./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-benchs/rlim_invariant.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-benchs/rlim_invariant.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 f31567337cf0142dabf0ae57cb0ae0bc5a3f732e .................................................................................................................................................................... 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-benchs/rlim_invariant.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 f31567337cf0142dabf0ae57cb0ae0bc5a3f732e ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 14:42:25,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 14:42:25,846 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 14:42:25,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 14:42:25,888 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 14:42:25,893 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 14:42:25,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 14:42:25,905 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 14:42:25,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 14:42:25,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 14:42:25,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 14:42:25,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 14:42:25,923 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 14:42:25,925 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 14:42:25,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 14:42:25,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 14:42:25,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 14:42:25,937 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 14:42:25,942 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 14:42:25,949 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 14:42:25,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 14:42:25,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 14:42:25,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 14:42:25,964 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 14:42:25,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 14:42:25,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 14:42:25,972 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 14:42:25,974 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 14:42:25,976 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 14:42:25,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 14:42:25,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 14:42:25,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 14:42:25,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 14:42:25,983 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 14:42:25,985 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 14:42:25,985 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 14:42:25,986 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 14:42:25,987 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 14:42:25,987 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 14:42:25,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 14:42:25,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 14:42:25,992 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 14:42:26,049 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 14:42:26,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 14:42:26,051 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 14:42:26,052 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 14:42:26,052 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 14:42:26,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 14:42:26,053 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 14:42:26,053 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 14:42:26,053 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 14:42:26,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 14:42:26,054 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 14:42:26,054 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 14:42:26,054 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 14:42:26,055 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 14:42:26,055 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 14:42:26,055 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 14:42:26,055 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 14:42:26,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 14:42:26,056 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 14:42:26,056 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 14:42:26,056 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 14:42:26,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 14:42:26,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 14:42:26,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 14:42:26,057 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 14:42:26,058 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 14:42:26,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 14:42:26,058 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 14:42:26,058 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 14:42:26,059 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f31567337cf0142dabf0ae57cb0ae0bc5a3f732e [2020-12-02 14:42:26,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 14:42:26,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 14:42:26,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 14:42:26,499 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 14:42:26,500 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 14:42:26,502 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/rlim_invariant.c [2020-12-02 14:42:26,604 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dcc9e594/6f629bb63db347d68f5627622bb0b283/FLAG348b83257 [2020-12-02 14:42:27,227 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 14:42:27,228 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/rlim_invariant.c [2020-12-02 14:42:27,236 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dcc9e594/6f629bb63db347d68f5627622bb0b283/FLAG348b83257 [2020-12-02 14:42:27,612 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dcc9e594/6f629bb63db347d68f5627622bb0b283 [2020-12-02 14:42:27,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 14:42:27,619 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 14:42:27,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 14:42:27,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 14:42:27,629 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 14:42:27,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:42:27" (1/1) ... [2020-12-02 14:42:27,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d76b090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:27, skipping insertion in model container [2020-12-02 14:42:27,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:42:27" (1/1) ... [2020-12-02 14:42:27,646 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 14:42:27,672 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 14:42:27,911 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-benchs/rlim_invariant.c[451,464] [2020-12-02 14:42:27,937 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:705) 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.visit(CHandler.java:1568) 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.handleLoops(CHandler.java:3367) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1393) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:223) 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 14:42:27,949 INFO L168 Benchmark]: Toolchain (without parser) took 326.26 ms. Allocated memory is still 50.3 MB. Free memory was 27.0 MB in the beginning and 32.1 MB in the end (delta: -5.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-12-02 14:42:27,951 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 50.3 MB. Free memory was 35.2 MB in the beginning and 35.1 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:42:27,955 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.51 ms. Allocated memory is still 50.3 MB. Free memory was 26.9 MB in the beginning and 32.1 MB in the end (delta: -5.2 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-12-02 14:42:27,959 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 50.3 MB. Free memory was 35.2 MB in the beginning and 35.1 MB in the end (delta: 39.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 319.51 ms. Allocated memory is still 50.3 MB. Free memory was 26.9 MB in the beginning and 32.1 MB in the end (delta: -5.2 MB). Peak memory consumption was 7.7 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 14:42:30,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 14:42:30,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 14:42:30,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 14:42:30,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 14:42:30,404 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 14:42:30,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 14:42:30,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 14:42:30,412 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 14:42:30,413 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 14:42:30,414 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 14:42:30,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 14:42:30,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 14:42:30,418 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 14:42:30,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 14:42:30,421 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 14:42:30,423 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 14:42:30,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 14:42:30,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 14:42:30,429 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 14:42:30,431 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 14:42:30,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 14:42:30,435 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 14:42:30,436 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 14:42:30,443 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 14:42:30,447 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 14:42:30,448 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 14:42:30,450 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 14:42:30,452 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 14:42:30,454 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 14:42:30,455 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 14:42:30,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 14:42:30,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 14:42:30,462 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 14:42:30,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 14:42:30,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 14:42:30,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 14:42:30,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 14:42:30,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 14:42:30,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 14:42:30,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 14:42:30,474 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 14:42:30,528 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 14:42:30,528 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 14:42:30,532 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 14:42:30,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 14:42:30,533 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 14:42:30,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 14:42:30,534 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 14:42:30,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 14:42:30,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 14:42:30,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 14:42:30,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 14:42:30,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 14:42:30,537 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 14:42:30,537 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 14:42:30,537 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 14:42:30,537 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 14:42:30,538 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 14:42:30,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 14:42:30,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 14:42:30,539 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 14:42:30,539 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 14:42:30,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 14:42:30,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 14:42:30,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 14:42:30,540 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 14:42:30,540 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 14:42:30,541 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 14:42:30,541 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-02 14:42:30,541 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 14:42:30,542 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 14:42:30,542 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 14:42:30,542 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f31567337cf0142dabf0ae57cb0ae0bc5a3f732e [2020-12-02 14:42:31,015 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 14:42:31,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 14:42:31,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 14:42:31,075 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 14:42:31,076 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 14:42:31,077 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/rlim_invariant.c [2020-12-02 14:42:31,169 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e6b5e1ea/b58657b5b09f4aaf90e587909eca1ef8/FLAG8f6aa0f6b [2020-12-02 14:42:31,859 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 14:42:31,860 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/rlim_invariant.c [2020-12-02 14:42:31,868 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e6b5e1ea/b58657b5b09f4aaf90e587909eca1ef8/FLAG8f6aa0f6b [2020-12-02 14:42:32,235 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e6b5e1ea/b58657b5b09f4aaf90e587909eca1ef8 [2020-12-02 14:42:32,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 14:42:32,240 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 14:42:32,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 14:42:32,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 14:42:32,252 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 14:42:32,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:42:32" (1/1) ... [2020-12-02 14:42:32,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b162b94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:32, skipping insertion in model container [2020-12-02 14:42:32,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:42:32" (1/1) ... [2020-12-02 14:42:32,269 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 14:42:32,291 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 14:42:32,485 