./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/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_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f7d8666e561276f52fdb57f95324433fec798c5d47b9bb4ca4cdc06eae6ff06b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 03:44:50,337 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 03:44:50,447 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-25 03:44:50,453 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 03:44:50,454 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 03:44:50,484 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 03:44:50,485 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 03:44:50,486 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 03:44:50,487 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 03:44:50,487 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 03:44:50,487 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 03:44:50,487 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 03:44:50,487 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 03:44:50,487 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 03:44:50,488 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 03:44:50,488 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 03:44:50,488 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 03:44:50,488 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 03:44:50,488 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 03:44:50,488 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 03:44:50,488 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 03:44:50,488 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 03:44:50,488 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 03:44:50,488 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 03:44:50,489 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 03:44:50,489 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 03:44:50,489 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 03:44:50,489 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:44:50,489 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 03:44:50,489 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 03:44:50,489 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 03:44:50,489 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 03:44:50,489 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 03:44:50,490 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_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7d8666e561276f52fdb57f95324433fec798c5d47b9bb4ca4cdc06eae6ff06b [2024-11-25 03:44:50,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 03:44:50,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 03:44:50,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 03:44:50,903 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 03:44:50,903 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 03:44:50,905 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i [2024-11-25 03:44:54,063 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/data/3dcbc0931/6662cc25d4b24768bdb295034239127c/FLAG1cba3dfff [2024-11-25 03:44:54,398 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 03:44:54,404 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i [2024-11-25 03:44:54,413 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/data/3dcbc0931/6662cc25d4b24768bdb295034239127c/FLAG1cba3dfff [2024-11-25 03:44:54,439 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/data/3dcbc0931/6662cc25d4b24768bdb295034239127c [2024-11-25 03:44:54,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 03:44:54,446 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 03:44:54,450 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 03:44:54,450 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 03:44:54,456 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 03:44:54,457 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:44:54" (1/1) ... [2024-11-25 03:44:54,461 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66ec499e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:44:54, skipping insertion in model container [2024-11-25 03:44:54,462 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:44:54" (1/1) ... [2024-11-25 03:44:54,485 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 03:44:54,713 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i[948,961] [2024-11-25 03:44:54,741 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-25 03:44:54,748 INFO L158 Benchmark]: Toolchain (without parser) took 301.79ms. Allocated memory is still 142.6MB. Free memory was 118.9MB in the beginning and 109.4MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 03:44:54,749 INFO L158 Benchmark]: CDTParser took 0.77ms. Allocated memory is still 142.6MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:44:54,750 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.72ms. Allocated memory is still 142.6MB. Free memory was 118.9MB in the beginning and 109.4MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 03:44:54,751 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77ms. Allocated memory is still 142.6MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 296.72ms. Allocated memory is still 142.6MB. Free memory was 118.9MB in the beginning and 109.4MB in the end (delta: 9.5MB). 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_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/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_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f7d8666e561276f52fdb57f95324433fec798c5d47b9bb4ca4cdc06eae6ff06b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 03:44:57,472 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 03:44:57,614 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2024-11-25 03:44:57,646 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 03:44:57,647 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 03:44:57,647 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 03:44:57,647 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 03:44:57,647 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 03:44:57,648 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 03:44:57,648 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 03:44:57,648 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 03:44:57,648 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 03:44:57,648 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 03:44:57,648 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 03:44:57,648 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 03:44:57,648 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 03:44:57,648 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-25 03:44:57,648 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-25 03:44:57,649 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-25 03:44:57,649 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 03:44:57,649 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 03:44:57,649 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 03:44:57,649 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 03:44:57,649 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 03:44:57,649 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 03:44:57,649 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 03:44:57,650 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 03:44:57,650 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-25 03:44:57,650 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 03:44:57,650 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:44:57,650 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 03:44:57,650 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 03:44:57,650 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 03:44:57,650 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-25 03:44:57,651 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 03:44:57,651 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-25 03:44:57,651 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_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7d8666e561276f52fdb57f95324433fec798c5d47b9bb4ca4cdc06eae6ff06b [2024-11-25 03:44:58,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 03:44:58,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 03:44:58,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 03:44:58,047 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 03:44:58,047 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 03:44:58,049 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i [2024-11-25 03:45:01,241 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/data/f875c255b/92306de5cfa44851a49b4e7be85e0b3f/FLAGccd7b4d3c [2024-11-25 03:45:01,533 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 03:45:01,534 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i [2024-11-25 03:45:01,543 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/data/f875c255b/92306de5cfa44851a49b4e7be85e0b3f/FLAGccd7b4d3c [2024-11-25 03:45:01,570 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/data/f875c255b/92306de5cfa44851a49b4e7be85e0b3f [2024-11-25 03:45:01,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 03:45:01,576 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 03:45:01,579 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 03:45:01,579 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 03:45:01,586 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 03:45:01,587 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:45:01" (1/1) ... [2024-11-25 03:45:01,588 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f6c01cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:01, skipping insertion in model container [2024-11-25 03:45:01,588 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:45:01" (1/1) ... [2024-11-25 03:45:01,617 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 03:45:01,837 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i[948,961] [2024-11-25 03:45:01,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:45:01,924 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 03:45:01,941 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i[948,961] [2024-11-25 03:45:01,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:45:02,009 INFO L204 MainTranslator]: Completed translation [2024-11-25 03:45:02,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:02 WrapperNode [2024-11-25 03:45:02,010 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 03:45:02,011 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 03:45:02,011 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 03:45:02,012 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 03:45:02,022 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:02" (1/1) ... [2024-11-25 03:45:02,037 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:02" (1/1) ... [2024-11-25 03:45:02,068 INFO L138 Inliner]: procedures = 18, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 74 [2024-11-25 03:45:02,068 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 03:45:02,069 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 03:45:02,069 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 03:45:02,069 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 03:45:02,081 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:02" (1/1) ... [2024-11-25 03:45:02,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:02" (1/1) ... [2024-11-25 03:45:02,086 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:02" (1/1) ... [2024-11-25 03:45:02,086 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:02" (1/1) ... [2024-11-25 03:45:02,101 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:02" (1/1) ... [2024-11-25 03:45:02,106 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:02" (1/1) ... [2024-11-25 03:45:02,110 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:02" (1/1) ... [2024-11-25 03:45:02,115 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:02" (1/1) ... [2024-11-25 03:45:02,118 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:02" (1/1) ... [2024-11-25 03:45:02,122 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 03:45:02,123 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 03:45:02,123 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 03:45:02,127 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 03:45:02,129 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:45:02" (1/1) ... [2024-11-25 03:45:02,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:45:02,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 03:45:02,179 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 03:45:02,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 03:45:02,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 03:45:02,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-25 03:45:02,215 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-25 03:45:02,215 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-25 03:45:02,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 03:45:02,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 03:45:02,216 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-25 03:45:02,216 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-25 03:45:02,316 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 03:45:02,318 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 03:45:13,331 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-25 03:45:13,332 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 03:45:13,524 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 03:45:13,524 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-25 03:45:13,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:45:13 BoogieIcfgContainer [2024-11-25 03:45:13,525 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 03:45:13,526 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 03:45:13,526 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 03:45:13,537 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 03:45:13,537 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:45:13" (1/1) ... [2024-11-25 03:45:13,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 03:45:13,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:45:13,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2024-11-25 03:45:13,603 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2024-11-25 03:45:13,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-25 03:45:13,609 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:45:13,610 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:45:13,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:45:13,616 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:45:13,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-25 03:45:25,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:45:25,415 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:45:29,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:45:29,908 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-25 03:45:29,916 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:45:38,388 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-25 03:45:38,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-25 03:45:52,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.89s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-25 03:46:02,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-25 03:46:15,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.84s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-25 03:46:25,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-25 03:46:35,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-25 03:46:45,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-25 03:46:50,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-25 03:46:51,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:46:51,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 25 states and 38 transitions. [2024-11-25 03:46:51,196 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2024-11-25 03:46:51,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-25 03:46:51,198 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:46:51,198 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:46:51,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:46:51,202 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:46:51,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-25 03:47:02,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:47:02,619 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:47:05,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:47:05,992 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-25 03:47:05,994 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:47:12,400 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-25 03:47:12,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-25 03:47:12,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:47:12,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 25 states and 38 transitions. [2024-11-25 03:47:12,485 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2024-11-25 03:47:12,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-25 03:47:12,485 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:47:12,485 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:47:12,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:47:12,489 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:47:12,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-25 03:47:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:47:24,301 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:47:29,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:47:30,098 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-25 03:47:30,101 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:47:56,451 WARN L286 SmtUtils]: Spent 22.16s on a formula simplification. DAG size of input: 3 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-25 03:47:56,569 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-25 03:47:56,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-25 03:47:56,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:47:56,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 25 states and 38 transitions. [2024-11-25 03:47:56,643 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2024-11-25 03:47:56,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-25 03:47:56,644 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:47:56,644 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:47:56,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:47:56,649 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:47:56,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-25 03:48:08,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:48:08,713 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:48:12,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:48:12,439 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-25 03:48:12,441 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:48:20,221 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-25 03:48:20,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-25 03:48:20,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:48:20,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 25 states and 38 transitions. [2024-11-25 03:48:20,292 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2024-11-25 03:48:20,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-25 03:48:20,292 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:48:20,293 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:48:20,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:48:20,299 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:48:20,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-25 03:48:31,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:48:31,968 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:48:38,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:48:38,299 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-25 03:48:38,302 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:49:02,345 WARN L286 SmtUtils]: Spent 22.63s on a formula simplification. DAG size of input: 3 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-25 03:49:04,908 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-25 03:49:04,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2024-11-25 03:49:04,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:49:04,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 25 states and 38 transitions. [2024-11-25 03:49:04,975 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2024-11-25 03:49:04,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-25 03:49:04,976 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:49:04,976 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:49:04,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:49:04,981 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:49:04,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-25 03:49:16,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:49:16,568 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:49:20,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:49:21,193 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-25 03:49:21,197 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:49:45,016 WARN L286 SmtUtils]: Spent 22.39s on a formula simplification. DAG size of input: 3 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-25 03:49:47,643 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-25 03:49:47,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2024-11-25 03:49:47,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:49:47,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 25 states and 38 transitions. [2024-11-25 03:49:47,709 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2024-11-25 03:49:47,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-25 03:49:47,711 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:49:47,711 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:49:47,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:49:47,713 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:49:47,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-25 03:49:58,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:49:58,993 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:50:02,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:50:02,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-25 03:50:02,397 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:50:27,078 WARN L286 SmtUtils]: Spent 23.30s on a formula simplification. DAG size of input: 3 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-25 03:50:29,191 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-25 03:50:29,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2024-11-25 03:50:29,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:50:29,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 25 states and 38 transitions. [2024-11-25 03:50:29,277 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2024-11-25 03:50:29,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-25 03:50:29,279 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:50:29,279 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:50:29,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:50:29,281 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:50:29,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-25 03:50:41,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:50:41,134 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:50:45,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:50:45,738 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-25 03:50:45,740 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:51:10,801 WARN L286 SmtUtils]: Spent 23.48s on a formula simplification. DAG size of input: 3 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-25 03:51:14,427 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-25 03:51:14,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2024-11-25 03:51:14,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:51:14,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 25 states and 38 transitions. [2024-11-25 03:51:14,507 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2024-11-25 03:51:14,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-25 03:51:14,508 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:51:14,508 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:51:14,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:51:14,515 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:51:14,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-25 03:51:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:51:26,362 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:51:30,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:51:30,486 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-25 03:51:30,488 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:51:54,727 WARN L286 SmtUtils]: Spent 22.73s on a formula simplification. DAG size of input: 3 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-25 03:51:58,146 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-25 03:51:58,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-11-25 03:51:58,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:51:58,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 25 states and 38 transitions. [2024-11-25 03:51:58,217 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2024-11-25 03:51:58,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-25 03:51:58,217 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:51:58,218 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:51:58,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:51:58,219 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:51:58,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-25 03:52:09,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:52:09,963 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:52:13,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:52:14,077 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-25 03:52:14,079 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:52:38,148 WARN L286 SmtUtils]: Spent 22.42s on a formula simplification. DAG size of input: 3 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-25 03:52:41,179 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-25 03:52:41,235 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-11-25 03:52:41,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:52:41,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 25 states and 38 transitions. [2024-11-25 03:52:41,245 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2024-11-25 03:52:41,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-25 03:52:41,246 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:52:41,246 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:52:41,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:52:41,248 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:52:41,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2024-11-25 03:52:53,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:52:53,684 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:52:57,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:52:58,137 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-25 03:52:58,139 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:53:22,238 WARN L286 SmtUtils]: Spent 22.71s on a formula simplification. DAG size of input: 3 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-25 03:53:25,283 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-25 03:53:25,344 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2024-11-25 03:53:25,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:53:25,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 25 states and 38 transitions. [2024-11-25 03:53:25,354 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2024-11-25 03:53:25,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-25 03:53:25,355 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:53:25,355 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:53:25,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:53:25,357 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:53:25,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-11-25 03:53:37,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:53:37,276 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:53:41,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:53:41,272 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-25 03:53:41,273 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:54:07,608 WARN L286 SmtUtils]: Spent 22.32s on a formula simplification. DAG size of input: 3 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-25 03:54:07,709 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-25 03:54:07,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2024-11-25 03:54:07,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:54:07,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 25 states and 38 transitions. [2024-11-25 03:54:07,775 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2024-11-25 03:54:07,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-25 03:54:07,779 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:54:07,779 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:54:07,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:54:07,783 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:54:07,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-25 03:54:18,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:54:18,788 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:54:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:54:23,032 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-25 03:54:23,034 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:54:48,608 WARN L286 SmtUtils]: Spent 21.88s on a formula simplification. DAG size of input: 3 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-25 03:54:48,750 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-25 03:54:48,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2024-11-25 03:54:48,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:54:48,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 25 states and 38 transitions. [2024-11-25 03:54:48,842 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2024-11-25 03:54:48,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-25 03:54:48,843 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:54:48,843 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:54:48,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:54:48,848 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:54:48,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2024-11-25 03:54:59,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:54:59,828 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:55:03,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:55:03,568 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-25 03:55:03,569 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:55:09,684 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-25 03:55:09,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2024-11-25 03:55:09,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:55:09,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 25 states and 38 transitions. [2024-11-25 03:55:09,750 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2024-11-25 03:55:09,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-25 03:55:09,751 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:55:09,751 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:55:09,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:55:09,755 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:55:09,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-11-25 03:55:20,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:55:20,685 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:55:26,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:55:27,101 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-25 03:55:27,102 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:55:53,252 WARN L286 SmtUtils]: Spent 22.25s on a formula simplification. DAG size of input: 3 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-25 03:55:53,348 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-25 03:55:53,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2024-11-25 03:55:53,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:55:53,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 25 states and 38 transitions. [2024-11-25 03:55:53,412 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2024-11-25 03:55:53,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-25 03:55:53,412 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:55:53,412 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:55:53,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:55:53,414 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:55:53,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-25 03:56:04,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:56:04,291 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:56:08,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:56:08,634 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-25 03:56:08,635 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:56:35,682 WARN L286 SmtUtils]: Spent 22.58s on a formula simplification. DAG size of input: 3 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-25 03:56:35,822 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-25 03:56:35,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2024-11-25 03:56:35,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:56:35,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 25 states and 38 transitions. [2024-11-25 03:56:35,911 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2024-11-25 03:56:35,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-25 03:56:35,911 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:56:35,911 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:56:35,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:56:35,913 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:56:35,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2024-11-25 03:56:47,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:56:47,038 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:56:50,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:56:50,422 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-25 03:56:50,423 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:57:16,615 WARN L286 SmtUtils]: Spent 22.41s on a formula simplification. DAG size of input: 3 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-25 03:57:16,722 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-25 03:57:16,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2024-11-25 03:57:16,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:57:16,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 25 states and 38 transitions. [2024-11-25 03:57:16,804 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2024-11-25 03:57:16,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-25 03:57:16,808 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:57:16,808 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:57:16,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:57:16,811 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:57:16,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-11-25 03:57:28,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:57:28,317 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:57:32,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:57:32,275 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-25 03:57:32,276 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:57:39,207 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-25 03:57:39,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2024-11-25 03:57:39,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:57:39,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 25 states and 38 transitions. [2024-11-25 03:57:39,276 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2024-11-25 03:57:39,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-25 03:57:39,276 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:57:39,276 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:57:39,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:57:39,280 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:57:39,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-25 03:57:50,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:57:50,684 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:57:55,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:57:55,550 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-25 03:57:55,551 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:58:02,065 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-25 03:58:02,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2024-11-25 03:58:02,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:58:02,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 25 states and 38 transitions. [2024-11-25 03:58:02,130 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2024-11-25 03:58:02,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-25 03:58:02,131 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:58:02,131 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:58:02,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:58:02,133 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:58:02,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2024-11-25 03:58:14,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:58:14,087 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:58:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:58:18,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-25 03:58:18,925 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:58:46,847 WARN L286 SmtUtils]: Spent 22.85s on a formula simplification. DAG size of input: 3 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-25 03:58:46,940 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-25 03:58:46,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2024-11-25 03:58:47,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:58:47,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 25 states and 38 transitions. [2024-11-25 03:58:47,007 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2024-11-25 03:58:47,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-25 03:58:47,009 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:58:47,009 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:58:47,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:58:47,013 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:58:47,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2024-11-25 03:58:59,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:58:59,128 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:59:03,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:59:03,535 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-25 03:59:03,536 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:59:30,335 WARN L286 SmtUtils]: Spent 23.00s on a formula simplification. DAG size of input: 3 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-25 03:59:30,436 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-25 03:59:30,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2024-11-25 03:59:30,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:59:30,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 25 states and 38 transitions. [2024-11-25 03:59:30,506 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2024-11-25 03:59:30,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-25 03:59:30,507 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:59:30,507 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:59:30,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:59:30,509 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:59:30,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2024-11-25 03:59:42,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:59:42,048 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:59:45,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:59:45,591 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-25 03:59:45,592 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 04:00:09,237 WARN L286 SmtUtils]: Spent 22.27s on a formula simplification. DAG size of input: 3 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-25 04:00:12,002 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-25 04:00:12,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2024-11-25 04:00:12,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 04:00:12,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 25 states and 38 transitions. [2024-11-25 04:00:12,060 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2024-11-25 04:00:12,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-25 04:00:12,060 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 04:00:12,061 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 04:00:12,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 04:00:12,062 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 04:00:12,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39b665f6-dbe3-4b77-adac-f3d77d337d1c/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process