./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0910a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2880296f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0910a.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 46393d2b09f76a2aebf7966ac49ef5fe23671a72 ................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0910a.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 46393d2b09f76a2aebf7966ac49ef5fe23671a72 .................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.2.0-2880296 [2020-12-02 16:04:02,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 16:04:02,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 16:04:02,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 16:04:02,318 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 16:04:02,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 16:04:02,329 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 16:04:02,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 16:04:02,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 16:04:02,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 16:04:02,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 16:04:02,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 16:04:02,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 16:04:02,361 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 16:04:02,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 16:04:02,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 16:04:02,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 16:04:02,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 16:04:02,375 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 16:04:02,380 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 16:04:02,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 16:04:02,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 16:04:02,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 16:04:02,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 16:04:02,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 16:04:02,401 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 16:04:02,402 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 16:04:02,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 16:04:02,405 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 16:04:02,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 16:04:02,406 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 16:04:02,407 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 16:04:02,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 16:04:02,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 16:04:02,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 16:04:02,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 16:04:02,414 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 16:04:02,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 16:04:02,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 16:04:02,417 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 16:04:02,418 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 16:04:02,419 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 16:04:02,465 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 16:04:02,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 16:04:02,468 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 16:04:02,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 16:04:02,469 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 16:04:02,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 16:04:02,469 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 16:04:02,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 16:04:02,470 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 16:04:02,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 16:04:02,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 16:04:02,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 16:04:02,471 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 16:04:02,471 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 16:04:02,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 16:04:02,472 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 16:04:02,472 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 16:04:02,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 16:04:02,472 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 16:04:02,473 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 16:04:02,473 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 16:04:02,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 16:04:02,474 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 16:04:02,474 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 16:04:02,474 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 16:04:02,474 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 16:04:02,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 16:04:02,475 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 16:04:02,475 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 16:04:02,475 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46393d2b09f76a2aebf7966ac49ef5fe23671a72 [2020-12-02 16:04:02,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 16:04:02,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 16:04:02,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 16:04:02,912 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 16:04:02,914 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 16:04:02,915 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0910a.c [2020-12-02 16:04:02,997 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f7d9d5fa/00e7f69686fc4223a7a258788d268d02/FLAG05ace0a6e [2020-12-02 16:04:03,623 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 16:04:03,625 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0910a.c [2020-12-02 16:04:03,636 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f7d9d5fa/00e7f69686fc4223a7a258788d268d02/FLAG05ace0a6e [2020-12-02 16:04:03,907 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f7d9d5fa/00e7f69686fc4223a7a258788d268d02 [2020-12-02 16:04:03,910 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 16:04:03,912 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 16:04:03,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 16:04:03,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 16:04:03,921 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 16:04:03,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:04:03" (1/1) ... [2020-12-02 