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-benchs/rlim_invariant.c[451,464] [2020-12-02 14:42:32,509 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:42:32,528 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 14:42:32,544 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-benchs/rlim_invariant.c[451,464] [2020-12-02 14:42:32,554 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 14:42:32,576 INFO L217 MainTranslator]: Completed translation [2020-12-02 14:42:32,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:32 WrapperNode [2020-12-02 14:42:32,577 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 14:42:32,579 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 14:42:32,579 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 14:42:32,579 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 14:42:32,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:32" (1/1) ... [2020-12-02 14:42:32,602 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:32" (1/1) ... [2020-12-02 14:42:32,630 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 14:42:32,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 14:42:32,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 14:42:32,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 14:42:32,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:32" (1/1) ... [2020-12-02 14:42:32,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:32" (1/1) ... [2020-12-02 14:42:32,648 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:32" (1/1) ... [2020-12-02 14:42:32,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:32" (1/1) ... [2020-12-02 14:42:32,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:32" (1/1) ... [2020-12-02 14:42:32,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:32" (1/1) ... [2020-12-02 14:42:32,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:32" (1/1) ... [2020-12-02 14:42:32,671 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 14:42:32,672 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 14:42:32,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 14:42:32,673 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 14:42:32,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:32" (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 14:42:32,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-02 14:42:32,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 14:42:32,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 14:42:32,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 14:42:32,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_FLOAT [2020-12-02 14:42:33,687 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 14:42:33,688 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-12-02 14:42:33,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:42:33 BoogieIcfgContainer [2020-12-02 14:42:33,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 14:42:33,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 14:42:33,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 14:42:33,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 14:42:33,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:42:32" (1/3) ... [2020-12-02 14:42:33,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dd08ffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:42:33, skipping insertion in model container [2020-12-02 14:42:33,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:42:32" (2/3) ... [2020-12-02 14:42:33,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dd08ffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:42:33, skipping insertion in model container [2020-12-02 14:42:33,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:42:33" (3/3) ... [2020-12-02 14:42:33,701 INFO L111 eAbstractionObserver]: Analyzing ICFG rlim_invariant.c [2020-12-02 14:42:33,718 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 14:42:33,722 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 14:42:33,733 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 14:42:33,769 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 14:42:33,769 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 14:42:33,769 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 14:42:33,770 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 14:42:33,770 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 14:42:33,770 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 14:42:33,770 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 14:42:33,770 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 14:42:33,789 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-12-02 14:42:33,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-02 14:42:33,806 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 14:42:33,807 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 14:42:33,808 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 14:42:33,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 14:42:33,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1887601658, now seen corresponding path program 1 times [2020-12-02 14:42:33,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 14:42:33,843 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1020800823] [2020-12-02 14:42:33,843 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 14:42:34,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 14:42:34,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-02 14:42:34,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 14:42:34,235 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 14:42:34,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 14:42:34,284 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 14:42:34,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1020800823] [2020-12-02 14:42:34,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 14:42:34,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-02 14:42:34,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331394825] [2020-12-02 14:42:34,305 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 14:42:34,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 14:42:34,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 14:42:34,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 14:42:34,326 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2020-12-02 14:42:34,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 14:42:34,347 INFO L93 Difference]: Finished difference Result 48 states and 66 transitions. [2020-12-02 14:42:34,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 14:42:34,349 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2020-12-02 14:42:34,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 14:42:34,360 INFO L225 Difference]: With dead ends: 48 [2020-12-02 14:42:34,360 INFO L226 Difference]: Without dead ends: 21 [2020-12-02 14:42:34,364 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 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 14:42:34,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-12-02 14:42:34,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-12-02 14:42:34,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-12-02 14:42:34,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2020-12-02 14:42:34,403 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 26 transitions. Word has length 17 [2020-12-02 14:42:34,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 14:42:34,404 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 26 transitions. [2020-12-02 14:42:34,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 14:42:34,404 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2020-12-02 