./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_0920a.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_0920a.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 77b3a373bd5532f9284ea33fd7b532cf320a99fa ..................................................................................................................................................................... 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_0920a.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 77b3a373bd5532f9284ea33fd7b532cf320a99fa ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-2880296 [2020-12-02 19:53:35,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 19:53:35,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 19:53:35,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 19:53:35,490 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 19:53:35,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 19:53:35,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 19:53:35,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 19:53:35,514 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 19:53:35,516 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 19:53:35,520 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 19:53:35,521 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 19:53:35,522 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 19:53:35,523 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 19:53:35,525 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 19:53:35,526 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 19:53:35,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 19:53:35,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 19:53:35,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 19:53:35,533 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 19:53:35,535 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 19:53:35,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 19:53:35,539 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 19:53:35,540 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 19:53:35,543 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 19:53:35,544 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 19:53:35,544 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 19:53:35,546 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 19:53:35,546 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 19:53:35,548 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 19:53:35,548 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 19:53:35,549 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 19:53:35,550 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 19:53:35,552 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 19:53:35,553 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 19:53:35,553 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 19:53:35,566 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 19:53:35,567 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 19:53:35,567 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 19:53:35,568 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 19:53:35,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 19:53:35,571 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 19:53:35,601 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 19:53:35,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 19:53:35,603 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 19:53:35,603 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 19:53:35,604 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 19:53:35,604 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 19:53:35,604 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 19:53:35,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 19:53:35,604 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 19:53:35,605 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 19:53:35,605 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 19:53:35,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 19:53:35,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 19:53:35,605 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 19:53:35,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 19:53:35,606 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 19:53:35,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 19:53:35,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 19:53:35,606 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 19:53:35,607 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 19:53:35,607 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 19:53:35,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 19:53:35,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 19:53:35,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 19:53:35,608 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 19:53:35,608 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 19:53:35,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 19:53:35,608 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 19:53:35,608 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 19:53:35,608 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77b3a373bd5532f9284ea33fd7b532cf320a99fa [2020-12-02 19:53:36,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 19:53:36,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 19:53:36,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 19:53:36,082 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 19:53:36,083 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 19:53:36,084 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0920a.c [2020-12-02 19:53:36,168 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/459af2ec6/860370c856a345378454a7e1f3802b77/FLAG37bb49600 [2020-12-02 19:53:36,850 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 19:53:36,850 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0920a.c [2020-12-02 19:53:36,868 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/459af2ec6/860370c856a345378454a7e1f3802b77/FLAG37bb49600 [2020-12-02 19:53:37,205 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/459af2ec6/860370c856a345378454a7e1f3802b77 [2020-12-02 19:53:37,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 19:53:37,214 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 19:53:37,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 19:53:37,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 19:53:37,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 19:53:37,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:53:37" (1/1) ... [2020-12-02 19:53:37,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fae97a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:37, skipping insertion in model container [2020-12-02 19:53:37,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:53:37" (1/1) ... [2020-12-02 19:53:37,242 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 19:53:37,290 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 19:53:37,524 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.