./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-esbmc-regression/fmin.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/floats-esbmc-regression/fmin.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 6b32ff5488f5edf578907b7a024aff08846acf7b ............................................................................................................................................................. 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 -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 ../sv-benchmarks/c/floats-esbmc-regression/fmin.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 6b32ff5488f5edf578907b7a024aff08846acf7b ........................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-27 23:39:45,665 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:39:45,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:39:45,681 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:39:45,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:39:45,683 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:39:45,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:39:45,686 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:39:45,689 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:39:45,690 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:39:45,691 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:39:45,692 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:39:45,693 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:39:45,694 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:39:45,697 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:39:45,698 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:39:45,699 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:39:45,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:39:45,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:39:45,705 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:39:45,707 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:39:45,711 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:39:45,714 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:39:45,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:39:45,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:39:45,724 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:39:45,725 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:39:45,726 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:39:45,727 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:39:45,729 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:39:45,730 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:39:45,731 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:39:45,732 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:39:45,733 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:39:45,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:39:45,737 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:39:45,738 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:39:45,739 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:39:45,739 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:39:45,743 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:39:45,744 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:39:45,746 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 23:39:45,769 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:39:45,770 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:39:45,773 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:39:45,773 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:39:45,773 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:39:45,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:39:45,774 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:39:45,774 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 23:39:45,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:39:45,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:39:45,776 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:39:45,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:39:45,777 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:39:45,777 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:39:45,778 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:39:45,778 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:39:45,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:39:45,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:39:45,779 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:39:45,779 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:39:45,780 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:39:45,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:39:45,780 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:39:45,781 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:39:45,781 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:39:45,781 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 23:39:45,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 23:39:45,782 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:39:45,782 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 6b32ff5488f5edf578907b7a024aff08846acf7b [2019-11-27 23:39:46,162 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:39:46,186 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:39:46,190 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:39:46,192 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:39:46,192 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:39:46,193 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/fmin.i [2019-11-27 23:39:46,276 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45f23a463/28abc44cf69f4af2a7f6aa2980d36a2b/FLAGb7429d866 [2019-11-27 23:39:46,812 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:39:46,814 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/fmin.i [2019-11-27 23:39:46,830 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45f23a463/28abc44cf69f4af2a7f6aa2980d36a2b/FLAGb7429d866 [2019-11-27 23:39:47,130 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/45f23a463/28abc44cf69f4af2a7f6aa2980d36a2b [2019-11-27 23:39:47,133 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:39:47,135 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:39:47,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:39:47,137 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:39:47,141 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:39:47,142 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:39:47" (1/1) ... [2019-11-27 23:39:47,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@370441c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:39:47, skipping insertion in model container [2019-11-27 23:39:47,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:39:47" (1/1) ... [2019-11-27 23:39:47,155 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:39:47,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:39:47,864 FATAL L? ?]: 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: fmin at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherBinaryFloatOperation(IntegerTranslation.java:853) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleBinaryFloatFunction(StandardFunctionHandler.java:1653) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:211) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1385) 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:697) 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.transformDispatchDecaySwitchRexBoolToInt(ExpressionResultTransformer.java:174) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:676) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:509) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1392) 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:1336) 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:1029) 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:1407) 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:3464) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:571) 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:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:125) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-27 23:39:47,876 INFO L168 Benchmark]: Toolchain (without parser) took 738.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -144.2 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. [2019-11-27 23:39:47,877 INFO L168 Benchmark]: CDTParser took 0.69 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:39:47,879 INFO L168 Benchmark]: CACSL2BoogieTranslator took 735.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -149.6 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:39:47,882 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 735.