./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 953dc8095830260ae835d79f90b96c794426fcd9911aa994e4cb8f2d3bfb6995 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 22:55:07,938 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 22:55:08,010 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-11-13 22:55:08,019 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 22:55:08,019 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 22:55:08,049 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 22:55:08,051 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 22:55:08,051 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 22:55:08,052 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 22:55:08,052 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 22:55:08,053 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 22:55:08,053 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 22:55:08,054 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 22:55:08,054 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 22:55:08,054 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 22:55:08,054 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 22:55:08,054 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 22:55:08,054 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 22:55:08,054 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 22:55:08,054 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 22:55:08,054 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 22:55:08,054 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 22:55:08,054 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 22:55:08,054 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 22:55:08,055 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 22:55:08,055 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 22:55:08,056 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 22:55:08,056 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 22:55:08,056 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 22:55:08,056 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:55:08,056 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 22:55:08,056 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 22:55:08,056 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 22:55:08,056 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 22:55:08,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 22:55:08,058 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_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 953dc8095830260ae835d79f90b96c794426fcd9911aa994e4cb8f2d3bfb6995 [2024-11-13 22:55:08,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 22:55:08,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 22:55:08,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 22:55:08,398 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 22:55:08,399 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 22:55:08,400 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i Unable to find full path for "g++" [2024-11-13 22:55:10,335 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 22:55:10,579 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 22:55:10,582 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i [2024-11-13 22:55:10,594 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/data/e4a985954/377d8e84b1f843b8809620a0b33a3450/FLAG152857a3c [2024-11-13 22:55:10,616 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/data/e4a985954/377d8e84b1f843b8809620a0b33a3450 [2024-11-13 22:55:10,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 22:55:10,620 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 22:55:10,623 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 22:55:10,623 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 22:55:10,628 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 22:55:10,630 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:55:10" (1/1) ... [2024-11-13 22:55:10,632 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17f955f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:55:10, skipping insertion in model container [2024-11-13 22:55:10,633 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:55:10" (1/1) ... [2024-11-13 22:55:10,654 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 22:55:10,858 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:1611) 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:792) 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:1516) 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:1167) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1150) 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:388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1638) 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:3515) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2508) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:642) 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-13 22:55:10,869 INFO L158 Benchmark]: Toolchain (without parser) took 246.01ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 83.6MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 22:55:10,872 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 74.2MB in the end (delta: 195.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:55:10,873 INFO L158 Benchmark]: CACSL2BoogieTranslator took 242.19ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 83.6MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 22:55:10,874 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 74.2MB in the end (delta: 195.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 242.19ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 83.6MB in the end (delta: 9.0MB). 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_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 953dc8095830260ae835d79f90b96c794426fcd9911aa994e4cb8f2d3bfb6995 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 22:55:13,347 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 22:55:13,463 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf [2024-11-13 22:55:13,521 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 22:55:13,524 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 22:55:13,526 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 22:55:13,527 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 22:55:13,527 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 22:55:13,528 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 22:55:13,528 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 22:55:13,529 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 22:55:13,529 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 22:55:13,529 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 22:55:13,533 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 22:55:13,533 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 22:55:13,533 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 22:55:13,533 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 22:55:13,533 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 22:55:13,533 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 22:55:13,533 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 22:55:13,533 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 22:55:13,533 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 22:55:13,533 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 22:55:13,533 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 22:55:13,533 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 22:55:13,534 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 22:55:13,534 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 22:55:13,534 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 22:55:13,534 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 22:55:13,534 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 22:55:13,534 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 22:55:13,534 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:55:13,535 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 22:55:13,535 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 22:55:13,535 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 22:55:13,535 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 22:55:13,535 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 22:55:13,535 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 22:55:13,535 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_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 953dc8095830260ae835d79f90b96c794426fcd9911aa994e4cb8f2d3bfb6995 [2024-11-13 22:55:13,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 22:55:13,885 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 22:55:13,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 22:55:13,889 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 22:55:13,890 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 22:55:13,891 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i Unable to find full path for "g++" [2024-11-13 22:55:15,849 