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 19:53:37,532 INFO L168 Benchmark]: Toolchain (without parser) took 316.51 ms. Allocated memory is still 48.2 MB. Free memory was 25.9 MB in the beginning and 28.9 MB in the end (delta: -2.9 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-12-02 19:53:37,533 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 48.2 MB. Free memory was 30.8 MB in the beginning and 30.7 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 19:53:37,534 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.83 ms. Allocated memory is still 48.2 MB. Free memory was 25.7 MB in the beginning and 28.9 MB in the end (delta: -3.1 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-12-02 19:53:37,536 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 48.2 MB. Free memory was 30.8 MB in the beginning and 30.7 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 311.83 ms. Allocated memory is still 48.2 MB. Free memory was 25.7 MB in the beginning and 28.9 MB in the end (delta: -3.1 MB). Peak memory consumption was 5.5 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 19:53:40,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 19:53:40,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 19:53:40,099 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 19:53:40,100 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 19:53:40,101 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 19:53:40,103 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 19:53:40,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 19:53:40,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 19:53:40,109 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 19:53:40,110 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 19:53:40,111 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 19:53:40,112 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 19:53:40,113 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 19:53:40,114 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 19:53:40,116 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 19:53:40,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 19:53:40,118 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 19:53:40,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 19:53:40,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 19:53:40,125 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 19:53:40,132 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 19:53:40,133 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 19:53:40,134 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 19:53:40,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 19:53:40,142 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 19:53:40,143 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 19:53:40,144 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 19:53:40,144 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 19:53:40,149 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 19:53:40,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 19:53:40,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 19:53:40,153 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 19:53:40,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 19:53:40,158 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 19:53:40,161 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 19:53:40,162 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 19:53:40,163 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 19:53:40,163 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 19:53:40,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 19:53:40,167 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 19:53:40,168 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 19:53:40,229 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 19:53:40,230 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 19:53:40,232 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 19:53:40,234 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 19:53:40,235 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 19:53:40,235 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 19:53:40,235 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 19:53:40,236 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 19:53:40,236 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 19:53:40,236 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 19:53:40,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 19:53:40,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 19:53:40,238 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 19:53:40,239 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 19:53:40,239 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 19:53:40,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 19:53:40,239 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 19:53:40,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 19:53:40,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 19:53:40,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 19:53:40,240 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 19:53:40,241 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 19:53:40,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 19:53:40,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 19:53:40,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 19:53:40,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 19:53:40,242 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 19:53:40,242 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-02 19:53:40,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 19:53:40,243 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 19:53:40,243 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 19:53:40,243 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77b3a373bd5532f9284ea33fd7b532cf320a99fa [2020-12-02 19:53:40,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 19:53:40,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 19:53:40,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 19:53:40,676 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 19:53:40,677 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 19:53:40,678 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0920a.c [2020-12-02 19:53:40,760 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eabbe7365/f85b8f6437594cc2a83d51c94472741e/FLAG11ff1938a [2020-12-02 