./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0550b.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_0550b.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 4bf6eafdbe8fda5da55032493563d6f73b18119b .................................................................................................................................................................. 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_0550b.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 4bf6eafdbe8fda5da55032493563d6f73b18119b ............................................................................................................................................................................................................................................................................................................................................ 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 15:40:51,067 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 15:40:51,073 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 15:40:51,131 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 15:40:51,132 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 15:40:51,138 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 15:40:51,141 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 15:40:51,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 15:40:51,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 15:40:51,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 15:40:51,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 15:40:51,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 15:40:51,163 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 15:40:51,164 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 15:40:51,165 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 15:40:51,166 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 15:40:51,167 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 15:40:51,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 15:40:51,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 15:40:51,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 15:40:51,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 15:40:51,178 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 15:40:51,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 15:40:51,181 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 15:40:51,184 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 15:40:51,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 15:40:51,185 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 15:40:51,186 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 15:40:51,187 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 15:40:51,188 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 15:40:51,188 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 15:40:51,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 15:40:51,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 15:40:51,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 15:40:51,192 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 15:40:51,204 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 15:40:51,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 15:40:51,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 15:40:51,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 15:40:51,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 15:40:51,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 15:40:51,217 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-02 15:40:51,270 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 15:40:51,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 15:40:51,274 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 15:40:51,274 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 15:40:51,275 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 15:40:51,275 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 15:40:51,275 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 15:40:51,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-02 15:40:51,276 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 15:40:51,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 15:40:51,276 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 15:40:51,276 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 15:40:51,276 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 15:40:51,276 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 15:40:51,277 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 15:40:51,277 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 15:40:51,277 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 15:40:51,277 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 15:40:51,278 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 15:40:51,278 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 15:40:51,278 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 15:40:51,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:40:51,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 15:40:51,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 15:40:51,280 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 15:40:51,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-02 15:40:51,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-02 15:40:51,281 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 15:40:51,281 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 15:40:51,281 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bf6eafdbe8fda5da55032493563d6f73b18119b [2020-12-02 15:40:51,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 15:40:51,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 15:40:51,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 15:40:51,719 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 15:40:51,720 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 15:40:51,722 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0550b.c [2020-12-02 15:40:51,804 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2dc0ca7a2/9a77cf4cb6f34b60be1d20917e2df788/FLAGf4cade613 [2020-12-02 15:40:52,612 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 15:40:52,613 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0550b.c [2020-12-02 15:40:52,627 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2dc0ca7a2/9a77cf4cb6f34b60be1d20917e2df788/FLAGf4cade613 [2020-12-02 15:40:52,858 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2dc0ca7a2/9a77cf4cb6f34b60be1d20917e2df788 [2020-12-02 15:40:52,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 15:40:52,875 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 15:40:52,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 15:40:52,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 15:40:52,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 15:40:52,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:40:52" (1/1) ... [2020-12-02 15:40:52,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@158c329b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:52, skipping insertion in model container [2020-12-02 15:40:52,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:40:52" (1/1) ... [2020-12-02 15:40:52,898 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 15:40:52,999 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 15:40:53,402 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 15:40:53,411 INFO L168 Benchmark]: Toolchain (without parser) took 535.84 ms. Allocated memory is still 50.3 MB. Free memory was 25.9 MB in the beginning and 24.