./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/floats-esbmc-regression/fdim_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/floats-esbmc-regression/fdim_true-unreach-call.i -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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 96832dfae97efc9710fb813b6fbaafcdad425138 .......................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/floats-esbmc-regression/fdim_true-unreach-call.i -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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 96832dfae97efc9710fb813b6fbaafcdad425138 ............................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 17:46:38,692 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:46:38,699 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:46:38,714 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:46:38,714 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:46:38,715 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:46:38,716 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:46:38,719 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:46:38,720 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:46:38,721 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:46:38,722 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:46:38,723 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:46:38,724 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:46:38,724 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:46:38,726 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:46:38,727 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:46:38,728 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:46:38,730 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:46:38,733 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:46:38,734 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:46:38,736 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:46:38,737 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:46:38,740 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:46:38,744 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:46:38,744 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:46:38,745 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:46:38,746 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:46:38,748 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:46:38,753 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:46:38,754 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:46:38,754 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:46:38,755 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:46:38,755 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:46:38,755 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:46:38,756 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:46:38,757 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:46:38,759 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 17:46:38,777 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:46:38,778 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:46:38,779 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:46:38,779 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:46:38,779 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:46:38,779 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:46:38,780 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:46:38,780 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:46:38,780 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:46:38,780 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 17:46:38,780 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:46:38,781 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:46:38,781 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:46:38,781 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:46:38,781 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:46:38,781 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:46:38,781 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:46:38,785 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:46:38,785 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:46:38,785 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:46:38,785 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:46:38,785 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:46:38,787 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:46:38,787 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:46:38,787 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:46:38,787 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:46:38,787 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:46:38,788 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 17:46:38,788 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:46:38,788 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 17:46:38,788 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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(__VERIFIER_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 -> 96832dfae97efc9710fb813b6fbaafcdad425138 [2018-11-28 17:46:38,838 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:46:38,856 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:46:38,861 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:46:38,863 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:46:38,863 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:46:38,864 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-esbmc-regression/fdim_true-unreach-call.i [2018-11-28 17:46:38,927 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d8cd8af8/64934e892bf24368b9583a85eb094892/FLAG6ba3bfbe1 [2018-11-28 17:46:39,528 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:46:39,529 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-esbmc-regression/fdim_true-unreach-call.i [2018-11-28 17:46:39,548 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d8cd8af8/64934e892bf24368b9583a85eb094892/FLAG6ba3bfbe1 [2018-11-28 17:46:39,803 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d8cd8af8/64934e892bf24368b9583a85eb094892 [2018-11-28 17:46:39,807 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:46:39,809 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:46:39,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:46:39,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:46:39,815 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:46:39,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:46:39" (1/1) ... [2018-11-28 17:46:39,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cdf83c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:46:39, skipping insertion in model container [2018-11-28 17:46:39,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:46:39" (1/1) ... [2018-11-28 17:46:39,830 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:46:39,878 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:46:40,583 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fdim at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherBinaryFloatOperation(IntegerTranslation.java:852) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleBinaryFloatFunction(StandardFunctionHandler.java:1676) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:208) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1320) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:665) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.dispatchDecaySwitchToRValueFunctionArgument(ExpressionResultTransformer.java:114) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:678) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:508) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1327) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1271) 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:963) 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:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1342) 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:3446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2241) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:539) 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:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:117) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:129) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-28 17:46:40,594 INFO L168 Benchmark]: Toolchain (without parser) took 785.73 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 931.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:46:40,597 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:46:40,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 782.20 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 931.