16:04:03,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5541dbd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:04:03, skipping insertion in model container [2020-12-02 16:04:03,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:04:03" (1/1) ... [2020-12-02 16:04:03,935 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 16:04:03,959 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 16:04:04,137 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: conversion from bitvector to float not supported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.transformBitvectorToFloat(IntegerTranslation.java:919) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructUnaryExpression(ExpressionTranslation.java:141) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleUnaryArithmeticOperators(CExpressionTranslator.java:407) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2351) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:704) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1970) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1576) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1044) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1422) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3209) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2291) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:578) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:201) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-12-02 16:04:04,151 INFO L168 Benchmark]: Toolchain (without parser) took 236.92 ms. Allocated memory is still 48.2 MB. Free memory was 32.1 MB in the beginning and 23.8 MB in the end (delta: 8.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-02 16:04:04,154 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 39.8 MB. Free memory was 17.8 MB in the beginning and 17.8 MB in the end (delta: 31.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 16:04:04,158 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.73 ms. Allocated memory is still 48.2 MB. Free memory was 31.9 MB in the beginning and 23.8 MB in the end (delta: 8.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-02 16:04:04,164 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 39.8 MB. Free memory was 17.8 MB in the beginning and 17.8 MB in the end (delta: 31.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 233.73 ms. Allocated memory is still 48.2 MB. Free memory was 31.9 MB in the beginning and 23.8 MB in the end (delta: 8.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: conversion from bitvector to float not supported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: conversion from bitvector to float not supported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.transformBitvectorToFloat(IntegerTranslation.java:919) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-2880296 [2020-12-02 16:04:06,762 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 16:04:06,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 16:04:06,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 16:04:06,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 16:04:06,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 16:04:06,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 16:04:06,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 16:04:06,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 16:04:06,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 16:04:06,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 16:04:06,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 16:04:06,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 16:04:06,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 16:04:06,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 16:04:06,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 16:04:06,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 16:04:06,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 16:04:06,882 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 16:04:06,889 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 16:04:06,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 16:04:06,896 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 16:04:06,899 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 16:04:06,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 16:04:06,905 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 16:04:06,910 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 16:04:06,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 16:04:06,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 16:04:06,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 16:04:06,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 16:04:06,916 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 16:04:06,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 16:04:06,920 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 16:04:06,922 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 16:04:06,923 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 16:04:06,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 16:04:06,927 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 16:04:06,928 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 16:04:06,928 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 16:04:06,930 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 16:04:06,931 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 16:04:06,933 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 16:04:06,990 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 16:04:06,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 16:04:06,995 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 16:04:06,996 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 16:04:06,996 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 16:04:06,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 16:04:06,997 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 16:04:06,997 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 16:04:06,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 16:04:06,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 16:04:07,000 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 16:04:07,000 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 16:04:07,000 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 16:04:07,000 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 16:04:07,001 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 16:04:07,001 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 