./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0960b.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_0960b.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 c285e562d9f6861063d00fb52b20aadb4fe9461b ................................................................................................................................................................. 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_0960b.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 c285e562d9f6861063d00fb52b20aadb4fe9461b ................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.2.0-2880296 [2020-12-02 16:07:18,972 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 16:07:18,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 16:07:19,032 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 16:07:19,033 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 16:07:19,038 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 16:07:19,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 16:07:19,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 16:07:19,054 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 16:07:19,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 16:07:19,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 16:07:19,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 16:07:19,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 16:07:19,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 16:07:19,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 16:07:19,071 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 16:07:19,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 16:07:19,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 16:07:19,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 16:07:19,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 16:07:19,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 16:07:19,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 16:07:19,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 16:07:19,095 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 16:07:19,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 16:07:19,103 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 16:07:19,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 16:07:19,106 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 16:07:19,107 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 16:07:19,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 16:07:19,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 16:07:19,110 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 16:07:19,112 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 16:07:19,114 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 16:07:19,123 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 16:07:19,124 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 16:07:19,128 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 16:07:19,128 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 16:07:19,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 16:07:19,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 16:07:19,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 16:07:19,133 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 16:07:19,192 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 16:07:19,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 16:07:19,197 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 16:07:19,197 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 16:07:19,197 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 16:07:19,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 16:07:19,198 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 16:07:19,198 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 16:07:19,199 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 16:07:19,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 16:07:19,200 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 16:07:19,201 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 16:07:19,201 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 16:07:19,201 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 16:07:19,201 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 16:07:19,202 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 16:07:19,202 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 16:07:19,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 16:07:19,202 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 16:07:19,203 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 16:07:19,203 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 16:07:19,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 16:07:19,204 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 16:07:19,204 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 16:07:19,204 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 16:07:19,204 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 16:07:19,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 16:07:19,205 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 16:07:19,205 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 16:07:19,205 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c285e562d9f6861063d00fb52b20aadb4fe9461b [2020-12-02 16:07:19,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 16:07:19,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 16:07:19,640 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 16:07:19,641 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 16:07:19,643 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 16:07:19,644 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0960b.c [2020-12-02 16:07:19,728 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c9c81232/31d75253c0ce45aba81f0a2c8b59de17/FLAGa3aecd83a [2020-12-02 16:07:20,339 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 16:07:20,340 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0960b.c [2020-12-02 16:07:20,354 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c9c81232/31d75253c0ce45aba81f0a2c8b59de17/FLAGa3aecd83a [2020-12-02 16:07:20,702 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c9c81232/31d75253c0ce45aba81f0a2c8b59de17 [2020-12-02 16:07:20,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 16:07:20,711 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 16:07:20,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 16:07:20,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 16:07:20,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 16:07:20,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:07:20" (1/1) ... [2020-12-02 16:07:20,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@414e40eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:20, skipping insertion in model