./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_knuth.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_knuth.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f966bbb701fa0020ebf49f98d5faa7f02bbc3a28868891c6c7ff0a45fb5b1ff --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:20:37,447 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:20:37,512 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 05:20:37,518 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:20:37,518 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:20:37,561 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:20:37,562 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:20:37,562 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:20:37,563 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:20:37,563 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:20:37,564 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:20:37,564 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:20:37,565 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:20:37,565 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:20:37,565 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:20:37,565 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:20:37,565 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:20:37,565 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:20:37,566 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:20:37,567 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:20:37,567 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:20:37,567 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:20:37,567 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:20:37,567 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:20:37,567 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 05:20:37,567 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 05:20:37,567 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:20:37,568 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:20:37,568 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:20:37,568 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:20:37,568 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:20:37,568 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:20:37,568 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:20:37,568 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:20:37,568 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:20:37,568 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:20:37,569 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:20:37,570 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:20:37,570 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:20:37,570 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:20:37,570 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:20:37,570 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:20:37,571 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:20:37,571 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:20:37,571 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:20:37,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:20:37,571 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:20:37,571 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:20:37,571 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:20:37,571 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:20:37,571 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 ! overflow) ) 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 -> 4f966bbb701fa0020ebf49f98d5faa7f02bbc3a28868891c6c7ff0a45fb5b1ff [2024-11-28 05:20:37,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:20:37,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:20:37,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:20:37,908 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:20:37,909 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:20:37,911 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/recursified_nla-digbench/recursified_knuth.i [2024-11-28 05:20:41,037 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/bin/uautomizer-verify-aQ6SnzHsRB/data/9f08c22fb/f7f331fa0a724b88842c0a846f733abe/FLAG20fa37bf2 [2024-11-28 05:20:41,316 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:20:41,317 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/sv-benchmarks/c/recursified_nla-digbench/recursified_knuth.i [2024-11-28 05:20:41,326 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/bin/uautomizer-verify-aQ6SnzHsRB/data/9f08c22fb/f7f331fa0a724b88842c0a846f733abe/FLAG20fa37bf2 [2024-11-28 05:20:41,615 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/bin/uautomizer-verify-aQ6SnzHsRB/data/9f08c22fb/f7f331fa0a724b88842c0a846f733abe [2024-11-28 05:20:41,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:20:41,620 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:20:41,621 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:20:41,621 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:20:41,627 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:20:41,628 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:20:41" (1/1) ... [2024-11-28 05:20:41,629 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@721e0264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:41, skipping insertion in model container [2024-11-28 05:20:41,629 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:20:41" (1/1) ... [2024-11-28 05:20:41,654 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:20:41,863 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:629) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:3128) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:255) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1602) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:271) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:783) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1507) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:224) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1158) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1141) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:393) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1629) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3507) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2500) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:641) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:135) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:189) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:145) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-28 05:20:41,872 INFO L158 Benchmark]: Toolchain (without parser) took 249.91ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 82.0MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:20:41,873 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 117.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:20:41,874 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.13ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 82.0MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:20:41,875 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 117.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 247.13ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 82.0MB in the end (delta: 10.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * 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:629) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_knuth.