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:46:40,601 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 782.20 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 931.2 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fdim de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fdim: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherBinaryFloatOperation(IntegerTranslation.java:852) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-91b1670 [2018-11-28 17:46:42,891 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:46:42,893 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:46:42,906 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:46:42,907 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:46:42,908 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:46:42,910 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:46:42,912 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:46:42,914 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:46:42,915 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:46:42,916 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:46:42,916 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:46:42,917 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:46:42,918 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:46:42,920 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:46:42,921 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:46:42,922 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:46:42,924 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:46:42,926 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:46:42,927 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:46:42,929 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:46:42,930 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:46:42,932 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:46:42,933 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:46:42,933 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:46:42,934 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:46:42,936 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:46:42,936 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:46:42,937 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:46:42,938 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:46:42,939 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:46:42,941 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:46:42,941 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:46:42,941 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:46:42,944 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:46:42,946 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:46:42,948 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 17:46:42,980 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:46:42,981 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:46:42,981 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:46:42,982 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:46:42,983 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:46:42,983 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:46:42,983 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:46:42,983 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:46:42,983 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:46:42,984 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:46:42,984 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:46:42,984 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:46:42,984 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:46:42,984 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:46:42,984 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 17:46:42,984 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 17:46:42,989 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:46:42,989 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:46:42,990 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:46:42,990 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:46:42,990 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:46:42,990 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:46:42,990 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:46:42,993 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:46:42,993 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:46:42,993 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:46:42,993 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:46:42,994 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:46:42,994 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 17:46:42,994 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:46:42,994 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 17:46:42,994 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 17:46:42,994 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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(__VERIFIER_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 -> 96832dfae97efc9710fb813b6fbaafcdad425138 [2018-11-28 17:46:43,045 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:46:43,060 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:46:43,069 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:46:43,071 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:46:43,071 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:46:43,072 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-esbmc-regression/fdim_true-unreach-call.i [2018-11-28 17:46:43,136 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2d4b2fec/05825b92187f4a32943719ecf62536dd/FLAGf9ea6801c [2018-11-28 17:46:43,743 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:46:43,744 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-esbmc-regression/fdim_true-unreach-call.i [2018-11-28 17:46:43,763 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2d4b2fec/05825b92187f4a32943719ecf62536dd/FLAGf9ea6801c [2018-11-28 17:46:43,956 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2d4b2fec/05825b92187f4a32943719ecf62536dd [2018-11-28 17:46:43,960 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:46:43,962 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:46:43,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:46:43,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:46:43,968 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:46:43,970 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:46:43" (1/1) ... [2018-11-28 17:46:43,973 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6419b89f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:46:43, skipping insertion in model container [2018-11-28 17:46:43,973 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:46:43" (1/1) ... [2018-11-28 17:46:43,982 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:46:44,052 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:46:44,594 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:46:44,602 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:46:44,660 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:46:45,050 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:46:45,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:46:45 WrapperNode [2018-11-28 17:46:45,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:46:45,052 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:46:45,052 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:46:45,052 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:46:45,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:46:45" (1/1) ... [2018-11-28 17:46:45,186 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:46:45" (1/1) ... [2018-11-28 17:46:45,213 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:46:45,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:46:45,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:46:45,214 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:46:45,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:46:45" (1/1) ... [2018-11-28 17:46:45,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:46:45" (1/1) ... [2018-11-28 17:46:45,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:46:45" (1/1) ... [2018-11-28 17:46:45,227 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:46:45" (1/1) ... [2018-11-28 17:46:45,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:46:45" (1/1) ... [2018-11-28 17:46:45,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:46:45" (1/1) ... [2018-11-28 17:46:45,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:46:45" (1/1) ... [2018-11-28 17:46:45,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:46:45,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:46:45,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:46:45,245 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:46:45,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:46:45" (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 [2018-11-28 17:46:45,304 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 17:46:45,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 17:46:45,305 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:46:45,305 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:46:45,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:46:45,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:46:45,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:46:45,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:46:45,527 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:46:45,527 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 17:46:45,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:46:45 BoogieIcfgContainer [2018-11-28 17:46:45,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:46:45,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:46:45,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:46:45,534 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:46:45,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:46:43" (1/3) ... [2018-11-28 17:46:45,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe11f8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:46:45, skipping insertion in model container [2018-11-28 