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 113.2 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -149.6 MB). Peak memory consumption was 26.7 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: fmin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fmin: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherBinaryFloatOperation(IntegerTranslation.java:853) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-30f4e4a [2019-11-27 23:39:49,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:39:49,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:39:49,910 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:39:49,911 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:39:49,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:39:49,915 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:39:49,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:39:49,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:39:49,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:39:49,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:39:49,941 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:39:49,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:39:49,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:39:49,947 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:39:49,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:39:49,951 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:39:49,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:39:49,955 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:39:49,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:39:49,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:39:49,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:39:49,970 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:39:49,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:39:49,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:39:49,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:39:49,978 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:39:49,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:39:49,981 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:39:49,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:39:49,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:39:49,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:39:49,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:39:49,985 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:39:49,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:39:49,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:39:49,989 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:39:49,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:39:49,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:39:49,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:39:49,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:39:49,993 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 23:39:50,028 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:39:50,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:39:50,032 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:39:50,032 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:39:50,033 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:39:50,033 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:39:50,036 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:39:50,036 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:39:50,037 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:39:50,037 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:39:50,037 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:39:50,037 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:39:50,037 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 23:39:50,038 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 23:39:50,038 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:39:50,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:39:50,038 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:39:50,038 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:39:50,040 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:39:50,041 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:39:50,042 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:39:50,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:39:50,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:39:50,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:39:50,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:39:50,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:39:50,044 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 23:39:50,044 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 23:39:50,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:39:50,045 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 23:39:50,045 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 -> 6b32ff5488f5edf578907b7a024aff08846acf7b [2019-11-27 23:39:50,422 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:39:50,449 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:39:50,453 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:39:50,455 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:39:50,456 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:39:50,457 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/fmin.i [2019-11-27 23:39:50,530 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb9cfa7e7/a06671d3ca004542828477eccf1580f7/FLAG250bea247 [2019-11-27 23:39:51,105 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:39:51,106 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/fmin.i [2019-11-27 23:39:51,129 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb9cfa7e7/a06671d3ca004542828477eccf1580f7/FLAG250bea247 [2019-11-27 23:39:51,346 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb9cfa7e7/a06671d3ca004542828477eccf1580f7 [2019-11-27 23:39:51,350 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:39:51,351 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:39:51,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:39:51,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:39:51,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:39:51,358 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:39:51" (1/1) ... [2019-11-27 23:39:51,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63cff6e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:39:51, skipping insertion in model container [2019-11-27 23:39:51,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:39:51" (1/1) ... [2019-11-27 23:39:51,370 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:39:51,415 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:39:52,142 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:39:52,150 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:39:52,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:39:52,536 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:39:52,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:39:52 WrapperNode [2019-11-27 23:39:52,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:39:52,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:39:52,538 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:39:52,538 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:39:52,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:39:52" (1/1) ... [2019-11-27 23:39:52,576 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:39:52" (1/1) ... [2019-11-27 23:39:52,613 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:39:52,613 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:39:52,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:39:52,614 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:39:52,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:39:52" (1/1) ... [2019-11-27 23:39:52,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:39:52" (1/1) ... [2019-11-27 23:39:52,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:39:52" (1/1) ... [2019-11-27 23:39:52,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:39:52" (1/1) ... [2019-11-27 23:39:52,632 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:39:52" (1/1) ... [2019-11-27 23:39:52,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:39:52" (1/1) ... [2019-11-27 23:39:52,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:39:52" (1/1) ... [2019-11-27 23:39:52,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:39:52,643 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:39:52,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:39:52,644 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:39:52,645 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:39:52" (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 [2019-11-27 23:39:52,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:39:52,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:39:52,946 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:39:52,946 INFO L297 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-27 23:39:52,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:39:52 BoogieIcfgContainer [2019-11-27 23:39:52,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:39:52,951 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:39:52,952 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:39:52,957 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:39:52,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:39:51" (1/3) ... [2019-11-27 23:39:52,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ee8994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:39:52, skipping insertion in model container [2019-11-27 23:39:52,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:39:52" (2/3) ... [2019-11-27 23:39:52,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ee8994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:39:52, skipping insertion in model container [2019-11-27 23:39:52,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:39:52" (3/3) ... [2019-11-27 23:39:52,965 INFO L109 eAbstractionObserver]: Analyzing ICFG fmin.i [2019-11-27 23:39:52,981 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:39:52,998 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-27 