19:53:41,449 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 19:53:41,450 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0920a.c [2020-12-02 19:53:41,463 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eabbe7365/f85b8f6437594cc2a83d51c94472741e/FLAG11ff1938a [2020-12-02 19:53:41,748 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eabbe7365/f85b8f6437594cc2a83d51c94472741e [2020-12-02 19:53:41,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 19:53:41,754 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 19:53:41,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 19:53:41,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 19:53:41,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 19:53:41,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:53:41" (1/1) ... [2020-12-02 19:53:41,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e07aa24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:41, skipping insertion in model container [2020-12-02 19:53:41,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:53:41" (1/1) ... [2020-12-02 19:53:41,782 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 19:53:41,820 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 19:53:42,082 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_0920a.c[4007,4020] [2020-12-02 19:53:42,085 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 19:53:42,113 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 19:53:42,185 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_0920a.c[4007,4020] [2020-12-02 19:53:42,186 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 19:53:42,216 INFO L217 MainTranslator]: Completed translation [2020-12-02 19:53:42,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:42 WrapperNode [2020-12-02 19:53:42,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 19:53:42,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 19:53:42,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 19:53:42,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 19:53:42,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:42" (1/1) ... [2020-12-02 19:53:42,253 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:42" (1/1) ... [2020-12-02 19:53:42,315 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 19:53:42,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 19:53:42,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 19:53:42,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 19:53:42,328 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:42" (1/1) ... [2020-12-02 19:53:42,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:42" (1/1) ... [2020-12-02 19:53:42,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:42" (1/1) ... [2020-12-02 19:53:42,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:42" (1/1) ... [2020-12-02 19:53:42,385 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:42" (1/1) ... [2020-12-02 19:53:42,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:42" (1/1) ... [2020-12-02 19:53:42,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:42" (1/1) ... [2020-12-02 19:53:42,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 19:53:42,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 19:53:42,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 19:53:42,430 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 19:53:42,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:42" (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 19:53:42,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-12-02 19:53:42,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-02 19:53:42,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-02 19:53:42,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-02 19:53:42,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 19:53:42,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-02 19:53:42,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 19:53:42,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 19:53:42,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-02 19:53:42,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 19:54:09,940 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 19:54:09,941 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-12-02 19:54:09,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:54:09 BoogieIcfgContainer [2020-12-02 19:54:09,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 19:54:09,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 19:54:09,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 19:54:09,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 19:54:09,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:53:41" (1/3) ... [2020-12-02 19:54:09,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b1e95f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:54:09, skipping insertion in model container [2020-12-02 19:54:09,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:53:42" (2/3) ... [2020-12-02 19:54:09,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b1e95f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:54:09, skipping insertion in model container [2020-12-02 19:54:09,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:54:09" (3/3) ... [2020-12-02 19:54:09,953 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0920a.c [2020-12-02 19:54:09,971 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 19:54:09,975 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 19:54:09,989 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 19:54:10,018 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 19:54:10,019 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 19:54:10,019 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 19:54:10,019 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 19:54:10,019 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 19:54:10,019 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 19:54:10,020 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 19:54:10,020 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 19:54:10,035 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-12-02 19:54:10,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-02 19:54:10,042 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 19:54:10,043 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 19:54:10,044 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 19:54:10,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 19:54:10,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1394505008, now seen corresponding path program 1 times [2020-12-02 19:54:10,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 19:54:10,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [576442370] [2020-12-02 19:54:10,067 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 