32,022 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 16:07:32,022 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 16:07:32,022 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88d3648b8ee059de01de6f913fc316c297763bb6 [2020-12-02 16:07:32,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 16:07:32,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 16:07:32,489 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 16:07:32,491 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 16:07:32,492 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 16:07:32,493 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0970a.c [2020-12-02 16:07:32,577 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dbbc625c/33f85580c3da423394deeef6a78112a9/FLAG580e8409b [2020-12-02 16:07:33,244 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 16:07:33,245 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0970a.c [2020-12-02 16:07:33,256 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dbbc625c/33f85580c3da423394deeef6a78112a9/FLAG580e8409b [2020-12-02 16:07:33,557 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dbbc625c/33f85580c3da423394deeef6a78112a9 [2020-12-02 16:07:33,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 16:07:33,566 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 16:07:33,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 16:07:33,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 16:07:33,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 16:07:33,575 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:07:33" (1/1) ... [2020-12-02 16:07:33,580 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@667212d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:33, skipping insertion in model container [2020-12-02 16:07:33,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:07:33" (1/1) ... [2020-12-02 16:07:33,590 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 16:07:33,638 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 16:07:33,913 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.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.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:1576) 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 16:07:33,924 INFO L168 Benchmark]: Toolchain (without parser) took 356.94 ms. Allocated memory is still 50.3 MB. Free memory was 26.6 MB in the beginning and 29.4 MB in the end (delta: -2.8 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-12-02 16:07:33,926 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 39.8 MB. Free memory was 17.6 MB in the beginning and 17.5 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 16:07:33,928 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.08 ms. Allocated memory is still 50.3 MB. Free memory was 26.4 MB in the beginning and 29.4 MB in the end (delta: -3.0 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2020-12-02 16:07:33,932 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 39.8 MB. Free memory was 17.6 MB in the beginning and 17.5 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 352.08 ms. Allocated memory is still 50.3 MB. Free memory was 26.4 MB in the beginning and 29.4 MB in the end (delta: -3.0 MB). Peak memory consumption was 5.6 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 16:07:36,425 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 16:07:36,430 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 16:07:36,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 16:07:36,491 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 16:07:36,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 16:07:36,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 16:07:36,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 16:07:36,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 16:07:36,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 16:07:36,519 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 16:07:36,520 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 16:07:36,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 16:07:36,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 16:07:36,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 16:07:36,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 16:07:36,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 16:07:36,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 16:07:36,543 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 16:07:36,551 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 16:07:36,555 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 16:07:36,558 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 16:07:36,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 16:07:36,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 16:07:36,573 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 16:07:36,573 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 16:07:36,574 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 16:07:36,576 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 16:07:36,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 16:07:36,579 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 16:07:36,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 16:07:36,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 16:07:36,584 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 16:07:36,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 16:07:36,586 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 16:07:36,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 16:07:36,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 16:07:36,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 16:07:36,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 16:07:36,591 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 16:07:36,595 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 16:07:36,597 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 16:07:36,653 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 16:07:36,654 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 16:07:36,658 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 16:07:36,659 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 16:07:36,659 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 16:07:36,659 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 16:07:36,660 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 16:07:36,660 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 16:07:36,660 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 16:07:36,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 16:07:36,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 16:07:36,662 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 16:07:36,662 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 16:07:36,663 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 16:07:36,663 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 16:07:36,663 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 16:07:36,663 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 16:07:36,664 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 16:07:36,664 