16:04:07,001 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 16:04:07,002 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 16:04:07,002 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 16:04:07,002 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 16:04:07,003 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 16:04:07,003 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 16:04:07,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 16:04:07,004 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 16:04:07,004 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 16:04:07,004 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 16:04:07,004 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 16:04:07,005 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-02 16:04:07,005 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 16:04:07,005 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 16:04:07,005 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 16:04:07,006 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46393d2b09f76a2aebf7966ac49ef5fe23671a72 [2020-12-02 16:04:07,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 16:04:07,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 16:04:07,513 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 16:04:07,515 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 16:04:07,516 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 16:04:07,517 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0910a.c [2020-12-02 16:04:07,590 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d92de34ab/7102fe2313c04edda6ca98e31a58c518/FLAGc0ff423d3 [2020-12-02 16:04:08,340 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 16:04:08,341 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0910a.c [2020-12-02 16:04:08,353 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d92de34ab/7102fe2313c04edda6ca98e31a58c518/FLAGc0ff423d3 [2020-12-02 16:04:08,659 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d92de34ab/7102fe2313c04edda6ca98e31a58c518 [2020-12-02 16:04:08,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 16:04:08,666 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 16:04:08,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 16:04:08,671 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 16:04:08,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 16:04:08,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:04:08" (1/1) ... [2020-12-02 16:04:08,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71b32d4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:04:08, skipping insertion in model container [2020-12-02 16:04:08,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:04:08" (1/1) ... [2020-12-02 16:04:08,689 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 16:04:08,723 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 16:04:08,995 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0910a.c[3092,3105] [2020-12-02 16:04:08,999 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 16:04:09,022 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 16:04:09,116 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0910a.c[3092,3105] [2020-12-02 16:04:09,120 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 16:04:09,202 INFO L217 MainTranslator]: Completed translation [2020-12-02 16:04:09,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:04:09 WrapperNode [2020-12-02 16:04:09,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 16:04:09,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 16:04:09,211 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 16:04:09,211 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 16:04:09,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:04:09" (1/1) ... [2020-12-02 16:04:09,243 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:04:09" (1/1) ... [2020-12-02 16:04:09,330 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 16:04:09,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 16:04:09,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 16:04:09,331 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 16:04:09,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:04:09" (1/1) ... [2020-12-02 16:04:09,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:04:09" (1/1) ... [2020-12-02 16:04:09,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:04:09" (1/1) ... [2020-12-02 16:04:09,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:04:09" (1/1) ... [2020-12-02 16:04:09,403 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:04:09" (1/1) ... [2020-12-02 16:04:09,410 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:04:09" (1/1) ... [2020-12-02 16:04:09,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:04:09" (1/1) ... [2020-12-02 16:04:09,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 16:04:09,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 16:04:09,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 16:04:09,423 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 16:04:09,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:04:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 16:04:09,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-12-02 16:04:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-02 16:04:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 16:04:09,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-12-02 16:04:09,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-02 16:04:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 16:04:09,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 16:04:09,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-02 16:04:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_FLOAT [2020-12-02 16:04:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-02 16:04:09,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 16:04:30,777 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 16:04:30,777 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-12-02 16:04:30,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:04:30 BoogieIcfgContainer [2020-12-02 16:04:30,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 16:04:30,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 16:04:30,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 16:04:30,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 16:04:30,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:04:08" (1/3) ... [2020-12-02 