./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_knuth.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_knuth.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/bin/ukojak-verify-ENZ3QT5qd3 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f966bbb701fa0020ebf49f98d5faa7f02bbc3a28868891c6c7ff0a45fb5b1ff --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-24 18:21:49,815 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 18:21:49,884 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-24 18:21:49,889 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 18:21:49,889 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-24 18:21:49,929 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 18:21:49,931 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 18:21:49,931 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-24 18:21:49,931 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 18:21:49,932 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 18:21:49,933 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 18:21:49,933 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 18:21:49,933 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 18:21:49,933 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 18:21:49,934 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 18:21:49,934 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 18:21:49,934 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 18:21:49,934 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 18:21:49,934 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 18:21:49,935 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 18:21:49,935 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 18:21:49,935 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 18:21:49,935 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 18:21:49,935 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-24 18:21:49,935 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-24 18:21:49,935 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-24 18:21:49,936 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 18:21:49,936 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:21:49,936 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 18:21:49,936 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 18:21:49,936 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 18:21:49,936 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-24 18:21:49,936 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 18:21:49,936 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/bin/ukojak-verify-ENZ3QT5qd3 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 ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak 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 [2024-11-24 18:21:50,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 18:21:50,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 18:21:50,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 18:21:50,265 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 18:21:50,265 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 18:21:50,266 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/recursified_nla-digbench/recursified_knuth.i [2024-11-24 18:21:53,245 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/bin/ukojak-verify-ENZ3QT5qd3/data/50b8abdce/f0e74a54597f4ce2b83dd262e0a8d272/FLAG6b3d0f33f [2024-11-24 18:21:53,584 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 18:21:53,585 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/sv-benchmarks/c/recursified_nla-digbench/recursified_knuth.i [2024-11-24 18:21:53,598 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/bin/ukojak-verify-ENZ3QT5qd3/data/50b8abdce/f0e74a54597f4ce2b83dd262e0a8d272/FLAG6b3d0f33f [2024-11-24 18:21:53,624 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/bin/ukojak-verify-ENZ3QT5qd3/data/50b8abdce/f0e74a54597f4ce2b83dd262e0a8d272 [2024-11-24 18:21:53,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 18:21:53,630 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 18:21:53,634 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 18:21:53,634 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 18:21:53,642 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 18:21:53,643 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:21:53" (1/1) ... [2024-11-24 18:21:53,643 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22e06859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:21:53, skipping insertion in model container [2024-11-24 18:21:53,644 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:21:53" (1/1) ... [2024-11-24 18:21:53,667 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 18:21:53,850 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/sv-benchmarks/c/recursified_nla-digbench/recursified_knuth.i[1555,1568] [2024-11-24 18:21:53,914 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-24 18:21:53,922 INFO L158 Benchmark]: Toolchain (without parser) took 292.19ms. Allocated memory is still 142.6MB. Free memory was 119.0MB in the beginning and 108.2MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 18:21:53,926 INFO L158 Benchmark]: CDTParser took 1.50ms. Allocated memory is still 142.6MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:21:53,926 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.22ms. Allocated memory is still 142.6MB. Free memory was 118.7MB in the beginning and 108.2MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 18:21:53,927 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.50ms. Allocated memory is still 142.6MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 287.22ms. Allocated memory is still 142.6MB. Free memory was 118.7MB in the beginning and 108.2MB in the end (delta: 10.6MB). 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_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_knuth.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/bin/ukojak-verify-ENZ3QT5qd3 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f966bbb701fa0020ebf49f98d5faa7f02bbc3a28868891c6c7ff0a45fb5b1ff --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-24 18:21:56,588 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 18:21:56,726 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2024-11-24 18:21:56,793 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 18:21:56,794 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 18:21:56,794 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-24 18:21:56,795 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 18:21:56,795 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 18:21:56,795 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 18:21:56,796 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 18:21:56,796 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 18:21:56,797 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 18:21:56,797 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 18:21:56,797 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 18:21:56,797 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 18:21:56,797 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 18:21:56,798 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 18:21:56,798 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 18:21:56,798 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 18:21:56,798 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 18:21:56,798 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 18:21:56,798 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 18:21:56,798 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 18:21:56,798 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-24 18:21:56,798 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-24 18:21:56,798 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-24 18:21:56,798 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 18:21:56,798 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-24 18:21:56,799 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 18:21:56,799 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:21:56,799 