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 16:07:36,664 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 16:07:36,665 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 16:07:36,665 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 16:07:36,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 16:07:36,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 16:07:36,666 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 16:07:36,666 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 16:07:36,667 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 16:07:36,667 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-02 16:07:36,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 16:07:36,668 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 16:07:36,668 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 16:07:36,668 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88d3648b8ee059de01de6f913fc316c297763bb6 [2020-12-02 16:07:37,132 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 16:07:37,185 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 16:07:37,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 16:07:37,192 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 16:07:37,193 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 16:07:37,195 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0970a.c [2020-12-02 16:07:37,276 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb563cc9d/1f198702090b4bbe939b6dff93885814/FLAG145203378 [2020-12-02 16:07:38,006 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 16:07:38,008 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0970a.c [2020-12-02 16:07:38,022 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb563cc9d/1f198702090b4bbe939b6dff93885814/FLAG145203378 [2020-12-02 16:07:38,315 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb563cc9d/1f198702090b4bbe939b6dff93885814 [2020-12-02 16:07:38,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 16:07:38,321 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 16:07:38,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 16:07:38,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 16:07:38,331 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 16:07:38,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:07:38" (1/1) ... [2020-12-02 16:07:38,336 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61b658c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:38, skipping insertion in model container [2020-12-02 16:07:38,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:07:38" (1/1) ... [2020-12-02 16:07:38,349 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 16:07:38,396 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 16:07:38,687 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/float_req_bl_0970a.c[4407,4420] [2020-12-02 16:07:38,691 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 16:07:38,716 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 16:07:38,791 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/float_req_bl_0970a.c[4407,4420] [2020-12-02 16:07:38,792 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 16:07:38,824 INFO L217 MainTranslator]: Completed translation [2020-12-02 16:07:38,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:38 WrapperNode [2020-12-02 16:07:38,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 16:07:38,826 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 16:07:38,827 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 16:07:38,827 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 16:07:38,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:38" (1/1) ... [2020-12-02 16:07:38,900 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:38" (1/1) ... [2020-12-02 16:07:38,953 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 16:07:38,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 16:07:38,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 16:07:38,957 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 16:07:38,970 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:38" (1/1) ... [2020-12-02 16:07:38,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:38" (1/1) ... [2020-12-02 16:07:38,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:38" (1/1) ... [2020-12-02 16:07:38,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:38" (1/1) ... [2020-12-02 16:07:39,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:38" (1/1) ... [2020-12-02 16:07:39,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:38" (1/1) ... [2020-12-02 16:07:39,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:38" (1/1) ... [2020-12-02 16:07:39,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 16:07:39,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 16:07:39,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 16:07:39,026 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 16:07:39,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:38" (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 16:07:39,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-12-02 16:07:39,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-02 16:07:39,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 16:07:39,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-12-02 16:07:39,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-02 16:07:39,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 16:07:39,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 16:07:39,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-02 16:07:39,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_FLOAT [2020-12-02 16:07:39,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-02 16:07:39,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 16:08:07,755 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 16:08:07,756 INFO L298 CfgBuilder]: Removed 26 assume(true) statements. [2020-12-02 16:08:07,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:08:07 BoogieIcfgContainer [2020-12-02 16:08:07,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 16:08:07,760 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 16:08:07,760 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 16:08:07,764 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 16:08:07,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:07:38" (1/3) ... [2020-12-02 16:08:07,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc8e98b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:08:07, skipping insertion in model container [2020-12-02 16:08:07,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:38" (2/3) ... [2020-12-02 16:08:07,767 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc8e98b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:08:07, skipping insertion in model container [2020-12-02 16:08:07,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:08:07" (3/3) ... [2020-12-02 16:08:07,769 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970a.c [2020-12-02 16:08:07,786 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 16:08:07,791 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 16:08:07,805 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 