./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound2.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_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 24dd9e35f595841fde27d918f97d639ac1034ccbe1a53bd61bcaaba27340f520 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 01:51:19,418 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 01:51:19,473 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-12-06 01:51:19,477 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 01:51:19,478 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 01:51:19,496 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 01:51:19,497 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 01:51:19,497 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 01:51:19,497 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 01:51:19,498 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 01:51:19,498 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 01:51:19,498 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 01:51:19,498 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 01:51:19,498 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 01:51:19,498 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 01:51:19,498 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 01:51:19,498 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 01:51:19,498 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 01:51:19,498 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 01:51:19,499 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 01:51:19,499 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 01:51:19,499 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 01:51:19,499 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 01:51:19,499 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 01:51:19,499 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 01:51:19,499 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 01:51:19,499 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 01:51:19,499 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 01:51:19,499 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 01:51:19,500 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:51:19,500 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 01:51:19,500 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 01:51:19,500 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 01:51:19,500 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 01:51:19,500 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 01:51:19,500 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_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b 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 -> 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 -> 24dd9e35f595841fde27d918f97d639ac1034ccbe1a53bd61bcaaba27340f520 [2024-12-06 01:51:19,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 01:51:19,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 01:51:19,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 01:51:19,726 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 01:51:19,726 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 01:51:19,727 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound2.i [2024-12-06 01:51:22,404 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/data/9b85d393a/1e47c637ac0943778765bfadb83d0cbe/FLAG2f51332bf [2024-12-06 01:51:22,616 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 01:51:22,616 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound2.i [2024-12-06 01:51:22,623 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/data/9b85d393a/1e47c637ac0943778765bfadb83d0cbe/FLAG2f51332bf [2024-12-06 01:51:22,995 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/data/9b85d393a/1e47c637ac0943778765bfadb83d0cbe [2024-12-06 01:51:22,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 01:51:22,997 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 01:51:22,998 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 01:51:22,998 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 01:51:23,001 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 01:51:23,002 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:51:22" (1/1) ... [2024-12-06 01:51:23,003 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a7e7fe6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:23, skipping insertion in model container [2024-12-06 01:51:23,003 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:51:22" (1/1) ... [2024-12-06 01:51:23,014 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 01:51:23,130 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-12-06 01:51:23,135 INFO L158 Benchmark]: Toolchain (without parser) took 136.57ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 107.5MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 01:51:23,135 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 82.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:51:23,136 INFO L158 Benchmark]: CACSL2BoogieTranslator took 134.84ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 107.5MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 01:51:23,137 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 82.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 134.84ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 107.5MB in the end (delta: 9.3MB). 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_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 24dd9e35f595841fde27d918f97d639ac1034ccbe1a53bd61bcaaba27340f520 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 01:51:24,874 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 01:51:24,950 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf [2024-12-06 01:51:24,976 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 01:51:24,976 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 01:51:24,977 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 01:51:24,977 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 01:51:24,977 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 01:51:24,977 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 01:51:24,977 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 01:51:24,977 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 01:51:24,977 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 01:51:24,977 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 01:51:24,978 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 01:51:24,978 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 01:51:24,978 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 01:51:24,978 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 01:51:24,978 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 01:51:24,978 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 01:51:24,978 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 01:51:24,978 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 01:51:24,978 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 01:51:24,978 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 01:51:24,978 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 01:51:24,978 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 01:51:24,979 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 01:51:24,979 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 