19:54:10,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 19:54:10,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-02 19:54:10,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 19:54:10,453 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 19:54:10,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 19:54:10,466 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 19:54:10,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [576442370] [2020-12-02 19:54:10,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 19:54:10,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-02 19:54:10,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105299222] [2020-12-02 19:54:10,475 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 19:54:10,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 19:54:10,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 19:54:10,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 19:54:10,495 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2020-12-02 19:54:10,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 19:54:10,519 INFO L93 Difference]: Finished difference Result 69 states and 110 transitions. [2020-12-02 19:54:10,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 19:54:10,520 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-12-02 19:54:10,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 19:54:10,538 INFO L225 Difference]: With dead ends: 69 [2020-12-02 19:54:10,538 INFO L226 Difference]: Without dead ends: 32 [2020-12-02 19:54:10,542 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 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 19:54:10,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-12-02 19:54:10,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-12-02 19:54:10,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-12-02 19:54:10,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 43 transitions. [2020-12-02 19:54:10,588 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 43 transitions. Word has length 12 [2020-12-02 19:54:10,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 19:54:10,588 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 43 transitions. [2020-12-02 19:54:10,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 19:54:10,589 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions. [2020-12-02 19:54:10,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-02 19:54:10,590 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 19:54:10,590 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 19:54:10,809 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-02 19:54:10,809 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 19:54:10,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 19:54:10,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1007782307, now seen corresponding path program 1 times [2020-12-02 19:54:10,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 19:54:10,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [194224720] [2020-12-02 19:54:10,815 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 19:54:11,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 19:54:11,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-02 19:54:11,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 19:54:11,146 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 19:54:11,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 19:54:11,160 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 19:54:11,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [194224720] [2020-12-02 19:54:11,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 19:54:11,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-12-02 19:54:11,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87227521] [2020-12-02 19:54:11,163 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-02 19:54:11,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 19:54:11,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-02 19:54:11,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-02 19:54:11,165 INFO L87 Difference]: Start difference. First operand 32 states and 43 transitions. Second operand 3 states. [2020-12-02 19:54:11,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 19:54:11,263 INFO L93 Difference]: Finished difference Result 57 states and 78 transitions. [2020-12-02 19:54:11,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-02 19:54:11,264 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-12-02 19:54:11,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 19:54:11,265 INFO L225 Difference]: With dead ends: 57 [2020-12-02 19:54:11,265 INFO L226 Difference]: Without dead ends: 32 [2020-12-02 19:54:11,267 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 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 19:54:11,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-12-02 19:54:11,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-12-02 19:54:11,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-12-02 19:54:11,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions. [2020-12-02 19:54:11,273 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 42 transitions. Word has length 13 [2020-12-02 19:54:11,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 19:54:11,274 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 42 transitions. [2020-12-02 19:54:11,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-02 19:54:11,274 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions. [2020-12-02 19:54:11,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-02 19:54:11,275 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 19:54:11,275 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 19:54:11,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-02 19:54:11,490 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 19:54:11,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 19:54:11,492 INFO L82 PathProgramCache]: Analyzing trace with hash 32951480, now seen corresponding path program 1 times [2020-12-02 19:54:11,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 19:54:11,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [997405315] [2020-12-02 19:54:11,494 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 19:54:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 19:54:11,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-02 19:54:11,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 19:54:12,416 WARN L197 SmtUtils]: Spent 475.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-02 19:54:12,621 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-02 19:54:12,876 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-02 19:54:13,222 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-02 19:54:14,058 WARN L197 SmtUtils]: Spent 586.