16:08:07,833 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 16:08:07,833 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 16:08:07,834 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 16:08:07,834 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 16:08:07,834 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 16:08:07,834 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 16:08:07,834 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 16:08:07,835 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 16:08:07,850 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2020-12-02 16:08:07,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-02 16:08:07,857 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 16:08:07,858 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 16:08:07,858 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 16:08:07,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 16:08:07,865 INFO L82 PathProgramCache]: Analyzing trace with hash 629078660, now seen corresponding path program 1 times [2020-12-02 16:08:07,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 16:08:07,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1287459315] [2020-12-02 16:08:07,881 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 16:08:08,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 16:08:08,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-02 16:08:08,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 16:08:08,962 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 16:08:08,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 16:08:08,978 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 16:08:08,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1287459315] [2020-12-02 16:08:08,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 16:08:08,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-02 16:08:08,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368725694] [2020-12-02 16:08:08,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 16:08:08,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 16:08:09,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 16:08:09,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 16:08:09,014 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 2 states. [2020-12-02 16:08:09,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 16:08:09,039 INFO L93 Difference]: Finished difference Result 99 states and 160 transitions. [2020-12-02 16:08:09,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 16:08:09,041 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-02 16:08:09,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 16:08:09,052 INFO L225 Difference]: With dead ends: 99 [2020-12-02 16:08:09,053 INFO L226 Difference]: Without dead ends: 47 [2020-12-02 16:08:09,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 16:08:09,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-12-02 16:08:09,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-12-02 16:08:09,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-12-02 16:08:09,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2020-12-02 16:08:09,101 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 62 transitions. Word has length 11 [2020-12-02 16:08:09,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 16:08:09,101 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 62 transitions. [2020-12-02 16:08:09,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 16:08:09,102 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2020-12-02 16:08:09,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 16:08:09,103 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 16:08:09,103 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 16:08:09,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-02 16:08:09,308 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 16:08:09,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 16:08:09,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1648732847, now seen corresponding path program 1 times [2020-12-02 16:08:09,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 16:08:09,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1483865094] [2020-12-02 16:08:09,312 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 16:08:10,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 16:08:10,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-02 16:08:10,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 16:08:10,298 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 16:08:10,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 16:08:10,310 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 16:08:10,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1483865094] [2020-12-02 16:08:10,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 16:08:10,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-12-02 16:08:10,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974317222] [2020-12-02 16:08:10,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-02 16:08:10,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 16:08:10,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-02 16:08:10,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-02 16:08:10,315 INFO L87 Difference]: Start difference. First operand 47 states and 62 transitions. Second operand 3 states. [2020-12-02 16:08:10,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 16:08:10,364 INFO L93 Difference]: Finished difference Result 87 states and 116 transitions. [2020-12-02 16:08:10,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-02 16:08:10,365 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-12-02 16:08:10,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 16:08:10,367 INFO L225 Difference]: With dead ends: 87 [2020-12-02 16:08:10,367 INFO L226 Difference]: Without dead ends: 47 [2020-12-02 16:08:10,368 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-02 16:08:10,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-12-02 16:08:10,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-12-02 16:08:10,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-12-02 16:08:10,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions. [2020-12-02 16:08:10,377 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 61 transitions. Word has length 12 [2020-12-02 16:08:10,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 16:08:10,377 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 61 transitions. [2020-12-02 16:08:10,377 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-02 16:08:10,377 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2020-12-02 16:08:10,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-02 16:08:10,378 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 16:08:10,379 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 16:08:10,593 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-02 16:08:10,594 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 16:08:10,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 16:08:10,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1229314972, now seen