./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0330b.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_0330b.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 e995ffcc578662ff54a75f288505ed41dc4317ce .................................................................................................................................................................. 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_0330b.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 e995ffcc578662ff54a75f288505ed41dc4317ce ............................................................................................................................................................................................................................................................................................................................................ 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 15:38:31,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 15:38:31,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 15:38:31,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 15:38:31,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 15:38:31,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 15:38:31,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 15:38:31,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 15:38:31,483 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 15:38:31,484 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 15:38:31,485 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 15:38:31,487 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 15:38:31,487 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 15:38:31,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 15:38:31,490 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 15:38:31,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 15:38:31,492 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 15:38:31,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 15:38:31,495 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 15:38:31,497 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 15:38:31,499 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 15:38:31,507 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 15:38:31,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 15:38:31,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 15:38:31,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 15:38:31,519 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 15:38:31,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 15:38:31,521 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 15:38:31,521 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 15:38:31,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 15:38:31,528 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 15:38:31,529 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 15:38:31,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 15:38:31,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 15:38:31,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 15:38:31,542 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 15:38:31,544 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 15:38:31,544 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 15:38:31,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 15:38:31,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 15:38:31,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 15:38:31,551 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 15:38:31,604 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 15:38:31,604 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 15:38:31,607 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 15:38:31,608 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 15:38:31,608 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 15:38:31,608 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 15:38:31,608 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 15:38:31,609 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 15:38:31,609 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 15:38:31,609 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 15:38:31,610 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 15:38:31,610 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 15:38:31,611 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 15:38:31,611 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 15:38:31,611 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 15:38:31,611 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 15:38:31,611 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 15:38:31,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 15:38:31,612 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 15:38:31,612 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 15:38:31,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 15:38:31,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:38:31,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 15:38:31,613 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 15:38:31,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 15:38:31,614 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 15:38:31,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 15:38:31,614 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 15:38:31,614 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 15:38:31,614 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e995ffcc578662ff54a75f288505ed41dc4317ce [2020-12-02 15:38:32,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 15:38:32,067 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 15:38:32,070 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 15:38:32,071 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 15:38:32,073 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 15:38:32,074 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0330b.c [2020-12-02 15:38:32,157 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e40ff3f01/99f714bb07fd4dfeb50f9bd080031a8a/FLAG9f7396487 [2020-12-02 15:38:32,878 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 15:38:32,879 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0330b.c [2020-12-02 15:38:32,893 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e40ff3f01/99f714bb07fd4dfeb50f9bd080031a8a/FLAG9f7396487 [2020-12-02 15:38:33,184 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e40ff3f01/99f714bb07fd4dfeb50f9bd080031a8a [2020-12-02 15:38:33,187 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 15:38:33,190 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 15:38:33,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 15:38:33,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 15:38:33,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 15:38:33,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:38:33" (1/1) ... [2020-12-02 15:38:33,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@488e4266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:38:33, skipping insertion in model container [2020-12-02 15:38:33,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:38:33" (1/1) ... [2020-12-02 15:38:33,217 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 15:38:33,327 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 15:38:33,589 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 15:38:33,596 INFO L168 Benchmark]: Toolchain (without parser) took 404.54 ms. Allocated memory is still 46.1 MB. Free memory was 23.0 MB in the beginning and 22.