./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.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_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/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_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/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_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/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 953dc8095830260ae835d79f90b96c794426fcd9911aa994e4cb8f2d3bfb6995 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 00:25:38,033 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 00:25:38,084 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-12-06 00:25:38,087 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 00:25:38,087 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 00:25:38,105 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 00:25:38,106 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 00:25:38,106 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 00:25:38,106 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 00:25:38,106 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 00:25:38,106 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 00:25:38,107 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 00:25:38,107 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 00:25:38,107 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 00:25:38,107 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 00:25:38,107 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 00:25:38,107 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 00:25:38,107 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 00:25:38,107 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 00:25:38,107 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 00:25:38,107 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 00:25:38,107 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 00:25:38,108 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 00:25:38,108 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 00:25:38,108 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 00:25:38,108 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 00:25:38,108 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 00:25:38,108 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 00:25:38,108 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 00:25:38,108 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:25:38,108 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 00:25:38,108 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 00:25:38,109 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 00:25:38,109 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 00:25:38,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 00:25:38,109 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_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/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 -> 953dc8095830260ae835d79f90b96c794426fcd9911aa994e4cb8f2d3bfb6995 [2024-12-06 00:25:38,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 00:25:38,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 00:25:38,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 00:25:38,314 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 00:25:38,315 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 00:25:38,316 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i [2024-12-06 00:25:40,936 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/data/02b037ed7/cf58ed84e6a44e479c41da711b921aa4/FLAG6573c04c9 [2024-12-06 00:25:41,122 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 00:25:41,123 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i [2024-12-06 00:25:41,128 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/data/02b037ed7/cf58ed84e6a44e479c41da711b921aa4/FLAG6573c04c9 [2024-12-06 00:25:41,497 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/data/02b037ed7/cf58ed84e6a44e479c41da711b921aa4 [2024-12-06 00:25:41,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 00:25:41,500 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 00:25:41,502 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 00:25:41,502 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 00:25:41,506 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 00:25:41,506 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:25:41" (1/1) ... [2024-12-06 00:25:41,507 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b063862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:25:41, skipping insertion in model container [2024-12-06 00:25:41,507 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:25:41" (1/1) ... [2024-12-06 00:25:41,522 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 00:25:41,645 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-12-06 00:25:41,651 INFO L158 Benchmark]: Toolchain (without parser) took 149.85ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 83.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 00:25:41,651 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:25:41,652 INFO L158 Benchmark]: CACSL2BoogieTranslator took 147.78ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 83.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 00:25:41,653 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 147.78ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 83.2MB in the end (delta: 9.4MB). 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_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/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_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/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_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/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 953dc8095830260ae835d79f90b96c794426fcd9911aa994e4cb8f2d3bfb6995 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 00:25:43,412 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 00:25:43,495 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf [2024-12-06 00:25:43,519 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 00:25:43,519 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 00:25:43,519 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 00:25:43,520 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 00:25:43,520 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 00:25:43,520 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 00:25:43,520 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 00:25:43,520 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 00:25:43,520 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 00:25:43,520 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 00:25:43,520 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 00:25:43,521 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 00:25:43,521 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 00:25:43,521 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-06 00:25:43,521 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-06 00:25:43,521 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 00:25:43,521 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-06 00:25:43,521 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 00:25:43,521 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 00:25:43,521 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 00:25:43,522 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 00:25:43,522 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 00:25:43,522 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 00:25:43,522 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 00:25:43,522 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 00:25:43,522 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 00:25:43,522 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-06 00:25:43,522 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 00:25:43,522 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:25:43,523 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 00:25:43,523 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 00:25:43,523 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 00:25:43,523 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-06 00:25:43,523 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-06 00:25:43,523 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-06 00:25:43,523 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_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/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 -> 953dc8095830260ae835d79f90b96c794426fcd9911aa994e4cb8f2d3bfb6995 [2024-12-06 00:25:43,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 00:25:43,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 00:25:43,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 00:25:43,757 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 00:25:43,757 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 00:25:43,758 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i [2024-12-06 00:25:46,407 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/data/1bfd2f701/2b81279f77a840d79db6f375133b548e/FLAG766e79e74 [2024-12-06 00:25:46,614 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 00:25:46,615 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i [2024-12-06 00:25:46,622 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/data/1bfd2f701/2b81279f77a840d79db6f375133b548e/FLAG766e79e74 [2024-12-06 00:25:46,984 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/data/1bfd2f701/2b81279f77a840d79db6f375133b548e [2024-12-06 00:25:46,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 00:25:46,986 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 00:25:46,987 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 00:25:46,987 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 00:25:46,990 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 00:25:46,991 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:25:46" (1/1) ... [2024-12-06 00:25:46,991 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ce660e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:25:46, skipping insertion in model container [2024-12-06 00:25:46,991 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:25:46" (1/1) ... [2024-12-06 00:25:47,003 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 00:25:47,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:25:47,163 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 00:25:47,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:25:47,197 INFO L204 MainTranslator]: Completed translation [2024-12-06 00:25:47,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:25:47 WrapperNode [2024-12-06 00:25:47,198 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 00:25:47,198 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 00:25:47,198 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 00:25:47,198 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 00:25:47,203 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:25:47" (1/1) ... [2024-12-06 00:25:47,209 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:25:47" (1/1) ... [2024-12-06 00:25:47,226 INFO L138 Inliner]: procedures = 18, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 86 [2024-12-06 00:25:47,226 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 00:25:47,227 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 00:25:47,227 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 00:25:47,227 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 00:25:47,234 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:25:47" (1/1) ... [2024-12-06 00:25:47,234 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:25:47" (1/1) ... [2024-12-06 00:25:47,237 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:25:47" (1/1) ... [2024-12-06 00:25:47,237 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:25:47" (1/1) ... [2024-12-06 00:25:47,243 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:25:47" (1/1) ... [2024-12-06 00:25:47,244 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:25:47" (1/1) ... [2024-12-06 00:25:47,246 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:25:47" (1/1) ... [2024-12-06 00:25:47,247 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:25:47" (1/1) ... [2024-12-06 00:25:47,248 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:25:47" (1/1) ... [2024-12-06 00:25:47,250 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 00:25:47,250 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 00:25:47,250 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 00:25:47,250 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 00:25:47,251 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:25:47" (1/1) ... [2024-12-06 00:25:47,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:25:47,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 00:25:47,279 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 00:25:47,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 00:25:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 00:25:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-06 00:25:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-06 00:25:47,299 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-06 00:25:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 00:25:47,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 00:25:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-06 00:25:47,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-06 00:25:47,352 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 00:25:47,353 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 00:25:58,262 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-12-06 00:25:58,262 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 00:25:58,349 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 00:25:58,350 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 00:25:58,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:25:58 BoogieIcfgContainer [2024-12-06 00:25:58,350 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 00:25:58,351 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 00:25:58,351 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 00:25:58,357 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 00:25:58,358 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:25:58" (1/1) ... [2024-12-06 00:25:58,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 00:25:58,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:25:58,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2024-12-06 00:25:58,402 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2024-12-06 00:25:58,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 00:25:58,405 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:25:58,405 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:25:58,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:25:58,407 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:25:58,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-06 00:25:58,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:25:58,506 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 00:25:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:25:59,410 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-06 00:25:59,412 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:25:59,428 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 00:25:59,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-06 00:25:59,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:25:59,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2024-12-06 00:25:59,557 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2024-12-06 00:25:59,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 00:25:59,558 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:25:59,558 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:25:59,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:25:59,560 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:25:59,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-12-06 00:26:03,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:26:03,439 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 00:26:03,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:26:04,197 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-06 00:26:04,199 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:26:04,798 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 00:26:04,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-12-06 00:26:05,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:26:05,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 23 states and 29 transitions. [2024-12-06 00:26:05,821 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2024-12-06 00:26:05,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-12-06 00:26:05,822 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:26:05,822 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:26:05,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:26:05,824 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:26:05,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-12-06 00:26:10,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:26:10,189 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 00:26:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:26:11,057 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-06 00:26:11,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:26:12,618 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 00:26:12,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-12-06 00:26:16,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:26:16,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 34 states and 45 transitions. [2024-12-06 00:26:16,190 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2024-12-06 00:26:16,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-12-06 00:26:16,191 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:26:16,191 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:26:16,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:26:16,192 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:26:16,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-12-06 00:26:20,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:26:20,665 