16:04:30,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b2e29d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:04:30, skipping insertion in model container [2020-12-02 16:04:30,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:04:09" (2/3) ... [2020-12-02 16:04:30,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b2e29d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:04:30, skipping insertion in model container [2020-12-02 16:04:30,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:04:30" (3/3) ... [2020-12-02 16:04:30,787 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0910a.c [2020-12-02 16:04:30,803 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 16:04:30,807 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 16:04:30,820 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 16:04:30,847 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 16:04:30,847 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 16:04:30,847 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 16:04:30,847 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 16:04:30,847 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 16:04:30,848 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 16:04:30,848 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 16:04:30,848 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 16:04:30,863 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-12-02 16:04:30,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-02 16:04:30,869 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 16:04:30,870 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 16:04:30,871 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 16:04:30,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 16:04:30,878 INFO L82 PathProgramCache]: Analyzing trace with hash -179144357, now seen corresponding path program 1 times [2020-12-02 16:04:30,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 16:04:30,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1128436610] [2020-12-02 16:04:30,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-02 16:04:31,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 16:04:31,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-02 16:04:31,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 16:04:31,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 16:04:31,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 16:04:31,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 16:04:31,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1128436610] [2020-12-02 16:04:31,746 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 16:04:31,746 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-02 16:04:31,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281163842] [2020-12-02 16:04:31,752 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 16:04:31,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 16:04:31,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 16:04:31,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 16:04:31,783 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-12-02 16:04:31,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 16:04:31,813 INFO L93 Difference]: Finished difference Result 64 states and 102 transitions. [2020-12-02 16:04:31,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 16:04:31,816 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-02 16:04:31,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 16:04:31,827 INFO L225 Difference]: With dead ends: 64 [2020-12-02 16:04:31,828 INFO L226 Difference]: Without dead ends: 30 [2020-12-02 16:04:31,832 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 16:04:31,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-12-02 16:04:31,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-12-02 16:04:31,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-02 16:04:31,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2020-12-02 16:04:31,883 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 11 [2020-12-02 16:04:31,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 16:04:31,884 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2020-12-02 16:04:31,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 16:04:31,884 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2020-12-02 16:04:31,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-02 16:04:31,885 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 16:04:31,886 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 16:04:32,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-02 16:04:32,087 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 16:04:32,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 16:04:32,089 INFO L82 PathProgramCache]: Analyzing trace with hash 574087680, now seen corresponding path program 1 times [2020-12-02 16:04:32,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 16:04:32,091 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [400687048] [2020-12-02 16:04:32,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-02 16:04:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 16:04:32,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-02 16:04:32,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 16:04:37,300 WARN L197 SmtUtils]: Spent 3.42 s on a formula simplification that was a NOOP. DAG size: 37 [2020-12-02 16:04:42,947 WARN L197 SmtUtils]: Spent 1.51 s on a formula simplification that was a NOOP. DAG size: 46 [2020-12-02 16:04:53,713 WARN L197 SmtUtils]: Spent 1.61 s on a formula simplification that was a NOOP. DAG size: 46 [2020-12-02 16:05:09,110 WARN L197 SmtUtils]: Spent 1.99 s on a formula simplification that was a NOOP. DAG size: 46 [2020-12-02 16:05:09,175 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 16:05:09,190 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-02 16:05:21,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 16:05:21,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 16:05:56,179 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start___ieee754_logf_#res_15| (_ BitVec 32)) (|v_ULTIMATE.start___ieee754_logf_#t~nondet22_6| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_logf_#t~nondet22_6|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_logf_#t~nondet22_6|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_logf_#t~nondet22_6|)))) (or (not (= .cse0 (fp.neg (fp ((_ extract 31 31) c_~two25_log~0) ((_ extract 30 23) c_~two25_log~0) ((_ extract 22 0) c_~two25_log~0))))) (not (= (fp.div c_~CRM .cse0 (fp ((_ extract 31 31) c_~zero_log~0) ((_ extract 30 23) c_~zero_log~0) ((_ extract 22 0) c_~zero_log~0))) (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_logf_#res_15|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_logf_#res_15|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_logf_#res_15|)))) (= (bvadd (bvand (_ bv2147483647 32) |v_ULTIMATE.start___ieee754_logf_#res_15|) (_ bv2155872256 32)) (_ bv0 32))))) is different from false [2020-12-02 16:05:56,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 16:05:56,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [400687048] [2020-12-02 16:05:56,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 16:05:56,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2020-12-02 16:05:56,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740139128] [2020-12-02 16:05:56,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-02 16:05:56,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 16:05:56,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-02 16:05:56,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=117, Unknown=14, NotChecked=22, Total=182 [2020-12-02 16:05:56,662 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 14 states. [2020-12-02 16:06:00,163 WARN L838 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_ULTIMATE.init_#t~nondet11_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_ULTIMATE.init_#t~nondet11_6|) ((_ extract 62 52) |v_ULTIMATE.start_ULTIMATE.init_#t~nondet11_6|) ((_ extract 51 0) |v_ULTIMATE.start_ULTIMATE.init_#t~nondet11_6|)))) (and (= ((_ to_fp 8 24) c_~CRM .cse0) (fp ((_ extract 31 31) c_~two25_log~0) ((_ extract 30 23) c_~two25_log~0) ((_ extract 22 0) c_~two25_log~0))) (= ((_ to_fp 11 53) c_~CRM 33554432.0) .cse0)))) (forall ((|v_ULTIMATE.start___ieee754_logf_#res_15| (_ BitVec 32)) (|v_ULTIMATE.start___ieee754_logf_#t~nondet22_6| (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_logf_#t~nondet22_6|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_logf_#t~nondet22_6|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_logf_#t~nondet22_6|)))) (or (not (= .cse1 (fp.neg (fp ((_ extract 31 31) c_~two25_log~0) ((_ extract 30 23) c_~two25_log~0) ((_ extract 22 0) c_~two25_log~0))))) (not (= (fp.div c_~CRM .cse1 (fp ((_ extract 31 31) c_~zero_log~0) ((_ extract 30 23) c_~zero_log~0) ((_ extract 22 0) c_~zero_log~0))) (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_logf_#res_15|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_logf_#res_15|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_logf_#res_15|)))) (= (bvadd (bvand (_ bv2147483647 32) |v_ULTIMATE.start___ieee754_logf_#res_15|) (_ bv2155872256 32)) (_ bv0 32))))) (exists ((|v_ULTIMATE.start_ULTIMATE.init_#t~nondet19_6| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_ULTIMATE.init_#t~nondet19_6|) ((_ extract 62 52) |v_ULTIMATE.start_ULTIMATE.init_#t~nondet19_6|) ((_ extract 51 0) |v_ULTIMATE.start_ULTIMATE.init_#t~nondet19_6|)))) (and (= ((_ to_fp 8 24) c_~CRM .cse2) (fp ((_ extract 31 31) c_~zero_log~0) ((_ extract 30 23) c_~zero_log~0) ((_ extract 22 0) c_~zero_log~0))) (= (_ +zero 11 53) .cse2))))) is different from false [2020-12-02 16:06:02,219 WARN L860 $PredicateComparison]: unable to prove that (and (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_ULTIMATE.init_#t~nondet11_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_ULTIMATE.init_#t~nondet11_6|) ((_ extract 62 52) |v_ULTIMATE.start_ULTIMATE.init_#t~nondet11_6|) ((_ extract 51 0) |v_ULTIMATE.start_ULTIMATE.init_#t~nondet11_6|)))) (and (= ((_ to_fp 8 24) c_~CRM .cse0) (fp ((_ extract 31 31) c_~two25_log~0) ((_ extract 30 23) c_~two25_log~0) ((_ extract 22 0) c_~two25_log~0))) (= ((_ to_fp 11 53) c_~CRM 33554432.0) .cse0)))) (forall ((|v_ULTIMATE.start___ieee754_logf_#res_15| (_ BitVec 32)) (|v_ULTIMATE.start___ieee754_logf_#t~nondet22_6| (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_logf_#t~nondet22_6|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_logf_#t~nondet22_6|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_logf_#t~nondet22_6|)))) (or (not (= .cse1 (fp.neg (fp ((_ extract 31 31) c_~two25_log~0) ((_ extract 30 23) c_~two25_log~0) ((_ extract 22 0) c_~two25_log~0))))) (not (= (fp.div c_~CRM .cse1 (fp ((_ extract 31 31) c_~zero_log~0) ((_ extract 30 23) c_~zero_log~0) ((_ extract 22 0) c_~zero_log~0))) (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_logf_#res_15|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_logf_#res_15|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_logf_#res_15|)))) (= (bvadd (bvand (_ bv2147483647 32) |v_ULTIMATE.start___ieee754_logf_#res_15|) (_ bv2155872256 32)) (_ bv0 32))))) (exists ((|v_ULTIMATE.start_ULTIMATE.init_#t~nondet19_6| (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_ULTIMATE.init_#t~nondet19_6|) ((_ extract 62 52) |v_ULTIMATE.start_ULTIMATE.init_#t~nondet19_6|) ((_ extract 51 0) |v_ULTIMATE.start_ULTIMATE.init_#t~nondet19_6|)))) (and (= ((_ to_fp 8 24) c_~CRM .cse2) (fp ((_ extract 31 31) c_~zero_log~0) ((_ extract 30 23) c_~zero_log~0) ((_ extract 22 0) c_~zero_log~0))) (= (_ +zero 11 53) .cse2))))) is different from true [2020-12-02 16:06:29,393 WARN L197 SmtUtils]: Spent 7.53 s on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2020-12-02 16:06:50,242 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-12-02 16:07:34,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 16:07:34,676 INFO L93 Difference]: Finished difference Result 38 states and 47 transitions. [2020-12-02 16:07:34,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-02 16:07:34,700 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 13 [2020-12-02 16:07:34,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 16:07:34,701 INFO L225 Difference]: With dead ends: 38 [2020-12-02 16:07:34,701 INFO L226 Difference]: Without dead ends: 30 [2020-12-02 16:07:34,702 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 118.2s TimeCoverageRelationStatistics Valid=41, Invalid=155, Unknown=22, NotChecked=54, Total=272 [2020-12-02 16:07:34,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-12-02 16:07:34,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-12-02 16:07:34,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-12-02 16:07:34,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2020-12-02 16:07:34,709 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 13 [2020-12-02 16:07:34,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 16:07:34,709 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2020-12-02 16:07:34,709 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-02 