01:51:24,979 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 01:51:24,979 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 01:51:24,979 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 01:51:24,979 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 01:51:24,979 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:51:24,979 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 01:51:24,979 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 01:51:24,979 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 01:51:24,979 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 01:51:24,980 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 01:51:24,980 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 01:51:24,980 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_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b 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 -> 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 -> 24dd9e35f595841fde27d918f97d639ac1034ccbe1a53bd61bcaaba27340f520 [2024-12-06 01:51:25,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 01:51:25,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 01:51:25,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 01:51:25,226 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 01:51:25,226 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 01:51:25,227 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound2.i [2024-12-06 01:51:27,851 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/data/599909d15/b3a3a5bcf1ca467e907d79c28b7ddab8/FLAGe6daf7892 [2024-12-06 01:51:28,036 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 01:51:28,037 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound2.i [2024-12-06 01:51:28,044 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/data/599909d15/b3a3a5bcf1ca467e907d79c28b7ddab8/FLAGe6daf7892 [2024-12-06 01:51:28,421 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/data/599909d15/b3a3a5bcf1ca467e907d79c28b7ddab8 [2024-12-06 01:51:28,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 01:51:28,424 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 01:51:28,425 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 01:51:28,425 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 01:51:28,429 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 01:51:28,429 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:51:28" (1/1) ... [2024-12-06 01:51:28,430 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e7cd2cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:28, skipping insertion in model container [2024-12-06 01:51:28,430 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:51:28" (1/1) ... [2024-12-06 01:51:28,441 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 01:51:28,578 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:51:28,589 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 01:51:28,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:51:28,627 INFO L204 MainTranslator]: Completed translation [2024-12-06 01:51:28,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:28 WrapperNode [2024-12-06 01:51:28,627 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 01:51:28,628 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 01:51:28,628 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 01:51:28,628 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 01:51:28,633 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:28" (1/1) ... [2024-12-06 01:51:28,640 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:28" (1/1) ... [2024-12-06 01:51:28,657 INFO L138 Inliner]: procedures = 18, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 86 [2024-12-06 01:51:28,657 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 01:51:28,658 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 01:51:28,658 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 01:51:28,658 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 01:51:28,664 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:28" (1/1) ... [2024-12-06 01:51:28,664 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:28" (1/1) ... [2024-12-06 01:51:28,667 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:28" (1/1) ... [2024-12-06 01:51:28,667 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:28" (1/1) ... [2024-12-06 01:51:28,674 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:28" (1/1) ... [2024-12-06 01:51:28,674 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:28" (1/1) ... [2024-12-06 01:51:28,678 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:28" (1/1) ... [2024-12-06 01:51:28,679 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:28" (1/1) ... [2024-12-06 01:51:28,681 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:28" (1/1) ... [2024-12-06 01:51:28,683 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 01:51:28,684 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 01:51:28,684 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 01:51:28,684 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 01:51:28,685 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:51:28" (1/1) ... [2024-12-06 01:51:28,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:51:28,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 01:51:28,710 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 01:51:28,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 01:51:28,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 01:51:28,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 01:51:28,735 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-06 01:51:28,735 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-06 01:51:28,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 01:51:28,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 01:51:28,735 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-06 01:51:28,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-06 01:51:28,786 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 01:51:28,788 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 01:51:39,705 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-12-06 01:51:39,705 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 01:51:39,787 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 01:51:39,787 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 01:51:39,787 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:51:39 BoogieIcfgContainer [2024-12-06 01:51:39,787 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 01:51:39,788 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 01:51:39,788 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 01:51:39,797 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 01:51:39,798 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:51:39" (1/1) ... [2024-12-06 01:51:39,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 01:51:39,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:51:39,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2024-12-06 01:51:39,843 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2024-12-06 01:51:39,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 01:51:39,846 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:51:39,847 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 01:51:39,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 