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 22:55:16,113 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 22:55:16,114 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound20.i [2024-11-13 22:55:16,127 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/data/7df1dda27/2efe0b0bdeeb40a6ba7ab1397c10e8bc/FLAG83d062f9b [2024-11-13 22:55:16,156 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/data/7df1dda27/2efe0b0bdeeb40a6ba7ab1397c10e8bc [2024-11-13 22:55:16,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 22:55:16,164 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 22:55:16,166 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 22:55:16,166 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 22:55:16,191 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 22:55:16,196 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:55:16" (1/1) ... [2024-11-13 22:55:16,199 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b886cb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:55:16, skipping insertion in model container [2024-11-13 22:55:16,200 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:55:16" (1/1) ... [2024-11-13 22:55:16,233 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 22:55:16,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:55:16,480 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 22:55:16,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:55:16,528 INFO L204 MainTranslator]: Completed translation [2024-11-13 22:55:16,529 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:55:16 WrapperNode [2024-11-13 22:55:16,529 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 22:55:16,531 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 22:55:16,531 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 22:55:16,531 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 22:55:16,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:55:16" (1/1) ... [2024-11-13 22:55:16,547 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:55:16" (1/1) ... [2024-11-13 22:55:16,566 INFO L138 Inliner]: procedures = 18, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 86 [2024-11-13 22:55:16,566 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 22:55:16,567 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 22:55:16,567 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 22:55:16,567 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 22:55:16,575 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:55:16" (1/1) ... [2024-11-13 22:55:16,575 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:55:16" (1/1) ... [2024-11-13 22:55:16,578 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:55:16" (1/1) ... [2024-11-13 22:55:16,578 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:55:16" (1/1) ... [2024-11-13 22:55:16,587 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:55:16" (1/1) ... [2024-11-13 22:55:16,590 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:55:16" (1/1) ... [2024-11-13 22:55:16,592 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:55:16" (1/1) ... [2024-11-13 22:55:16,593 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:55:16" (1/1) ... [2024-11-13 22:55:16,596 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 22:55:16,596 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 22:55:16,597 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 22:55:16,597 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 22:55:16,598 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:55:16" (1/1) ... [2024-11-13 22:55:16,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:55:16,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 22:55:16,632 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 22:55:16,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 22:55:16,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 22:55:16,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 22:55:16,662 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 22:55:16,662 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 22:55:16,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 22:55:16,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 22:55:16,662 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 22:55:16,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 22:55:16,731 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 22:55:16,733 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 22:55:27,732 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-13 22:55:27,732 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 22:55:27,862 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 22:55:27,862 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 22:55:27,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:55:27 BoogieIcfgContainer [2024-11-13 22:55:27,862 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 22:55:27,863 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 22:55:27,863 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 22:55:27,876 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 22:55:27,876 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:55:27" (1/1) ... [2024-11-13 22:55:27,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 22:55:27,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:55:27,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2024-11-13 22:55:27,934 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2024-11-13 22:55:27,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-13 22:55:27,939 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:55:27,939 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 22:55:27,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 22:55:27,943 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 22:55:27,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 22:55:28,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:55:28,090 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 22:55:28,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:55:29,073 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 22:55:29,077 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 22:55:29,100 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 22:55:29,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 22:55:29,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:55:29,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2024-11-13 22:55:29,239 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2024-11-13 22:55:29,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 22:55:29,240 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:55:29,240 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 22:55:29,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 22:55:29,242 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 22:55:29,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-13 22:55:33,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:55:33,432 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 22:55:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:55:34,280 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 22:55:34,282 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 22:55:34,966 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 22:55:35,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2024-11-13 22:55:36,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:55:36,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 23 states and 29 transitions. [2024-11-13 22:55:36,110 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2024-11-13 22:55:36,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-13 22:55:36,111 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:55:36,111 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 22:55:36,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 22:55:36,114 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 22:55:36,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-13 22:55:40,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:55:40,825 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 22:55:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:55:41,775 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 22:55:41,777 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 22:55:43,486 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 22:55:43,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-13 22:55:47,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:55:47,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 34 states and 45 transitions. [2024-11-13 22:55:47,334 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2024-11-13 22:55:47,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-13 22:55:47,336 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:55:47,336 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 22:55:47,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 22:55:47,338 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 22:55:47,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-13 22:55:52,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:55:52,183 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 22:55:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:55:53,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 22:55:53,224 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 22:55:56,185 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-13 22:55:56,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-13 22:56:04,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:56:04,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 45 states and 61 transitions. [2024-11-13 22:56:04,536 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 61 transitions. [2024-11-13 22:56:04,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-13 22:56:04,538 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:56:04,538 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 22:56:04,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 22:56:04,540 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 22:56:04,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-13 22:56:09,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:56:09,509 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 22:56:10,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:56:10,634 INFO L255 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 22:56:10,636 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 22:56:15,148 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-13 22:56:15,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-13 22:56:24,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:56:24,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 56 states and 77 transitions. [2024-11-13 22:56:24,830 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2024-11-13 22:56:24,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-13 22:56:24,832 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:56:24,832 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 22:56:24,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 22:56:24,837 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 22:56:24,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-13 22:56:30,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:56:30,048 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 22:56:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:56:31,252 INFO L255 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 22:56:31,255 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 22:56:37,226 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 258 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-13 22:56:37,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-13 22:56:49,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:56:49,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 67 states and 93 transitions. [2024-11-13 22:56:49,331 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 93 transitions. [2024-11-13 22:56:49,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-13 22:56:49,333 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:56:49,333 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 22:56:49,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 22:56:49,335 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 22:56:49,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-13 22:56:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:56:54,743 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 22:56:55,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:56:56,105 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 22:56:56,110 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 22:57:03,982 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 0 proven. 425 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-13 22:57:04,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-11-13 22:57:18,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:57:18,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 78 states and 109 transitions. [2024-11-13 22:57:18,681 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 109 transitions. [2024-11-13 22:57:18,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-13 22:57:18,683 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:57:18,683 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 22:57:18,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 22:57:18,687 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 22:57:18,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-13 22:57:24,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:57:24,304 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 22:57:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:57:25,711 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 22:57:25,714 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 22:57:35,550 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 0 proven. 633 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-13 22:57:35,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2024-11-13 22:57:54,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:57:54,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 89 states and 125 transitions. [2024-11-13 22:57:54,556 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 125 transitions. [2024-11-13 22:57:54,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-13 22:57:54,559 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:57:54,559 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 22:57:54,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 22:57:54,565 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 22:57:54,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-13 22:58:00,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:58:00,760 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 22:58:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:58:02,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-13 22:58:02,359 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 22:58:14,950 INFO L134 CoverageAnalysis]: Checked inductivity of 968 backedges. 0 proven. 882 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-13 22:58:15,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2024-11-13 22:58:37,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:58:37,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 100 states and 141 transitions. [2024-11-13 22:58:37,427 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 141 transitions. [2024-11-13 22:58:37,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-13 22:58:37,430 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:58:37,431 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 22:58:37,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 22:58:37,434 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 22:58:37,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-13 22:58:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:58:44,666 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 22:58:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:58:46,161 INFO L255 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-13 22:58:46,165 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 22:58:59,931 INFO L134 CoverageAnalysis]: Checked inductivity of 1270 backedges. 0 proven. 1172 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-13 22:58:59,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-11-13 22:59:23,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:59:23,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 111 states and 157 transitions. [2024-11-13 22:59:23,985 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 157 transitions. [2024-11-13 22:59:23,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-13 22:59:23,992 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:59:23,992 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 22:59:23,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 22:59:23,994 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 22:59:23,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2024-11-13 22:59:30,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:59:30,222 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 22:59:31,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:59:31,911 INFO L255 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-13 22:59:31,916 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 22:59:48,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1613 backedges. 0 proven. 1503 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-11-13 22:59:48,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2024-11-13 23:00:15,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:00:15,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 122 states and 173 transitions. [2024-11-13 23:00:15,259 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 173 transitions. [2024-11-13 23:00:15,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-13 23:00:15,263 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:00:15,263 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:00:15,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 23:00:15,266 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:00:15,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2024-11-13 23:00:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:00:22,767 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 23:00:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:00:24,866 INFO L255 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-13 23:00:24,870 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:00:44,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1997 backedges. 0 proven. 1875 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-13 23:00:44,819 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2024-11-13 23:01:14,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:01:14,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 133 states and 189 transitions. [2024-11-13 23:01:14,708 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 189 transitions. [2024-11-13 23:01:14,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-13 23:01:14,715 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:01:14,716 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:01:14,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 23:01:14,719 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:01:14,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-13 23:01:21,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:01:21,825 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 23:01:23,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:01:23,610 INFO L255 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-13 23:01:23,615 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:01:45,605 INFO L134 CoverageAnalysis]: Checked inductivity of 2422 backedges. 0 proven. 2288 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-13 23:01:45,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2024-11-13 23:02:21,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:02:21,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 144 states and 205 transitions. [2024-11-13 23:02:21,205 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 205 transitions. [2024-11-13 23:02:21,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-11-13 23:02:21,210 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:02:21,210 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:02:21,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 23:02:21,212 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:02:21,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2024-11-13 23:02:29,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:02:29,105 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 23:02:30,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:02:30,979 INFO L255 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-13 23:02:30,983 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:02:55,928 INFO L134 CoverageAnalysis]: Checked inductivity of 2888 backedges. 0 proven. 2742 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-13 23:02:55,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2024-11-13 23:03:34,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:03:34,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 155 states and 221 transitions. [2024-11-13 23:03:34,502 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 221 transitions. [2024-11-13 23:03:34,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-13 23:03:34,504 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:03:34,504 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:03:34,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 23:03:34,509 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:03:34,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2024-11-13 23:03:41,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:03:41,391 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 23:03:43,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:03:43,811 INFO L255 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-13 23:03:43,814 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:04:12,081 INFO L134 CoverageAnalysis]: Checked inductivity of 3395 backedges. 0 proven. 3237 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2024-11-13 23:04:12,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2024-11-13 23:04:54,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:04:54,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 166 states and 237 transitions. [2024-11-13 23:04:54,835 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 237 transitions. [2024-11-13 23:04:54,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-13 23:04:54,837 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:04:54,837 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:04:54,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 23:04:54,840 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:04:54,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-13 23:05:01,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:05:01,927 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 23:05:03,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:05:03,895 INFO L255 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-13 23:05:03,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:05:36,276 INFO L134 CoverageAnalysis]: Checked inductivity of 3943 backedges. 0 proven. 3773 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2024-11-13 23:05:36,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2024-11-13 23:06:26,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:06:26,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 177 states and 253 transitions. [2024-11-13 23:06:26,016 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 253 transitions. [2024-11-13 23:06:26,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2024-11-13 23:06:26,019 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:06:26,019 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:06:26,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 23:06:26,023 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:06:26,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2024-11-13 23:06:33,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:06:33,591 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 23:06:35,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:06:35,919 INFO L255 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-13 23:06:35,925 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:07:12,052 INFO L134 CoverageAnalysis]: Checked inductivity of 4532 backedges. 0 proven. 4350 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2024-11-13 23:07:12,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2024-11-13 23:08:09,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:08:09,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 188 states and 269 transitions. [2024-11-13 23:08:09,789 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 269 transitions. [2024-11-13 23:08:09,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-11-13 23:08:09,792 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:08:09,792 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:08:09,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 23:08:09,794 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:08:09,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-11-13 23:08:18,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:08:18,843 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 23:08:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:08:21,412 INFO L255 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-13 23:08:21,418 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:09:04,746 INFO L134 CoverageAnalysis]: Checked inductivity of 5162 backedges. 0 proven. 4968 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-11-13 23:09:04,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2024-11-13 23:10:09,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:10:09,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 199 states and 285 transitions. [2024-11-13 23:10:09,778 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 285 transitions. [2024-11-13 23:10:09,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2024-11-13 23:10:09,780 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:10:09,781 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 23:10:09,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 23:10:09,784 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 23:10:09,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccf01b6a-2233-4251-8f3f-7e5fdd6840f0/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2024-11-13 23:10:18,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:10:18,670 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 23:10:20,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:10:21,171 INFO L255 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-13 23:10:21,175 INFO L278 TraceCheckSpWp]: Computing forward predicates...