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 00:26:21,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:26:21,613 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-06 00:26:21,615 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:26:24,390 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 00:26:24,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-12-06 00:26:31,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:26:31,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 45 states and 61 transitions. [2024-12-06 00:26:31,932 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 61 transitions. [2024-12-06 00:26:31,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-12-06 00:26:31,933 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:26:31,933 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:26:31,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:26:31,935 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:26:31,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-12-06 00:26:36,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:26:36,658 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 00:26:37,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:26:37,671 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-06 00:26:37,674 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:26:41,929 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-12-06 00:26:41,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-12-06 00:26:51,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:26:51,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 56 states and 77 transitions. [2024-12-06 00:26:51,173 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2024-12-06 00:26:51,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-06 00:26:51,174 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:26:51,175 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:26:51,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:26:51,176 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:26:51,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-12-06 00:26:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:26:56,010 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 00:26:56,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:26:57,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-06 00:26:57,120 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:27:02,862 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 258 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-12-06 00:27:02,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-12-06 00:27:14,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:27:14,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 67 states and 93 transitions. [2024-12-06 00:27:14,595 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 93 transitions. [2024-12-06 00:27:14,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-06 00:27:14,596 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:27:14,596 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:27:14,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:27:14,598 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:27:14,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-12-06 00:27:19,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:27:19,622 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 00:27:20,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:27:20,785 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-06 00:27:20,793 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:27:28,158 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 0 proven. 425 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-12-06 00:27:28,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-12-06 00:27:41,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:27:41,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 78 states and 109 transitions. [2024-12-06 00:27:41,983 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 109 transitions. [2024-12-06 00:27:41,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-06 00:27:41,985 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:27:41,985 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:27:41,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:27:41,987 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:27:41,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-12-06 00:27:47,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:27:47,226 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 00:27:48,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:27:48,519 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-06 00:27:48,521 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:27:57,693 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 0 proven. 633 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-12-06 00:27:57,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2024-12-06 00:28:14,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:28:14,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 89 states and 125 transitions. [2024-12-06 00:28:14,148 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 125 transitions. [2024-12-06 00:28:14,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-06 00:28:14,151 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:28:14,151 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:28:14,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:28:14,154 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:28:14,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-12-06 00:28:19,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:28:19,941 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 00:28:20,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:28:21,323 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-06 00:28:21,328 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:28:32,479 INFO L134 CoverageAnalysis]: Checked inductivity of 968 backedges. 0 proven. 882 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-12-06 00:28:32,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-12-06 00:28:51,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:28:51,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 100 states and 141 transitions. [2024-12-06 00:28:51,673 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 141 transitions. [2024-12-06 00:28:51,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-06 00:28:51,674 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:28:51,674 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:28:51,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:28:51,676 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:28:51,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-12-06 00:28:57,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:28:57,477 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 00:28:58,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:28:58,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-06 00:28:58,866 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:29:12,183 INFO L134 CoverageAnalysis]: Checked inductivity of 1270 backedges. 0 proven. 1172 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-12-06 00:29:12,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-12-06 00:29:34,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:29:34,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 111 states and 157 transitions. [2024-12-06 00:29:34,514 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 157 transitions. [2024-12-06 00:29:34,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-12-06 00:29:34,517 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:29:34,517 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:29:34,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:29:34,519 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:29:34,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2024-12-06 00:29:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:29:40,542 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 00:29:41,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:29:42,041 INFO L256 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-06 00:29:42,044 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:29:57,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1613 backedges. 0 proven. 1503 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-12-06 00:29:57,704 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2024-12-06 00:30:23,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:30:23,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 122 states and 173 transitions. [2024-12-06 00:30:23,489 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 173 transitions. [2024-12-06 00:30:23,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-12-06 00:30:23,490 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:30:23,490 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:30:23,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:30:23,492 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:30:23,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-12-06 00:30:29,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:30:29,604 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 00:30:30,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:30:31,088 INFO L256 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-06 00:30:31,091 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:30:49,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1997 backedges. 