16:07:34,710 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2020-12-02 16:07:34,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-02 16:07:34,710 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 16:07:34,711 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 16:07:34,911 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-02 16:07:34,912 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 16:07:34,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 16:07:34,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1681903329, now seen corresponding path program 1 times [2020-12-02 16:07:34,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 16:07:34,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2120098874] [2020-12-02 16:07:34,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-02 16:07:35,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 16:07:35,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-02 16:07:35,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 16:07:35,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 16:07:35,903 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 16:07:36,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 16:07:36,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2120098874] [2020-12-02 16:07:36,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 16:07:36,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-12-02 16:07:36,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646105020] [2020-12-02 16:07:36,300 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-02 16:07:36,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 16:07:36,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-02 16:07:36,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-02 16:07:36,307 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. Second operand 6 states. [2020-12-02 16:07:36,549 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2020-12-02 16:07:36,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 16:07:36,555 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2020-12-02 16:07:36,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-02 16:07:36,555 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-02 16:07:36,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 16:07:36,556 INFO L225 Difference]: With dead ends: 30 [2020-12-02 16:07:36,556 INFO L226 Difference]: Without dead ends: 0 [2020-12-02 16:07:36,557 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-02 16:07:36,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-02 16:07:36,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-02 16:07:36,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-02 16:07:36,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-02 16:07:36,559 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-12-02 16:07:36,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 16:07:36,560 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-02 16:07:36,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-02 16:07:36,560 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-02 16:07:36,560 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-02 16:07:36,761 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-02 16:07:36,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-02 16:07:38,735 WARN L197 SmtUtils]: Spent 1.93 s on a formula simplification that was a NOOP. DAG size: 46 [2020-12-02 16:07:49,533 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-12-02 16:07:49,535 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.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter(HoareAnnotationComposer.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.(HoareAnnotationComposer.java:105) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeCFGHoareAnnotation(BasicCegarLoop.java:1052) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) ... 36 more [2020-12-02 16:07:49,541 INFO L168 Benchmark]: Toolchain (without parser) took 220872.67 ms. Allocated memory was 41.9 MB in the beginning and 60.8 MB in the end (delta: 18.9 MB). Free memory was 23.2 MB in the beginning and 29.8 MB in the end (delta: -6.6 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. [2020-12-02 16:07:49,542 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 41.9 MB. Free memory is still 19.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 16:07:49,543 INFO L168 Benchmark]: CACSL2BoogieTranslator took 539.79 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 23.0 MB in the beginning and 32.8 MB in the end (delta: -9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-02 16:07:49,544 INFO L168 Benchmark]: Boogie Procedure Inliner took 119.49 ms. Allocated memory is still 50.3 MB. Free memory was 32.6 MB in the beginning and 29.3 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 16:07:49,545 INFO L168 Benchmark]: Boogie Preprocessor took 90.43 ms. Allocated memory is still 50.3 MB. Free memory was 29.3 MB in the beginning and 26.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-02 16:07:49,546 INFO L168 Benchmark]: RCFGBuilder took 21356.33 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.7 MB in the beginning and 40.5 MB in the end (delta: -13.8 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. [2020-12-02 16:07:49,546 INFO L168 Benchmark]: TraceAbstraction took 198757.60 ms. Allocated memory is still 60.8 MB. Free memory was 40.1 MB in the beginning and 29.8 MB in the end (delta: 10.3 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2020-12-02 16:07:49,551 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 41.9 MB. Free memory is still 19.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 539.79 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 23.0 MB in the beginning and 32.8 MB in the end (delta: -9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 119.49 ms. Allocated memory is still 50.3 MB. Free memory was 32.6 MB in the beginning and 29.3 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 90.43 ms. Allocated memory is still 50.3 MB. Free memory was 29.3 MB in the beginning and 26.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 21356.33 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.7 MB in the beginning and 40.5 MB in the end (delta: -13.8 MB). Peak memory consumption was 15.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 198757.60 ms. Allocated memory is still 60.8 MB. Free memory was 40.1 MB in the beginning and 29.8 MB in the end (delta: 10.3 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...