./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_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3 --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 [2024-11-25 02:22:46,512 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:22:46,573 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-11-25 02:22:46,578 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 02:22:46,578 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 02:22:46,599 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:22:46,603 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:22:46,604 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:22:46,604 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:22:46,605 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:22:46,605 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:22:46,606 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:22:46,606 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 02:22:46,606 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 02:22:46,606 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 02:22:46,606 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:22:46,607 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:22:46,607 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:22:46,607 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:22:46,607 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 02:22:46,608 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 02:22:46,608 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 02:22:46,608 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:22:46,608 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:22:46,608 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:22:46,608 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:22:46,608 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:22:46,609 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:22:46,609 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:22:46,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:22:46,609 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:22:46,609 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:22:46,609 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:22:46,610 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 02:22:46,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 02:22:46,610 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_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 [2024-11-25 02:22:46,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:22:46,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:22:46,921 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:22:46,922 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:22:46,923 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:22:46,924 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i [2024-11-25 02:22:49,816 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/data/c3886d0ef/fcb2f14b1b954953b70560c6bf64dbaa/FLAG037a25042 [2024-11-25 02:22:50,078 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:22:50,079 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i [2024-11-25 02:22:50,106 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/data/c3886d0ef/fcb2f14b1b954953b70560c6bf64dbaa/FLAG037a25042 [2024-11-25 02:22:50,382 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/data/c3886d0ef/fcb2f14b1b954953b70560c6bf64dbaa [2024-11-25 02:22:50,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:22:50,386 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:22:50,388 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:22:50,388 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:22:50,394 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:22:50,394 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:22:50" (1/1) ... [2024-11-25 02:22:50,395 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71f131fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:22:50, skipping insertion in model container [2024-11-25 02:22:50,395 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:22:50" (1/1) ... [2024-11-25 02:22:50,413 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:22:50,577 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:629) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:3128) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:255) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1602) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:271) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:783) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:286) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1507) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:224) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1158) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1141) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:393) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1629) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3507) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2500) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:641) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:135) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:189) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:145) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-25 02:22:50,582 INFO L158 Benchmark]: Toolchain (without parser) took 195.83ms. Allocated memory is still 142.6MB. Free memory was 119.3MB in the beginning and 109.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:22:50,583 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 78.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:22:50,583 INFO L158 Benchmark]: CACSL2BoogieTranslator took 193.13ms. Allocated memory is still 142.6MB. Free memory was 119.3MB in the beginning and 109.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:22:50,584 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 78.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 193.13ms. Allocated memory is still 142.6MB. Free memory was 119.3MB in the beginning and 109.9MB 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_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3 --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 [2024-11-25 02:22:53,151 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:22:53,299 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf [2024-11-25 02:22:53,329 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:22:53,329 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:22:53,330 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:22:53,330 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:22:53,330 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:22:53,330 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:22:53,330 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:22:53,330 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 02:22:53,331 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 02:22:53,331 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:22:53,331 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:22:53,331 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:22:53,331 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:22:53,331 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-25 02:22:53,331 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-25 02:22:53,331 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 02:22:53,331 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-25 02:22:53,332 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 02:22:53,332 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 02:22:53,332 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:22:53,332 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:22:53,332 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:22:53,332 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:22:53,332 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:22:53,332 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:22:53,332 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 02:22:53,333 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-25 02:22:53,333 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:22:53,333 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:22:53,333 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:22:53,333 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:22:53,333 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:22:53,333 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-25 02:22:53,333 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 02:22:53,334 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-25 02:22:53,334 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_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 [2024-11-25 02:22:53,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:22:53,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:22:53,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:22:53,665 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:22:53,666 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:22:53,667 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i [2024-11-25 02:22:56,875 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/data/575aa5c32/e238e15d7c3d4062ac22056b7dfe786e/FLAGfe68493fc [2024-11-25 02:22:57,096 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:22:57,097 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i [2024-11-25 02:22:57,105 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/data/575aa5c32/e238e15d7c3d4062ac22056b7dfe786e/FLAGfe68493fc [2024-11-25 02:22:57,121 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/data/575aa5c32/e238e15d7c3d4062ac22056b7dfe786e [2024-11-25 02:22:57,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:22:57,128 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:22:57,131 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:22:57,133 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:22:57,138 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:22:57,139 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:22:57" (1/1) ... [2024-11-25 02:22:57,140 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f1cd14f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:22:57, skipping insertion in model container [2024-11-25 02:22:57,140 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:22:57" (1/1) ... [2024-11-25 02:22:57,166 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:22:57,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:22:57,442 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:22:57,496 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:22:57,522 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:22:57,523 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:22:57 WrapperNode [2024-11-25 02:22:57,524 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:22:57,525 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:22:57,525 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:22:57,525 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:22:57,536 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:22:57" (1/1) ... [2024-11-25 02:22:57,549 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:22:57" (1/1) ... [2024-11-25 02:22:57,576 INFO L138 Inliner]: procedures = 18, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 86 [2024-11-25 02:22:57,580 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:22:57,580 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:22:57,581 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:22:57,581 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:22:57,590 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:22:57" (1/1) ... [2024-11-25 02:22:57,590 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:22:57" (1/1) ... [2024-11-25 02:22:57,598 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:22:57" (1/1) ... [2024-11-25 02:22:57,598 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:22:57" (1/1) ... [2024-11-25 02:22:57,610 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:22:57" (1/1) ... [2024-11-25 02:22:57,613 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:22:57" (1/1) ... [2024-11-25 02:22:57,617 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:22:57" (1/1) ... [2024-11-25 02:22:57,619 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:22:57" (1/1) ... [2024-11-25 02:22:57,620 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:22:57" (1/1) ... [2024-11-25 02:22:57,623 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:22:57,624 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:22:57,624 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:22:57,624 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:22:57,625 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:22:57" (1/1) ... [2024-11-25 02:22:57,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:22:57,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:22:57,665 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:22:57,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:22:57,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 02:22:57,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-25 02:22:57,697 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-25 02:22:57,698 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-25 02:22:57,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:22:57,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:22:57,698 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-25 02:22:57,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-25 02:22:57,764 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:22:57,766 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:23:08,805 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-25 02:23:08,806 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:23:08,942 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:23:08,942 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-25 02:23:08,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:23:08 BoogieIcfgContainer [2024-11-25 02:23:08,943 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:23:08,944 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:23:08,944 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:23:08,953 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:23:08,953 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:23:08" (1/1) ... [2024-11-25 02:23:08,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:23:09,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:23:09,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2024-11-25 02:23:09,023 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2024-11-25 02:23:09,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-25 02:23:09,028 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:23:09,030 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 02:23:09,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 02:23:09,034 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 02:23:09,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-25 02:23:09,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:23:09,183 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 02:23:10,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:23:10,271 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-25 02:23:10,274 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:23:10,299 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 02:23:10,302 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2024-11-25 02:23:10,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-25 02:23:10,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:23:10,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2024-11-25 02:23:10,437 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2024-11-25 02:23:10,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-25 02:23:10,437 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:23:10,438 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 02:23:10,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 02:23:10,440 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 02:23:10,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-25 02:23:14,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:23:14,907 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 02:23:15,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:23:15,828 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-25 02:23:15,830 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:23:16,546 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 02:23:16,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-25 02:23:17,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:23:17,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 23 states and 29 transitions. [2024-11-25 02:23:17,794 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2024-11-25 02:23:17,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-25 02:23:17,795 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:23:17,795 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 02:23:17,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 02:23:17,801 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 02:23:17,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-25 02:23:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:23:23,058 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 02:23:23,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:23:24,224 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-25 02:23:24,226 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:23:26,035 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-25 02:23:26,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-25 02:23:30,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:23:30,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 34 states and 45 transitions. [2024-11-25 02:23:30,401 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2024-11-25 02:23:30,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-25 02:23:30,403 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:23:30,403 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 02:23:30,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 02:23:30,405 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 02:23:30,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-25 02:23:36,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:23:36,321 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 02:23:37,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:23:37,573 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-25 02:23:37,576 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:23:40,977 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-25 02:23:41,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-25 02:23:50,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:23:50,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 45 states and 61 transitions. [2024-11-25 02:23:50,232 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 61 transitions. [2024-11-25 02:23:50,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-25 02:23:50,235 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:23:50,235 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 02:23:50,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 02:23:50,237 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 02:23:50,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-25 02:23:56,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:23:56,118 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 02:23:57,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:23:57,373 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-25 02:23:57,376 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:24:02,266 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-25 02:24:02,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-25 02:24:13,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:24:13,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 56 states and 77 transitions. [2024-11-25 02:24:13,345 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2024-11-25 02:24:13,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-25 02:24:13,348 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:24:13,348 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 02:24:13,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 02:24:13,351 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 02:24:13,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-25 02:24:19,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:24:19,455 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 02:24:20,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:24:20,810 INFO L256 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-25 02:24:20,813 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:24:27,559 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 258 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-25 02:24:27,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2024-11-25 02:24:41,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:24:41,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 67 states and 93 transitions. [2024-11-25 02:24:41,244 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 93 transitions. [2024-11-25 02:24:41,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-25 02:24:41,246 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:24:41,246 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 02:24:41,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 02:24:41,249 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 02:24:41,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-25 02:24:47,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:24:47,562 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 02:24:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:24:49,239 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-25 02:24:49,244 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:24:58,129 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 0 proven. 425 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-25 02:24:58,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2024-11-25 02:25:14,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:25:14,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 78 states and 109 transitions. [2024-11-25 02:25:14,354 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 109 transitions. [2024-11-25 02:25:14,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-25 02:25:14,356 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:25:14,356 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 02:25:14,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 02:25:14,359 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 02:25:14,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-25 02:25:20,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:25:20,596 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 02:25:21,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:25:22,215 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-25 02:25:22,219 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:25:32,679 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 0 proven. 633 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-25 02:25:32,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2024-11-25 02:25:51,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:25:51,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 89 states and 125 transitions. [2024-11-25 02:25:51,768 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 125 transitions. [2024-11-25 02:25:51,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-25 02:25:51,771 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:25:51,771 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 02:25:51,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 02:25:51,774 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 02:25:51,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-25 02:25:58,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:25:58,377 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 02:25:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:25:59,994 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-25 02:25:59,997 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:26:12,776 INFO L134 CoverageAnalysis]: Checked inductivity of 968 backedges. 0 proven. 882 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-25 02:26:12,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2024-11-25 02:26:34,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:26:34,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 100 states and 141 transitions. [2024-11-25 02:26:34,954 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 141 transitions. [2024-11-25 02:26:34,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-25 02:26:34,957 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:26:34,957 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 02:26:34,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 02:26:34,960 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 02:26:34,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-25 02:26:41,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:26:41,788 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 02:26:43,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:26:43,495 INFO L256 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-25 02:26:43,504 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:26:58,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1270 backedges. 0 proven. 1172 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-25 02:26:58,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-11-25 02:27:24,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:27:24,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 111 states and 157 transitions. [2024-11-25 02:27:24,142 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 157 transitions. [2024-11-25 02:27:24,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-25 02:27:24,145 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:27:24,145 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 02:27:24,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 02:27:24,151 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 02:27:24,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2024-11-25 02:27:31,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:27:31,286 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 02:27:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:27:33,162 INFO L256 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-25 02:27:33,168 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:27:51,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1613 backedges. 0 proven. 1503 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-11-25 02:27:51,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2024-11-25 02:28:20,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:28:20,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 122 states and 173 transitions. [2024-11-25 02:28:20,572 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 173 transitions. [2024-11-25 02:28:20,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-25 02:28:20,576 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:28:20,576 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 02:28:20,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 02:28:20,579 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 02:28:20,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-11-25 02:28:27,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:28:27,926 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 02:28:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:28:29,925 INFO L256 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-25 02:28:29,929 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:28:50,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1997 backedges. 0 proven. 1875 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-25 02:28:50,653 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2024-11-25 02:29:25,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:29:25,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 133 states and 189 transitions. [2024-11-25 02:29:25,979 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 189 transitions. [2024-11-25 02:29:25,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-25 02:29:25,983 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:29:25,983 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 02:29:25,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 02:29:25,990 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 02:29:25,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-25 02:29:34,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:29:34,046 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 02:29:35,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:29:36,202 INFO L256 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-25 02:29:36,209 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:30:00,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2422 backedges. 0 proven. 2288 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-25 02:30:00,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2024-11-25 02:30:40,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:30:40,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 144 states and 205 transitions. [2024-11-25 02:30:40,372 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 205 transitions. [2024-11-25 02:30:40,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-25 02:30:40,375 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:30:40,375 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 02:30:40,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 02:30:40,378 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 02:30:40,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2024-11-25 02:30:48,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:30:48,527 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 02:30:50,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:30:51,108 INFO L256 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-25 02:30:51,112 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:31:19,240 INFO L134 CoverageAnalysis]: Checked inductivity of 2888 backedges. 0 proven. 2742 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-25 02:31:19,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2024-11-25 02:32:02,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:32:02,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 155 states and 221 transitions. [2024-11-25 02:32:02,613 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 221 transitions. [2024-11-25 02:32:02,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-25 02:32:02,616 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:32:02,616 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 02:32:02,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 02:32:02,619 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 02:32:02,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-11-25 02:32:11,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:32:11,514 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 02:32:13,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:32:13,816 INFO L256 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-25 02:32:13,821 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:32:45,749 INFO L134 CoverageAnalysis]: Checked inductivity of 3395 backedges. 0 proven. 3237 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2024-11-25 02:32:45,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2024-11-25 02:33:34,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:33:34,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 166 states and 237 transitions. [2024-11-25 02:33:34,053 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 237 transitions. [2024-11-25 02:33:34,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-25 02:33:34,055 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:33:34,056 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 02:33:34,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 02:33:34,060 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 02:33:34,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-25 02:33:43,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:33:43,439 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 02:33:45,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:33:45,648 INFO L256 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-25 02:33:45,656 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:34:21,671 INFO L134 CoverageAnalysis]: Checked inductivity of 3943 backedges. 0 proven. 3773 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2024-11-25 02:34:21,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2024-11-25 02:35:17,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:35:17,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 177 states and 253 transitions. [2024-11-25 02:35:17,961 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 253 transitions. [2024-11-25 02:35:17,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2024-11-25 02:35:17,964 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:35:17,964 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 02:35:17,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 02:35:17,967 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 02:35:17,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2024-11-25 02:35:27,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:35:27,254 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 02:35:29,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:35:29,748 INFO L256 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-25 02:35:29,754 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:36:09,438 INFO L134 CoverageAnalysis]: Checked inductivity of 4532 backedges. 0 proven. 4350 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-11-25 02:36:09,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2024-11-25 02:37:06,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:37:06,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 188 states and 269 transitions. [2024-11-25 02:37:06,269 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 269 transitions. [2024-11-25 02:37:06,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-11-25 02:37:06,270 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:37:06,270 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 02:37:06,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 02:37:06,272 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 02:37:06,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-11-25 02:37:14,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:37:14,103 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 02:37:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:37:16,820 INFO L256 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-25 02:37:16,824 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:37:58,113 INFO L134 CoverageAnalysis]: Checked inductivity of 5162 backedges. 0 proven. 4968 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-11-25 02:37:58,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f01adeca-41db-4983-b51b-8c916d054f85/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0