./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0240b.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_0240b.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 90928d207d82776f58f2ad1e7d3cb92a823574b5 .................................................................................................................................................................. 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_0240b.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 90928d207d82776f58f2ad1e7d3cb92a823574b5 ............................................................................................................................................................................................................................................................................................................................................ 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) Connection to SMT solver broken --- Real Ultimate output --- This is Ultimate 0.2.0-2880296 [2020-12-02 15:35:48,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 15:35:48,237 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 15:35:48,288 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 15:35:48,289 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 15:35:48,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 15:35:48,293 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 15:35:48,295 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 15:35:48,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 15:35:48,299 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 15:35:48,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 15:35:48,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 15:35:48,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 15:35:48,304 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 15:35:48,306 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 15:35:48,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 15:35:48,308 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 15:35:48,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 15:35:48,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 15:35:48,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 15:35:48,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 15:35:48,319 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 15:35:48,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 15:35:48,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 15:35:48,326 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 15:35:48,326 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 15:35:48,327 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 15:35:48,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 15:35:48,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 15:35:48,331 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 15:35:48,331 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 15:35:48,333 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 15:35:48,334 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 15:35:48,335 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 15:35:48,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 15:35:48,338 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 15:35:48,339 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 15:35:48,339 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 15:35:48,340 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 15:35:48,341 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 15:35:48,342 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 15:35:48,346 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 15:35:48,373 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 15:35:48,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 15:35:48,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 15:35:48,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 15:35:48,376 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 15:35:48,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 15:35:48,377 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 15:35:48,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 15:35:48,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 15:35:48,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 15:35:48,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 15:35:48,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 15:35:48,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 15:35:48,379 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 15:35:48,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 15:35:48,379 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 15:35:48,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 15:35:48,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 15:35:48,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 15:35:48,380 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 15:35:48,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 15:35:48,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:35:48,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 15:35:48,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 15:35:48,382 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 15:35:48,382 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 15:35:48,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 15:35:48,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 15:35:48,383 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 15:35:48,383 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90928d207d82776f58f2ad1e7d3cb92a823574b5 [2020-12-02 15:35:48,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 15:35:48,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 15:35:48,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 15:35:48,814 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 15:35:48,815 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 15:35:48,816 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0240b.c [2020-12-02 15:35:48,914 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0262fcd50/0f212fcb2aa94aceaee2c2f3ecfa1be6/FLAG30b197892 [2020-12-02 15:35:49,772 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 15:35:49,773 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0240b.c [2020-12-02 15:35:49,794 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0262fcd50/0f212fcb2aa94aceaee2c2f3ecfa1be6/FLAG30b197892 [2020-12-02 15:35:49,997 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0262fcd50/0f212fcb2aa94aceaee2c2f3ecfa1be6 [2020-12-02 15:35:50,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 15:35:50,004 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 15:35:50,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 15:35:50,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 15:35:50,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 15:35:50,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:35:49" (1/1) ... [2020-12-02 15:35:50,049 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75f89b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:50, skipping insertion in model container [2020-12-02 15:35:50,049 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:35:49" (1/1) ... [2020-12-02 15:35:50,059 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 15:35:50,121 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 15:35:50,430 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:1081) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:705) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1351) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2199) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:196) 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 15:35:50,437 INFO L168 Benchmark]: Toolchain (without parser) took 433.20 ms. Allocated memory is still 50.3 MB. Free memory was 35.5 MB in the beginning and 23.5 MB in the end (delta: 12.