./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound1.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_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/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_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/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_d9f4b047-3cd8-41fb-969b-f7e69a402099/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 f7c2c0f04a8ec4985dc8297aaa6f2bb0534ef908d102354702fc27f17d7b5004 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 22:45:41,155 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 22:45:41,223 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-11-13 22:45:41,229 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 22:45:41,229 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 22:45:41,267 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 22:45:41,268 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 22:45:41,268 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 22:45:41,269 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 22:45:41,269 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 22:45:41,269 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 22:45:41,269 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 22:45:41,269 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 22:45:41,269 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 22:45:41,269 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 22:45:41,269 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 22:45:41,269 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 22:45:41,271 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 22:45:41,271 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 22:45:41,271 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 22:45:41,271 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 22:45:41,271 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 22:45:41,271 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 22:45:41,271 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 22:45:41,272 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 22:45:41,272 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 22:45:41,272 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 22:45:41,272 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 22:45:41,272 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 22:45:41,272 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:45:41,272 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 22:45:41,272 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 22:45:41,272 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 22:45:41,273 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 22:45:41,274 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 22:45:41,274 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_d9f4b047-3cd8-41fb-969b-f7e69a402099/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 -> f7c2c0f04a8ec4985dc8297aaa6f2bb0534ef908d102354702fc27f17d7b5004 [2024-11-13 22:45:41,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 22:45:41,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 22:45:41,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 22:45:41,564 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 22:45:41,565 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 22:45:41,566 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound1.i Unable to find full path for "g++" [2024-11-13 22:45:43,466 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 22:45:43,760 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 22:45:43,764 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound1.i [2024-11-13 22:45:43,774 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/data/2c7b802b9/04f981bcb9544de8b205b28c2a3ac083/FLAGd5ee7b9a5 [2024-11-13 22:45:43,805 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/data/2c7b802b9/04f981bcb9544de8b205b28c2a3ac083 [2024-11-13 22:45:43,808 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 22:45:43,811 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 22:45:43,814 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 22:45:43,814 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 22:45:43,820 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 22:45:43,821 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:45:43" (1/1) ... [2024-11-13 22:45:43,822 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b2522fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:45:43, skipping insertion in model container [2024-11-13 22:45:43,822 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:45:43" (1/1) ... [2024-11-13 22:45:43,845 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 22:45:44,050 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$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-13 22:45:44,061 INFO L158 Benchmark]: Toolchain (without parser) took 246.51ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 83.3MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 22:45:44,061 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 83.9MB. Free memory is still 40.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:45:44,062 INFO L158 Benchmark]: CACSL2BoogieTranslator took 242.70ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 83.3MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 22:45:44,063 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 83.9MB. Free memory is still 40.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 242.70ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 83.3MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:629) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/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_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/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_d9f4b047-3cd8-41fb-969b-f7e69a402099/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 f7c2c0f04a8ec4985dc8297aaa6f2bb0534ef908d102354702fc27f17d7b5004 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 22:45:46,733 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 22:45:46,828 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-32bit-Kojak_Bitvector.epf [2024-11-13 22:45:46,874 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 22:45:46,875 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 22:45:46,875 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 22:45:46,875 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 22:45:46,875 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 22:45:46,878 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 22:45:46,878 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 22:45:46,879 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 22:45:46,879 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 22:45:46,879 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 22:45:46,879 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 22:45:46,880 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 22:45:46,880 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 22:45:46,880 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 22:45:46,880 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 22:45:46,880 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 22:45:46,880 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 22:45:46,880 