0 proven. 1875 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-12-06 00:30:49,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2024-12-06 00:31:18,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:31:18,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 133 states and 189 transitions. [2024-12-06 00:31:18,365 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 189 transitions. [2024-12-06 00:31:18,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-12-06 00:31:18,366 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:31:18,367 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:31:18,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:31:18,369 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:31:18,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-12-06 00:31:24,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:31:24,609 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 00:31:25,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:31:26,160 INFO L256 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-06 00:31:26,165 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:31:47,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2422 backedges. 0 proven. 2288 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-12-06 00:31:47,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2024-12-06 00:32:19,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:32:19,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 144 states and 205 transitions. [2024-12-06 00:32:19,411 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 205 transitions. [2024-12-06 00:32:19,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-12-06 00:32:19,413 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:32:19,413 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:32:19,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:32:19,415 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:32:19,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2024-12-06 00:32:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:32:25,727 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 00:32:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:32:27,679 INFO L256 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-12-06 00:32:27,682 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:32:51,115 INFO L134 CoverageAnalysis]: Checked inductivity of 2888 backedges. 0 proven. 2742 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-12-06 00:32:51,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2024-12-06 00:33:27,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:33:27,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 155 states and 221 transitions. [2024-12-06 00:33:27,116 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 221 transitions. [2024-12-06 00:33:27,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-12-06 00:33:27,118 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:33:27,118 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:33:27,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:33:27,120 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:33:27,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-12-06 00:33:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:33:33,724 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 00:33:34,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:33:35,455 INFO L256 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-12-06 00:33:35,458 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:34:01,977 INFO L134 CoverageAnalysis]: Checked inductivity of 3395 backedges. 0 proven. 3237 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2024-12-06 00:34:02,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2024-12-06 00:34:42,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:34:42,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 166 states and 237 transitions. [2024-12-06 00:34:42,244 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 237 transitions. [2024-12-06 00:34:42,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-12-06 00:34:42,246 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:34:42,246 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:34:42,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:34:42,248 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:34:42,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-12-06 00:34:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:34:48,965 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 00:34:50,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:34:50,762 INFO L256 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-06 00:34:50,773 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:35:21,737 INFO L134 CoverageAnalysis]: Checked inductivity of 3943 backedges. 0 proven. 3773 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2024-12-06 00:35:21,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2024-12-06 00:36:09,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:36:09,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 177 states and 253 transitions. [2024-12-06 00:36:09,111 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 253 transitions. [2024-12-06 00:36:09,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2024-12-06 00:36:09,114 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:36:09,114 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:36:09,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:36:09,116 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:36:09,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2024-12-06 00:36:16,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:36:16,365 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 00:36:18,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:36:18,607 INFO L256 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-12-06 00:36:18,617 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:36:54,397 INFO L134 CoverageAnalysis]: Checked inductivity of 4532 backedges. 0 proven. 4350 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-12-06 00:36:54,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2024-12-06 00:37:49,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:37:49,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 188 states and 269 transitions. [2024-12-06 00:37:49,796 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 269 transitions. [2024-12-06 00:37:49,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-12-06 00:37:49,797 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:37:49,797 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:37:49,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:37:49,799 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:37:49,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-12-06 00:37:57,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:37:57,110 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 00:37:58,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:37:59,260 INFO L256 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-12-06 00:37:59,264 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:38:41,098 INFO L134 CoverageAnalysis]: Checked inductivity of 5162 backedges. 0 proven. 4968 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-12-06 00:38:41,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2024-12-06 00:39:42,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:39:42,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 199 states and 285 transitions. [2024-12-06 00:39:42,161 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 285 transitions. [2024-12-06 00:39:42,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-12-06 00:39:42,163 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:39:42,163 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-06 00:39:42,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-06 00:39:42,166 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-06 00:39:42,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-12-06 00:39:49,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:39:49,874 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-06 00:39:51,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:39:52,100 INFO L256 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-12-06 00:39:52,104 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 00:40:37,678 INFO L134 CoverageAnalysis]: Checked inductivity of 5833 backedges. 0 proven. 5627 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2024-12-06 00:40:37,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42f3e0d7-d31b-4032-9665-6c1b0a7f9661/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0