./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound50.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound50.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9755abd7d064e34f28a7925956d70f347b4f23d37bcf6f990a1fbab92f669b34 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:10:36,683 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:10:36,808 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-19 03:10:36,816 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:10:36,817 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:10:36,869 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:10:36,870 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:10:36,871 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:10:36,872 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:10:36,877 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:10:36,878 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:10:36,878 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:10:36,879 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:10:36,881 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:10:36,881 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:10:36,882 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:10:36,882 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:10:36,883 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:10:36,883 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:10:36,883 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:10:36,884 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:10:36,885 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:10:36,885 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:10:36,885 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:10:36,886 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:10:36,886 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:10:36,887 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:10:36,888 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:10:36,888 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:10:36,889 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:10:36,890 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:10:36,891 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:10:36,891 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:10:36,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:10:36,891 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:10:36,892 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9755abd7d064e34f28a7925956d70f347b4f23d37bcf6f990a1fbab92f669b34 [2023-11-19 03:10:37,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:10:37,305 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:10:37,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:10:37,310 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:10:37,310 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:10:37,312 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound50.i [2023-11-19 03:10:40,343 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:10:40,580 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:10:40,581 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound50.i [2023-11-19 03:10:40,589 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/data/f7aba7f5f/2c6492533c9a4d0b95a1ba3871f97820/FLAG504a18f70 [2023-11-19 03:10:40,605 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/data/f7aba7f5f/2c6492533c9a4d0b95a1ba3871f97820 [2023-11-19 03:10:40,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:10:40,618 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:10:40,620 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:10:40,620 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:10:40,626 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:10:40,626 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:10:40" (1/1) ... [2023-11-19 03:10:40,628 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57962bac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:40, skipping insertion in model container [2023-11-19 03:10:40,628 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:10:40" (1/1) ... [2023-11-19 03:10:40,655 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:10:40,828 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:610) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:2254) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:245) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1484) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:269) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:284) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1427) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:222) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:383) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1510) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:157) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3408) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2429) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:611) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:133) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:117) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:147) 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) [2023-11-19 03:10:40,833 INFO L158 Benchmark]: Toolchain (without parser) took 213.43ms. Allocated memory is still 169.9MB. Free memory was 140.0MB in the beginning and 131.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 03:10:40,834 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 121.6MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:10:40,835 INFO L158 Benchmark]: CACSL2BoogieTranslator took 211.12ms. Allocated memory is still 169.9MB. Free memory was 140.0MB in the beginning and 131.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 03:10:40,837 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 121.6MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 211.12ms. Allocated memory is still 169.9MB. Free memory was 140.0MB in the beginning and 131.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:610) 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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound50.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9755abd7d064e34f28a7925956d70f347b4f23d37bcf6f990a1fbab92f669b34 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:10:43,369 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:10:43,471 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf [2023-11-19 03:10:43,507 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:10:43,508 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:10:43,509 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:10:43,510 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:10:43,511 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:10:43,511 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:10:43,512 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:10:43,513 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:10:43,513 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:10:43,514 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:10:43,515 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:10:43,516 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:10:43,516 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:10:43,517 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 03:10:43,518 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 03:10:43,518 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:10:43,519 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 03:10:43,520 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:10:43,520 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:10:43,521 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:10:43,522 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:10:43,522 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:10:43,523 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:10:43,523 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:10:43,524 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:10:43,524 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 03:10:43,525 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:10:43,525 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:10:43,526 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:10:43,527 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:10:43,527 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:10:43,528 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 03:10:43,528 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:10:43,529 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:10:43,529 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 03:10:43,530 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 03:10:43,530 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9755abd7d064e34f28a7925956d70f347b4f23d37bcf6f990a1fbab92f669b34 [2023-11-19 03:10:44,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:10:44,037 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:10:44,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:10:44,042 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:10:44,043 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:10:44,044 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound50.i [2023-11-19 03:10:47,510 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:10:47,812 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:10:47,813 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound50.i [2023-11-19 03:10:47,820 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/data/42f0120d4/de6164f3091943dabaf7bf54f0b48396/FLAG0342dc58e [2023-11-19 03:10:47,839 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/data/42f0120d4/de6164f3091943dabaf7bf54f0b48396 [2023-11-19 03:10:47,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:10:47,852 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:10:47,856 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:10:47,856 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:10:47,861 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:10:47,862 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:10:47" (1/1) ... [2023-11-19 03:10:47,863 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@310f15e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:47, skipping insertion in model container [2023-11-19 03:10:47,863 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:10:47" (1/1) ... [2023-11-19 03:10:47,896 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:10:48,103 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:10:48,125 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:10:48,184 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:10:48,221 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:10:48,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:48 WrapperNode [2023-11-19 03:10:48,222 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:10:48,224 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:10:48,225 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:10:48,225 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:10:48,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:48" (1/1) ... [2023-11-19 03:10:48,257 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:48" (1/1) ... [2023-11-19 03:10:48,293 INFO L138 Inliner]: procedures = 18, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 88 [2023-11-19 03:10:48,293 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:10:48,294 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:10:48,294 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:10:48,294 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:10:48,305 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:48" (1/1) ... [2023-11-19 03:10:48,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:48" (1/1) ... [2023-11-19 03:10:48,317 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:48" (1/1) ... [2023-11-19 03:10:48,318 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:48" (1/1) ... [2023-11-19 03:10:48,338 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:48" (1/1) ... [2023-11-19 03:10:48,342 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:48" (1/1) ... [2023-11-19 03:10:48,344 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:48" (1/1) ... [2023-11-19 03:10:48,346 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:48" (1/1) ... [2023-11-19 03:10:48,349 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:10:48,350 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:10:48,350 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:10:48,351 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:10:48,351 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:10:48" (1/1) ... [2023-11-19 03:10:48,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:10:48,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:10:48,398 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:10:48,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:10:48,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:10:48,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 03:10:48,443 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 03:10:48,444 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 03:10:48,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:10:48,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:10:48,445 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 03:10:48,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 03:10:48,526 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:10:48,528 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:10:59,798 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:10:59,904 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:10:59,904 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 03:10:59,910 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:10:59 BoogieIcfgContainer [2023-11-19 03:10:59,910 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:10:59,911 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:10:59,911 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:10:59,922 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:10:59,923 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:10:59" (1/1) ... [2023-11-19 03:10:59,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:10:59,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:10:59,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2023-11-19 03:10:59,995 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2023-11-19 03:11:00,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 03:11:00,000 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:11:00,001 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:11:00,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:11:00,005 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:11:00,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 03:11:00,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:11:00,165 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:11:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:11:01,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 03:11:01,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:11:01,806 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:11:01,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-19 03:11:01,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:11:01,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2023-11-19 03:11:01,970 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2023-11-19 03:11:01,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 03:11:01,971 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:11:01,971 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:11:01,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:11:01,973 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:11:02,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-19 03:11:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:11:06,289 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:11:07,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:11:07,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:11:07,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:11:08,413 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:11:08,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-19 03:11:09,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:11:09,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 23 states and 29 transitions. [2023-11-19 03:11:09,633 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2023-11-19 03:11:09,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-19 03:11:09,635 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:11:09,635 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:11:09,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:11:09,637 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:11:09,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-19 03:11:14,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:11:14,295 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:11:15,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:11:15,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 03:11:15,891 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:11:17,792 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 03:11:17,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-19 03:11:22,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:11:22,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 34 states and 45 transitions. [2023-11-19 03:11:22,642 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2023-11-19 03:11:22,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 03:11:22,645 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:11:22,645 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:11:22,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:11:22,647 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:11:22,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-19 03:11:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:11:27,598 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:11:28,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:11:29,292 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 03:11:29,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:11:32,694 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-19 03:11:32,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-11-19 03:11:41,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:11:41,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 45 states and 61 transitions. [2023-11-19 03:11:41,849 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 61 transitions. [2023-11-19 03:11:41,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-19 03:11:41,856 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:11:41,857 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:11:41,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:11:41,858 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:11:41,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_032266fd-64b5-47c6-8902-8ce924273d38/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process