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f966bbb701fa0020ebf49f98d5faa7f02bbc3a28868891c6c7ff0a45fb5b1ff --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:20:44,477 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:20:44,598 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2024-11-28 05:20:44,604 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:20:44,605 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:20:44,644 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:20:44,646 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:20:44,646 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:20:44,647 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:20:44,647 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:20:44,647 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:20:44,649 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:20:44,649 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:20:44,649 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:20:44,649 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:20:44,649 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:20:44,650 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:20:44,650 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:20:44,650 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:20:44,650 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:20:44,650 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:20:44,650 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:20:44,650 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:20:44,650 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 05:20:44,650 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 05:20:44,650 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 05:20:44,650 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 05:20:44,650 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 05:20:44,651 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:20:44,651 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:20:44,651 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:20:44,651 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:20:44,651 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:20:44,651 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:20:44,651 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:20:44,651 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:20:44,651 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:20:44,651 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:20:44,651 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:20:44,651 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:20:44,653 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:20:44,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:20:44,653 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:20:44,654 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:20:44,654 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:20:44,654 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:20:44,654 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 05:20:44,654 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 05:20:44,655 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:20:44,655 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:20:44,655 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:20:44,655 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:20:44,656 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 ! overflow) ) 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 -> 4f966bbb701fa0020ebf49f98d5faa7f02bbc3a28868891c6c7ff0a45fb5b1ff [2024-11-28 05:20:45,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:20:45,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:20:45,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:20:45,025 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:20:45,026 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:20:45,027 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/recursified_nla-digbench/recursified_knuth.i [2024-11-28 05:20:48,156 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/bin/uautomizer-verify-aQ6SnzHsRB/data/6812d5d02/cf73aaaa66c94882aac11ea4b922fe4b/FLAGa10f3e8d6 [2024-11-28 05:20:48,402 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:20:48,403 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/sv-benchmarks/c/recursified_nla-digbench/recursified_knuth.i [2024-11-28 05:20:48,411 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/bin/uautomizer-verify-aQ6SnzHsRB/data/6812d5d02/cf73aaaa66c94882aac11ea4b922fe4b/FLAGa10f3e8d6 [2024-11-28 05:20:48,427 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/bin/uautomizer-verify-aQ6SnzHsRB/data/6812d5d02/cf73aaaa66c94882aac11ea4b922fe4b [2024-11-28 05:20:48,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:20:48,432 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:20:48,434 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:20:48,434 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:20:48,439 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:20:48,440 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:20:48" (1/1) ... [2024-11-28 05:20:48,441 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20529072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:48, skipping insertion in model container [2024-11-28 05:20:48,442 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:20:48" (1/1) ... [2024-11-28 05:20:48,462 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:20:48,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:20:48,740 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:20:48,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:20:48,809 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:20:48,810 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:48 WrapperNode [2024-11-28 05:20:48,810 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:20:48,811 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:20:48,812 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:20:48,812 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:20:48,824 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:48" (1/1) ... [2024-11-28 05:20:48,841 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:48" (1/1) ... [2024-11-28 05:20:48,875 INFO L138 Inliner]: procedures = 22, calls = 178, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 106 [2024-11-28 05:20:48,876 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:20:48,877 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:20:48,877 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:20:48,877 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:20:48,886 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:48" (1/1) ... [2024-11-28 05:20:48,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:48" (1/1) ... [2024-11-28 05:20:48,896 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:48" (1/1) ... [2024-11-28 05:20:48,915 INFO L175 MemorySlicer]: Split 141 memory accesses to 10 slices as follows [2, 24, 8, 2, 32, 16, 20, 9, 7, 21]. 23 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 0, 8, 0, 0, 0, 0, 0, 0, 0]. The 27 writes are split as follows [0, 5, 0, 1, 5, 5, 5, 1, 1, 4]. [2024-11-28 05:20:48,915 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:48" (1/1) ... [2024-11-28 05:20:48,915 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:48" (1/1) ... [2024-11-28 05:20:48,951 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:48" (1/1) ... [2024-11-28 05:20:48,952 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:48" (1/1) ... [2024-11-28 05:20:48,955 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:48" (1/1) ... [2024-11-28 05:20:48,961 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:48" (1/1) ... [2024-11-28 05:20:48,963 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:48" (1/1) ... [2024-11-28 05:20:48,975 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:20:48,976 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:20:48,976 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:20:48,976 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:20:48,977 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:48" (1/1) ... [2024-11-28 05:20:48,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:20:49,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:20:49,026 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:20:49,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:20:49,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:20:49,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 05:20:49,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 05:20:49,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-28 05:20:49,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-28 05:20:49,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-28 05:20:49,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-28 05:20:49,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-28 05:20:49,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-28 05:20:49,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-28 