./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound5.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_unwindbound5.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 f15ee5be4efdaf752b5a3f2f6caa463996bd64b3 ......................................................................................................................................................... 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_unwindbound5.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 f15ee5be4efdaf752b5a3f2f6caa463996bd64b3 ............................................................................................................................................................................................................................................... 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 01:16:03,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:16:03,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:16:03,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:16:03,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:16:03,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:16:03,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:16:03,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:16:03,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:16:03,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:16:03,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:16:03,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:16:03,109 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:16:03,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:16:03,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:16:03,115 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:16:03,116 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:16:03,117 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:16:03,119 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:16:03,120 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:16:03,122 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:16:03,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:16:03,124 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:16:03,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:16:03,127 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:16:03,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:16:03,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:16:03,139 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:16:03,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:16:03,141 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:16:03,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:16:03,142 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:16:03,143 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:16:03,143 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:16:03,144 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:16:03,144 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:16:03,145 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:16:03,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:16:03,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:16:03,146 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:16:03,147 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:16:03,148 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:16:03,170 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:16:03,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:16:03,172 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:16:03,172 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:16:03,172 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:16:03,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:16:03,172 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:16:03,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:16:03,173 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:16:03,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:16:03,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:16:03,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:16:03,174 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:16:03,174 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:16:03,174 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:16:03,174 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:16:03,174 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:16:03,175 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:16:03,175 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:16:03,175 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:16:03,175 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:16:03,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:16:03,176 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:16:03,176 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:16:03,176 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:16:03,176 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:16:03,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:16:03,177 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:16:03,177 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:16:03,177 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 -> f15ee5be4efdaf752b5a3f2f6caa463996bd64b3 [2020-10-20 01:16:03,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:16:03,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:16:03,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:16:03,406 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:16:03,407 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:16:03,409 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound5.i [2020-10-20 01:16:03,470 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1b3fac20/e244faec4bda4c54a10125f6069b1ca5/FLAG20f036c43 [2020-10-20 01:16:03,929 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:16:03,930 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound5.i [2020-10-20 01:16:03,937 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1b3fac20/e244faec4bda4c54a10125f6069b1ca5/FLAG20f036c43 [2020-10-20 01:16:04,270 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1b3fac20/e244faec4bda4c54a10125f6069b1ca5 [2020-10-20 01:16:04,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:16:04,282 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:16:04,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:16:04,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:16:04,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:16:04,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:16:04" (1/1) ... [2020-10-20 01:16:04,291 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538c025b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:04, skipping insertion in model container [2020-10-20 01:16:04,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:16:04" (1/1) ... [2020-10-20 01:16:04,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:16:04,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:16:04,690 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-10-20 01:16:04,698 INFO L168 Benchmark]: Toolchain (without parser) took 420.46 ms. Allocated memory was 35.1 MB in the beginning and 45.6 MB in the end (delta: 10.5 MB). Free memory was 7.7 MB in the beginning and 30.1 MB in the end (delta: -22.4 MB). Peak memory consumption was 7.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:16:04,699 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 35.1 MB. Free memory is still 12.4 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 01:16:04,700 INFO L168 Benchmark]: CACSL2BoogieTranslator took 411.76 ms. Allocated memory was 35.1 MB in the beginning and 45.6 MB in the end (delta: 10.5 MB). Free memory was 6.8 MB in the beginning and 30.1 MB in the end (delta: -23.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:16:04,703 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 35.1 MB. Free memory is still 12.4 MB. There was no memory consumed. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 411.76 ms. Allocated memory was 35.1 MB in the beginning and 45.6 MB in the end (delta: 10.5 MB). Free memory was 6.8 MB in the beginning and 30.1 MB in the end (delta: -23.3 MB). Peak memory consumption was 6.3 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 01:16:06,705 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:16:06,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:16:06,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:16:06,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:16:06,756 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:16:06,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:16:06,762 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:16:06,764 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:16:06,767 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:16:06,769 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:16:06,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:16:06,771 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:16:06,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:16:06,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:16:06,777 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:16:06,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:16:06,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:16:06,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:16:06,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:16:06,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:16:06,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:16:06,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:16:06,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:16:06,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:16:06,807 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:16:06,807 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:16:06,813 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:16:06,814 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:16:06,815 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:16:06,817 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:16:06,818 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:16:06,819 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:16:06,819 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:16:06,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:16:06,824 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:16:06,824 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:16:06,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:16:06,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:16:06,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:16:06,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:16:06,829 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-20 01:16:06,873 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:16:06,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:16:06,876 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:16:06,876 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:16:06,876 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:16:06,876 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:16:06,877 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:16:06,877 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:16:06,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:16:06,877 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:16:06,878 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:16:06,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:16:06,879 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 01:16:06,879 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 01:16:06,879 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:16:06,879 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:16:06,880 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:16:06,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:16:06,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:16:06,880 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:16:06,881 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:16:06,881 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:16:06,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:16:06,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:16:06,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:16:06,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:16:06,882 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 01:16:06,882 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 01:16:06,882 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:16:06,883 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:16:06,883 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 01:16:06,883 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 -> f15ee5be4efdaf752b5a3f2f6caa463996bd64b3 [2020-10-20 01:16:07,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:16:07,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:16:07,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:16:07,176 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:16:07,177 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:16:07,178 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound5.i [2020-10-20 01:16:07,252 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f26e931e0/f7510ce5c34543e9995469178d0e04db/FLAG083fe4d51 [2020-10-20 01:16:07,785 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:16:07,786 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound5.i [2020-10-20 01:16:07,793 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f26e931e0/f7510ce5c34543e9995469178d0e04db/FLAG083fe4d51 [2020-10-20 01:16:08,126 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f26e931e0/f7510ce5c34543e9995469178d0e04db [2020-10-20 01:16:08,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:16:08,137 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:16:08,138 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:16:08,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:16:08,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:16:08,145 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:16:08" (1/1) ... [2020-10-20 01:16:08,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d7dc614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:08, skipping insertion in model container [2020-10-20 01:16:08,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:16:08" (1/1) ... [2020-10-20 01:16:08,167 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:16:08,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:16:08,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:16:08,439 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:16:08,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:16:08,519 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:16:08,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:08 WrapperNode [2020-10-20 01:16:08,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:16:08,520 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:16:08,520 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:16:08,521 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:16:08,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:08" (1/1) ... [2020-10-20 01:16:08,542 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:08" (1/1) ... [2020-10-20 01:16:08,571 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:16:08,572 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:16:08,572 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:16:08,572 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:16:08,583 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:08" (1/1) ... [2020-10-20 01:16:08,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:08" (1/1) ... [2020-10-20 01:16:08,586 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:08" (1/1) ... [2020-10-20 01:16:08,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:08" (1/1) ... [2020-10-20 01:16:08,594 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:08" (1/1) ... [2020-10-20 01:16:08,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:08" (1/1) ... [2020-10-20 01:16:08,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:08" (1/1) ... [2020-10-20 01:16:08,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:16:08,605 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:16:08,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:16:08,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:16:08,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:08" (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 01:16:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:16:08,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:16:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_unsigned_int [2020-10-20 01:16:12,003 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:16:12,003 INFO L298 CfgBuilder]: Removed 25 assume(true) statements. [2020-10-20 01:16:12,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:16:12 BoogieIcfgContainer [2020-10-20 01:16:12,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:16:12,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:16:12,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:16:12,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:16:12,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:16:08" (1/3) ... [2020-10-20 01:16:12,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d711584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:16:12, skipping insertion in model container [2020-10-20 01:16:12,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:16:08" (2/3) ... [2020-10-20 01:16:12,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d711584 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:16:12, skipping insertion in model container [2020-10-20 01:16:12,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:16:12" (3/3) ... [2020-10-20 01:16:12,014 INFO L111 eAbstractionObserver]: Analyzing ICFG knuth_unwindbound5.i [2020-10-20 01:16:12,026 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:16:12,034 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-10-20 01:16:12,048 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-10-20 01:16:12,073 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:16:12,073 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:16:12,073 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:16:12,074 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:16:12,074 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:16:12,074 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:16:12,074 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:16:12,074 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:16:12,089 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-10-20 01:16:12,096 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 01:16:12,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 23 states. [2020-10-20 01:16:12,158 INFO L274 CegarLoopResult]: For program point L36(lines 36 59) no Hoare annotation was computed. [2020-10-20 01:16:12,158 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 01:16:12,159 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 01:16:12,159 INFO L277 CegarLoopResult]: At program point L61(lines 17 62) the Hoare annotation is: true [2020-10-20 01:16:12,159 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 01:16:12,159 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 01:16:12,159 INFO L274 CegarLoopResult]: For program point L42(lines 42 59) no Hoare annotation was computed. [2020-10-20 01:16:12,160 INFO L274 CegarLoopResult]: For program point L9(lines 9 12) no Hoare annotation was computed. [2020-10-20 01:16:12,160 INFO L277 CegarLoopResult]: At program point L9-1(lines 8 14) the Hoare annotation is: true [2020-10-20 01:16:12,160 INFO L274 CegarLoopResult]: For program point L9-2(lines 9 12) no Hoare annotation was computed. [2020-10-20 01:16:12,160 INFO L277 CegarLoopResult]: At program point L9-3(lines 8 14) the Hoare annotation is: true [2020-10-20 01:16:12,160 INFO L274 CegarLoopResult]: For program point L5(lines 5 7) no Hoare annotation was computed. [2020-10-20 01:16:12,161 INFO L274 CegarLoopResult]: For program point L9-4(lines 9 12) no Hoare annotation was computed. [2020-10-20 01:16:12,161 INFO L274 CegarLoopResult]: For program point L5-1(lines 5 7) no Hoare annotation was computed. [2020-10-20 01:16:12,161 INFO L277 CegarLoopResult]: At program point L9-5(lines 8 14) the Hoare annotation is: true [2020-10-20 01:16:12,161 INFO L274 CegarLoopResult]: For program point L9-6(lines 9 12) no Hoare annotation was computed. [2020-10-20 01:16:12,161 INFO L277 CegarLoopResult]: At program point L9-7(line 35) the Hoare annotation is: true [2020-10-20 01:16:12,161 INFO L274 CegarLoopResult]: For program point L30-1(lines 30 60) no Hoare annotation was computed. [2020-10-20 01:16:12,161 INFO L274 CegarLoopResult]: For program point L30-3(lines 30 60) no Hoare annotation was computed. [2020-10-20 01:16:12,162 INFO L274 CegarLoopResult]: For program point L47(lines 47 59) no Hoare annotation was computed. [2020-10-20 01:16:12,162 INFO L277 CegarLoopResult]: At program point L47-2(lines 30 60) the Hoare annotation is: true [2020-10-20 01:16:12,162 INFO L274 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-10-20 01:16:12,162 INFO L274 CegarLoopResult]: For program point L6-2(line 6) no Hoare annotation was computed. [2020-10-20 01:16:12,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:16:12 BoogieIcfgContainer [2020-10-20 01:16:12,169 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:16:12,170 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:16:12,170 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:16:12,170 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:16:12,171 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:16:12" (3/4) ... [2020-10-20 01:16:12,174 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 01:16:12,187 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-10-20 01:16:12,187 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-10-20 01:16:12,270 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:16:12,271 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:16:12,274 INFO L168 Benchmark]: Toolchain (without parser) took 4140.62 ms. Allocated memory was 43.5 MB in the beginning and 46.7 MB in the end (delta: 3.1 MB). Free memory was 25.3 MB in the beginning and 27.5 MB in the end (delta: -2.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:16:12,280 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 33.0 MB. Free memory was 11.5 MB in the beginning and 11.5 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. [2020-10-20 01:16:12,281 INFO L168 Benchmark]: CACSL2BoogieTranslator took 381.95 ms. Allocated memory was 43.5 MB in the beginning and 44.0 MB in the end (delta: 524.3 kB). Free memory was 24.4 MB in the beginning and 25.3 MB in the end (delta: -878.0 kB). Peak memory consumption was 14.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:16:12,281 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.36 ms. Allocated memory is still 44.0 MB. Free memory was 25.1 MB in the beginning and 23.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. [2020-10-20 01:16:12,282 INFO L168 Benchmark]: Boogie Preprocessor took 32.84 ms. Allocated memory is still 44.0 MB. Free memory was 23.3 MB in the beginning and 21.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. [2020-10-20 01:16:12,284 INFO L168 Benchmark]: RCFGBuilder took 3400.15 ms. Allocated memory was 44.0 MB in the beginning and 46.7 MB in the end (delta: 2.6 MB). Free memory was 21.5 MB in the beginning and 24.3 MB in the end (delta: -2.8 MB). Peak memory consumption was 11.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:16:12,285 INFO L168 Benchmark]: TraceAbstraction took 162.97 ms. Allocated memory is still 46.7 MB. Free memory was 23.8 MB in the beginning and 13.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:16:12,286 INFO L168 Benchmark]: Witness Printer took 101.21 ms. Allocated memory is still 46.7 MB. Free memory was 13.7 MB in the beginning and 27.5 MB in the end (delta: -13.7 MB). Peak memory consumption was 3.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:16:12,295 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 33.0 MB. Free memory was 11.5 MB in the beginning and 11.5 MB in the end (delta: 3.1 kB). Peak memory consumption was 3.1 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 381.95 ms. Allocated memory was 43.5 MB in the beginning and 44.0 MB in the end (delta: 524.3 kB). Free memory was 24.4 MB in the beginning and 25.3 MB in the end (delta: -878.0 kB). Peak memory consumption was 14.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 51.36 ms. Allocated memory is still 44.0 MB. Free memory was 25.1 MB in the beginning and 23.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 32.84 ms. Allocated memory is still 44.0 MB. Free memory was 23.3 MB in the beginning and 21.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. * RCFGBuilder took 3400.15 ms. Allocated memory was 44.0 MB in the beginning and 46.7 MB in the end (delta: 2.6 MB). Free memory was 21.5 MB in the beginning and 24.3 MB in the end (delta: -2.8 MB). Peak memory consumption was 11.3 MB. Max. memory is 14.3 GB. * TraceAbstraction took 162.97 ms. Allocated memory is still 46.7 MB. Free memory was 23.8 MB in the beginning and 13.7 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 14.3 GB. * Witness Printer took 101.21 ms. Allocated memory is still 46.7 MB. Free memory was 13.7 MB in the beginning and 27.5 MB in the end (delta: -13.7 MB). Peak memory consumption was 3.4 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...