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 22:45:46,880 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 22:45:46,881 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 22:45:46,881 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 22:45:46,881 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 22:45:46,881 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 22:45:46,881 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 22:45:46,881 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 22:45:46,881 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 22:45:46,881 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-13 22:45:46,881 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 22:45:46,882 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:45:46,882 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 22:45:46,882 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 22:45:46,882 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 22:45:46,882 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-13 22:45:46,882 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 22:45:46,882 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-13 22:45:46,882 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_d9f4b047-3cd8-41fb-969b-f7e69a402099/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 -> f7c2c0f04a8ec4985dc8297aaa6f2bb0534ef908d102354702fc27f17d7b5004 [2024-11-13 22:45:47,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 22:45:47,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 22:45:47,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 22:45:47,261 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 22:45:47,262 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 22:45:47,263 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound1.i Unable to find full path for "g++" [2024-11-13 22:45:49,523 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 22:45:49,782 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 22:45:49,787 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/sv-benchmarks/c/nla-digbench-scaling/knuth_unwindbound1.i [2024-11-13 22:45:49,813 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/data/d4ac691f6/818762a1679e47ebb4d650753869fb8b/FLAG3fc188934 [2024-11-13 22:45:49,862 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/data/d4ac691f6/818762a1679e47ebb4d650753869fb8b [2024-11-13 22:45:49,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 22:45:49,870 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 22:45:49,874 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 22:45:49,874 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 22:45:49,880 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 22:45:49,883 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:45:49" (1/1) ... [2024-11-13 22:45:49,884 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2291bf26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:45:49, skipping insertion in model container [2024-11-13 22:45:49,884 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 10:45:49" (1/1) ... [2024-11-13 22:45:49,914 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 22:45:50,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:45:50,266 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 22:45:50,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 22:45:50,361 INFO L204 MainTranslator]: Completed translation [2024-11-13 22:45:50,362 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:45:50 WrapperNode [2024-11-13 22:45:50,362 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 22:45:50,364 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 22:45:50,365 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 22:45:50,365 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 22:45:50,373 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:45:50" (1/1) ... [2024-11-13 22:45:50,387 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:45:50" (1/1) ... [2024-11-13 22:45:50,433 INFO L138 Inliner]: procedures = 18, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 86 [2024-11-13 22:45:50,433 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 22:45:50,434 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 22:45:50,438 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 22:45:50,438 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 22:45:50,449 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:45:50" (1/1) ... [2024-11-13 22:45:50,450 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:45:50" (1/1) ... [2024-11-13 22:45:50,454 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:45:50" (1/1) ... [2024-11-13 22:45:50,455 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:45:50" (1/1) ... [2024-11-13 22:45:50,465 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:45:50" (1/1) ... [2024-11-13 22:45:50,470 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:45:50" (1/1) ... [2024-11-13 22:45:50,472 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:45:50" (1/1) ... [2024-11-13 22:45:50,473 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:45:50" (1/1) ... [2024-11-13 22:45:50,476 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 22:45:50,477 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 22:45:50,478 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 22:45:50,478 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 22:45:50,479 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 10:45:50" (1/1) ... [2024-11-13 22:45:50,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 22:45:50,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 22:45:50,531 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 22:45:50,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 22:45:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 22:45:50,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-13 22:45:50,578 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 22:45:50,578 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 22:45:50,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 22:45:50,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 22:45:50,578 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 22:45:50,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 22:45:50,702 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 22:45:50,705 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 22:46:01,764 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-11-13 22:46:01,764 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 22:46:01,891 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 22:46:01,892 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 22:46:01,892 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:46:01 BoogieIcfgContainer [2024-11-13 22:46:01,892 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 22:46:01,893 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 22:46:01,893 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 22:46:01,904 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 22:46:01,904 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:46:01" (1/1) ... [2024-11-13 22:46:01,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 22:46:01,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:46:01,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2024-11-13 22:46:01,970 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2024-11-13 