container [2020-12-02 16:07:20,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:07:20" (1/1) ... [2020-12-02 16:07:20,762 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 16:07:20,840 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 16:07:21,010 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: conversion from bitvector to float not supported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.transformBitvectorToFloat(IntegerTranslation.java:919) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructUnaryExpression(ExpressionTranslation.java:141) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleUnaryArithmeticOperators(CExpressionTranslator.java:407) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2351) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:704) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleReturnStatement(FunctionHandler.java:540) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1970) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:193) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1576) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1044) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1422) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3209) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2291) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:578) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:201) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-12-02 16:07:21,016 INFO L168 Benchmark]: Toolchain (without parser) took 304.76 ms. Allocated memory is still 44.0 MB. Free memory was 21.9 MB in the beginning and 22.8 MB in the end (delta: -870.3 kB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-12-02 16:07:21,017 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 44.0 MB. Free memory was 26.3 MB in the beginning and 26.3 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 16:07:21,018 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.76 ms. Allocated memory is still 44.0 MB. Free memory was 21.8 MB in the beginning and 22.8 MB in the end (delta: -1.1 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-12-02 16:07:21,021 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 44.0 MB. Free memory was 26.3 MB in the beginning and 26.3 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 298.76 ms. Allocated memory is still 44.0 MB. Free memory was 21.8 MB in the beginning and 22.8 MB in the end (delta: -1.1 MB). Peak memory consumption was 3.3 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 16:07:23,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 16:07:23,454 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 16:07:23,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 16:07:23,489 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 16:07:23,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 16:07:23,492 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 16:07:23,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 16:07:23,497 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 16:07:23,499 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 16:07:23,500 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 16:07:23,502 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 16:07:23,502 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 16:07:23,504 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 16:07:23,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 16:07:23,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 16:07:23,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 16:07:23,510 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 16:07:23,512 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 16:07:23,514 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 16:07:23,516 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 16:07:23,518 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 16:07:23,520 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 16:07:23,521 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 16:07:23,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 16:07:23,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 16:07:23,525 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 16:07:23,527 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 16:07:23,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 16:07:23,529 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 16:07:23,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 16:07:23,530 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 16:07:23,532 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 16:07:23,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 16:07:23,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 16:07:23,535 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 16:07:23,536 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 16:07:23,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 16:07:23,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 16:07:23,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 16:07:23,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 16:07:23,541 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 16:07:23,569 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 16:07:23,569 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 16:07:23,571 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 16:07:23,572 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 16:07:23,572 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 16:07:23,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 16:07:23,573 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 16:07:23,573 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 16:07:23,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 16:07:23,574 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 16:07:23,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 16:07:23,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 16:07:23,576 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 16:07:23,577 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 16:07:23,577 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 16:07:23,577 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 16:07:23,578 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 16:07:23,578 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 16:07:23,580 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 16:07:23,581 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 16:07:23,581 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 16:07:23,582 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 16:07:23,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 16:07:23,582 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 16:07:23,582 