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-12-02 19:54:15,000 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 19:54:15,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 19:54:16,245 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-12-02 19:54:16,713 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-02 19:54:17,185 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-02 19:54:17,841 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-02 19:54:18,440 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-02 19:54:18,472 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 19:54:18,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [997405315] [2020-12-02 19:54:18,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 19:54:18,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2020-12-02 19:54:18,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009064351] [2020-12-02 19:54:18,474 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-02 19:54:18,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 19:54:18,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-02 19:54:18,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2020-12-02 19:54:18,476 INFO L87 Difference]: Start difference. First operand 32 states and 42 transitions. Second operand 16 states. [2020-12-02 19:54:19,445 WARN L197 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 14 [2020-12-02 19:54:20,558 WARN L197 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 17 [2020-12-02 19:54:21,433 WARN L197 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 25 [2020-12-02 19:54:23,164 WARN L197 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 31 DAG size of output: 31 [2020-12-02 19:54:23,678 WARN L197 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-12-02 19:54:24,244 WARN L197 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-12-02 19:54:30,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 19:54:30,239 INFO L93 Difference]: Finished difference Result 37 states and 46 transitions. [2020-12-02 19:54:30,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-02 19:54:30,272 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 17 [2020-12-02 19:54:30,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 19:54:30,273 INFO L225 Difference]: With dead ends: 37 [2020-12-02 19:54:30,274 INFO L226 Difference]: Without dead ends: 19 [2020-12-02 19:54:30,275 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2020-12-02 19:54:30,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-12-02 19:54:30,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-12-02 19:54:30,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-12-02 19:54:30,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-12-02 19:54:30,280 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 17 [2020-12-02 19:54:30,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 19:54:30,280 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-12-02 19:54:30,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-02 19:54:30,281 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-12-02 19:54:30,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-02 19:54:30,281 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 19:54:30,282 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 19:54:30,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-02 19:54:30,491 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 19:54:30,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 19:54:30,493 INFO L82 PathProgramCache]: Analyzing trace with hash -677236169, now seen corresponding path program 1 times [2020-12-02 19:54:30,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 19:54:30,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1266343143] [2020-12-02 19:54:30,495 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 19:54:31,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 19:54:31,756 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 19:54:33,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-02 19:54:33,020 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-02 19:54:33,217 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-12-02 19:54:33,217 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-02 19:54:33,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-02 19:54:33,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:54:33 BoogieIcfgContainer [2020-12-02 19:54:33,496 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-02 19:54:33,497 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-02 19:54:33,497 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-02 19:54:33,497 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-02 19:54:33,498 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:54:09" (3/4) ... [2020-12-02 19:54:33,501 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-02 19:54:33,568 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-02 19:54:33,568 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-02 19:54:33,570 INFO L168 Benchmark]: Toolchain (without parser) took 51815.74 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 18.9 MB in the beginning and 21.3 MB in the end (delta: -2.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 16.1 GB. [2020-12-02 19:54:33,570 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 33.6 MB. Free memory was 16.6 MB in the beginning and 16.5 MB in the end (delta: 42.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 19:54:33,571 INFO L168 Benchmark]: CACSL2BoogieTranslator took 462.88 ms. Allocated memory is still 41.9 MB. Free memory was 18.7 MB in the beginning and 23.2 MB in the end (delta: -4.5 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2020-12-02 19:54:33,572 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.55 ms. Allocated memory is still 41.9 MB. Free memory was 23.2 MB in the beginning and 20.0 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 19:54:33,573 INFO L168 Benchmark]: Boogie Preprocessor took 113.49 ms. Allocated memory is still 41.9 MB. Free memory was 19.9 MB in the beginning and 17.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-02 19:54:33,573 INFO L168 Benchmark]: RCFGBuilder took 27513.45 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 17.3 MB in the beginning and 32.1 MB in the end (delta: -14.8 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2020-12-02 19:54:33,574 INFO L168 Benchmark]: TraceAbstraction took 23551.33 ms. Allocated memory is still 52.4 MB. Free memory was 31.6 MB in the beginning and 25.1 MB in the end (delta: 6.5 MB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. [2020-12-02 19:54:33,575 INFO L168 Benchmark]: Witness Printer took 71.37 ms. Allocated memory is still 52.4 MB. Free memory was 25.0 MB in the beginning and 21.