01:51:39,849 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 01:51:39,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 01:51:39,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:51:39,932 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 01:51:40,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:51:40,823 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-06 01:51:40,826 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 01:51:40,843 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 01:51:40,846 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-12-06 01:51:40,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:51:40,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2024-12-06 01:51:40,958 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2024-12-06 01:51:40,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 01:51:40,958 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:51:40,959 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 01:51:40,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 01:51:40,960 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 01:51:40,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-12-06 01:51:44,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:51:44,896 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 01:51:45,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:51:45,657 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-06 01:51:45,659 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 01:51:46,241 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 01:51:46,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-12-06 01:51:47,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:51:47,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 23 states and 29 transitions. [2024-12-06 01:51:47,275 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2024-12-06 01:51:47,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-12-06 01:51:47,275 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:51:47,275 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 01:51:47,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 01:51:47,277 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 01:51:47,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-12-06 01:51:51,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:51:51,614 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 01:51:52,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:51:52,450 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-06 01:51:52,452 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 01:51:53,988 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-12-06 01:51:54,026 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-12-06 01:51:57,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:51:57,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 34 states and 45 transitions. [2024-12-06 01:51:57,694 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2024-12-06 01:51:57,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-12-06 01:51:57,695 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:51:57,695 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 01:51:57,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 01:51:57,697 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 01:51:57,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-12-06 01:52:02,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:52:02,237 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 01:52:02,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:52:03,181 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-06 01:52:03,183 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 01:52:05,966 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-12-06 01:52:06,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-12-06 01:52:13,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:52:13,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 45 states and 61 transitions. [2024-12-06 01:52:13,311 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 61 transitions. [2024-12-06 01:52:13,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-12-06 01:52:13,312 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:52:13,312 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 01:52:13,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 01:52:13,314 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 01:52:13,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-12-06 01:52:18,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:52:18,007 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 01:52:18,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:52:19,029 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-06 01:52:19,033 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 01:52:21,142 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 83 proven. 49 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-12-06 01:52:21,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-12-06 01:52:23,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:52:23,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 34 states and 44 transitions. [2024-12-06 01:52:23,603 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2024-12-06 01:52:23,603 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-06 01:52:23,604 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2024-12-06 01:52:23,609 INFO L726 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2024-12-06 01:52:31,223 INFO L77 FloydHoareUtils]: At program point L33(line 33) the Hoare annotation is: (= (_ bv0 32) ~counter~0) [2024-12-06 01:52:31,223 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2024-12-06 01:52:31,224 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-12-06 01:52:31,224 INFO L77 FloydHoareUtils]: At program point L44(lines 40 70) the Hoare annotation is: (not (and (not (= (_ bv2 32) ~counter~0)) (not (= (_ bv1 32) ~counter~0)))) [2024-12-06 01:52:31,224 INFO L77 FloydHoareUtils]: At program point L42(line 42) the Hoare annotation is: (not (and (not (= (_ bv2 32) ~counter~0)) (not (= (_ bv1 32) ~counter~0)))) [2024-12-06 01:52:31,224 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-12-06 01:52:31,224 INFO L77 FloydHoareUtils]: At program point L40-1(line 40) the Hoare annotation is: (not (and (not (= |ULTIMATE.start_main_#t~post4#1| (_ bv1 32))) (not (= |ULTIMATE.start_main_#t~post4#1| (_ bv0 32))) (not (= |ULTIMATE.start_main_#t~post4#1| (_ bv2 32))))) [2024-12-06 01:52:31,225 INFO L77 FloydHoareUtils]: At program point L40-2(line 40) the Hoare annotation is: (not (and (not (= |ULTIMATE.start_main_#t~post4#1| (_ bv1 32))) (not (= |ULTIMATE.start_main_#t~post4#1| (_ bv0 32))) (not (= |ULTIMATE.start_main_#t~post4#1| (_ bv2 32))))) [2024-12-06 01:52:31,225 INFO L77 FloydHoareUtils]: At program point L40-3(lines 40 70) the Hoare annotation is: (not (and (not (= (_ bv2 32) ~counter~0)) (not (= (_ bv1 32) ~counter~0)) (not (= |ULTIMATE.start_main_#t~post4#1| (_ bv2 32))))) [2024-12-06 01:52:31,225 INFO L77 FloydHoareUtils]: At program point L40-4(lines 40 70) the Hoare annotation is: (not (and (not (= (_ bv2 32) ~counter~0)) (not (= (_ bv1 32) ~counter~0)))) [2024-12-06 01:52:31,225 INFO L77 FloydHoareUtils]: At program point L40-6(lines 40 70) the Hoare annotation