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-02 15:35:50,438 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 39.8 MB. Free memory was 19.6 MB in the beginning and 19.5 MB in the end (delta: 42.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:35:50,439 INFO L168 Benchmark]: CACSL2BoogieTranslator took 404.89 ms. Allocated memory is still 50.3 MB. Free memory was 35.4 MB in the beginning and 23.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-02 15:35:50,442 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 39.8 MB. Free memory was 19.6 MB in the beginning and 19.5 MB in the end (delta: 42.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 404.89 ms. Allocated memory is still 50.3 MB. Free memory was 35.4 MB in the beginning and 23.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 8.4 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 15:35:52,999 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 15:35:53,002 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 15:35:53,056 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 15:35:53,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 15:35:53,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 15:35:53,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 15:35:53,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 15:35:53,080 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 15:35:53,087 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 15:35:53,089 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 15:35:53,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 15:35:53,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 15:35:53,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 15:35:53,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 15:35:53,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 15:35:53,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 15:35:53,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 15:35:53,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 15:35:53,116 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 15:35:53,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 15:35:53,120 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 15:35:53,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 15:35:53,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 15:35:53,135 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 15:35:53,136 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 15:35:53,136 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 15:35:53,138 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 15:35:53,139 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 15:35:53,140 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 15:35:53,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 15:35:53,142 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 15:35:53,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 15:35:53,145 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 15:35:53,149 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 15:35:53,149 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 15:35:53,150 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 15:35:53,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 15:35:53,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 15:35:53,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 15:35:53,155 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 15:35:53,156 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 15:35:53,213 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 15:35:53,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 15:35:53,216 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 15:35:53,217 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 15:35:53,217 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 15:35:53,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 15:35:53,218 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 15:35:53,218 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 15:35:53,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 15:35:53,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 15:35:53,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 15:35:53,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 15:35:53,221 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 15:35:53,221 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 15:35:53,222 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 15:35:53,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 15:35:53,222 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 15:35:53,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 15:35:53,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 15:35:53,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 15:35:53,224 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 15:35:53,224 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 15:35:53,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:35:53,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 15:35:53,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 15:35:53,226 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 15:35:53,226 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 15:35:53,226 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-02 15:35:53,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 15:35:53,227 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 15:35:53,227 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 15:35:53,228 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90928d207d82776f58f2ad1e7d3cb92a823574b5 [2020-12-02 15:35:53,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 15:35:53,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 15:35:53,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 15:35:53,739 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 15:35:53,740 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 15:35:53,741 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0240b.c [2020-12-02 15:35:53,833 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb5d4db05/18c9b52bb7ab4edea4aa3b5329913579/FLAG3c6d49de0 [2020-12-02 15:35:54,593 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 15:35:54,594 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0240b.c [2020-12-02 15:35:54,608 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb5d4db05/18c9b52bb7ab4edea4aa3b5329913579/FLAG3c6d49de0 [2020-12-02 15:35:54,926 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb5d4db05/18c9b52bb7ab4edea4aa3b5329913579 [2020-12-02 15:35:54,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 15:35:54,935 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 15:35:54,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 15:35:54,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 15:35:54,945 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 15:35:54,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:35:54" (1/1) ... [2020-12-02 15:35:54,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43992a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:54, skipping insertion in model container [2020-12-02 15:35:54,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:35:54" (1/1) ... [2020-12-02 15:35:54,966 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 15:35:55,044 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 15:35:55,488 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_0240b.c[15877,15890] [2020-12-02 