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-02 19:54:33,579 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 33.6 MB. Free memory was 16.6 MB in the beginning and 16.5 MB in the end (delta: 42.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 462.88 ms. Allocated memory is still 41.9 MB. Free memory was 18.7 MB in the beginning and 23.2 MB in the end (delta: -4.5 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 94.55 ms. Allocated memory is still 41.9 MB. Free memory was 23.2 MB in the beginning and 20.0 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 113.49 ms. Allocated memory is still 41.9 MB. Free memory was 19.9 MB in the beginning and 17.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 27513.45 ms. Allocated memory was 41.9 MB in the beginning and 52.4 MB in the end (delta: 10.5 MB). Free memory was 17.3 MB in the beginning and 32.1 MB in the end (delta: -14.8 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 23551.33 ms. Allocated memory is still 52.4 MB. Free memory was 31.6 MB in the beginning and 25.1 MB in the end (delta: 6.5 MB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. * Witness Printer took 71.37 ms. Allocated memory is still 52.4 MB. Free memory was 25.0 MB in the beginning and 21.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 156]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L34] EXPR 6.93147180369123816490e-01 [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L34] EXPR 6.93147180369123816490e-01 [L35] EXPR 1.90821492927058770002e-10 [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L35] EXPR 1.90821492927058770002e-10 [L36] EXPR 1.80143985094819840000e+16 [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L36] EXPR 1.80143985094819840000e+16 [L37] EXPR 6.666666666666735130e-01 [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L37] EXPR 6.666666666666735130e-01 [L38] EXPR 3.999999999940941908e-01 [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L38] EXPR 3.999999999940941908e-01 [L39] EXPR 2.857142874366239149e-01 [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L39] EXPR 2.857142874366239149e-01 [L40] EXPR 2.222219843214978396e-01 [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L40] EXPR 2.222219843214978396e-01 [L41] EXPR 1.818357216161805012e-01 [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L41] EXPR 1.818357216161805012e-01 [L42] EXPR 1.531383769920937332e-01 [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L42] EXPR 1.531383769920937332e-01 [L43] EXPR 1.479819860511658591e-01 [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L43] 1.479819860511658591e-01 [L45] EXPR 0.0 [L45] static const double zero = 0.0; [L45] 0.0 VAL [Lg1_log=4604180019048437139, Lg2_log=4600877379321592324, Lg3_log=4598818590951641945, Lg4_log=4597174411056806063, Lg5_log=4595719342595441630, Lg6_log=4594685411790997151, Lg7_log=4594499633228436036, ln2_hi_log=4604418534311723008, ln2_lo_log=4461442080421002358, two54_log=4850376798678024192, zero=0] [L148] double x = __VERIFIER_nondet_double(); [L150] EXPR x < 0 && isfinite_double(x) [L129] __int32_t hx; VAL [Lg1_log=4604180019048437139, Lg2_log=4600877379321592324, Lg3_log=4598818590951641945, Lg4_log=4597174411056806063, Lg5_log=4595719342595441630, Lg6_log=4594685411790997151, Lg7_log=4594499633228436036, ln2_hi_log=4604418534311723008, ln2_lo_log=4461442080421002358, two54_log=4850376798678024192, zero=0] [L131] ieee_double_shape_type gh_u; [L132] gh_u.value = (x) [L133] EXPR gh_u.parts.msw [L133] (hx) = gh_u.parts.msw [L135] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [Lg1_log=4604180019048437139, Lg2_log=4600877379321592324, Lg3_log=4598818590951641945, Lg4_log=4597174411056806063, Lg5_log=4595719342595441630, Lg6_log=4594685411790997151, Lg7_log=4594499633228436036, ln2_hi_log=4604418534311723008, ln2_lo_log=4461442080421002358, two54_log=4850376798678024192, zero=0] [L150] EXPR x < 0 && isfinite_double(x) VAL [Lg1_log=4604180019048437139, Lg2_log=4600877379321592324, Lg3_log=4598818590951641945, Lg4_log=4597174411056806063, Lg5_log=4595719342595441630, Lg6_log=4594685411790997151, Lg7_log=4594499633228436036, ln2_hi_log=4604418534311723008, ln2_lo_log=4461442080421002358, two54_log=4850376798678024192, zero=0] [L150] COND TRUE (x < 0 && isfinite_double(x)) [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; VAL [Lg1_log=4604180019048437139, Lg2_log=4600877379321592324, Lg3_log=4598818590951641945, Lg4_log=4597174411056806063, Lg5_log=4595719342595441630, Lg6_log=4594685411790997151, Lg7_log=4594499633228436036, ln2_hi_log=4604418534311723008, ln2_lo_log=4461442080421002358, two54_log=4850376798678024192, zero=0] [L53] ieee_double_shape_type ew_u; [L54] ew_u.value = (x) [L55] EXPR ew_u.parts.msw [L55] (hx) = ew_u.parts.msw [L56] EXPR ew_u.parts.lsw [L56] (lx) = ew_u.parts.lsw [L59] k = 0 VAL [Lg1_log=4604180019048437139, Lg2_log=4600877379321592324, Lg3_log=4598818590951641945, Lg4_log=4597174411056806063, Lg5_log=4595719342595441630, Lg6_log=4594685411790997151, Lg7_log=4594499633228436036, ln2_hi_log=4604418534311723008, ln2_lo_log=4461442080421002358, two54_log=4850376798678024192, zero=0] [L60] COND TRUE hx < 0x00100000 VAL [Lg1_log=4604180019048437139, Lg2_log=4600877379321592324, Lg3_log=4598818590951641945, Lg4_log=4597174411056806063, Lg5_log=4595719342595441630, Lg6_log=4594685411790997151, Lg7_log=4594499633228436036, ln2_hi_log=4604418534311723008, ln2_lo_log=4461442080421002358, two54_log=4850376798678024192, zero=0] [L61] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L62] EXPR -two54_log [L62] EXPR -two54_log / zero [L62] return -two54_log / zero; [L152] double res = __ieee754_log(x); [L139] return x != x; VAL [Lg1_log=4604180019048437139, Lg2_log=4600877379321592324, Lg3_log=4598818590951641945, Lg4_log=4597174411056806063, Lg5_log=4595719342595441630, Lg6_log=4594685411790997151, Lg7_log=4594499633228436036, ln2_hi_log=4604418534311723008, ln2_lo_log=4461442080421002358, two54_log=4850376798678024192, zero=0] [L155] COND TRUE !isnan_double(res) [L156] reach_error() VAL [Lg1_log=4604180019048437139, Lg2_log=4600877379321592324, Lg3_log=4598818590951641945, Lg4_log=4597174411056806063, Lg5_log=4595719342595441630, Lg6_log=4594685411790997151, Lg7_log=4594499633228436036, ln2_hi_log=4604418534311723008, ln2_lo_log=4461442080421002358, two54_log=4850376798678024192, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 23.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 11.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 100 SDtfs, 43 SDslu, 90 SDs, 0 SdLazy, 44 SolverSat, 12 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 6.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 11.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 78 ConstructedInterpolants, 10 QuantifiedInterpolants, 6362 SizeOfPredicates, 12 NumberOfNonLiveVariables, 182 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...