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 3.6 MB. Max. memory is 16.1 GB. [2020-12-02 15:40:53,412 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 39.8 MB. Free memory was 23.4 MB in the beginning and 23.3 MB in the end (delta: 42.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:40:53,413 INFO L168 Benchmark]: CACSL2BoogieTranslator took 529.33 ms. Allocated memory is still 50.3 MB. Free memory was 25.8 MB in the beginning and 24.9 MB in the end (delta: 882.2 kB). Peak memory consumption was 3.6 MB. Max. memory is 16.1 GB. [2020-12-02 15:40:53,415 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 39.8 MB. Free memory was 23.4 MB in the beginning and 23.3 MB in the end (delta: 42.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 529.33 ms. Allocated memory is still 50.3 MB. Free memory was 25.8 MB in the beginning and 24.9 MB in the end (delta: 882.2 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 15:40:55,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-02 15:40:55,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-02 15:40:55,986 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-02 15:40:55,987 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-02 15:40:55,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-02 15:40:55,996 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-02 15:40:56,003 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-02 15:40:56,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-02 15:40:56,013 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-02 15:40:56,015 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-02 15:40:56,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-02 15:40:56,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-02 15:40:56,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-02 15:40:56,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-02 15:40:56,030 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-02 15:40:56,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-02 15:40:56,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-02 15:40:56,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-02 15:40:56,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-02 15:40:56,050 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-02 15:40:56,052 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-02 15:40:56,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-02 15:40:56,056 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-02 15:40:56,066 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-02 15:40:56,069 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-02 15:40:56,070 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-02 15:40:56,071 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-02 15:40:56,073 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-02 15:40:56,074 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-02 15:40:56,075 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-02 15:40:56,076 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-02 15:40:56,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-02 15:40:56,079 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-02 15:40:56,080 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-02 15:40:56,081 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-02 15:40:56,084 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-02 15:40:56,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-02 15:40:56,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-02 15:40:56,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-02 15:40:56,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-02 15:40:56,090 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-02 15:40:56,141 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-02 15:40:56,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-02 15:40:56,143 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-02 15:40:56,144 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-02 15:40:56,144 INFO L138 SettingsManager]: * Use SBE=true [2020-12-02 15:40:56,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-02 15:40:56,145 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-02 15:40:56,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-02 15:40:56,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-02 15:40:56,145 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-02 15:40:56,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-02 15:40:56,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-02 15:40:56,146 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-02 15:40:56,146 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-02 15:40:56,147 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-02 15:40:56,147 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-02 15:40:56,147 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-02 15:40:56,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-02 15:40:56,148 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-02 15:40:56,148 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-02 15:40:56,148 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-02 15:40:56,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-02 15:40:56,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-02 15:40:56,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-02 15:40:56,149 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-02 15:40:56,149 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-02 15:40:56,150 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-02 15:40:56,150 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-02 15:40:56,150 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-02 15:40:56,150 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-02 15:40:56,151 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-02 15:40:56,151 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bf6eafdbe8fda5da55032493563d6f73b18119b [2020-12-02 15:40:56,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-02 15:40:56,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-02 15:40:56,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-02 15:40:56,615 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-02 15:40:56,616 INFO L275 PluginConnector]: CDTParser initialized [2020-12-02 15:40:56,617 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0550b.c [2020-12-02 15:40:56,726 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad7ba98c8/20f4d51718d64462b74d95db6c53fffa/FLAG026da711c [2020-12-02 15:40:57,386 INFO L306 CDTParser]: Found 1 translation units. [2020-12-02 15:40:57,387 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0550b.c [2020-12-02 15:40:57,411 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad7ba98c8/20f4d51718d64462b74d95db6c53fffa/FLAG026da711c [2020-12-02 15:40:57,712 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad7ba98c8/20f4d51718d64462b74d95db6c53fffa [2020-12-02 15:40:57,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-02 15:40:57,718 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-02 15:40:57,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-02 15:40:57,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-02 