is: true [2024-12-06 01:52:31,225 INFO L77 FloydHoareUtils]: At program point L32(line 32) the Hoare annotation is: (= (_ bv0 32) ~counter~0) [2024-12-06 01:52:31,225 INFO L77 FloydHoareUtils]: At program point L32-1(line 32) the Hoare annotation is: (= (_ bv0 32) ~counter~0) [2024-12-06 01:52:31,225 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2024-12-06 01:52:31,225 INFO L77 FloydHoareUtils]: At program point L57-2(lines 40 70) the Hoare annotation is: (not (and (not (= (_ bv2 32) ~counter~0)) (not (= (_ bv0 32) ~counter~0)) (not (= (_ bv1 32) ~counter~0)))) [2024-12-06 01:52:31,225 INFO L77 FloydHoareUtils]: At program point L43(line 43) the Hoare annotation is: (not (and (not (= (_ bv2 32) ~counter~0)) (not (= (_ bv1 32) ~counter~0)))) [2024-12-06 01:52:31,226 INFO L77 FloydHoareUtils]: At program point L41(line 41) the Hoare annotation is: (not (and (not (= (_ bv2 32) ~counter~0)) (not (= (_ bv1 32) ~counter~0)))) [2024-12-06 01:52:31,226 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 15 17) the Hoare annotation is: (= (_ bv0 32) ~counter~0) [2024-12-06 01:52:31,226 INFO L77 FloydHoareUtils]: At program point assume_abort_if_notEXIT(lines 15 17) the Hoare annotation is: (= (_ bv0 32) ~counter~0) [2024-12-06 01:52:31,226 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertEXIT(lines 18 24) the Hoare annotation is: (not (and (not (= (_ bv2 32) ~counter~0)) (not (= (_ bv1 32) ~counter~0)))) [2024-12-06 01:52:31,226 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 18 24) the Hoare annotation is: (not (and (not (= (_ bv2 32) ~counter~0)) (not (= (_ bv1 32) ~counter~0)))) [2024-12-06 01:52:31,242 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 01:52:31 ImpRootNode [2024-12-06 01:52:31,242 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 01:52:31,243 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 01:52:31,243 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 01:52:31,243 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 01:52:31,244 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:51:39" (3/4) ... [2024-12-06 01:52:31,246 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-06 01:52:31,249 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-06 01:52:31,249 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-12-06 01:52:31,252 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2024-12-06 01:52:31,253 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-12-06 01:52:31,253 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-06 01:52:31,253 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-06 01:52:31,253 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-06 01:52:31,327 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 01:52:31,328 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 01:52:31,328 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 01:52:31,329 INFO L158 Benchmark]: Toolchain (without parser) took 62904.15ms. Allocated memory is still 92.3MB. Free memory was 69.3MB in the beginning and 31.0MB in the end (delta: 38.3MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. [2024-12-06 01:52:31,329 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:52:31,329 INFO L158 Benchmark]: CACSL2BoogieTranslator took 202.37ms. Allocated memory is still 92.3MB. Free memory was 69.1MB in the beginning and 56.2MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 01:52:31,329 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.49ms. Allocated memory is still 92.3MB. Free memory was 56.2MB in the beginning and 54.8MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 01:52:31,330 INFO L158 Benchmark]: Boogie Preprocessor took 25.45ms. Allocated memory is still 92.3MB. Free memory was 54.8MB in the beginning and 53.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:52:31,330 INFO L158 Benchmark]: RCFGBuilder took 11103.20ms. Allocated memory is still 92.3MB. Free memory was 53.5MB in the beginning and 56.9MB in the end (delta: -3.4MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2024-12-06 01:52:31,330 INFO L158 Benchmark]: CodeCheck took 51454.51ms. Allocated memory is still 92.3MB. Free memory was 56.9MB in the beginning and 36.3MB in the end (delta: 20.5MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2024-12-06 01:52:31,331 INFO L158 Benchmark]: Witness Printer took 84.76ms. Allocated memory is still 92.3MB. Free memory was 36.3MB in the beginning and 31.0MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 01:52:31,332 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 43.8s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 263 SdHoareTripleChecker+Valid, 15.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 151 mSDsluCounter, 221 SdHoareTripleChecker+Invalid, 14.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 58 mSDsCounter, 130 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 362 IncrementalHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 130 mSolverCounterUnsat, 163 mSDtfsCounter, 362 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1143 GetRequests, 1117 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 9.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 8.2s InterpolantComputationTime, 156 NumberOfCodeBlocks, 156 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 151 ConstructedInterpolants, 0 QuantifiedInterpolants, 403 SizeOfPredicates, 14 NumberOfNonLiveVariables, 410 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 165/264 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: !(((2 != counter) && (0 != counter)) && (1 != counter)) - ProcedureContractResult [Line: 15]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Requires: (0 == counter) Ensures: ((0 == counter) && (counter == \old(counter))) - ProcedureContractResult [Line: 18]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: ((1 == counter) || (2 == counter)) Ensures: (((1 == counter) || (2 == counter)) && (counter == \old(counter))) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory is still 48.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 202.37ms. Allocated memory is still 92.3MB. Free memory was 69.1MB in the beginning and 56.2MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.49ms. Allocated memory is still 92.3MB. Free memory was 56.2MB in the beginning and 54.8MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.45ms. Allocated memory is still 92.3MB. Free memory was 54.8MB in the beginning and 53.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 11103.20ms. Allocated memory is still 92.3MB. Free memory was 53.5MB in the beginning and 56.9MB in the end (delta: -3.4MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. * CodeCheck took 51454.51ms. Allocated memory is still 92.3MB. Free memory was 56.9MB in the beginning and 36.3MB in the end (delta: 20.5MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. * Witness Printer took 84.76ms. Allocated memory is still 92.3MB. Free memory was 36.3MB in the beginning and 31.0MB in the end (delta: 5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-12-06 01:52:31,541 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process [2024-12-06 01:52:31,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_156f646c-cdbb-4ad7-b24f-2d13d9403002/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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