05:20:49,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-28 05:20:49,060 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 05:20:49,060 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 05:20:49,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 05:20:49,061 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_39_to_67_0 [2024-11-28 05:20:49,061 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_39_to_67_0 [2024-11-28 05:20:49,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 05:20:49,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 05:20:49,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-28 05:20:49,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-28 05:20:49,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-28 05:20:49,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-28 05:20:49,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-28 05:20:49,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-28 05:20:49,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-28 05:20:49,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-28 05:20:49,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:20:49,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:20:49,062 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 05:20:49,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 05:20:49,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 05:20:49,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 05:20:49,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 05:20:49,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-28 05:20:49,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-28 05:20:49,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-28 05:20:49,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-28 05:20:49,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-11-28 05:20:49,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-11-28 05:20:49,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-11-28 05:20:49,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2024-11-28 05:20:49,249 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:20:49,251 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:20:54,314 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-28 05:20:54,314 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:20:54,330 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:20:54,332 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 05:20:54,332 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:20:54 BoogieIcfgContainer [2024-11-28 05:20:54,332 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:20:54,336 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:20:54,336 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:20:54,342 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:20:54,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:20:48" (1/3) ... [2024-11-28 05:20:54,343 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f253895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:20:54, skipping insertion in model container [2024-11-28 05:20:54,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:48" (2/3) ... [2024-11-28 05:20:54,345 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f253895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:20:54, skipping insertion in model container [2024-11-28 05:20:54,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:20:54" (3/3) ... [2024-11-28 05:20:54,347 INFO L128 eAbstractionObserver]: Analyzing ICFG recursified_knuth.i [2024-11-28 05:20:54,368 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:20:54,370 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG recursified_knuth.i that has 4 procedures, 44 locations, 1 initial locations, 0 loop locations, and 0 error locations. [2024-11-28 05:20:54,372 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f253895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:20:54, skipping insertion in model container [2024-11-28 05:20:54,372 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 05:20:54,373 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 05:20:54,373 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 05:20:54,373 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 05:20:54,374 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:20:54" (3/3) ... [2024-11-28 05:20:54,377 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 05:20:54,381 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure func_to_recursive_line_39_to_67_0 [2024-11-28 05:20:54,382 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-28 05:20:54,382 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-28 05:20:54,394 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2024-11-28 05:20:54,394 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-28 05:20:54,395 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-28 05:20:54,395 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-28 05:20:54,396 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 05:20:54,535 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 05:20:54,536 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 05:20:54,537 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 05:20:54,541 INFO L158 Benchmark]: Toolchain (without parser) took 6106.18ms. Allocated memory is still 83.9MB. Free memory was 61.1MB in the beginning and 39.5MB in the end (delta: 21.6MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2024-11-28 05:20:54,541 INFO L158 Benchmark]: CDTParser took 0.57ms. Allocated memory is still 83.9MB. Free memory is still 64.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:20:54,542 INFO L158 Benchmark]: CACSL2BoogieTranslator took 377.12ms. Allocated memory is still 83.9MB. Free memory was 61.1MB in the beginning and 46.8MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 05:20:54,542 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.81ms. Allocated memory is still 83.9MB. Free memory was 46.8MB in the beginning and 45.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:20:54,542 INFO L158 Benchmark]: Boogie Preprocessor took 98.49ms. Allocated memory is still 83.9MB. Free memory was 45.3MB in the beginning and 42.2MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:20:54,543 INFO L158 Benchmark]: RCFGBuilder took 5356.39ms. Allocated memory is still 83.9MB. Free memory was 41.9MB in the beginning and 49.6MB in the end (delta: -7.7MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2024-11-28 05:20:54,543 INFO L158 Benchmark]: TraceAbstraction took 36.58ms. Allocated memory is still 83.9MB. Free memory was 49.0MB in the beginning and 47.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:20:54,543 INFO L158 Benchmark]: Witness Printer took 163.94ms. Allocated memory is still 83.9MB. Free memory was 47.1MB in the beginning and 40.0MB in the end (delta: 7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:20:54,549 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57ms. Allocated memory is still 83.9MB. Free memory is still 64.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 377.12ms. Allocated memory is still 83.9MB. Free memory was 61.1MB in the beginning and 46.8MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.81ms. Allocated memory is still 83.9MB. Free memory was 46.8MB in the beginning and 45.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 98.49ms. Allocated memory is still 83.9MB. Free memory was 45.3MB in the beginning and 42.2MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 5356.39ms. Allocated memory is still 83.9MB. Free memory was 41.9MB in the beginning and 49.6MB in the end (delta: -7.7MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * TraceAbstraction took 36.58ms. Allocated memory is still 83.9MB. Free memory was 49.0MB in the beginning and 47.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 163.94ms. Allocated memory is still 83.9MB. Free memory was 47.1MB in the beginning and 40.0MB in the end (delta: 7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specification because the program does not contain any specification. RESULT: Ultimate proved your program to be correct! [2024-11-28 05:20:54,717 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_853db304-095f-429d-b4d2-26c850794664/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE