./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 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_knuth.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/bin/utaipan-verify-nQ1chXbOIh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f966bbb701fa0020ebf49f98d5faa7f02bbc3a28868891c6c7ff0a45fb5b1ff --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 12:54:20,438 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 12:54:20,500 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-12-02 12:54:20,504 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 12:54:20,504 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 12:54:20,526 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 12:54:20,527 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 12:54:20,528 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 12:54:20,528 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 12:54:20,529 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 12:54:20,529 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 12:54:20,530 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 12:54:20,530 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 12:54:20,531 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 12:54:20,531 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 12:54:20,532 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 12:54:20,532 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 12:54:20,533 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 12:54:20,533 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 12:54:20,534 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 12:54:20,534 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 12:54:20,535 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 12:54:20,536 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 12:54:20,536 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 12:54:20,536 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 12:54:20,537 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 12:54:20,537 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 12:54:20,538 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 12:54:20,538 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 12:54:20,538 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 12:54:20,539 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 12:54:20,539 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 12:54:20,539 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 12:54:20,540 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 12:54:20,540 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 12:54:20,540 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 12:54:20,541 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 12:54:20,541 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 12:54:20,541 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 12:54:20,541 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:54:20,541 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 12:54:20,542 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 12:54:20,542 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 12:54:20,542 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 12:54:20,542 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 12:54:20,543 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 12:54:20,543 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 12:54:20,543 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 12:54:20,543 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 12:54:20,543 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f966bbb701fa0020ebf49f98d5faa7f02bbc3a28868891c6c7ff0a45fb5b1ff [2023-12-02 12:54:20,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 12:54:20,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 12:54:20,806 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 12:54:20,808 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 12:54:20,808 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 12:54:20,809 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/recursified_nla-digbench/recursified_knuth.i [2023-12-02 12:54:23,550 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 12:54:23,717 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 12:54:23,718 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/sv-benchmarks/c/recursified_nla-digbench/recursified_knuth.i [2023-12-02 12:54:23,726 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/bin/utaipan-verify-nQ1chXbOIh/data/b33f2f36e/81c63701fbff414e85355b9a7849102f/FLAG9da075671 [2023-12-02 12:54:23,741 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/bin/utaipan-verify-nQ1chXbOIh/data/b33f2f36e/81c63701fbff414e85355b9a7849102f [2023-12-02 12:54:23,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 12:54:23,745 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 12:54:23,746 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 12:54:23,746 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 12:54:23,751 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 12:54:23,752 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:54:23" (1/1) ... [2023-12-02 12:54:23,753 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a49ae10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:54:23, skipping insertion in model container [2023-12-02 12:54:23,753 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:54:23" (1/1) ... [2023-12-02 12:54:23,778 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 12:54:23,937 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:610) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:2220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:245) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1486) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:269) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:284) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1427) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:222) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:386) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1512) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:157) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3421) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2441) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:611) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:133) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:117) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:147) 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) [2023-12-02 12:54:23,941 INFO L158 Benchmark]: Toolchain (without parser) took 195.69ms. Allocated memory is still 134.2MB. Free memory was 95.6MB in the beginning and 85.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 12:54:23,942 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 134.2MB. Free memory was 105.3MB in the beginning and 105.1MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 12:54:23,943 INFO L158 Benchmark]: CACSL2BoogieTranslator took 193.72ms. Allocated memory is still 134.2MB. Free memory was 95.2MB in the beginning and 85.5MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 12:54:23,944 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 134.2MB. Free memory was 105.3MB in the beginning and 105.1MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 193.72ms. Allocated memory is still 134.2MB. Free memory was 95.2MB in the beginning and 85.5MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. 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:610) 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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_knuth.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/bin/utaipan-verify-nQ1chXbOIh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f966bbb701fa0020ebf49f98d5faa7f02bbc3a28868891c6c7ff0a45fb5b1ff --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 12:54:25,716 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 12:54:25,789 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf [2023-12-02 12:54:25,795 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 12:54:25,795 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 12:54:25,821 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 12:54:25,822 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 12:54:25,823 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 12:54:25,823 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 12:54:25,824 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 12:54:25,825 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 12:54:25,825 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 12:54:25,826 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 12:54:25,826 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 12:54:25,827 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 12:54:25,827 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 12:54:25,828 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 12:54:25,829 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 12:54:25,829 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 12:54:25,830 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 12:54:25,830 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 12:54:25,831 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 12:54:25,831 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 12:54:25,832 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 12:54:25,832 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 12:54:25,833 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 12:54:25,833 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 12:54:25,834 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 12:54:25,834 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 12:54:25,835 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 12:54:25,835 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 12:54:25,835 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 12:54:25,836 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 12:54:25,836 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 12:54:25,836 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 12:54:25,836 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 12:54:25,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:54:25,837 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 12:54:25,837 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 12:54:25,837 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 12:54:25,838 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 12:54:25,838 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 12:54:25,838 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 12:54:25,838 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 12:54:25,838 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 12:54:25,839 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 12:54:25,839 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f966bbb701fa0020ebf49f98d5faa7f02bbc3a28868891c6c7ff0a45fb5b1ff [2023-12-02 12:54:26,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 12:54:26,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 12:54:26,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 12:54:26,143 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 12:54:26,143 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 12:54:26,145 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/recursified_nla-digbench/recursified_knuth.i [2023-12-02 12:54:28,960 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 12:54:29,156 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 12:54:29,157 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/sv-benchmarks/c/recursified_nla-digbench/recursified_knuth.i [2023-12-02 12:54:29,166 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/bin/utaipan-verify-nQ1chXbOIh/data/17772ee36/9a9dc5181f07432eb76b95444d052df6/FLAGf62313f56 [2023-12-02 12:54:29,181 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/bin/utaipan-verify-nQ1chXbOIh/data/17772ee36/9a9dc5181f07432eb76b95444d052df6 [2023-12-02 12:54:29,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 12:54:29,185 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 12:54:29,187 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 12:54:29,187 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 12:54:29,192 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 12:54:29,192 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:54:29" (1/1) ... [2023-12-02 12:54:29,193 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@547275c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:54:29, skipping insertion in model container [2023-12-02 12:54:29,193 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:54:29" (1/1) ... [2023-12-02 12:54:29,219 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 12:54:29,397 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:54:29,413 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 12:54:29,453 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:54:29,468 INFO L206 MainTranslator]: Completed translation [2023-12-02 12:54:29,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:54:29 WrapperNode [2023-12-02 12:54:29,469 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 12:54:29,470 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 12:54:29,470 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 12:54:29,470 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 12:54:29,476 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:54:29" (1/1) ... [2023-12-02 12:54:29,491 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:54:29" (1/1) ... [2023-12-02 12:54:29,513 INFO L138 Inliner]: procedures = 22, calls = 178, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 106 [2023-12-02 12:54:29,514 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 12:54:29,514 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 12:54:29,515 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 12:54:29,515 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 12:54:29,522 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:54:29" (1/1) ... [2023-12-02 12:54:29,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:54:29" (1/1) ... [2023-12-02 12:54:29,529 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:54:29" (1/1) ... [2023-12-02 12:54:29,530 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:54:29" (1/1) ... [2023-12-02 12:54:29,546 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:54:29" (1/1) ... [2023-12-02 12:54:29,549 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:54:29" (1/1) ... [2023-12-02 12:54:29,553 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:54:29" (1/1) ... [2023-12-02 12:54:29,555 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:54:29" (1/1) ... [2023-12-02 12:54:29,561 