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 3.6 MB. Max. memory is 16.1 GB. [2020-12-02 15:38:33,597 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 37.7 MB. Free memory was 20.1 MB in the beginning and 20.1 MB in the end (delta: 22.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:38:33,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 395.50 ms. Allocated memory is still 46.1 MB. Free memory was 22.8 MB in the beginning and 22.0 MB in the end (delta: 824.0 kB). Peak memory consumption was 3.6 MB. Max. memory is 16.1 GB. [2020-12-02 15:38:33,600 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 37.7 MB. Free memory was 20.1 MB in the beginning and 20.1 MB in the end (delta: 22.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 395.50 ms. Allocated memory is still 46.1 MB. Free memory was 22.8 MB in the beginning and 22.0 MB in the end (delta: 824.0 kB). Peak memory consumption was 3.6 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 15:38:36,114 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 15:38:36,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 15:38:36,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 15:38:36,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 15:38:36,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 15:38:36,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 15:38:36,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 15:38:36,165 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 15:38:36,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 15:38:36,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 15:38:36,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 15:38:36,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 15:38:36,171 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 15:38:36,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 15:38:36,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 15:38:36,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 15:38:36,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 15:38:36,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 15:38:36,185 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 15:38:36,188 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 15:38:36,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 15:38:36,191 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 15:38:36,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 15:38:36,195 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 15:38:36,196 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 15:38:36,196 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 15:38:36,197 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 15:38:36,198 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 15:38:36,199 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 15:38:36,199 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 15:38:36,200 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 15:38:36,201 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 15:38:36,202 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 15:38:36,204 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 15:38:36,204 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 15:38:36,205 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 15:38:36,205 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 15:38:36,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 15:38:36,207 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 15:38:36,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 15:38:36,209 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 15:38:36,245 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 15:38:36,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 15:38:36,248 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 15:38:36,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 15:38:36,250 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 15:38:36,251 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 15:38:36,251 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 15:38:36,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 15:38:36,252 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 15:38:36,252 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 15:38:36,253 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 15:38:36,253 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 15:38:36,253 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 15:38:36,254 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 15:38:36,254 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 15:38:36,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 15:38:36,254 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 15:38:36,254 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 15:38:36,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 15:38:36,255 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 15:38:36,258 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 15:38:36,259 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 15:38:36,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:38:36,259 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 15:38:36,259 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 15:38:36,259 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 15:38:36,260 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 15:38:36,260 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-02 15:38:36,260 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 15:38:36,261 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 15:38:36,261 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 15:38:36,261 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e995ffcc578662ff54a75f288505ed41dc4317ce [2020-12-02 15:38:36,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 15:38:36,713 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 15:38:36,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 15:38:36,722 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 15:38:36,723 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 15:38:36,724 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0330b.c [2020-12-02 15:38:36,822 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84fa85a94/8b7db4e8befb4067b2745d698aac5573/FLAGffafb5664 [2020-12-02 15:38:37,669 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 15:38:37,670 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0330b.c [2020-12-02 15:38:37,690 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84fa85a94/8b7db4e8befb4067b2745d698aac5573/FLAGffafb5664 [2020-12-02 15:38:37,911 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84fa85a94/8b7db4e8befb4067b2745d698aac5573 [2020-12-02 15:38:37,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 15:38:37,919 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 15:38:37,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 15:38:37,922 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 15:38:37,926 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 15:38:37,927 