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 18:21:56,799 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 18:21:56,799 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 18:21:56,799 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-24 18:21:56,799 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 18:21:56,799 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-24 18:21:56,799 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/bin/ukojak-verify-ENZ3QT5qd3 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 ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak 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 [2024-11-24 18:21:57,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 18:21:57,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 18:21:57,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 18:21:57,153 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 18:21:57,153 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 18:21:57,154 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/recursified_nla-digbench/recursified_knuth.i [2024-11-24 18:22:00,075 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/bin/ukojak-verify-ENZ3QT5qd3/data/10c5bab6d/36416d6b216f45fb9f355ebc0c341e74/FLAGbaa666780 [2024-11-24 18:22:00,384 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 18:22:00,389 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/sv-benchmarks/c/recursified_nla-digbench/recursified_knuth.i [2024-11-24 18:22:00,406 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/bin/ukojak-verify-ENZ3QT5qd3/data/10c5bab6d/36416d6b216f45fb9f355ebc0c341e74/FLAGbaa666780 [2024-11-24 18:22:00,428 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/bin/ukojak-verify-ENZ3QT5qd3/data/10c5bab6d/36416d6b216f45fb9f355ebc0c341e74 [2024-11-24 18:22:00,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 18:22:00,434 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 18:22:00,435 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 18:22:00,437 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 18:22:00,441 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 18:22:00,442 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:22:00" (1/1) ... [2024-11-24 18:22:00,445 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52113182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:00, skipping insertion in model container [2024-11-24 18:22:00,445 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:22:00" (1/1) ... [2024-11-24 18:22:00,466 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 18:22:00,645 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/sv-benchmarks/c/recursified_nla-digbench/recursified_knuth.i[1555,1568] [2024-11-24 18:22:00,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:22:00,732 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 18:22:00,745 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/sv-benchmarks/c/recursified_nla-digbench/recursified_knuth.i[1555,1568] [2024-11-24 18:22:00,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:22:00,802 INFO L204 MainTranslator]: Completed translation [2024-11-24 18:22:00,802 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:00 WrapperNode [2024-11-24 18:22:00,802 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 18:22:00,803 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 18:22:00,803 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 18:22:00,804 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 18:22:00,810 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:00" (1/1) ... [2024-11-24 18:22:00,821 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:00" (1/1) ... [2024-11-24 18:22:00,852 INFO L138 Inliner]: procedures = 22, calls = 177, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 98 [2024-11-24 18:22:00,853 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 18:22:00,853 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 18:22:00,853 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 18:22:00,854 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 18:22:00,862 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:00" (1/1) ... [2024-11-24 18:22:00,863 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:00" (1/1) ... [2024-11-24 18:22:00,877 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:00" (1/1) ... [2024-11-24 18:22:00,877 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:00" (1/1) ... [2024-11-24 18:22:00,905 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:00" (1/1) ... [2024-11-24 18:22:00,906 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:00" (1/1) ... [2024-11-24 18:22:00,913 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:00" (1/1) ... [2024-11-24 18:22:00,915 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:00" (1/1) ... [2024-11-24 18:22:00,920 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:00" (1/1) ... [2024-11-24 18:22:00,926 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 18:22:00,927 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 18:22:00,927 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 18:22:00,928 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 18:22:00,931 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:22:00" (1/1) ... [2024-11-24 18:22:00,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:22:00,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-24 18:22:00,968 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-24 18:22:00,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-24 18:22:00,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 18:22:00,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-24 18:22:00,996 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 18:22:00,996 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 18:22:00,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 18:22:00,996 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_39_to_67_0 [2024-11-24 18:22:00,996 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_39_to_67_0 [2024-11-24 18:22:00,996 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-24 18:22:00,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 18:22:00,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 18:22:00,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-24 18:22:00,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-24 18:22:00,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 18:22:00,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-24 18:22:01,131 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 18:22:01,133 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 18:22:12,312 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-24 18:22:12,312 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 18:22:12,532 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 18:22:12,533 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 18:22:12,533 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:22:12 BoogieIcfgContainer [2024-11-24 18:22:12,533 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 18:22:12,534 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-24 18:22:12,534 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-24 18:22:12,543 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-24 18:22:12,543 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:22:12" (1/1) ... [2024-11-24 18:22:12,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 18:22:12,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:22:12,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 30 states and 37 transitions. [2024-11-24 18:22:12,602 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2024-11-24 18:22:12,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-24 18:22:12,606 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:22:12,607 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 18:22:12,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-24 18:22:12,610 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 18:22:12,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e00fcd9-e7d0-4c10-ae0a-b20f69004491/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process