17:46:45,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:46:45" (2/3) ... [2018-11-28 17:46:45,536 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe11f8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:46:45, skipping insertion in model container [2018-11-28 17:46:45,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:46:45" (3/3) ... [2018-11-28 17:46:45,538 INFO L112 eAbstractionObserver]: Analyzing ICFG fdim_true-unreach-call.i [2018-11-28 17:46:45,552 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:46:45,561 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:46:45,585 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:46:45,631 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:46:45,632 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:46:45,632 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:46:45,633 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:46:45,633 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:46:45,633 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:46:45,633 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:46:45,633 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:46:45,633 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:46:45,659 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-11-28 17:46:45,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-28 17:46:45,667 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:46:45,668 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:46:45,672 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:46:45,680 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:46:45,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1083661312, now seen corresponding path program 1 times [2018-11-28 17:46:45,687 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:46:45,688 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy 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 [2018-11-28 17:46:45,705 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:46:45,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:46:45,753 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:46:46,629 WARN L180 SmtUtils]: Spent 795.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 5 [2018-11-28 17:46:46,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:46:46,724 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:46:46,744 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:46:46,745 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 17:46:46,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 17:46:46,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 17:46:46,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 17:46:46,775 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 4 states. [2018-11-28 17:46:47,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:46:47,003 INFO L93 Difference]: Finished difference Result 31 states and 43 transitions. [2018-11-28 17:46:47,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 17:46:47,005 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-11-28 17:46:47,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:46:47,011 INFO L225 Difference]: With dead ends: 31 [2018-11-28 17:46:47,012 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 17:46:47,016 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 17:46:47,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 17:46:47,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 17:46:47,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 17:46:47,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 17:46:47,039 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-11-28 17:46:47,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:46:47,039 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 17:46:47,040 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 17:46:47,040 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 17:46:47,040 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 17:46:47,045 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 17:46:47,212 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 17:46:47,213 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:46:47,213 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:46:47,213 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 17:46:47,213 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:46:47,213 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:46:47,213 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 869 877) the Hoare annotation is: true [2018-11-28 17:46:47,214 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 869 877) no Hoare annotation was computed. [2018-11-28 17:46:47,214 INFO L451 ceAbstractionStarter]: At program point L874(line 874) the Hoare annotation is: true [2018-11-28 17:46:47,214 INFO L451 ceAbstractionStarter]: At program point L873(line 873) the Hoare annotation is: true [2018-11-28 17:46:47,214 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 869 877) no Hoare annotation was computed. [2018-11-28 17:46:47,214 INFO L451 ceAbstractionStarter]: At program point L872(line 872) the Hoare annotation is: true [2018-11-28 17:46:47,214 INFO L451 ceAbstractionStarter]: At program point L871(line 871) the Hoare annotation is: true [2018-11-28 17:46:47,215 INFO L448 ceAbstractionStarter]: For program point L867-3(line 867) no Hoare annotation was computed. [2018-11-28 17:46:47,216 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 867) the Hoare annotation is: true [2018-11-28 17:46:47,217 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 867) no Hoare annotation was computed. [2018-11-28 17:46:47,217 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 867) no Hoare annotation was computed. [2018-11-28 17:46:47,217 INFO L448 ceAbstractionStarter]: For program point L867(line 867) no Hoare annotation was computed. [2018-11-28 17:46:47,217 INFO L448 ceAbstractionStarter]: For program point L867-1(line 867) no Hoare annotation was computed. [2018-11-28 17:46:47,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:46:47 BoogieIcfgContainer [2018-11-28 17:46:47,222 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:46:47,222 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:46:47,222 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:46:47,223 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:46:47,223 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:46:45" (3/4) ... [2018-11-28 17:46:47,229 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 17:46:47,238 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 17:46:47,239 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 17:46:47,239 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-28 17:46:47,244 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-28 17:46:47,245 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 17:46:47,245 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 17:46:47,297 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 17:46:47,297 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:46:47,298 INFO L168 Benchmark]: Toolchain (without parser) took 3337.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -120.5 MB). Peak memory consumption was 16.9 MB. Max. memory is 11.5 GB. [2018-11-28 17:46:47,300 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:46:47,301 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1088.03 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 833.2 MB in the end (delta: 107.4 MB). Peak memory consumption was 107.4 MB. Max. memory is 11.5 GB. [2018-11-28 17:46:47,301 INFO L168 Benchmark]: Boogie Procedure Inliner took 161.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 833.2 MB in the beginning and 1.1 GB in the end (delta: -299.6 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:46:47,303 INFO L168 Benchmark]: Boogie Preprocessor took 30.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:46:47,303 INFO L168 Benchmark]: RCFGBuilder took 283.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:46:47,304 INFO L168 Benchmark]: TraceAbstraction took 1693.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 50.7 MB). Peak memory consumption was 50.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:46:47,306 INFO L168 Benchmark]: Witness Printer took 75.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:46:47,310 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1088.03 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 833.2 MB in the end (delta: 107.4 MB). Peak memory consumption was 107.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 161.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 833.2 MB in the beginning and 1.1 GB in the end (delta: -299.6 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 283.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1693.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 50.7 MB). Peak memory consumption was 50.7 MB. Max. memory is 11.5 GB. * Witness Printer took 75.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 867]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. SAFE Result, 1.6s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 13 SDtfs, 5 SDslu, 19 SDs, 0 SdLazy, 17 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 17 PreInvPairs, 21 NumberOfFragments, 9 HoareAnnotationTreeSize, 17 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 105 SizeOfPredicates, 2 NumberOfNonLiveVariables, 16 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...