./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 f470102c 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 0.1.25-f470102 [2019-11-28 16:44:14,522 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 16:44:14,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 16:44:14,544 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 16:44:14,545 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 16:44:14,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 16:44:14,550 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 16:44:14,560 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 16:44:14,565 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 16:44:14,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 16:44:14,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 16:44:14,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 16:44:14,572 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 16:44:14,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 16:44:14,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 16:44:14,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 16:44:14,579 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 16:44:14,581 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 16:44:14,583 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 16:44:14,587 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 16:44:14,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 16:44:14,596 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 16:44:14,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 16:44:14,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 16:44:14,602 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 16:44:14,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 16:44:14,603 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 16:44:14,605 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 16:44:14,605 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 16:44:14,606 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 16:44:14,606 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 16:44:14,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 16:44:14,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 16:44:14,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 16:44:14,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 16:44:14,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 16:44:14,612 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 16:44:14,612 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 16:44:14,613 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 16:44:14,614 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 16:44:14,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 16:44:14,616 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 16:44:14,652 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 16:44:14,653 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 16:44:14,654 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 16:44:14,657 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 16:44:14,657 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 16:44:14,657 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 16:44:14,658 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 16:44:14,658 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 16:44:14,658 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 16:44:14,659 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 16:44:14,659 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 16:44:14,660 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 16:44:14,660 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 16:44:14,661 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 16:44:14,661 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 16:44:14,661 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 16:44:14,662 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 16:44:14,662 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 16:44:14,662 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 16:44:14,663 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 16:44:14,663 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 16:44:14,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:44:14,663 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 16:44:14,664 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 16:44:14,664 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 16:44:14,664 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 16:44:14,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 16:44:14,665 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 16:44:14,665 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 16:44:14,665 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 [2019-11-28 16:44:14,965 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 16:44:14,983 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 16:44:14,987 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 16:44:14,989 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 16:44:14,991 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 16:44:14,992 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/fmin.i [2019-11-28 16:44:15,068 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7badd10ef/7113c3b64ce74522ae4d12c938c9e109/FLAG2ff52ec3b [2019-11-28 16:44:15,670 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 16:44:15,671 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/fmin.i [2019-11-28 16:44:15,687 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7badd10ef/7113c3b64ce74522ae4d12c938c9e109/FLAG2ff52ec3b [2019-11-28 16:44:15,913 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7badd10ef/7113c3b64ce74522ae4d12c938c9e109 [2019-11-28 16:44:15,916 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 16:44:15,917 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 16:44:15,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 16:44:15,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 16:44:15,923 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 16:44:15,924 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:44:15" (1/1) ... [2019-11-28 16:44:15,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8f83d03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:15, skipping insertion in model container [2019-11-28 16:44:15,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:44:15" (1/1) ... [2019-11-28 16:44:15,935 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 16:44:15,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 16:44:16,561 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:1660) 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:3458) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2276) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-11-28 16:44:16,569 INFO L168 Benchmark]: Toolchain (without parser) took 650.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -184.9 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2019-11-28 16:44:16,570 INFO L168 Benchmark]: CDTParser took 1.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:44:16,571 INFO L168 Benchmark]: CACSL2BoogieTranslator took 646.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -184.9 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2019-11-28 16:44:16,573 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.14 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 646.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -184.9 MB). Peak memory consumption was 26.5 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 0.1.25-f470102 [2019-11-28 16:44:18,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 16:44:18,441 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 16:44:18,459 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 16:44:18,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 16:44:18,462 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 16:44:18,464 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 16:44:18,474 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 16:44:18,479 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 16:44:18,482 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 16:44:18,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 16:44:18,484 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 16:44:18,485 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 16:44:18,486 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 16:44:18,486 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 16:44:18,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 16:44:18,492 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 16:44:18,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 16:44:18,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 16:44:18,500 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 16:44:18,505 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 16:44:18,509 