14:42:34,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-02 14:42:34,405 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 14:42:34,405 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 14:42:34,620 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-02 14:42:34,620 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 14:42:34,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 14:42:34,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1856184450, now seen corresponding path program 1 times [2020-12-02 14:42:34,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 14:42:34,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1716245498] [2020-12-02 14:42:34,624 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 14:42:34,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 14:42:34,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-02 14:42:34,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 14:42:34,915 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 14:42:35,682 WARN L197 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-12-02 14:42:36,123 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 14:42:36,129 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 14:42:36,131 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-02 14:42:36,237 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 14:42:36,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 14:42:37,881 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-12-02 14:42:40,405 WARN L197 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-12-02 14:42:44,289 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 14:42:44,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1716245498] [2020-12-02 14:42:44,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 14:42:44,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2020-12-02 14:42:44,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148168999] [2020-12-02 14:42:44,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-12-02 14:42:44,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 14:42:44,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-12-02 14:42:44,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2020-12-02 14:42:44,296 INFO L87 Difference]: Start difference. First operand 21 states and 26 transitions. Second operand 16 states. [2020-12-02 14:42:48,654 WARN L197 SmtUtils]: Spent 933.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 36 [2020-12-02 14:42:50,946 WARN L197 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-12-02 14:42:53,505 WARN L197 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 64 DAG size of output: 37 [2020-12-02 14:42:56,308 WARN L197 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 68 DAG size of output: 41 [2020-12-02 14:42:58,350 WARN L197 SmtUtils]: Spent 911.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-12-02 14:43:00,296 WARN L197 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 66 DAG size of output: 39 [2020-12-02 14:43:02,377 WARN L197 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 67 DAG size of output: 40 [2020-12-02 14:43:03,985 WARN L197 SmtUtils]: Spent 580.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-12-02 14:43:05,541 WARN L197 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-12-02 14:43:07,522 WARN L197 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-12-02 14:43:08,937 WARN L197 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-12-02 14:43:13,259 WARN L197 SmtUtils]: Spent 1.56 s on a formula simplification that was a NOOP. DAG size: 68 [2020-12-02 14:43:15,815 WARN L197 SmtUtils]: Spent 1.38 s on a formula simplification that was a NOOP. DAG size: 67 [2020-12-02 14:43:19,143 WARN L197 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-12-02 14:43:22,266 WARN L197 SmtUtils]: Spent 747.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-12-02 14:43:23,484 WARN L197 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-12-02 14:43:25,902 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-12-02 14:43:28,598 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-12-02 14:43:31,794 WARN L197 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-12-02 14:43:33,745 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2020-12-02 14:43:37,394 WARN L197 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-12-02 14:43:42,778 WARN L197 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-12-02 14:43:44,906 WARN L197 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2020-12-02 14:43:48,954 WARN L197 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2020-12-02 14:43:51,750 WARN L197 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-12-02 14:43:52,861 WARN L197 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2020-12-02 14:43:56,998 WARN L197 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-12-02 14:43:59,766 WARN L197 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-12-02 14:44:03,591 WARN L197 SmtUtils]: Spent 845.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-12-02 14:44:05,690 WARN L197 SmtUtils]: Spent 693.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-12-02 14:44:08,916 WARN L197 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-12-02 14:44:10,281 WARN L197 SmtUtils]: Spent 515.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-12-02 14:44:10,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 14:44:10,309 INFO L93 Difference]: Finished difference Result 164 states and 200 transitions. [2020-12-02 14:44:10,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2020-12-02 14:44:10,313 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 17 [2020-12-02 14:44:10,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 14:44:10,318 INFO L225 Difference]: With dead ends: 164 [2020-12-02 14:44:10,319 INFO L226 Difference]: Without dead ends: 162 [2020-12-02 14:44:10,327 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 16 SyntacticMatches, 3 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1028 ImplicationChecksByTransitivity, 64.6s TimeCoverageRelationStatistics Valid=716, Invalid=2706, Unknown=0, NotChecked=0, Total=3422 [2020-12-02 14:44:10,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-12-02 14:44:10,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 39. [2020-12-02 14:44:10,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-12-02 14:44:10,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2020-12-02 14:44:10,358 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 17 [2020-12-02 14:44:10,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 14:44:10,358 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2020-12-02 14:44:10,358 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-12-02 14:44:10,359 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2020-12-02 14:44:10,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-02 14:44:10,360 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 14:44:10,361 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 14:44:10,561 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-02 14:44:10,562 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 14:44:10,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 14:44:10,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1856244032, now seen corresponding path program 1 times [2020-12-02 14:44:10,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 14:44:10,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [934864599] [2020-12-02 14:44:10,565 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 14:44:10,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 14:44:10,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-02 14:44:10,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 14:44:10,798 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 14:44:10,971 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-12-02 14:44:10,980 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 14:44:11,247 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-12-02 14:44:11,273 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 14:44:11,585 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-12-02 14:44:12,347 WARN L197 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-12-02 14:44:12,359 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 14:44:12,361 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 14:44:12,363 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 9 disjuncts [2020-12-02 14:44:12,433 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 14:44:12,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 14:44:13,965 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-12-02 14:44:16,756 WARN L197 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-12-02 14:44:16,776 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-12-02 14:44:16,777 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-02 14:44:17,989 WARN L197 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-12-02 14:44:23,072 WARN L197 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-12-02 14:44:32,606 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 14:44:32,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [934864599] [2020-12-02 14:44:32,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 14:44:32,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2020-12-02 14:44:32,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073907884] [2020-12-02 14:44:32,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-02 14:44:32,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 14:44:32,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-02 14:44:32,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=225, Unknown=3, NotChecked=0, Total=306 [2020-12-02 14:44:32,609 INFO L87 Difference]: Start difference. First operand 39 states and 49 transitions. Second operand 18 states. [2020-12-02 14:44:35,393 WARN L197 SmtUtils]: Spent 737.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-12-02 14:44:36,901 WARN L197 SmtUtils]: Spent 853.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2020-12-02 14:44:39,746 WARN L197 SmtUtils]: Spent 1.89 s on a formula simplification that was a NOOP. DAG size: 67 [2020-12-02 14:44:40,861 WARN L197 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 43 [2020-12-02 14:44:42,983 WARN L197 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-12-02 14:44:46,379 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-12-02 14:44:49,192 WARN L197 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 75 DAG size of output: 47 [2020-12-02 14:45:07,012 WARN L197 SmtUtils]: Spent 2.57 s on a formula simplification that was a NOOP. DAG size: 50 [2020-12-02 14:45:09,766 WARN L197 SmtUtils]: Spent 2.38 s on a formula simplification. DAG size of input: 76 DAG size of output: 48 [2020-12-02 14:45:24,260 WARN L197 SmtUtils]: Spent 6.01 s on a formula simplification that was a NOOP. DAG size: 91 [2020-12-02 14:45:46,168 WARN L197 SmtUtils]: Spent 2.61 s on a formula simplification that was a NOOP. DAG size: 51 [2020-12-02 14:46:04,153 WARN L197 SmtUtils]: Spent 7.34 s on a formula simplification that was a NOOP. DAG size: 92 [2020-12-02 14:46:30,329 WARN L197 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2020-12-02 14:46:50,897 WARN L197 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-12-02 14:48:22,718 WARN L197 SmtUtils]: Spent 1.44 s on a formula simplification that was a NOOP. DAG size: 74 [2020-12-02 14:49:40,559 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-12-02 14:49:40,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-12-02 14:49:40,762 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-02 14:49:40,763 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.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:621) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:120) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) 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.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:360) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:388) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:281) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:78) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1064) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:966) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:187) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:743) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:674) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:138) 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) ... 54 more [2020-12-02 14:49:40,770 INFO L168 Benchmark]: Toolchain (without parser) took 428529.90 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 27.0 MB in the beginning and 32.0 MB in the end (delta: -5.0 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2020-12-02 14:49:40,771 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 50.3 MB. Free memory was 31.7 MB in the beginning and 31.6 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 14:49:40,772 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.54 ms. Allocated memory is still 50.3 MB. Free memory was 26.8 MB in the beginning and 27.3 MB in the end (delta: -463.5 kB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2020-12-02 14:49:40,773 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.78 ms. Allocated memory is still 50.3 MB. Free memory was 27.3 MB in the beginning and 25.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-02 14:49:40,774 INFO L168 Benchmark]: Boogie Preprocessor took 39.96 ms. Allocated memory is still 50.3 MB. Free memory was 25.5 MB in the beginning and 23.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 14:49:40,775 INFO L168 Benchmark]: RCFGBuilder took 1018.27 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 23.9 MB in the beginning and 32.3 MB in the end (delta: -8.4 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. [2020-12-02 14:49:40,776 INFO L168 Benchmark]: TraceAbstraction took 427077.05 ms. Allocated memory is still 62.9 MB. Free memory was 32.1 MB in the beginning and 32.0 MB in the end (delta: 27.7 kB). Peak memory consumption was 287.5 kB. Max. memory is 16.1 GB. [2020-12-02 14:49:40,780 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 50.3 MB. Free memory was 31.7 MB in the beginning and 31.6 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 335.54 ms. Allocated memory is still 50.3 MB. Free memory was 26.8 MB in the beginning and 27.3 MB in the end (delta: -463.5 kB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.78 ms. Allocated memory is still 50.3 MB. Free memory was 27.3 MB in the beginning and 25.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.96 ms. Allocated memory is still 50.3 MB. Free memory was 25.5 MB in the beginning and 23.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1018.27 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 23.9 MB in the beginning and 32.3 MB in the end (delta: -8.4 MB). Peak memory consumption was 8.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 427077.05 ms. Allocated memory is still 62.9 MB. Free memory was 32.1 MB in the beginning and 32.0 MB in the end (delta: 27.7 kB). Peak memory consumption was 287.5 kB. 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...