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 12:54:29,562 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 12:54:29,562 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 12:54:29,562 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 12:54:29,563 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:54:29" (1/1) ... [2023-12-02 12:54:29,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:54:29,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:54:29,589 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 12:54:29,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 12:54:29,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 12:54:29,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 12:54:29,624 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 12:54:29,625 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 12:54:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 12:54:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_39_to_67_0 [2023-12-02 12:54:29,625 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_39_to_67_0 [2023-12-02 12:54:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 12:54:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 12:54:29,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 12:54:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 12:54:29,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 12:54:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 12:54:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 12:54:29,780 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 12:54:29,782 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 12:54:32,846 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 12:54:32,878 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 12:54:32,878 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 12:54:32,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:54:32 BoogieIcfgContainer [2023-12-02 12:54:32,879 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 12:54:32,882 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 12:54:32,882 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 12:54:32,885 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 12:54:32,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:54:29" (1/3) ... [2023-12-02 12:54:32,886 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cf96883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:54:32, skipping insertion in model container [2023-12-02 12:54:32,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:54:29" (2/3) ... [2023-12-02 12:54:32,886 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cf96883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:54:32, skipping insertion in model container [2023-12-02 12:54:32,887 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:54:32" (3/3) ... [2023-12-02 12:54:32,888 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_knuth.i [2023-12-02 12:54:32,907 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 12:54:32,907 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-12-02 12:54:32,908 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cf96883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:54:32, skipping insertion in model container [2023-12-02 12:54:32,908 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 12:54:32,909 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 12:54:32,909 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 12:54:32,910 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 12:54:32,910 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:54:32" (3/3) ... [2023-12-02 12:54:32,912 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 12:54:32,915 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure func_to_recursive_line_39_to_67_0 [2023-12-02 12:54:32,915 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-12-02 12:54:32,915 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-12-02 12:54:32,923 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2023-12-02 12:54:32,924 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-12-02 12:54:32,924 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-12-02 12:54:32,925 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-12-02 12:54:32,925 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 12:54:33,054 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 12:54:33,055 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 12:54:33,055 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 12:54:33,057 INFO L158 Benchmark]: Toolchain (without parser) took 3870.72ms. Allocated memory is still 94.4MB. Free memory was 71.0MB in the beginning and 70.3MB in the end (delta: 723.1kB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-12-02 12:54:33,057 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 69.2MB. Free memory is still 45.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 12:54:33,058 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.11ms. Allocated memory is still 94.4MB. Free memory was 70.8MB in the beginning and 56.6MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 12:54:33,058 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.30ms. Allocated memory is still 94.4MB. Free memory was 56.6MB in the beginning and 54.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 12:54:33,058 INFO L158 Benchmark]: Boogie Preprocessor took 46.61ms. Allocated memory is still 94.4MB. Free memory was 54.8MB in the beginning and 52.4MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 12:54:33,059 INFO L158 Benchmark]: RCFGBuilder took 3317.09ms. Allocated memory is still 94.4MB. Free memory was 52.2MB in the beginning and 43.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2023-12-02 12:54:33,059 INFO L158 Benchmark]: TraceAbstraction took 26.93ms. Allocated memory is still 94.4MB. Free memory was 42.7MB in the beginning and 40.5MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 12:54:33,060 INFO L158 Benchmark]: Witness Printer took 145.81ms. Allocated memory is still 94.4MB. Free memory was 40.5MB in the beginning and 70.3MB in the end (delta: -29.8MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2023-12-02 12:54:33,062 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 69.2MB. Free memory is still 45.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.11ms. Allocated memory is still 94.4MB. Free memory was 70.8MB in the beginning and 56.6MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.30ms. Allocated memory is still 94.4MB. Free memory was 56.6MB in the beginning and 54.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 46.61ms. Allocated memory is still 94.4MB. Free memory was 54.8MB in the beginning and 52.4MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 3317.09ms. Allocated memory is still 94.4MB. Free memory was 52.2MB in the beginning and 43.3MB in the end (delta: 8.9MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * TraceAbstraction took 26.93ms. Allocated memory is still 94.4MB. Free memory was 42.7MB in the beginning and 40.5MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 145.81ms. Allocated memory is still 94.4MB. Free memory was 40.5MB in the beginning and 70.3MB in the end (delta: -29.8MB). Peak memory consumption was 14.1MB. 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! [2023-12-02 12:54:33,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d7756b9-68e8-4e02-abca-e5a7f8df971f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE