./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.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/nla-digbench-scaling/knuth_unwindbound20.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5dbde66015432aa67c52448c58a974ac178a7568 ......................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.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/nla-digbench-scaling/knuth_unwindbound20.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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5dbde66015432aa67c52448c58a974ac178a7568 ............................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 01:16:02,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:16:02,402 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:16:02,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:16:02,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:16:02,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:16:02,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:16:02,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:16:02,452 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:16:02,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:16:02,454 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:16:02,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:16:02,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:16:02,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:16:02,456 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:16:02,457 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:16:02,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:16:02,461 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:16:02,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:16:02,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:16:02,472 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:16:02,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:16:02,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:16:02,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:16:02,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:16:02,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:16:02,482 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:16:02,486 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:16:02,487 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:16:02,488 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:16:02,488 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:16:02,489 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:16:02,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:16:02,492 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:16:02,494 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:16:02,494 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:16:02,495 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:16:02,495 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:16:02,495 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:16:02,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:16:02,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:16:02,498 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:16:02,544 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:16:02,545 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:16:02,546 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:16:02,547 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:16:02,547 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:16:02,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:16:02,547 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:16:02,548 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:16:02,548 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:16:02,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:16:02,548 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:16:02,549 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:16:02,549 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:16:02,549 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:16:02,549 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:16:02,550 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:16:02,550 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:16:02,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:16:02,550 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:16:02,551 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:16:02,551 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:16:02,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:16:02,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:16:02,552 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:16:02,552 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:16:02,552 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:16:02,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:16:02,553 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:16:02,553 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:16:02,553 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(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5dbde66015432aa67c52448c58a974ac178a7568 [2020-10-20 01:16:02,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:16:02,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:16:02,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:16:02,771 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:16:02,771 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:16:02,772 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i [2020-10-20 01:16:02,837 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76dc72e6c/0f5fb592aec84358845371a64ad35ce8/FLAGda41920de [2020-10-20 01:16:03,343 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:16:03,344 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i [2020-10-20 01:16:03,349 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76dc72e6c/0f5fb592aec84358845371a64ad35ce8/FLAGda41920de [2020-10-20 01:16:03,704 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76dc72e6c/0f5fb592aec84358845371a64ad35ce8 [2020-10-20 01:16:03,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:16:03,714 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:16:03,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:16:03,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:16:03,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:16:03,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:16:03" (1/1) ... [2020-10-20 01:16:03,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42345cb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:03, skipping insertion in model container [2020-10-20 01:16:03,724 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:16:03" (1/1) ... [2020-10-20 01:16:03,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:16:03,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:16:03,999 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: sqrt at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1690) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:217) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1401) 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:706) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1352) 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:1045) 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:1423) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3209) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2292) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:579) 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:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-10-20 01:16:04,007 INFO L168 Benchmark]: Toolchain (without parser) took 296.25 ms. Allocated memory was 35.1 MB in the beginning and 43.5 MB in the end (delta: 8.4 MB). Free memory was 12.1 MB in the beginning and 28.7 MB in the end (delta: -16.7 MB). Peak memory consumption was 9.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:16:04,008 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 33.6 MB. Free memory was 18.5 MB in the beginning and 18.4 MB in the end (delta: 41.6 kB). Peak memory consumption was 41.6 kB. Max. memory is 14.3 GB. [2020-10-20 01:16:04,009 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.24 ms. Allocated memory was 35.1 MB in the beginning and 43.5 MB in the end (delta: 8.4 MB). Free memory was 11.2 MB in the beginning and 28.7 MB in the end (delta: -17.6 MB). Peak memory consumption was 8.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:16:04,012 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 33.6 MB. Free memory was 18.5 MB in the beginning and 18.4 MB in the end (delta: 41.6 kB). Peak memory consumption was 41.6 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 288.24 ms. Allocated memory was 35.1 MB in the beginning and 43.5 MB in the end (delta: 8.4 MB). Free memory was 11.2 MB in the beginning and 28.7 MB in the end (delta: -17.6 MB). Peak memory consumption was 8.2 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 01:16:05,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:16:05,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:16:05,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:16:05,849 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:16:05,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:16:05,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:16:05,854 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:16:05,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:16:05,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:16:05,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:16:05,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:16:05,860 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:16:05,861 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:16:05,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:16:05,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:16:05,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:16:05,869 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:16:05,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:16:05,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:16:05,885 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:16:05,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:16:05,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:16:05,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:16:05,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:16:05,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:16:05,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:16:05,900 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:16:05,901 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:16:05,902 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:16:05,902 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:16:05,903 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:16:05,904 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:16:05,906 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:16:05,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:16:05,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:16:05,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:16:05,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:16:05,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:16:05,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:16:05,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:16:05,921 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-20 01:16:05,965 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:16:05,965 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:16:05,967 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:16:05,967 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:16:05,967 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:16:05,968 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:16:05,968 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:16:05,968 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:16:05,968 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:16:05,969 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:16:05,969 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:16:05,969 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:16:05,969 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 01:16:05,970 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 01:16:05,970 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:16:05,970 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:16:05,970 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:16:05,971 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:16:05,971 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:16:05,971 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:16:05,972 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:16:05,972 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:16:05,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:16:05,972 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:16:05,973 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:16:05,973 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:16:05,973 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 01:16:05,973 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 01:16:05,974 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:16:05,974 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:16:05,974 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 01:16:05,974 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(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5dbde66015432aa67c52448c58a974ac178a7568 [2020-10-20 01:16:06,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:16:06,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:16:06,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:16:06,247 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:16:06,248 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:16:06,249 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i [2020-10-20 01:16:06,330 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e270d0953/e2f4a38dbc3d495b9ac3b3e8d578f2b6/FLAG88fbb5704 [2020-10-20 01:16:06,840 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:16:06,841 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i [2020-10-20 01:16:06,848 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e270d0953/e2f4a38dbc3d495b9ac3b3e8d578f2b6/FLAG88fbb5704 [2020-10-20 01:16:07,283 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e270d0953/e2f4a38dbc3d495b9ac3b3e8d578f2b6 [2020-10-20 01:16:07,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:16:07,295 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:16:07,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:16:07,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:16:07,302 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:16:07,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:16:07" (1/1) ... [2020-10-20 01:16:07,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e08bd0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:07, skipping insertion in model container [2020-10-20 01:16:07,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:16:07" (1/1) ... [2020-10-20 01:16:07,320 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:16:07,353 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:16:07,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:16:07,699 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:16:07,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:16:07,787 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:16:07,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:07 WrapperNode [2020-10-20 01:16:07,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:16:07,789 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:16:07,789 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:16:07,789 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:16:07,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:07" (1/1) ... [2020-10-20 01:16:07,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:07" (1/1) ... [2020-10-20 01:16:07,836 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:16:07,837 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:16:07,837 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:16:07,837 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:16:07,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:07" (1/1) ... [2020-10-20 01:16:07,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:07" (1/1) ... [2020-10-20 01:16:07,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:07" (1/1) ... [2020-10-20 01:16:07,853 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:07" (1/1) ... [2020-10-20 01:16:07,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:07" (1/1) ... [2020-10-20 01:16:07,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:07" (1/1) ... [2020-10-20 01:16:07,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:07" (1/1) ... [2020-10-20 01:16:07,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:16:07,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:16:07,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:16:07,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:16:07,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:16:07,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:16:07,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:16:07,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_unsigned_int [2020-10-20 01:16:11,055 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:16:11,056 INFO L298 CfgBuilder]: Removed 25 assume(true) statements. [2020-10-20 01:16:11,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:16:11 BoogieIcfgContainer [2020-10-20 01:16:11,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:16:11,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:16:11,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:16:11,063 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:16:11,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:16:07" (1/3) ... [2020-10-20 01:16:11,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4773ecca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:16:11, skipping insertion in model container [2020-10-20 01:16:11,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:07" (2/3) ... [2020-10-20 01:16:11,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4773ecca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:16:11, skipping insertion in model container [2020-10-20 01:16:11,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:16:11" (3/3) ... [2020-10-20 01:16:11,067 INFO L111 eAbstractionObserver]: Analyzing ICFG knuth_unwindbound20.i [2020-10-20 01:16:11,079 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:16:11,087 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-10-20 01:16:11,101 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-10-20 01:16:11,136 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:16:11,136 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:16:11,137 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:16:11,138 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:16:11,138 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:16:11,138 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:16:11,139 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:16:11,139 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:16:11,156 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-10-20 01:16:11,162 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 01:16:11,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 23 states. [2020-10-20 01:16:11,218 INFO L274 CegarLoopResult]: For program point L36(lines 36 59) no Hoare annotation was computed. [2020-10-20 01:16:11,219 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 01:16:11,219 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 01:16:11,219 INFO L277 CegarLoopResult]: At program point L61(lines 17 62) the Hoare annotation is: true [2020-10-20 01:16:11,220 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 01:16:11,220 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 01:16:11,220 INFO L274 CegarLoopResult]: For program point L42(lines 42 59) no Hoare annotation was computed. [2020-10-20 01:16:11,220 INFO L274 CegarLoopResult]: For program point L9(lines 9 12) no Hoare annotation was computed. [2020-10-20 01:16:11,220 INFO L277 CegarLoopResult]: At program point L9-1(lines 8 14) the Hoare annotation is: true [2020-10-20 01:16:11,220 INFO L274 CegarLoopResult]: For program point L9-2(lines 9 12) no Hoare annotation was computed. [2020-10-20 01:16:11,221 INFO L277 CegarLoopResult]: At program point L9-3(lines 8 14) the Hoare annotation is: true [2020-10-20 01:16:11,221 INFO L274 CegarLoopResult]: For program point L5(lines 5 7) no Hoare annotation was computed. [2020-10-20 01:16:11,221 INFO L274 CegarLoopResult]: For program point L9-4(lines 9 12) no Hoare annotation was computed. [2020-10-20 01:16:11,221 INFO L274 CegarLoopResult]: For program point L5-1(lines 5 7) no Hoare annotation was computed. [2020-10-20 01:16:11,221 INFO L277 CegarLoopResult]: At program point L9-5(lines 8 14) the Hoare annotation is: true [2020-10-20 01:16:11,221 INFO L274 CegarLoopResult]: For program point L9-6(lines 9 12) no Hoare annotation was computed. [2020-10-20 01:16:11,222 INFO L277 CegarLoopResult]: At program point L9-7(line 35) the Hoare annotation is: true [2020-10-20 01:16:11,222 INFO L274 CegarLoopResult]: For program point L30-1(lines 30 60) no Hoare annotation was computed. [2020-10-20 01:16:11,222 INFO L274 CegarLoopResult]: For program point L30-3(lines 30 60) no Hoare annotation was computed. [2020-10-20 01:16:11,222 INFO L274 CegarLoopResult]: For program point L47(lines 47 59) no Hoare annotation was computed. [2020-10-20 01:16:11,222 INFO L277 CegarLoopResult]: At program point L47-2(lines 30 60) the Hoare annotation is: true [2020-10-20 01:16:11,223 INFO L274 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-10-20 01:16:11,223 INFO L274 CegarLoopResult]: For program point L6-2(line 6) no Hoare annotation was computed. [2020-10-20 01:16:11,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:16:11 BoogieIcfgContainer [2020-10-20 01:16:11,231 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:16:11,231 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:16:11,231 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:16:11,231 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:16:11,232 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:16:11" (3/4) ... [2020-10-20 01:16:11,235 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 01:16:11,248 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-10-20 01:16:11,249 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-10-20 01:16:11,312 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:16:11,312 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:16:11,315 INFO L168 Benchmark]: Toolchain (without parser) took 4025.91 ms. Allocated memory was 40.9 MB in the beginning and 43.5 MB in the end (delta: 2.6 MB). Free memory was 19.1 MB in the beginning and 14.5 MB in the end (delta: 4.6 MB). Peak memory consumption was 7.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:16:11,316 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 31.5 MB. Free memory was 7.5 MB in the beginning and 7.5 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. [2020-10-20 01:16:11,317 INFO L168 Benchmark]: CACSL2BoogieTranslator took 492.11 ms. Allocated memory was 40.9 MB in the beginning and 41.9 MB in the end (delta: 1.0 MB). Free memory was 18.2 MB in the beginning and 17.3 MB in the end (delta: 864.3 kB). Peak memory consumption was 8.6 MB. Max. memory is 14.3 GB. [2020-10-20 01:16:11,317 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.52 ms. Allocated memory is still 41.9 MB. Free memory was 17.3 MB in the beginning and 15.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. [2020-10-20 01:16:11,318 INFO L168 Benchmark]: Boogie Preprocessor took 35.73 ms. Allocated memory is still 41.9 MB. Free memory was 15.2 MB in the beginning and 13.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 01:16:11,319 INFO L168 Benchmark]: RCFGBuilder took 3185.81 ms. Allocated memory was 41.9 MB in the beginning and 43.5 MB in the end (delta: 1.6 MB). Free memory was 13.6 MB in the beginning and 13.6 MB in the end (delta: 37.8 kB). Peak memory consumption was 3.0 MB. Max. memory is 14.3 GB. [2020-10-20 01:16:11,319 INFO L168 Benchmark]: TraceAbstraction took 170.95 ms. Allocated memory is still 43.5 MB. Free memory was 13.1 MB in the beginning and 18.7 MB in the end (delta: -5.6 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 01:16:11,320 INFO L168 Benchmark]: Witness Printer took 81.44 ms. Allocated memory is still 43.5 MB. Free memory was 18.4 MB in the beginning and 14.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 14.3 GB. [2020-10-20 01:16:11,323 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 31.5 MB. Free memory was 7.5 MB in the beginning and 7.5 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 492.11 ms. Allocated memory was 40.9 MB in the beginning and 41.9 MB in the end (delta: 1.0 MB). Free memory was 18.2 MB in the beginning and 17.3 MB in the end (delta: 864.3 kB). Peak memory consumption was 8.6 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 47.52 ms. Allocated memory is still 41.9 MB. Free memory was 17.3 MB in the beginning and 15.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 35.73 ms. Allocated memory is still 41.9 MB. Free memory was 15.2 MB in the beginning and 13.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * RCFGBuilder took 3185.81 ms. Allocated memory was 41.9 MB in the beginning and 43.5 MB in the end (delta: 1.6 MB). Free memory was 13.6 MB in the beginning and 13.6 MB in the end (delta: 37.8 kB). Peak memory consumption was 3.0 MB. Max. memory is 14.3 GB. * TraceAbstraction took 170.95 ms. Allocated memory is still 43.5 MB. Free memory was 13.1 MB in the beginning and 18.7 MB in the end (delta: -5.6 MB). There was no memory consumed. Max. memory is 14.3 GB. * Witness Printer took 81.44 ms. Allocated memory is still 43.5 MB. Free memory was 18.4 MB in the beginning and 14.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 6 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...