corresponding path program 1 times [2020-12-02 16:08:10,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 16:08:10,597 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [664549148] [2020-12-02 16:08:10,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-02 16:08:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 16:08:11,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-02 16:08:11,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 16:08:11,942 WARN L197 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-02 16:08:12,262 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 16:08:12,263 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 16:08:12,899 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 16:08:12,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [664549148] [2020-12-02 16:08:12,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 16:08:12,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-12-02 16:08:12,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613323893] [2020-12-02 16:08:12,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-02 16:08:12,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 16:08:12,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-02 16:08:12,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-12-02 16:08:12,902 INFO L87 Difference]: Start difference. First operand 47 states and 61 transitions. Second operand 10 states. [2020-12-02 16:08:13,255 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 12 [2020-12-02 16:08:15,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 16:08:15,533 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2020-12-02 16:08:15,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-02 16:08:15,572 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 16 [2020-12-02 16:08:15,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 16:08:15,573 INFO L225 Difference]: With dead ends: 52 [2020-12-02 16:08:15,573 INFO L226 Difference]: Without dead ends: 18 [2020-12-02 16:08:15,574 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-12-02 16:08:15,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-12-02 16:08:15,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-12-02 16:08:15,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-12-02 16:08:15,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2020-12-02 16:08:15,579 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2020-12-02 16:08:15,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 16:08:15,579 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2020-12-02 16:08:15,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-02 16:08:15,580 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2020-12-02 16:08:15,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-02 16:08:15,581 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 16:08:15,581 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 16:08:15,793 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-02 16:08:15,794 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 16:08:15,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 16:08:15,796 INFO L82 PathProgramCache]: Analyzing trace with hash -616191433, now seen corresponding path program 1 times [2020-12-02 16:08:15,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 16:08:15,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1834881531] [2020-12-02 16:08:15,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-02 16:08:16,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 16:08:16,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-02 16:08:16,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 16:08:17,747 WARN L197 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-02 16:08:22,784 WARN L197 SmtUtils]: Spent 1.78 s on a formula simplification that was a NOOP. DAG size: 36 [2020-12-02 16:08:22,802 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 16:08:22,806 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-02 16:08:27,246 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 16:08:27,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 16:08:33,340 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start___ieee754_log10f_#t~nondet107_7| (_ BitVec 32)) (|v_ULTIMATE.start___ieee754_log10f_#res_12| (_ BitVec 32)) (ULTIMATE.start___ieee754_log10f_~x (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_log10f_#res_12|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_log10f_#res_12|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_log10f_#res_12|))) (.cse1 (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_log10f_#t~nondet107_7|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_log10f_#t~nondet107_7|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_log10f_#t~nondet107_7|)))) (or (not (fp.eq .cse0 .cse0)) (not (= .cse1 (let ((.cse2 (fp ((_ extract 31 31) ULTIMATE.start___ieee754_log10f_~x) ((_ extract 30 23) ULTIMATE.start___ieee754_log10f_~x) ((_ extract 22 0) ULTIMATE.start___ieee754_log10f_~x)))) (fp.sub c_~CRM .cse2 .cse2)))) (not (= .cse0 (fp.div c_~CRM .cse1 (fp ((_ extract 31 31) c_~zero~0) ((_ extract 30 23) c_~zero~0) ((_ extract 22 0) c_~zero~0)))))))) is different from true [2020-12-02 16:08:33,476 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 16:08:33,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1834881531] [2020-12-02 16:08:33,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 16:08:33,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2020-12-02 16:08:33,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515194254] [2020-12-02 16:08:33,479 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-02 16:08:33,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 16:08:33,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-02 16:08:33,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=53, Unknown=2, NotChecked=14, Total=90 [2020-12-02 16:08:33,482 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 10 states. [2020-12-02 16:08:38,303 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_ULTIMATE.init_#t~nondet102_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_ULTIMATE.init_#t~nondet102_6|) ((_ extract 62 52) |v_ULTIMATE.start_ULTIMATE.init_#t~nondet102_6|) ((_ extract 51 0) |v_ULTIMATE.start_ULTIMATE.init_#t~nondet102_6|)))) (and (= .cse0 (_ +zero 11 53)) (= (fp ((_ extract 31 31) c_~zero~0) ((_ extract 30 23) c_~zero~0) ((_ extract 22 0) c_~zero~0)) ((_ to_fp 8 24) c_~CRM .cse0))))) (forall ((|v_ULTIMATE.start___ieee754_log10f_#t~nondet107_7| (_ BitVec 32)) (|v_ULTIMATE.start___ieee754_log10f_#res_12| (_ BitVec 32)) (ULTIMATE.start___ieee754_log10f_~x (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_log10f_#res_12|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_log10f_#res_12|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_log10f_#res_12|))) (.cse2 (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_log10f_#t~nondet107_7|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_log10f_#t~nondet107_7|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_log10f_#t~nondet107_7|)))) (or (not (fp.eq .cse1 .cse1)) (not (= .cse2 (let ((.cse3 (fp ((_ extract 31 31) ULTIMATE.start___ieee754_log10f_~x) ((_ extract 30 23) ULTIMATE.start___ieee754_log10f_~x) ((_ extract 22 0) ULTIMATE.start___ieee754_log10f_~x)))) (fp.sub c_~CRM .cse3 .cse3)))) (not (= .cse1 (fp.div c_~CRM .cse2 (fp ((_ extract 31 31) c_~zero~0) ((_ extract 30 23) c_~zero~0) ((_ extract 22 0) c_~zero~0))))))))) is different from false [2020-12-02 16:08:40,347 WARN L860 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_ULTIMATE.init_#t~nondet102_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_ULTIMATE.init_#t~nondet102_6|) ((_ extract 62 52) |v_ULTIMATE.start_ULTIMATE.init_#t~nondet102_6|) ((_ extract 51 0) |v_ULTIMATE.start_ULTIMATE.init_#t~nondet102_6|)))) (and (= .cse0 (_ +zero 11 53)) (= (fp ((_ extract 31 31) c_~zero~0) ((_ extract 30 23) c_~zero~0) ((_ extract 22 0) c_~zero~0)) ((_ to_fp 8 24) c_~CRM .cse0))))) (forall ((|v_ULTIMATE.start___ieee754_log10f_#t~nondet107_7| (_ BitVec 32)) (|v_ULTIMATE.start___ieee754_log10f_#res_12| (_ BitVec 32)) (ULTIMATE.start___ieee754_log10f_~x (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_log10f_#res_12|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_log10f_#res_12|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_log10f_#res_12|))) (.cse2 (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_log10f_#t~nondet107_7|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_log10f_#t~nondet107_7|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_log10f_#t~nondet107_7|)))) (or (not (fp.eq .cse1 .cse1)) (not (= .cse2 (let ((.cse3 (fp ((_ extract 31 31) ULTIMATE.start___ieee754_log10f_~x) ((_ extract 30 23) ULTIMATE.start___ieee754_log10f_~x) ((_ extract 22 0) ULTIMATE.start___ieee754_log10f_~x)))) (fp.sub c_~CRM .cse3 .cse3)))) (not (= .cse1 (fp.div c_~CRM .cse2 (fp ((_ extract 31 31) c_~zero~0) ((_ extract 30 23) c_~zero~0) ((_ extract 22 0) c_~zero~0))))))))) is different from true [2020-12-02 16:08:53,261 WARN L197 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 42 DAG size of output: 11 [2020-12-02 16:09:01,294 WARN L197 SmtUtils]: Spent 4.55 s on a formula simplification. DAG size of input: 44 DAG size of output: 13 [2020-12-02 16:09:01,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 16:09:01,298 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-12-02 16:09:01,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-02 16:09:01,298 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 17 [2020-12-02 16:09:01,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 16:09:01,301 INFO L225 Difference]: With dead ends: 18 [2020-12-02 16:09:01,301 INFO L226 Difference]: Without dead ends: 0 [2020-12-02 16:09:01,302 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 43.8s TimeCoverageRelationStatistics Valid=38, Invalid=76, Unknown=4, NotChecked=38, Total=156 [2020-12-02 16:09:01,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-02 16:09:01,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-02 16:09:01,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-02 16:09:01,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-02 16:09:01,303 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-12-02 16:09:01,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 16:09:01,304 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-02 16:09:01,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-02 16:09:01,304 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-02 16:09:01,304 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-02 16:09:01,508 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-02 16:09:01,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-02 16:09:01,948 WARN L197 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-12-02 16:09:11,499 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-12-02 16:09:11,501 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:222) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:131) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.push(UndoableWrapperScript.java:53) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.pushContext(SimplifyDDA.java:737) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walkParam(SimplifyDDA.java:526) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:412) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:165) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:135) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter(HoareAnnotationComposer.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.(HoareAnnotationComposer.java:105) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeCFGHoareAnnotation(BasicCegarLoop.java:1052) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) ... 35 more [2020-12-02 16:09:11,509 INFO L168 Benchmark]: Toolchain (without parser) took 93187.36 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.4 MB in the beginning and 26.2 MB in the end (delta: -4.8 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2020-12-02 16:09:11,510 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 44.0 MB. Free memory was 29.1 MB in the beginning and 29.0 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 16:09:11,512 INFO L168 Benchmark]: CACSL2BoogieTranslator took 502.53 ms. Allocated memory is still 44.0 MB. Free memory was 21.3 MB in the beginning and 17.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-12-02 16:09:11,514 INFO L168 Benchmark]: Boogie Procedure Inliner took 126.69 ms. Allocated memory is still 44.0 MB. Free memory was 17.4 MB in the beginning and 24.6 MB in the end (delta: -7.2 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2020-12-02 16:09:11,515 INFO L168 Benchmark]: Boogie Preprocessor took 67.75 ms. Allocated memory is still 44.0 MB. Free memory was 24.6 MB in the beginning and 21.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-02 16:09:11,516 INFO L168 Benchmark]: RCFGBuilder took 28732.43 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.5 MB in the beginning and 30.8 MB in the end (delta: -9.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2020-12-02 16:09:11,517 INFO L168 Benchmark]: TraceAbstraction took 63747.16 ms. Allocated memory is still 54.5 MB. Free memory was 30.4 MB in the beginning and 26.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. [2020-12-02 16:09:11,522 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 44.0 MB. Free memory was 29.1 MB in the beginning and 29.0 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 502.53 ms. Allocated memory is still 44.0 MB. Free memory was 21.3 MB in the beginning and 17.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 126.69 ms. Allocated memory is still 44.0 MB. Free memory was 17.4 MB in the beginning and 24.6 MB in the end (delta: -7.2 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 67.75 ms. Allocated memory is still 44.0 MB. Free memory was 24.6 MB in the beginning and 21.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 28732.43 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.5 MB in the beginning and 30.8 MB in the end (delta: -9.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 63747.16 ms. Allocated memory is still 54.5 MB. Free memory was 30.4 MB in the beginning and 26.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...