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:38:37" (1/1) ... [2020-12-02 15:38:37,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ac97e42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:38:37, skipping insertion in model container [2020-12-02 15:38:37,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:38:37" (1/1) ... [2020-12-02 15:38:37,945 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 15:38:38,055 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 15:38:38,504 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_0330b.c[15498,15511] [2020-12-02 15:38:38,508 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:38:38,584 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 15:38:38,834 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_0330b.c[15498,15511] [2020-12-02 15:38:38,836 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:38:38,947 INFO L217 MainTranslator]: Completed translation [2020-12-02 15:38:38,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:38:38 WrapperNode [2020-12-02 15:38:38,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 15:38:38,949 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 15:38:38,949 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 15:38:38,949 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 15:38:38,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:38:38" (1/1) ... [2020-12-02 15:38:39,017 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:38:38" (1/1) ... [2020-12-02 15:38:39,136 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 15:38:39,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 15:38:39,168 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 15:38:39,168 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 15:38:39,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:38:38" (1/1) ... [2020-12-02 15:38:39,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:38:38" (1/1) ... [2020-12-02 15:38:39,205 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:38:38" (1/1) ... [2020-12-02 15:38:39,205 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:38:38" (1/1) ... [2020-12-02 15:38:39,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:38:38" (1/1) ... [2020-12-02 15:38:39,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:38:38" (1/1) ... [2020-12-02 15:38:39,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:38:38" (1/1) ... [2020-12-02 15:38:39,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 15:38:39,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 15:38:39,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 15:38:39,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 15:38:39,388 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:38:38" (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 15:38:39,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-12-02 15:38:39,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-02 15:38:39,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2020-12-02 15:38:39,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 15:38:39,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-12-02 15:38:39,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-02 15:38:39,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-02 15:38:39,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-12-02 15:38:39,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 15:38:39,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 15:38:39,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_FLOAT [2020-12-02 15:38:39,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-02 15:38:39,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 15:40:02,979 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 15:40:02,981 INFO L298 CfgBuilder]: Removed 217 assume(true) statements. [2020-12-02 15:40:02,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:40:02 BoogieIcfgContainer [2020-12-02 15:40:02,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 15:40:02,989 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 15:40:02,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 15:40:02,995 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 15:40:02,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:38:37" (1/3) ... [2020-12-02 15:40:02,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@482dcc21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:40:02, skipping insertion in model container [2020-12-02 15:40:02,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:38:38" (2/3) ... [2020-12-02 15:40:02,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@482dcc21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:40:02, skipping insertion in model container [2020-12-02 15:40:02,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:40:02" (3/3) ... [2020-12-02 15:40:03,010 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0330b.c [2020-12-02 15:40:03,030 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 15:40:03,036 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 15:40:03,049 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 15:40:03,102 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 15:40:03,102 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 15:40:03,102 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 15:40:03,102 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 15:40:03,103 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 15:40:03,103 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 15:40:03,103 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 15:40:03,103 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 15:40:03,164 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states. [2020-12-02 15:40:03,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-02 15:40:03,186 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:40:03,189 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:40:03,190 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:40:03,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:40:03,201 INFO L82 PathProgramCache]: Analyzing trace with hash -1676684853, now seen corresponding path program 1 times [2020-12-02 15:40:03,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:40:03,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [801820372] [2020-12-02 15:40:03,220 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 15:40:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:40:05,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-02 15:40:05,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:40:05,674 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 15:40:05,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:40:05,696 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 15:40:05,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [801820372] [2020-12-02 15:40:05,699 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:40:05,699 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-02 15:40:05,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861448977] [2020-12-02 15:40:05,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 15:40:05,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:40:05,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 15:40:05,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:40:05,743 INFO L87 Difference]: Start difference. First operand 402 states. Second operand 2 states. [2020-12-02 15:40:05,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:40:05,904 INFO L93 Difference]: Finished difference Result 802 states and 1368 transitions. [2020-12-02 15:40:05,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 15:40:05,906 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-02 15:40:05,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:40:05,924 INFO L225 Difference]: With dead ends: 802 [2020-12-02 15:40:05,925 INFO L226 Difference]: Without dead ends: 399 [2020-12-02 15:40:05,931 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 15:40:05,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-12-02 15:40:06,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 399. [2020-12-02 15:40:06,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2020-12-02 15:40:06,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 522 transitions. [2020-12-02 15:40:06,037 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 522 transitions. Word has length 10 [2020-12-02 15:40:06,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:40:06,038 INFO L481 AbstractCegarLoop]: Abstraction has 399 states and 522 transitions. [2020-12-02 15:40:06,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 15:40:06,040 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 522 transitions. [2020-12-02 15:40:06,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-02 15:40:06,040 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:40:06,041 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:40:06,254 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-02 15:40:06,255 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:40:06,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:40:06,257 INFO L82 PathProgramCache]: Analyzing trace with hash 282975246, now seen corresponding path program 1 times [2020-12-02 15:40:06,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:40:06,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1260140595] [2020-12-02 15:40:06,259 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 15:40:08,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:40:08,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-02 15:40:08,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:40:10,098 WARN L197 SmtUtils]: Spent 918.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-12-02 15:40:14,641 WARN L197 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-12-02 15:40:14,657 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 15:40:14,661 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-02 15:40:16,613 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 15:40:16,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:40:21,335 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-02 15:40:21,596 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 15:40:21,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1260140595] [2020-12-02 15:40:21,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:40:21,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2020-12-02 15:40:21,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557212795] [2020-12-02 15:40:21,600 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-02 15:40:21,600 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:40:21,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-02 15:40:21,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=84, Unknown=1, NotChecked=0, Total=110 [2020-12-02 15:40:21,602 INFO L87 Difference]: Start difference. First operand 399 states and 522 transitions. Second operand 11 states. [2020-12-02 15:41:15,472 WARN L197 SmtUtils]: Spent 20.94 s on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-12-02 15:41:51,879 WARN L197 SmtUtils]: Spent 23.44 s on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-12-02 15:42:29,091 WARN L197 SmtUtils]: Spent 25.54 s on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-12-02 15:47:14,865 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-12-02 15:47:15,070 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-02 15:47:15,072 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: Stream closed at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:442) at java.base/java.io.OutputStream.write(OutputStream.java:157) 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 15:47:15,080 INFO L168 Benchmark]: Toolchain (without parser) took 517160.92 ms. Allocated memory was 46.1 MB in the beginning and 371.2 MB in the end (delta: 325.1 MB). Free memory was 22.4 MB in the beginning and 124.3 MB in the end (delta: -101.9 MB). Peak memory consumption was 224.1 MB. Max. memory is 16.1 GB. [2020-12-02 15:47:15,081 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 46.1 MB. Free memory was 31.5 MB in the beginning and 31.4 MB in the end (delta: 34.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:47:15,082 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1026.72 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 22.2 MB in the beginning and 24.7 MB in the end (delta: -2.5 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2020-12-02 15:47:15,083 INFO L168 Benchmark]: Boogie Procedure Inliner took 187.22 ms. Allocated memory is still 56.6 MB. Free memory was 24.4 MB in the beginning and 21.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. [2020-12-02 15:47:15,084 INFO L168 Benchmark]: Boogie Preprocessor took 245.54 ms. Allocated memory is still 56.6 MB. Free memory was 21.0 MB in the beginning and 23.4 MB in the end (delta: -2.5 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. [2020-12-02 15:47:15,086 INFO L168 Benchmark]: RCFGBuilder took 83603.75 ms. Allocated memory was 56.6 MB in the beginning and 371.2 MB in the end (delta: 314.6 MB). Free memory was 23.4 MB in the beginning and 122.4 MB in the end (delta: -98.9 MB). Peak memory consumption was 224.3 MB. Max. memory is 16.1 GB. [2020-12-02 15:47:15,086 INFO L168 Benchmark]: TraceAbstraction took 432089.39 ms. Allocated memory is still 371.2 MB. Free memory was 122.4 MB in the beginning and 124.3 MB in the end (delta: -1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:47:15,091 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 46.1 MB. Free memory was 31.5 MB in the beginning and 31.4 MB in the end (delta: 34.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1026.72 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 22.2 MB in the beginning and 24.7 MB in the end (delta: -2.5 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 187.22 ms. Allocated memory is still 56.6 MB. Free memory was 24.4 MB in the beginning and 21.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 245.54 ms. Allocated memory is still 56.6 MB. Free memory was 21.0 MB in the beginning and 23.4 MB in the end (delta: -2.5 MB). Peak memory consumption was 13.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 83603.75 ms. Allocated memory was 56.6 MB in the beginning and 371.2 MB in the end (delta: 314.6 MB). Free memory was 23.4 MB in the beginning and 122.4 MB in the end (delta: -98.9 MB). Peak memory consumption was 224.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 432089.39 ms. Allocated memory is still 371.2 MB. Free memory was 122.4 MB in the beginning and 124.3 MB in the end (delta: -1.9 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...