./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound100.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_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/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_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound100.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/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_4cff866d-b0f4-4495-a16b-9aa68643b590/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 a7fa1e9ac124be7df5e34562d5b429ca8fe63eb55860b2847e9a80f279d444ca --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 23:17:37,357 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 23:17:37,419 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-12-05 23:17:37,424 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 23:17:37,425 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 23:17:37,446 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 23:17:37,447 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 23:17:37,447 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 23:17:37,447 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 23:17:37,447 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 23:17:37,447 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 23:17:37,448 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 23:17:37,448 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 23:17:37,448 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 23:17:37,448 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 23:17:37,448 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 23:17:37,448 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 23:17:37,448 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 23:17:37,448 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 23:17:37,448 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-05 23:17:37,448 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 23:17:37,449 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 23:17:37,449 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 23:17:37,449 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 23:17:37,449 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 23:17:37,449 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 23:17:37,449 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 23:17:37,449 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 23:17:37,449 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 23:17:37,449 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:17:37,450 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 23:17:37,450 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 23:17:37,450 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 23:17:37,450 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 23:17:37,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 23:17:37,450 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_4cff866d-b0f4-4495-a16b-9aa68643b590/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 -> a7fa1e9ac124be7df5e34562d5b429ca8fe63eb55860b2847e9a80f279d444ca [2024-12-05 23:17:37,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 23:17:37,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 23:17:37,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 23:17:37,740 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 23:17:37,741 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 23:17:37,742 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound100.i [2024-12-05 23:17:40,692 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/data/57d1b6da5/47899286afcf4f08ab87fbcd632245fa/FLAGbbf1fda2e [2024-12-05 23:17:40,933 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 23:17:40,933 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound100.i [2024-12-05 23:17:40,941 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/data/57d1b6da5/47899286afcf4f08ab87fbcd632245fa/FLAGbbf1fda2e [2024-12-05 23:17:40,958 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/data/57d1b6da5/47899286afcf4f08ab87fbcd632245fa [2024-12-05 23:17:40,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 23:17:40,962 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 23:17:40,964 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 23:17:40,964 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 23:17:40,968 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 23:17:40,969 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:17:40" (1/1) ... [2024-12-05 23:17:40,970 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7358b1cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:17:40, skipping insertion in model container [2024-12-05 23:17:40,970 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:17:40" (1/1) ... [2024-12-05 23:17:40,985 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 23:17:41,123 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-12-05 23:17:41,130 INFO L158 Benchmark]: Toolchain (without parser) took 166.70ms. Allocated memory is still 142.6MB. Free memory was 116.1MB in the beginning and 106.6MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 23:17:41,130 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 142.6MB. Free memory is still 82.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:17:41,131 INFO L158 Benchmark]: CACSL2BoogieTranslator took 164.28ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 106.6MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 23:17:41,132 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 142.6MB. Free memory is still 82.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 164.28ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 106.6MB in the end (delta: 9.2MB). 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_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/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_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound100.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/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_4cff866d-b0f4-4495-a16b-9aa68643b590/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 a7fa1e9ac124be7df5e34562d5b429ca8fe63eb55860b2847e9a80f279d444ca --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 23:17:43,186 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 23:17:43,280 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf [2024-12-05 23:17:43,310 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 23:17:43,311 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 23:17:43,311 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 23:17:43,311 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 23:17:43,311 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 23:17:43,312 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 23:17:43,312 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 23:17:43,312 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 23:17:43,312 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 23:17:43,312 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 23:17:43,312 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 23:17:43,312 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 23:17:43,312 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 23:17:43,312 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-05 23:17:43,312 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-05 23:17:43,313 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-05 23:17:43,313 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-05 23:17:43,313 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-05 23:17:43,313 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 23:17:43,313 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 23:17:43,313 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 23:17:43,313 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 23:17:43,313 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 23:17:43,313 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 23:17:43,313 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 23:17:43,313 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 23:17:43,314 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-12-05 23:17:43,314 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 23:17:43,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:17:43,314 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 23:17:43,315 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 23:17:43,315 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 23:17:43,315 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-12-05 23:17:43,315 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-05 23:17:43,315 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-12-05 23:17:43,315 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_4cff866d-b0f4-4495-a16b-9aa68643b590/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 -> a7fa1e9ac124be7df5e34562d5b429ca8fe63eb55860b2847e9a80f279d444ca [2024-12-05 23:17:43,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 23:17:43,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 23:17:43,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 23:17:43,631 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 23:17:43,632 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 23:17:43,634 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound100.i [2024-12-05 23:17:46,600 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/data/f150956d4/dd9bcd921f824deea942e4a0c9b3282e/FLAGf44e74b7f [2024-12-05 23:17:46,818 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 23:17:46,819 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound100.i [2024-12-05 23:17:46,828 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/data/f150956d4/dd9bcd921f824deea942e4a0c9b3282e/FLAGf44e74b7f [2024-12-05 23:17:47,159 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/data/f150956d4/dd9bcd921f824deea942e4a0c9b3282e [2024-12-05 23:17:47,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 23:17:47,162 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 23:17:47,163 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 23:17:47,163 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 23:17:47,167 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 23:17:47,168 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:17:47" (1/1) ... [2024-12-05 23:17:47,168 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c28f6f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:17:47, skipping insertion in model container [2024-12-05 23:17:47,168 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:17:47" (1/1) ... [2024-12-05 23:17:47,181 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 23:17:47,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:17:47,334 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 23:17:47,361 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:17:47,375 INFO L204 MainTranslator]: Completed translation [2024-12-05 23:17:47,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:17:47 WrapperNode [2024-12-05 23:17:47,376 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 23:17:47,377 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 23:17:47,377 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 23:17:47,377 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 23:17:47,382 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:17:47" (1/1) ... [2024-12-05 23:17:47,391 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:17:47" (1/1) ... [2024-12-05 23:17:47,412 INFO L138 Inliner]: procedures = 18, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 86 [2024-12-05 23:17:47,412 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 23:17:47,413 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 23:17:47,413 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 23:17:47,413 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 23:17:47,420 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:17:47" (1/1) ... [2024-12-05 23:17:47,420 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:17:47" (1/1) ... [2024-12-05 23:17:47,424 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:17:47" (1/1) ... [2024-12-05 23:17:47,424 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:17:47" (1/1) ... [2024-12-05 23:17:47,432 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:17:47" (1/1) ... [2024-12-05 23:17:47,433 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:17:47" (1/1) ... [2024-12-05 23:17:47,436 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:17:47" (1/1) ... [2024-12-05 23:17:47,438 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:17:47" (1/1) ... [2024-12-05 23:17:47,439 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:17:47" (1/1) ... [2024-12-05 23:17:47,442 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 23:17:47,443 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 23:17:47,443 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 23:17:47,443 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 23:17:47,444 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:17:47" (1/1) ... [2024-12-05 23:17:47,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:17:47,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 23:17:47,473 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 23:17:47,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 23:17:47,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 23:17:47,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-12-05 23:17:47,499 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-05 23:17:47,499 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-05 23:17:47,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 23:17:47,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 23:17:47,499 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-05 23:17:47,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-05 23:17:47,561 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 23:17:47,563 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 23:17:58,543 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-12-05 23:17:58,543 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 23:17:58,637 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 23:17:58,637 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-05 23:17:58,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:17:58 BoogieIcfgContainer [2024-12-05 23:17:58,638 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 23:17:58,638 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 23:17:58,638 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 23:17:58,646 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 23:17:58,647 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:17:58" (1/1) ... [2024-12-05 23:17:58,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 23:17:58,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:17:58,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2024-12-05 23:17:58,697 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2024-12-05 23:17:58,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-05 23:17:58,700 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:17:58,701 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:17:58,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:17:58,703 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:17:58,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-12-05 23:17:58,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:17:58,801 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:17:59,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:17:59,912 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-05 23:17:59,915 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:17:59,936 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 23:17:59,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-12-05 23:18:00,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:18:00,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2024-12-05 23:18:00,074 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2024-12-05 23:18:00,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-05 23:18:00,075 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:18:00,075 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:18:00,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:18:00,077 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:18:00,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-12-05 23:18:04,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:18:04,819 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:18:05,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:18:05,763 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-05 23:18:05,765 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:18:06,430 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 23:18:06,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-12-05 23:18:07,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:18:07,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 23 states and 29 transitions. [2024-12-05 23:18:07,551 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2024-12-05 23:18:07,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-12-05 23:18:07,551 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:18:07,552 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:18:07,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:18:07,554 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:18:07,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-12-05 23:18:12,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:18:12,882 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:18:13,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:18:13,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-05 23:18:13,896 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:18:15,752 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-12-05 23:18:15,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-12-05 23:18:19,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:18:19,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 34 states and 45 transitions. [2024-12-05 23:18:19,959 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2024-12-05 23:18:19,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-12-05 23:18:19,960 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:18:19,960 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:18:19,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:18:19,963 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:18:19,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-12-05 23:18:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:18:25,489 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:18:26,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:18:26,677 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-05 23:18:26,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:18:30,007 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-12-05 23:18:30,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-12-05 23:18:38,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:18:38,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 45 states and 61 transitions. [2024-12-05 23:18:38,812 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 61 transitions. [2024-12-05 23:18:38,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-12-05 23:18:38,814 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:18:38,814 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:18:38,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:18:38,816 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:18:38,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-12-05 23:18:44,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:18:44,577 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:18:45,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:18:45,798 INFO L256 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-05 23:18:45,801 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:18:50,917 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-12-05 23:18:50,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-12-05 23:19:02,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:19:02,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 56 states and 77 transitions. [2024-12-05 23:19:02,186 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2024-12-05 23:19:02,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-05 23:19:02,187 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:19:02,187 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:19:02,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:19:02,189 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:19:02,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-12-05 23:19:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:19:08,099 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:19:09,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:19:09,421 INFO L256 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-05 23:19:09,423 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:19:16,241 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 258 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-12-05 23:19:16,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-12-05 23:19:30,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:19:30,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 67 states and 93 transitions. [2024-12-05 23:19:30,131 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 93 transitions. [2024-12-05 23:19:30,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-12-05 23:19:30,134 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:19:30,134 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:19:30,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:19:30,136 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:19:30,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-12-05 23:19:36,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:19:36,271 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:19:37,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:19:37,655 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-05 23:19:37,659 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:19:46,374 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 0 proven. 425 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-12-05 23:19:46,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-12-05 23:20:00,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:20:00,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 78 states and 109 transitions. [2024-12-05 23:20:00,782 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 109 transitions. [2024-12-05 23:20:00,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-05 23:20:00,783 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:20:00,783 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:20:00,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:20:00,785 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:20:00,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-12-05 23:20:06,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:20:06,247 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:20:07,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:20:07,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-05 23:20:07,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:20:17,295 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 0 proven. 633 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-12-05 23:20:17,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2024-12-05 23:20:35,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:20:35,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 89 states and 125 transitions. [2024-12-05 23:20:35,429 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 125 transitions. [2024-12-05 23:20:35,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-05 23:20:35,431 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:20:35,431 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:20:35,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:20:35,434 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:20:35,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-12-05 23:20:41,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:20:41,615 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:20:42,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:20:43,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-05 23:20:43,125 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:20:55,178 INFO L134 CoverageAnalysis]: Checked inductivity of 968 backedges. 0 proven. 882 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-12-05 23:20:55,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-12-05 23:21:16,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:21:16,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 100 states and 141 transitions. [2024-12-05 23:21:16,456 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 141 transitions. [2024-12-05 23:21:16,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-05 23:21:16,459 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:21:16,459 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:21:16,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:21:16,462 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:21:16,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-12-05 23:21:23,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:21:23,348 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:21:24,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:21:25,185 INFO L256 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-12-05 23:21:25,188 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:21:39,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1270 backedges. 0 proven. 1172 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-12-05 23:21:39,185 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-12-05 23:22:01,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:22:01,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 111 states and 157 transitions. [2024-12-05 23:22:01,838 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 157 transitions. [2024-12-05 23:22:01,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-12-05 23:22:01,840 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:22:01,840 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:22:01,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:22:01,842 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:22:01,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2024-12-05 23:22:08,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:22:08,136 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:22:09,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:22:09,621 INFO L256 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-12-05 23:22:09,624 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:22:25,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1613 backedges. 0 proven. 1503 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-12-05 23:22:25,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2024-12-05 23:22:50,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:22:50,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 122 states and 173 transitions. [2024-12-05 23:22:50,994 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 173 transitions. [2024-12-05 23:22:50,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-12-05 23:22:50,996 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:22:50,996 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:22:50,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:22:50,998 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:22:50,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-12-05 23:22:57,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:22:57,440 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:22:58,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:22:58,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-12-05 23:22:59,001 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:23:17,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1997 backedges. 0 proven. 1875 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-12-05 23:23:17,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2024-12-05 23:23:47,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:23:47,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 133 states and 189 transitions. [2024-12-05 23:23:47,454 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 189 transitions. [2024-12-05 23:23:47,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-12-05 23:23:47,456 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:23:47,456 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:23:47,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:23:47,459 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:23:47,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-12-05 23:23:54,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:23:54,134 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:23:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:23:55,986 INFO L256 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-12-05 23:23:55,995 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:24:17,621 INFO L134 CoverageAnalysis]: Checked inductivity of 2422 backedges. 0 proven. 2288 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-12-05 23:24:17,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2024-12-05 23:24:51,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:24:51,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 144 states and 205 transitions. [2024-12-05 23:24:51,699 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 205 transitions. [2024-12-05 23:24:51,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-12-05 23:24:51,701 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:24:51,701 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:24:51,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:24:51,703 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:24:51,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2024-12-05 23:24:58,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:24:58,847 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:25:00,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:25:01,006 INFO L256 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-12-05 23:25:01,011 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:25:25,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2888 backedges. 0 proven. 2742 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-12-05 23:25:25,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2024-12-05 23:26:03,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:26:03,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 155 states and 221 transitions. [2024-12-05 23:26:03,114 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 221 transitions. [2024-12-05 23:26:03,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-12-05 23:26:03,116 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:26:03,116 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:26:03,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:26:03,118 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:26:03,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-12-05 23:26:10,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:26:10,043 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:26:11,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:26:12,129 INFO L256 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-12-05 23:26:12,133 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:26:39,339 INFO L134 CoverageAnalysis]: Checked inductivity of 3395 backedges. 0 proven. 3237 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2024-12-05 23:26:39,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2024-12-05 23:27:21,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:27:21,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 166 states and 237 transitions. [2024-12-05 23:27:21,564 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 237 transitions. [2024-12-05 23:27:21,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-12-05 23:27:21,566 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:27:21,567 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:27:21,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:27:21,569 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:27:21,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-12-05 23:27:28,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:27:28,347 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:27:29,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:27:30,096 INFO L256 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-12-05 23:27:30,100 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:27:59,006 INFO L134 CoverageAnalysis]: Checked inductivity of 3943 backedges. 0 proven. 3773 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2024-12-05 23:27:59,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2024-12-05 23:28:42,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:28:42,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 177 states and 253 transitions. [2024-12-05 23:28:42,565 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 253 transitions. [2024-12-05 23:28:42,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2024-12-05 23:28:42,567 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:28:42,567 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:28:42,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:28:42,569 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:28:42,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2024-12-05 23:28:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:28:49,430 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:28:50,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:28:51,299 INFO L256 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-12-05 23:28:51,303 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:29:23,350 INFO L134 CoverageAnalysis]: Checked inductivity of 4532 backedges. 0 proven. 4350 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-12-05 23:29:23,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2024-12-05 23:30:13,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:30:13,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 188 states and 269 transitions. [2024-12-05 23:30:13,371 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 269 transitions. [2024-12-05 23:30:13,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-12-05 23:30:13,372 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:30:13,372 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:30:13,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:30:13,374 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:30:13,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-12-05 23:30:20,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:30:20,699 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:30:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:30:22,738 INFO L256 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-12-05 23:30:22,742 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:30:59,910 INFO L134 CoverageAnalysis]: Checked inductivity of 5162 backedges. 0 proven. 4968 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-12-05 23:30:59,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2024-12-05 23:31:54,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:31:54,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 199 states and 285 transitions. [2024-12-05 23:31:54,832 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 285 transitions. [2024-12-05 23:31:54,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-12-05 23:31:54,834 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:31:54,834 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-12-05 23:31:54,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 [2024-12-05 23:31:54,836 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-12-05 23:31:54,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-12-05 23:32:02,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:32:02,342 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-12-05 23:32:03,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:32:04,509 INFO L256 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-12-05 23:32:04,514 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:32:45,196 INFO L134 CoverageAnalysis]: Checked inductivity of 5833 backedges. 0 proven. 5627 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2024-12-05 23:32:45,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cff866d-b0f4-4495-a16b-9aa68643b590/bin/ukojak-verify-CZk0znPC7b/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0