23:39:53,030 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-27 23:39:53,064 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:39:53,065 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:39:53,065 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:39:53,065 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:39:53,065 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:39:53,066 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:39:53,066 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:39:53,066 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:39:53,083 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-27 23:39:53,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-27 23:39:53,089 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:39:53,090 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-27 23:39:53,091 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:39:53,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:39:53,096 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2019-11-27 23:39:53,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:39:53,106 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [730570271] [2019-11-27 23:39:53,107 INFO L94 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 [2019-11-27 23:39:53,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:39:53,163 INFO L255 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-27 23:39:53,168 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:39:53,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:39:53,230 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:39:53,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:39:53,259 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [730570271] [2019-11-27 23:39:53,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:39:53,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-27 23:39:53,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003899940] [2019-11-27 23:39:53,269 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-27 23:39:53,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:39:53,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-27 23:39:53,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 23:39:53,283 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 4 states. [2019-11-27 23:39:53,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:39:53,367 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2019-11-27 23:39:53,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-27 23:39:53,369 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-27 23:39:53,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:39:53,375 INFO L225 Difference]: With dead ends: 29 [2019-11-27 23:39:53,376 INFO L226 Difference]: Without dead ends: 0 [2019-11-27 23:39:53,380 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-27 23:39:53,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-27 23:39:53,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-27 23:39:53,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-27 23:39:53,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-27 23:39:53,403 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-11-27 23:39:53,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:39:53,403 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-27 23:39:53,403 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-27 23:39:53,404 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-27 23:39:53,404 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-27 23:39:53,620 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-27 23:39:53,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-27 23:39:53,688 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-27 23:39:53,688 INFO L242 CegarLoopResult]: At program point L867-3(line 867) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-11-27 23:39:53,689 INFO L246 CegarLoopResult]: For program point L867-4(line 867) no Hoare annotation was computed. [2019-11-27 23:39:53,689 INFO L246 CegarLoopResult]: For program point L867-5(line 867) no Hoare annotation was computed. [2019-11-27 23:39:53,689 INFO L242 CegarLoopResult]: At program point L867-7(line 867) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-11-27 23:39:53,689 INFO L246 CegarLoopResult]: For program point L867-8(line 867) no Hoare annotation was computed. [2019-11-27 23:39:53,689 INFO L246 CegarLoopResult]: For program point L867-9(line 867) no Hoare annotation was computed. [2019-11-27 23:39:53,690 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 867) no Hoare annotation was computed. [2019-11-27 23:39:53,690 INFO L242 CegarLoopResult]: At program point L867-11(line 867) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-11-27 23:39:53,690 INFO L246 CegarLoopResult]: For program point L867-12(line 867) no Hoare annotation was computed. [2019-11-27 23:39:53,690 INFO L246 CegarLoopResult]: For program point L867-13(line 867) no Hoare annotation was computed. [2019-11-27 23:39:53,691 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 867) no Hoare annotation was computed. [2019-11-27 23:39:53,691 INFO L242 CegarLoopResult]: At program point L867-15(lines 1 875) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-11-27 23:39:53,691 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-27 23:39:53,691 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-27 23:39:53,692 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-27 23:39:53,692 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 867) no Hoare annotation was computed. [2019-11-27 23:39:53,692 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 867) no Hoare annotation was computed. [2019-11-27 23:39:53,692 INFO L246 CegarLoopResult]: For program point L867(line 867) no Hoare annotation was computed. [2019-11-27 23:39:53,692 INFO L246 CegarLoopResult]: For program point L867-1(line 867) no Hoare annotation was computed. [2019-11-27 23:39:53,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:39:53 BoogieIcfgContainer [2019-11-27 23:39:53,709 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:39:53,709 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:39:53,709 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:39:53,710 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:39:53,710 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:39:52" (3/4) ... [2019-11-27 23:39:53,713 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-27 23:39:53,725 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-11-27 23:39:53,725 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-27 23:39:53,770 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 23:39:53,770 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:39:53,773 INFO L168 Benchmark]: Toolchain (without parser) took 2420.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 961.7 MB in the beginning and 987.9 MB in the end (delta: -26.2 MB). Peak memory consumption was 122.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:39:53,774 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:39:53,775 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1184.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 956.3 MB in the beginning and 1.0 GB in the end (delta: -88.2 MB). Peak memory consumption was 71.5 MB. Max. memory is 11.5 GB. [2019-11-27 23:39:53,776 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:39:53,776 INFO L168 Benchmark]: Boogie Preprocessor took 29.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:39:53,777 INFO L168 Benchmark]: RCFGBuilder took 305.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2019-11-27 23:39:53,778 INFO L168 Benchmark]: TraceAbstraction took 757.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 987.9 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. [2019-11-27 23:39:53,779 INFO L168 Benchmark]: Witness Printer took 61.01 ms. Allocated memory is still 1.2 GB. Free memory is still 987.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:39:53,783 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1184.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 956.3 MB in the beginning and 1.0 GB in the end (delta: -88.2 MB). Peak memory consumption was 71.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.84 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 305.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 757.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 987.9 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 11.5 GB. * Witness Printer took 61.01 ms. Allocated memory is still 1.2 GB. Free memory is still 987.9 MB. 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 - PositiveResult [Line: 867]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 867]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - 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 4 specifications checked. All of them hold - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - InvariantResult [Line: 867]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - InvariantResult [Line: 867]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - InvariantResult [Line: 867]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 4 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 7 SDtfs, 12 SDslu, 1 SDs, 0 SdLazy, 4 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 20 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 39 SizeOfPredicates, 4 NumberOfNonLiveVariables, 7 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...