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 16:44:18,512 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 16:44:18,514 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 16:44:18,516 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 16:44:18,517 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 16:44:18,517 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 16:44:18,519 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 16:44:18,519 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 16:44:18,520 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 16:44:18,520 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 16:44:18,521 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 16:44:18,522 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 16:44:18,523 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 16:44:18,525 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 16:44:18,525 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 16:44:18,526 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 16:44:18,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 16:44:18,526 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 16:44:18,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 16:44:18,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 16:44:18,529 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-28 16:44:18,559 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 16:44:18,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 16:44:18,562 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 16:44:18,567 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 16:44:18,567 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 16:44:18,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 16:44:18,568 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 16:44:18,568 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 16:44:18,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 16:44:18,569 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 16:44:18,569 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 16:44:18,569 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 16:44:18,570 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 16:44:18,570 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 16:44:18,570 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 16:44:18,570 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 16:44:18,571 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 16:44:18,571 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 16:44:18,571 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 16:44:18,572 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 16:44:18,572 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 16:44:18,572 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 16:44:18,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 16:44:18,573 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 16:44:18,573 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 16:44:18,573 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 16:44:18,574 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 16:44:18,574 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 16:44:18,574 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 16:44:18,574 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 16:44:18,575 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 16:44:18,575 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 [2019-11-28 16:44:18,880 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 16:44:18,893 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 16:44:18,897 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 16:44:18,899 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 16:44:18,900 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 16:44:18,900 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/fmin.i [2019-11-28 16:44:18,965 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42631dc3b/66608430f6c24a88883ceca20f3c0e9f/FLAG97ce1737b [2019-11-28 16:44:19,537 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 16:44:19,538 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/fmin.i [2019-11-28 16:44:19,554 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42631dc3b/66608430f6c24a88883ceca20f3c0e9f/FLAG97ce1737b [2019-11-28 16:44:19,838 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42631dc3b/66608430f6c24a88883ceca20f3c0e9f [2019-11-28 16:44:19,842 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 16:44:19,844 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 16:44:19,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 16:44:19,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 16:44:19,849 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 16:44:19,850 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:44:19" (1/1) ... [2019-11-28 16:44:19,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@600cef8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:19, skipping insertion in model container [2019-11-28 16:44:19,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:44:19" (1/1) ... [2019-11-28 16:44:19,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 16:44:19,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 16:44:20,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:44:20,543 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 16:44:20,570 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 16:44:20,883 INFO L208 MainTranslator]: Completed translation [2019-11-28 16:44:20,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:20 WrapperNode [2019-11-28 16:44:20,885 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 16:44:20,886 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 16:44:20,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 16:44:20,888 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 16:44:20,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:20" (1/1) ... [2019-11-28 16:44:20,931 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:20" (1/1) ... [2019-11-28 16:44:20,960 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 16:44:20,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 16:44:20,961 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 16:44:20,961 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 16:44:20,970 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:20" (1/1) ... [2019-11-28 16:44:20,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:20" (1/1) ... [2019-11-28 16:44:20,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:20" (1/1) ... [2019-11-28 16:44:20,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:20" (1/1) ... [2019-11-28 16:44:20,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:20" (1/1) ... [2019-11-28 16:44:20,981 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:20" (1/1) ... [2019-11-28 16:44:20,984 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:20" (1/1) ... [2019-11-28 16:44:20,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 16:44:20,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 16:44:20,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 16:44:20,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 16:44:20,992 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:20" (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 [2019-11-28 16:44:21,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 16:44:21,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 16:44:21,269 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 16:44:21,270 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-11-28 16:44:21,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:21 BoogieIcfgContainer [2019-11-28 16:44:21,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 16:44:21,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 16:44:21,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 16:44:21,281 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 16:44:21,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:44:19" (1/3) ... [2019-11-28 16:44:21,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ec8caa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:44:21, skipping insertion in model container [2019-11-28 16:44:21,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:20" (2/3) ... [2019-11-28 16:44:21,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ec8caa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:44:21, skipping insertion in model container [2019-11-28 16:44:21,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:21" (3/3) ... [2019-11-28 16:44:21,287 INFO L109 eAbstractionObserver]: Analyzing ICFG fmin.i [2019-11-28 16:44:21,302 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 16:44:21,319 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-28 16:44:21,343 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-28 16:44:21,376 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 