15:35:55,492 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:35:55,583 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 15:35:55,792 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_0240b.c[15877,15890] [2020-12-02 15:35:55,793 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:35:55,937 INFO L217 MainTranslator]: Completed translation [2020-12-02 15:35:55,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:55 WrapperNode [2020-12-02 15:35:55,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 15:35:55,939 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 15:35:55,940 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 15:35:55,940 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 15:35:55,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:55" (1/1) ... [2020-12-02 15:35:55,991 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:55" (1/1) ... [2020-12-02 15:35:56,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 15:35:56,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 15:35:56,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 15:35:56,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 15:35:56,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:55" (1/1) ... [2020-12-02 15:35:56,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:55" (1/1) ... [2020-12-02 15:35:56,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:55" (1/1) ... [2020-12-02 15:35:56,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:55" (1/1) ... [2020-12-02 15:35:56,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:55" (1/1) ... [2020-12-02 15:35:56,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:55" (1/1) ... [2020-12-02 15:35:56,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:55" (1/1) ... [2020-12-02 15:35:56,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 15:35:56,441 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 15:35:56,441 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 15:35:56,441 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 15:35:56,445 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:55" (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 15:35:56,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-12-02 15:35:56,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-02 15:35:56,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2020-12-02 15:35:56,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 15:35:56,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-12-02 15:35:56,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-02 15:35:56,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-02 15:35:56,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-12-02 15:35:56,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 15:35:56,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 15:35:56,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_FLOAT [2020-12-02 15:35:56,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-02 15:35:56,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 15:37:18,517 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 15:37:18,517 INFO L298 CfgBuilder]: Removed 215 assume(true) statements. [2020-12-02 15:37:18,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:37:18 BoogieIcfgContainer [2020-12-02 15:37:18,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 15:37:18,526 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 15:37:18,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 15:37:18,530 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 15:37:18,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:35:54" (1/3) ... [2020-12-02 15:37:18,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12b83ca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:37:18, skipping insertion in model container [2020-12-02 15:37:18,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:55" (2/3) ... [2020-12-02 15:37:18,533 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12b83ca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:37:18, skipping insertion in model container [2020-12-02 15:37:18,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:37:18" (3/3) ... [2020-12-02 15:37:18,538 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0240b.c [2020-12-02 15:37:18,555 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 15:37:18,561 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 15:37:18,574 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 15:37:18,631 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 15:37:18,631 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 15:37:18,632 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 15:37:18,632 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 15:37:18,632 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 15:37:18,632 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 15:37:18,633 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 15:37:18,633 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 15:37:18,672 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states. [2020-12-02 15:37:18,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-02 15:37:18,695 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:37:18,696 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:37:18,697 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:37:18,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:37:18,704 INFO L82 PathProgramCache]: Analyzing trace with hash 2085780235, now seen corresponding path program 1 times [2020-12-02 15:37:18,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:37:18,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1065306994] [2020-12-02 15:37:18,728 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 15:37:21,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:37:21,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-02 15:37:21,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:37:21,943 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 15:37:21,944 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:37:21,966 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 15:37:21,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1065306994] [2020-12-02 15:37:21,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:37:21,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-02 15:37:21,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949471323] [2020-12-02 15:37:21,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 15:37:21,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:37:22,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 15:37:22,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:37:22,022 INFO L87 Difference]: Start difference. First operand 398 states. Second operand 2 states. [2020-12-02 15:37:22,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:37:22,159 INFO L93 Difference]: Finished difference Result 794 states and 1354 transitions. [2020-12-02 15:37:22,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 15:37:22,169 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-02 15:37:22,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:37:22,200 INFO L225 Difference]: With dead ends: 794 [2020-12-02 15:37:22,200 INFO L226 Difference]: Without dead ends: 395 [2020-12-02 15:37:22,207 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 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 15:37:22,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2020-12-02 15:37:22,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 395. [2020-12-02 15:37:22,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2020-12-02 15:37:22,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 517 transitions. [2020-12-02 15:37:22,288 