15:40:57,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-02 15:40:57,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:40:57" (1/1) ... [2020-12-02 15:40:57,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a147636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:57, skipping insertion in model container [2020-12-02 15:40:57,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:40:57" (1/1) ... [2020-12-02 15:40:57,742 INFO L146 MainTranslator]: Starting translation in SV-COMP mode [2020-12-02 15:40:57,787 INFO L179 MainTranslator]: Built tables and reachable declarations [2020-12-02 15:40:58,246 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_0550b.c[15673,15686] [2020-12-02 15:40:58,252 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:40:58,350 INFO L212 MainTranslator]: Completed pre-run [2020-12-02 15:40:58,495 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_0550b.c[15673,15686] [2020-12-02 15:40:58,496 INFO L211 PostProcessor]: Analyzing one entry point: main [2020-12-02 15:40:58,573 INFO L217 MainTranslator]: Completed translation [2020-12-02 15:40:58,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:58 WrapperNode [2020-12-02 15:40:58,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-02 15:40:58,578 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-02 15:40:58,578 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-02 15:40:58,579 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-02 15:40:58,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:58" (1/1) ... [2020-12-02 15:40:58,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:58" (1/1) ... [2020-12-02 15:40:58,876 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-02 15:40:58,881 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-02 15:40:58,881 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-02 15:40:58,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-02 15:40:58,894 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:58" (1/1) ... [2020-12-02 15:40:58,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:58" (1/1) ... [2020-12-02 15:40:58,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:58" (1/1) ... [2020-12-02 15:40:58,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:58" (1/1) ... [2020-12-02 15:40:59,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:58" (1/1) ... [2020-12-02 15:40:59,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:58" (1/1) ... [2020-12-02 15:40:59,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:58" (1/1) ... [2020-12-02 15:40:59,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-02 15:40:59,137 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-02 15:40:59,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-02 15:40:59,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-02 15:40:59,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:58" (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 15:40:59,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_DOUBLE [2020-12-02 15:40:59,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-02 15:40:59,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2020-12-02 15:40:59,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-02 15:40:59,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-12-02 15:40:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-02 15:40:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-02 15:40:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-12-02 15:40:59,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-02 15:40:59,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-02 15:40:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.float_to_bitvec_FLOAT [2020-12-02 15:40:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-02 15:40:59,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-02 15:42:18,243 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-02 15:42:18,244 INFO L298 CfgBuilder]: Removed 227 assume(true) statements. [2020-12-02 15:42:18,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:42:18 BoogieIcfgContainer [2020-12-02 15:42:18,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-02 15:42:18,249 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-02 15:42:18,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-02 15:42:18,254 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-02 15:42:18,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:40:57" (1/3) ... [2020-12-02 15:42:18,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e8e254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:42:18, skipping insertion in model container [2020-12-02 15:42:18,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:40:58" (2/3) ... [2020-12-02 15:42:18,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e8e254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:42:18, skipping insertion in model container [2020-12-02 15:42:18,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:42:18" (3/3) ... [2020-12-02 15:42:18,259 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0550b.c [2020-12-02 15:42:18,273 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-02 15:42:18,282 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-02 15:42:18,296 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-02 15:42:18,344 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-02 15:42:18,344 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-02 15:42:18,344 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-02 15:42:18,345 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-02 15:42:18,345 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-02 15:42:18,345 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-02 15:42:18,345 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-02 15:42:18,345 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-02 15:42:18,368 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states. [2020-12-02 15:42:18,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-02 15:42:18,375 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:42:18,376 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:42:18,377 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:42:18,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:42:18,384 INFO L82 PathProgramCache]: Analyzing trace with hash 865953163, now seen corresponding path program 1 times [2020-12-02 15:42:18,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:42:18,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1036980155] [2020-12-02 15:42:18,404 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 15:42:20,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:42:20,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-02 15:42:20,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:42:20,832 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 15:42:20,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:42:20,844 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 15:42:20,845 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1036980155] [2020-12-02 15:42:20,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:42:20,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-02 15:42:20,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638596526] [2020-12-02 15:42:20,852 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-02 15:42:20,852 