16:44:21,377 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 16:44:21,377 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 16:44:21,377 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 16:44:21,377 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 16:44:21,377 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 16:44:21,378 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 16:44:21,378 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 16:44:21,391 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-28 16:44:21,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-28 16:44:21,396 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 16:44:21,397 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-28 16:44:21,398 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 16:44:21,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 16:44:21,404 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2019-11-28 16:44:21,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 16:44:21,415 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [820902323] [2019-11-28 16:44:21,415 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 [2019-11-28 16:44:21,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 16:44:21,482 INFO L264 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-28 16:44:21,486 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 16:44:21,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:44:21,556 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 16:44:21,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 16:44:21,585 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [820902323] [2019-11-28 16:44:21,586 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 16:44:21,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-11-28 16:44:21,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060796216] [2019-11-28 16:44:21,593 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 16:44:21,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 16:44:21,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 16:44:21,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 16:44:21,611 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 4 states. [2019-11-28 16:44:21,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 16:44:21,684 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2019-11-28 16:44:21,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 16:44:21,686 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-28 16:44:21,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 16:44:21,694 INFO L225 Difference]: With dead ends: 29 [2019-11-28 16:44:21,694 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 16:44:21,698 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 [2019-11-28 16:44:21,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 16:44:21,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 16:44:21,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 16:44:21,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 16:44:21,726 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-11-28 16:44:21,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 16:44:21,726 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 16:44:21,726 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 16:44:21,726 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 16:44:21,727 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 16:44:21,940 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 16:44:21,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 16:44:22,003 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 16:44:22,003 INFO L242 CegarLoopResult]: At program point L867-3(line 867) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-11-28 16:44:22,004 INFO L246 CegarLoopResult]: For program point L867-4(line 867) no Hoare annotation was computed. [2019-11-28 16:44:22,004 INFO L246 CegarLoopResult]: For program point L867-5(line 867) no Hoare annotation was computed. [2019-11-28 16:44:22,004 INFO L242 CegarLoopResult]: At program point L867-7(line 867) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-11-28 16:44:22,005 INFO L246 CegarLoopResult]: For program point L867-8(line 867) no Hoare annotation was computed. [2019-11-28 16:44:22,005 INFO L246 CegarLoopResult]: For program point L867-9(line 867) no Hoare annotation was computed. [2019-11-28 16:44:22,005 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 867) no Hoare annotation was computed. [2019-11-28 16:44:22,006 INFO L242 CegarLoopResult]: At program point L867-11(line 867) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2019-11-28 16:44:22,006 INFO L246 CegarLoopResult]: For program point L867-12(line 867) no Hoare annotation was computed. [2019-11-28 16:44:22,006 INFO L246 CegarLoopResult]: For program point L867-13(line 867) no Hoare annotation was computed. [2019-11-28 16:44:22,007 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 867) no Hoare annotation was computed. [2019-11-28 16:44:22,007 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)) [2019-11-28 16:44:22,007 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-28 16:44:22,007 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 16:44:22,008 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 16:44:22,008 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 867) no Hoare annotation was computed. [2019-11-28 16:44:22,008 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 867) no Hoare annotation was computed. [2019-11-28 16:44:22,008 INFO L246 CegarLoopResult]: For program point L867(line 867) no Hoare annotation was computed. [2019-11-28 16:44:22,008 INFO L246 CegarLoopResult]: For program point L867-1(line 867) no Hoare annotation was computed. [2019-11-28 16:44:22,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:44:22 BoogieIcfgContainer [2019-11-28 16:44:22,025 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 16:44:22,026 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 16:44:22,026 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 16:44:22,026 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 16:44:22,027 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:21" (3/4) ... [2019-11-28 16:44:22,031 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 16:44:22,043 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-11-28 16:44:22,044 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 16:44:22,090 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 16:44:22,090 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 16:44:22,093 INFO L168 Benchmark]: Toolchain (without parser) took 2248.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 955.0 MB in the beginning and 987.5 MB in the end (delta: -32.5 MB). Peak memory consumption was 114.3 MB. Max. memory is 11.5 GB. [2019-11-28 16:44:22,093 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 16:44:22,094 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1040.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 949.6 MB in the beginning and 1.0 GB in the end (delta: -94.0 MB). Peak memory consumption was 63.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:44:22,095 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.24 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:44:22,095 INFO L168 Benchmark]: Boogie Preprocessor took 26.66 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. [2019-11-28 16:44:22,096 INFO L168 Benchmark]: RCFGBuilder took 285.03 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: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. [2019-11-28 16:44:22,097 INFO L168 Benchmark]: TraceAbstraction took 750.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 994.1 MB in the end (delta: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2019-11-28 16:44:22,098 INFO L168 Benchmark]: Witness Printer took 64.27 ms. Allocated memory is still 1.2 GB. Free memory was 994.1 MB in the beginning and 987.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 16:44:22,102 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1040.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 949.6 MB in the beginning and 1.0 GB in the end (delta: -94.0 MB). Peak memory consumption was 63.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 74.24 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.66 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 285.03 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: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 750.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 994.1 MB in the end (delta: 31.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * Witness Printer took 64.27 ms. Allocated memory is still 1.2 GB. Free memory was 994.1 MB in the beginning and 987.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. 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, 0.1s 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...