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 517 transitions. Word has length 10 [2020-12-02 15:37:22,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:37:22,288 INFO L481 AbstractCegarLoop]: Abstraction has 395 states and 517 transitions. [2020-12-02 15:37:22,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 15:37:22,289 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 517 transitions. [2020-12-02 15:37:22,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-02 15:37:22,289 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:37:22,290 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:37:22,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-02 15:37:22,504 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:37:22,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:37:22,506 INFO L82 PathProgramCache]: Analyzing trace with hash -249526962, now seen corresponding path program 1 times [2020-12-02 15:37:22,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:37:22,508 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1235717536] [2020-12-02 15:37:22,508 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 15:37:25,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:37:25,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-02 15:37:25,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:37:27,107 WARN L197 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 35 [2020-12-02 15:37:31,019 WARN L197 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-12-02 15:37:31,037 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 15:37:31,040 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-02 15:37:32,756 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 15:37:32,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:37:36,759 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-02 15:37:37,103 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 15:37:37,104 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1235717536] [2020-12-02 15:37:37,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:37:37,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2020-12-02 15:37:37,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915194180] [2020-12-02 15:37:37,106 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-02 15:37:37,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:37:37,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-02 15:37:37,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=84, Unknown=1, NotChecked=0, Total=110 [2020-12-02 15:37:37,108 INFO L87 Difference]: Start difference. First operand 395 states and 517 transitions. Second operand 11 states. [2020-12-02 15:38:32,177 WARN L197 SmtUtils]: Spent 21.10 s on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-12-02 15:39:10,904 WARN L197 SmtUtils]: Spent 26.24 s on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-12-02 15:39:45,703 WARN L197 SmtUtils]: Spent 24.86 s on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-12-02 15:44:36,858 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-12-02 15:44:37,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-02 15:44:37,062 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) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:137) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:128) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPostcondition(IncrementalHoareTripleChecker.java:662) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:281) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ProtectiveHoareTripleChecker.releaseLock(ProtectiveHoareTripleChecker.java:93) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.EfficientHoareTripleChecker.releaseLock(EfficientHoareTripleChecker.java:162) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:201) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:759) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:674) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:138) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Broken pipe at java.base/java.io.FileOutputStream.writeBytes(Native Method) at java.base/java.io.FileOutputStream.write(FileOutputStream.java:354) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:81) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:142) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:318) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:153) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:254) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:257) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:120) ... 31 more [2020-12-02 15:44:37,069 INFO L168 Benchmark]: Toolchain (without parser) took 522134.36 ms. Allocated memory was 44.0 MB in the beginning and 467.7 MB in the end (delta: 423.6 MB). Free memory was 28.8 MB in the beginning and 306.6 MB in the end (delta: -277.9 MB). Peak memory consumption was 144.7 MB. Max. memory is 16.1 GB. [2020-12-02 15:44:37,070 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 44.0 MB. Free memory was 28.3 MB in the beginning and 28.3 MB in the end (delta: 28.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:44:37,071 INFO L168 Benchmark]: CACSL2BoogieTranslator took 999.61 ms. Allocated memory was 44.0 MB in the beginning and 56.6 MB in the end (delta: 12.6 MB). Free memory was 28.5 MB in the beginning and 29.5 MB in the end (delta: -987.2 kB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. [2020-12-02 15:44:37,072 INFO L168 Benchmark]: Boogie Procedure Inliner took 220.65 ms. Allocated memory is still 56.6 MB. Free memory was 29.5 MB in the beginning and 24.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-02 15:44:37,078 INFO L168 Benchmark]: Boogie Preprocessor took 278.86 ms. Allocated memory is still 56.6 MB. Free memory was 23.9 MB in the beginning and 17.9 MB in the end (delta: 5.9 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. [2020-12-02 15:44:37,081 INFO L168 Benchmark]: RCFGBuilder took 82081.71 ms. Allocated memory was 56.6 MB in the beginning and 467.7 MB in the end (delta: 411.0 MB). Free memory was 17.7 MB in the beginning and 262.2 MB in the end (delta: -244.5 MB). Peak memory consumption was 275.0 MB. Max. memory is 16.1 GB. [2020-12-02 15:44:37,082 INFO L168 Benchmark]: TraceAbstraction took 438541.81 ms. Allocated memory is still 467.7 MB. Free memory was 262.2 MB in the beginning and 306.6 MB in the end (delta: -44.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:44:37,087 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 44.0 MB. Free memory was 28.3 MB in the beginning and 28.3 MB in the end (delta: 28.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 999.61 ms. Allocated memory was 44.0 MB in the beginning and 56.6 MB in the end (delta: 12.6 MB). Free memory was 28.5 MB in the beginning and 29.5 MB in the end (delta: -987.2 kB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 220.65 ms. Allocated memory is still 56.6 MB. Free memory was 29.5 MB in the beginning and 24.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 278.86 ms. Allocated memory is still 56.6 MB. Free memory was 23.9 MB in the beginning and 17.9 MB in the end (delta: 5.9 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 82081.71 ms. Allocated memory was 56.6 MB in the beginning and 467.7 MB in the end (delta: 411.0 MB). Free memory was 17.7 MB in the beginning and 262.2 MB in the end (delta: -244.5 MB). Peak memory consumption was 275.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 438541.81 ms. Allocated memory is still 467.7 MB. Free memory was 262.2 MB in the beginning and 306.6 MB in the end (delta: -44.4 MB). There was no memory consumed. 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) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...