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 16:07:23,583 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 16:07:23,583 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 16:07:23,583 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-02 16:07:23,584 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 16:07:23,584 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 16:07:23,584 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 16:07:23,585 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c285e562d9f6861063d00fb52b20aadb4fe9461b [2020-12-02 16:07:24,086 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 16:07:24,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 16:07:24,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 16:07:24,131 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 16:07:24,132 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 16:07:24,133 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0960b.c [2020-12-02 16:07:24,227 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed1744367/821282e4445f46bebb8cb40671bf495c/FLAGde64fd4b5 [2020-12-02 16:07:24,967 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 16:07:24,968 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0960b.c [2020-12-02 16:07:24,981 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed1744367/821282e4445f46bebb8cb40671bf495c/FLAGde64fd4b5 [2020-12-02 16:07:25,298 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed1744367/821282e4445f46bebb8cb40671bf495c [2020-12-02 16:07:25,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 16:07:25,303 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 16:07:25,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 16:07:25,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 16:07:25,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 16:07:25,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:07:25" (1/1) ... [2020-12-02 16:07:25,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3996bb99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:25, skipping insertion in model container [2020-12-02 16:07:25,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:07:25" (1/1) ... [2020-12-02 16:07:25,336 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 16:07:25,375 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 16:07:25,650 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_0960b.c[4186,4199] [2020-12-02 16:07:25,654 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 16:07:25,690 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 16:07:25,841 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_0960b.c[4186,4199] [2020-12-02 16:07:25,845 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 16:07:25,880 INFO L217 MainTranslator]: Completed translation [2020-12-02 16:07:25,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:25 WrapperNode [2020-12-02 16:07:25,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 16:07:25,882 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 16:07:25,883 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 16:07:25,883 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 16:07:25,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:25" (1/1) ... [2020-12-02 16:07:25,917 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:25" (1/1) ... [2020-12-02 16:07:25,987 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 16:07:25,988 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 16:07:25,988 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 16:07:25,989 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 16:07:26,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:25" (1/1) ... [2020-12-02 16:07:26,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:25" (1/1) ... [2020-12-02 16:07:26,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:25" (1/1) ... [2020-12-02 16:07:26,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:25" (1/1) ... [2020-12-02 16:07:26,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:25" (1/1) ... [2020-12-02 16:07:26,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:25" (1/1) ... [2020-12-02 16:07:26,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:25" (1/1) ... [2020-12-02 16:07:26,103 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 16:07:26,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 16:07:26,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 16:07:26,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 16:07:26,105 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 16:07:26,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-12-02 16:07:26,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-02 16:07:26,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 16:07:26,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-12-02 16:07:26,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-02 16:07:26,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 16:07:26,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 16:07:26,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-02 16:07:26,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_FLOAT [2020-12-02 16:07:26,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-02 16:07:26,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 16:07:57,739 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 16:07:57,739 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-12-02 16:07:57,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:07:57 BoogieIcfgContainer [2020-12-02 16:07:57,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 16:07:57,744 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 16:07:57,744 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 16:07:57,747 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 16:07:57,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:07:25" (1/3) ... [2020-12-02 16:07:57,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c25d582 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:07:57, skipping insertion in model container [2020-12-02 16:07:57,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:07:25" (2/3) ... [2020-12-02 16:07:57,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c25d582 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:07:57, skipping insertion in model container [2020-12-02 16:07:57,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:07:57" (3/3) ... [2020-12-02 16:07:57,752 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0960b.c [2020-12-02 16:07:57,767 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 16:07:57,771 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 16:07:57,784 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 16:07:57,814 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 16:07:57,815 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 16:07:57,815 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 16:07:57,815 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 16:07:57,815 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 16:07:57,815 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 16:07:57,816 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 16:07:57,816 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 16:07:57,831 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2020-12-02 16:07:57,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-02 16:07:57,838 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 16:07:57,839 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 16:07:57,840 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 16:07:57,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 16:07:57,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1655029915, now seen corresponding path program 1 times [2020-12-02 16:07:57,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 16:07:57,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [416963096] [2020-12-02 16:07:57,864 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 16:07:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 16:07:59,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-02 16:07:59,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 16:07:59,147 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 16:07:59,148 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 16:07:59,169 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 16:07:59,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [416963096] [2020-12-02 16:07:59,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 16:07:59,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-02 16:07:59,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032937074] [2020-12-02 16:07:59,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 16:07:59,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 16:07:59,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 16:07:59,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 16:07:59,208 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 2 states. [2020-12-02 16:07:59,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 16:07:59,233 INFO L93 Difference]: Finished difference Result 92 states and 150 transitions. [2020-12-02 16:07:59,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 16:07:59,235 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-02 16:07:59,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 16:07:59,247 INFO L225 Difference]: With dead ends: 92 [2020-12-02 16:07:59,248 INFO L226 Difference]: Without dead ends: 44 [2020-12-02 16:07:59,251 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 16:07:59,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-12-02 16:07:59,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-12-02 16:07:59,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-12-02 16:07:59,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 58 transitions. [2020-12-02 16:07:59,294 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 58 transitions. Word has length 11 [2020-12-02 16:07:59,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 16:07:59,295 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 58 transitions. [2020-12-02 16:07:59,295 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 16:07:59,295 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 58 transitions. [2020-12-02 16:07:59,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-02 16:07:59,299 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 16:07:59,300 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 16:07:59,515 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-02 16:07:59,515 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 16:07:59,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 16:07:59,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1598915326, now seen corresponding path program 1 times [2020-12-02 16:07:59,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 16:07:59,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1982442402] [2020-12-02 16:07:59,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-02 16:08:00,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 16:08:00,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-02 16:08:00,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 16:08:05,007 WARN L197 SmtUtils]: Spent 3.67 s on a formula simplification that was a NOOP. DAG size: 37 [2020-12-02 16:08:11,644 WARN L197 SmtUtils]: Spent 1.71 s on a formula simplification that was a NOOP. DAG size: 46 [2020-12-02 16:08:22,759 WARN L197 SmtUtils]: Spent 1.72 s on a formula simplification that was a NOOP. DAG size: 46 [2020-12-02 16:08:38,609 WARN L197 SmtUtils]: Spent 1.85 s on a formula simplification that was a NOOP. DAG size: 46 [2020-12-02 16:08:38,675 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 16:08:38,691 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 7 disjuncts [2020-12-02 16:08:51,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-02 16:08:51,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 16:09:27,968 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start___ieee754_log10f_#res_8| (_ BitVec 32)) (|v_ULTIMATE.start___ieee754_log10f_#t~nondet105_6| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_log10f_#t~nondet105_6|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_log10f_#t~nondet105_6|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_log10f_#t~nondet105_6|)))) (or (not (= (fp.neg (fp ((_ extract 31 31) c_~two25_log10~0) ((_ extract 30 23) c_~two25_log10~0) ((_ extract 22 0) c_~two25_log10~0))) .cse0)) (= (bvadd (bvand (_ bv2147483647 32) |v_ULTIMATE.start___ieee754_log10f_#res_8|) (_ bv2155872256 32)) (_ bv0 32)) (not (= (fp.div c_~CRM .cse0 (fp ((_ extract 31 31) c_~zero~0) ((_ extract 30 23) c_~zero~0) ((_ extract 22 0) c_~zero~0))) (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_log10f_#res_8|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_log10f_#res_8|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_log10f_#res_8|))))))) is different from false [2020-12-02 16:09:30,019 WARN L860 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start___ieee754_log10f_#res_8| (_ BitVec 32)) (|v_ULTIMATE.start___ieee754_log10f_#t~nondet105_6| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_log10f_#t~nondet105_6|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_log10f_#t~nondet105_6|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_log10f_#t~nondet105_6|)))) (or (not (= (fp.neg (fp ((_ extract 31 31) c_~two25_log10~0) ((_ extract 30 23) c_~two25_log10~0) ((_ extract 22 0) c_~two25_log10~0))) .cse0)) (= (bvadd (bvand (_ bv2147483647 32) |v_ULTIMATE.start___ieee754_log10f_#res_8|) (_ bv2155872256 32)) (_ bv0 32)) (not (= (fp.div c_~CRM .cse0 (fp ((_ extract 31 31) c_~zero~0) ((_ extract 30 23) c_~zero~0) ((_ extract 22 0) c_~zero~0))) (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_log10f_#res_8|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_log10f_#res_8|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_log10f_#res_8|))))))) is different from true [2020-12-02 16:09:30,067 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 16:09:30,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1982442402] [2020-12-02 16:09:30,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 16:09:30,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 13 [2020-12-02 16:09:30,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589335708] [2020-12-02 16:09:30,070 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-02 16:09:30,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 16:09:30,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-02 16:09:30,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=109, Unknown=22, NotChecked=22, Total=182 [2020-12-02 16:09:30,072 INFO L87 Difference]: Start difference. First operand 44 states and 58 transitions. Second operand 14 states. [2020-12-02 16:09:33,182 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_ULTIMATE.init_#t~nondet98_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) |v_ULTIMATE.start_ULTIMATE.init_#t~nondet98_6|) ((_ extract 62 52) |v_ULTIMATE.start_ULTIMATE.init_#t~nondet98_6|) ((_ extract 51 0) |v_ULTIMATE.start_ULTIMATE.init_#t~nondet98_6|)))) (and (= (fp ((_ extract 31 31) c_~two25_log10~0) ((_ extract 30 23) c_~two25_log10~0) ((_ extract 22 0) c_~two25_log10~0)) ((_ to_fp 8 24) c_~CRM .cse0)) (= ((_ to_fp 11 53) c_~CRM 33554432.0) .cse0)))) (= roundNearestTiesToEven c_~CRM) (exists ((|v_ULTIMATE.start_ULTIMATE.init_#t~nondet102_6| (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) |v_ULTIMATE.start_ULTIMATE.init_#t~nondet102_6|) ((_ extract 62 52) |v_ULTIMATE.start_ULTIMATE.init_#t~nondet102_6|) ((_ extract 51 0) |v_ULTIMATE.start_ULTIMATE.init_#t~nondet102_6|)))) (and (= .cse1 (_ +zero 11 53)) (= (fp ((_ extract 31 31) c_~zero~0) ((_ extract 30 23) c_~zero~0) ((_ extract 22 0) c_~zero~0)) ((_ to_fp 8 24) c_~CRM .cse1))))) (forall ((|v_ULTIMATE.start___ieee754_log10f_#res_8| (_ BitVec 32)) (|v_ULTIMATE.start___ieee754_log10f_#t~nondet105_6| (_ BitVec 32))) (let ((.cse2 (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_log10f_#t~nondet105_6|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_log10f_#t~nondet105_6|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_log10f_#t~nondet105_6|)))) (or (not (= (fp.neg (fp ((_ extract 31 31) c_~two25_log10~0) ((_ extract 30 23) c_~two25_log10~0) ((_ extract 22 0) c_~two25_log10~0))) .cse2)) (= (bvadd (bvand (_ bv2147483647 32) |v_ULTIMATE.start___ieee754_log10f_#res_8|) (_ bv2155872256 32)) (_ bv0 32)) (not (= (fp.div c_~CRM .cse2 (fp ((_ extract 31 31) c_~zero~0) ((_ extract 30 23) c_~zero~0) ((_ extract 22 0) c_~zero~0))) (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_log10f_#res_8|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_log10f_#res_8|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_log10f_#res_8|)))))))) is different from false [2020-12-02 16:09:35,252 WARN L838 $PredicateComparison]: unable to prove that (and (= (bvadd (bvand (_ bv2147483647 32) |c_ULTIMATE.start___ieee754_log10f_#res|) (_ bv2155872256 32)) (_ bv0 32)) (exists ((~two25_log10~0 (_ BitVec 32)) (|v_ULTIMATE.start___ieee754_log10f_#t~nondet105_6| (_ BitVec 32)) (|v_ULTIMATE.start_ULTIMATE.init_#t~nondet98_6| (_ BitVec 64)) (~zero~0 (_ BitVec 32)) (|v_ULTIMATE.start_ULTIMATE.init_#t~nondet102_6| (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_log10f_#t~nondet105_6|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_log10f_#t~nondet105_6|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_log10f_#t~nondet105_6|))) (.cse4 (fp ((_ extract 31 31) ~two25_log10~0) ((_ extract 30 23) ~two25_log10~0) ((_ extract 22 0) ~two25_log10~0))) (.cse2 (fp ((_ extract 63 63) |v_ULTIMATE.start_ULTIMATE.init_#t~nondet98_6|) ((_ extract 62 52) |v_ULTIMATE.start_ULTIMATE.init_#t~nondet98_6|) ((_ extract 51 0) |v_ULTIMATE.start_ULTIMATE.init_#t~nondet98_6|))) (.cse1 (fp ((_ extract 31 31) ~zero~0) ((_ extract 30 23) ~zero~0) ((_ extract 22 0) ~zero~0))) (.cse3 (fp ((_ extract 63 63) |v_ULTIMATE.start_ULTIMATE.init_#t~nondet102_6|) ((_ extract 62 52) |v_ULTIMATE.start_ULTIMATE.init_#t~nondet102_6|) ((_ extract 51 0) |v_ULTIMATE.start_ULTIMATE.init_#t~nondet102_6|)))) (and (= (fp ((_ extract 31 31) |c_ULTIMATE.start___ieee754_log10f_#res|) ((_ extract 30 23) |c_ULTIMATE.start___ieee754_log10f_#res|) ((_ extract 22 0) |c_ULTIMATE.start___ieee754_log10f_#res|)) (fp.div roundNearestTiesToEven .cse0 .cse1)) (= .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 33554432.0)) (= .cse3 (_ +zero 11 53)) (= (fp.neg .cse4) .cse0) (= .cse4 ((_ to_fp 8 24) roundNearestTiesToEven .cse2)) (= .cse1 ((_ to_fp 8 24) roundNearestTiesToEven .cse3)))))) is different from false [2020-12-02 16:09:49,872 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2020-12-02 16:10:20,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 16:10:20,741 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2020-12-02 16:10:20,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-02 16:10:20,790 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 13 [2020-12-02 16:10:20,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 16:10:20,791 INFO L225 Difference]: With dead ends: 52 [2020-12-02 16:10:20,792 INFO L226 Difference]: Without dead ends: 44 [2020-12-02 16:10:20,793 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 94.7s TimeCoverageRelationStatistics Valid=39, Invalid=131, Unknown=24, NotChecked=78, Total=272 [2020-12-02 16:10:20,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-12-02 16:10:20,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-12-02 16:10:20,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-12-02 16:10:20,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 57 transitions. [2020-12-02 16:10:20,801 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 57 transitions. Word has length 13 [2020-12-02 16:10:20,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 16:10:20,802 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 57 transitions. [2020-12-02 16:10:20,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-02 16:10:20,802 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 57 transitions. [2020-12-02 16:10:20,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-02 16:10:20,803 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 16:10:20,803 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 16:10:21,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-02 16:10:21,010 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 16:10:21,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 16:10:21,011 INFO L82 PathProgramCache]: Analyzing trace with hash -657075683, now seen corresponding path program 1 times [2020-12-02 16:10:21,012 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 16:10:21,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [500953434] [2020-12-02 16:10:21,013 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 16:10:21,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 16:10:21,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-02 16:10:21,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 16:10:22,173 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 16:10:22,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 16:10:22,526 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 16:10:22,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [500953434] [2020-12-02 16:10:22,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 16:10:22,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-12-02 16:10:22,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321804592] [2020-12-02 16:10:22,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-02 16:10:22,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 16:10:22,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-02 16:10:22,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-02 16:10:22,530 INFO L87 Difference]: Start difference. First operand 44 states and 57 transitions. Second operand 6 states. [2020-12-02 16:10:22,752 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-12-02 16:10:22,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 16:10:22,756 INFO L93 Difference]: Finished difference Result 44 states and 57 transitions. [2020-12-02 16:10:22,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-02 16:10:22,756 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-02 16:10:22,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 16:10:22,756 INFO L225 Difference]: With dead ends: 44 [2020-12-02 16:10:22,756 INFO L226 Difference]: Without dead ends: 0 [2020-12-02 16:10:22,757 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 16:10:22,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-02 16:10:22,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-02 16:10:22,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-02 16:10:22,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-02 16:10:22,759 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-12-02 16:10:22,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 16:10:22,759 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-02 16:10:22,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-02 16:10:22,759 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-02 16:10:22,760 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-02 16:10:22,960 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-02 16:10:22,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-02 16:10:32,620 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-12-02 16:10:32,621 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:209) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:222) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:131) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.push(UndoableWrapperScript.java:53) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.pushContext(SimplifyDDA.java:737) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walkParam(SimplifyDDA.java:526) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:412) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:165) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:135) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter(HoareAnnotationComposer.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.(HoareAnnotationComposer.java:105) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeCFGHoareAnnotation(BasicCegarLoop.java:1052) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) ... 35 more [2020-12-02 16:10:32,627 INFO L168 Benchmark]: Toolchain (without parser) took 187322.89 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 27.7 MB in the beginning and 22.3 MB in the end (delta: 5.3 MB). Peak memory consumption was 22.8 MB. Max. memory is 16.1 GB. [2020-12-02 16:10:32,628 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 39.8 MB. Free memory was 26.2 MB in the beginning and 26.2 MB in the end (delta: 29.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 16:10:32,629 INFO L168 Benchmark]: CACSL2BoogieTranslator took 576.20 ms. Allocated memory is still 50.3 MB. Free memory was 27.4 MB in the beginning and 23.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2020-12-02 16:10:32,632 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.15 ms. Allocated memory is still 50.3 MB. Free memory was 23.6 MB in the beginning and 32.5 MB in the end (delta: -8.9 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2020-12-02 16:10:32,633 INFO L168 Benchmark]: Boogie Preprocessor took 114.76 ms. Allocated memory is still 50.3 MB. Free memory was 32.5 MB in the beginning and 29.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-02 16:10:32,635 INFO L168 Benchmark]: RCFGBuilder took 31638.14 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 29.6 MB in the beginning and 38.7 MB in the end (delta: -9.1 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. [2020-12-02 16:10:32,636 INFO L168 Benchmark]: TraceAbstraction took 154881.44 ms. Allocated memory is still 65.0 MB. Free memory was 38.3 MB in the beginning and 22.3 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.6 MB. Max. memory is 16.1 GB. [2020-12-02 16:10:32,642 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 39.8 MB. Free memory was 26.2 MB in the beginning and 26.2 MB in the end (delta: 29.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 576.20 ms. Allocated memory is still 50.3 MB. Free memory was 27.4 MB in the beginning and 23.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 105.15 ms. Allocated memory is still 50.3 MB. Free memory was 23.6 MB in the beginning and 32.5 MB in the end (delta: -8.9 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 114.76 ms. Allocated memory is still 50.3 MB. Free memory was 32.5 MB in the beginning and 29.6 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 31638.14 ms. Allocated memory was 50.3 MB in the beginning and 65.0 MB in the end (delta: 14.7 MB). Free memory was 29.6 MB in the beginning and 38.7 MB in the end (delta: -9.1 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 154881.44 ms. Allocated memory is still 65.0 MB. Free memory was 38.3 MB in the beginning and 22.3 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.6 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...