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:42:20,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-02 15:42:20,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-02 15:42:20,871 INFO L87 Difference]: Start difference. First operand 407 states. Second operand 2 states. [2020-12-02 15:42:20,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-02 15:42:20,971 INFO L93 Difference]: Finished difference Result 812 states and 1390 transitions. [2020-12-02 15:42:20,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-02 15:42:20,972 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-02 15:42:20,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-02 15:42:20,996 INFO L225 Difference]: With dead ends: 812 [2020-12-02 15:42:20,996 INFO L226 Difference]: Without dead ends: 404 [2020-12-02 15:42:21,003 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 15:42:21,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2020-12-02 15:42:21,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2020-12-02 15:42:21,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 404 states. [2020-12-02 15:42:21,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 521 transitions. [2020-12-02 15:42:21,106 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 521 transitions. Word has length 10 [2020-12-02 15:42:21,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-02 15:42:21,106 INFO L481 AbstractCegarLoop]: Abstraction has 404 states and 521 transitions. [2020-12-02 15:42:21,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-02 15:42:21,107 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 521 transitions. [2020-12-02 15:42:21,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-02 15:42:21,107 INFO L414 BasicCegarLoop]: Found error trace [2020-12-02 15:42:21,108 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-02 15:42:21,322 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-02 15:42:21,323 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-02 15:42:21,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-02 15:42:21,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1469354034, now seen corresponding path program 1 times [2020-12-02 15:42:21,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-02 15:42:21,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2100684640] [2020-12-02 15:42:21,329 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 15:42:23,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-02 15:42:23,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-02 15:42:23,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-02 15:42:24,899 WARN L197 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-12-02 15:42:28,497 WARN L197 SmtUtils]: Spent 538.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-12-02 15:42:28,520 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-02 15:42:28,526 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-02 15:42:30,371 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 15:42:30,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-02 15:42:34,639 WARN L197 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-02 15:42:34,978 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 15:42:34,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2100684640] [2020-12-02 15:42:34,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-02 15:42:34,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2020-12-02 15:42:34,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795742339] [2020-12-02 15:42:34,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-02 15:42:34,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-02 15:42:34,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-02 15:42:34,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=84, Unknown=1, NotChecked=0, Total=110 [2020-12-02 15:42:34,983 INFO L87 Difference]: Start difference. First operand 404 states and 521 transitions. Second operand 11 states. [2020-12-02 15:43:29,305 WARN L197 SmtUtils]: Spent 18.32 s on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-12-02 15:44:04,836 WARN L197 SmtUtils]: Spent 23.58 s on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-12-02 15:44:41,612 WARN L197 SmtUtils]: Spent 25.43 s on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-12-02 15:47:03,602 WARN L195 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2020-12-02 15:47:03,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-02 15:47:03,806 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 15:47:03,815 INFO L168 Benchmark]: Toolchain (without parser) took 366093.84 ms. Allocated memory was 56.6 MB in the beginning and 337.6 MB in the end (delta: 281.0 MB). Free memory was 31.8 MB in the beginning and 254.4 MB in the end (delta: -222.7 MB). Peak memory consumption was 59.4 MB. Max. memory is 16.1 GB. [2020-12-02 15:47:03,816 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 41.9 MB. Free memory was 19.6 MB in the beginning and 19.5 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-02 15:47:03,818 INFO L168 Benchmark]: CACSL2BoogieTranslator took 854.93 ms. Allocated memory is still 56.6 MB. Free memory was 31.5 MB in the beginning and 27.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. [2020-12-02 15:47:03,819 INFO L168 Benchmark]: Boogie Procedure Inliner took 298.33 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 27.4 MB in the beginning and 35.2 MB in the end (delta: -7.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-12-02 15:47:03,822 INFO L168 Benchmark]: Boogie Preprocessor took 254.43 ms. Allocated memory is still 69.2 MB. Free memory was 35.2 MB in the beginning and 30.8 MB in the end (delta: 4.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. [2020-12-02 15:47:03,823 INFO L168 Benchmark]: RCFGBuilder took 79110.98 ms. Allocated memory was 69.2 MB in the beginning and 337.6 MB in the end (delta: 268.4 MB). Free memory was 30.8 MB in the beginning and 264.0 MB in the end (delta: -233.2 MB). Peak memory consumption was 202.4 MB. Max. memory is 16.1 GB. [2020-12-02 15:47:03,824 INFO L168 Benchmark]: TraceAbstraction took 285561.60 ms. Allocated memory is still 337.6 MB. Free memory was 264.0 MB in the beginning and 254.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2020-12-02 15:47:03,831 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 41.9 MB. Free memory was 19.6 MB in the beginning and 19.5 MB in the end (delta: 31.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 854.93 ms. Allocated memory is still 56.6 MB. Free memory was 31.5 MB in the beginning and 27.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 298.33 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 27.4 MB in the beginning and 35.2 MB in the end (delta: -7.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 254.43 ms. Allocated memory is still 69.2 MB. Free memory was 35.2 MB in the beginning and 30.8 MB in the end (delta: 4.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 79110.98 ms. Allocated memory was 69.2 MB in the beginning and 337.6 MB in the end (delta: 268.4 MB). Free memory was 30.8 MB in the beginning and 264.0 MB in the end (delta: -233.2 MB). Peak memory consumption was 202.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 285561.60 ms. Allocated memory is still 337.6 MB. Free memory was 264.0 MB in the beginning and 254.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) 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...