22:46:01,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-13 22:46:01,976 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:46:01,977 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 22:46:01,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 22:46:01,983 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 22:46:01,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-13 22:46:02,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:46:02,160 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 22:46:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:46:03,354 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 22:46:03,357 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 22:46:03,376 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 22:46:03,378 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2024-11-13 22:46:03,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-13 22:46:03,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:46:03,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2024-11-13 22:46:03,495 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2024-11-13 22:46:03,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 22:46:03,496 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:46:03,496 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 22:46:03,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 22:46:03,498 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 22:46:03,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-13 22:46:08,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:46:08,131 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 22:46:08,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:46:09,047 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 22:46:09,048 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 22:46:09,806 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 22:46:09,836 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-13 22:46:11,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:46:11,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 23 states and 29 transitions. [2024-11-13 22:46:11,029 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2024-11-13 22:46:11,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-13 22:46:11,029 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:46:11,029 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 22:46:11,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 22:46:11,032 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 22:46:11,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-13 22:46:16,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:46:16,569 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 22:46:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:46:17,687 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 22:46:17,690 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 22:46:19,352 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 22:46:19,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-13 22:46:24,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:46:24,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 34 states and 45 transitions. [2024-11-13 22:46:24,386 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2024-11-13 22:46:24,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-13 22:46:24,388 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:46:24,388 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 22:46:24,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 22:46:24,391 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 22:46:24,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-13 22:46:29,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:46:29,975 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 22:46:30,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:46:31,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 22:46:31,144 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 22:46:34,172 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 22:46:34,213 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2024-11-13 22:46:42,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:46:42,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 45 states and 61 transitions. [2024-11-13 22:46:42,708 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 61 transitions. [2024-11-13 22:46:42,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-13 22:46:42,711 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 22:46:42,711 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-13 22:46:42,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/cvc4 [2024-11-13 22:46:42,713 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-13 22:46:42,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-13 22:46:48,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:46:48,810 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-13 22:46:49,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 22:46:50,269 INFO L255 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 22:46:50,272 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 22:46:51,948 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 88 proven. 4 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-13 22:46:51,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-13 22:46:54,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 22:46:54,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2024-11-13 22:46:54,516 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2024-11-13 22:46:54,516 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 22:46:54,516 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2024-11-13 22:46:54,532 INFO L729 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2024-11-13 22:46:58,404 INFO L77 FloydHoareUtils]: At program point L33(line 33) the Hoare annotation is: (= (_ bv0 32) ~counter~0) [2024-11-13 22:46:58,405 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2024-11-13 22:46:58,405 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-13 22:46:58,405 INFO L77 FloydHoareUtils]: At program point L44(lines 40 70) the Hoare annotation is: (= (_ bv1 32) ~counter~0) [2024-11-13 22:46:58,405 INFO L77 FloydHoareUtils]: At program point L42(line 42) the Hoare annotation is: (= (_ bv1 32) ~counter~0) [2024-11-13 22:46:58,405 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-13 22:46:58,405 INFO L77 FloydHoareUtils]: At program point L40-1(line 40) the Hoare annotation is: (not (and (not (= |ULTIMATE.start_main_#t~post4#1| (_ bv1 32))) (not (= |ULTIMATE.start_main_#t~post4#1| (_ bv0 32))))) [2024-11-13 22:46:58,405 INFO L77 FloydHoareUtils]: At program point L40-2(line 40) the Hoare annotation is: (not (and (not (= |ULTIMATE.start_main_#t~post4#1| (_ bv1 32))) (not (= |ULTIMATE.start_main_#t~post4#1| (_ bv0 32))))) [2024-11-13 22:46:58,405 INFO L77 FloydHoareUtils]: At program point L40-3(lines 40 70) the Hoare annotation is: (or (= (_ bv1 32) ~counter~0) (and (= |ULTIMATE.start_main_#t~post4#1| (_ bv1 32)) (= (_ bv2 32) ~counter~0))) [2024-11-13 22:46:58,405 INFO L77 FloydHoareUtils]: At program point L40-5(lines 40 70) the Hoare annotation is: true [2024-11-13 22:46:58,405 INFO L77 FloydHoareUtils]: At program point L32(line 32) the Hoare annotation is: (= (_ bv0 32) ~counter~0) [2024-11-13 22:46:58,405 INFO L77 FloydHoareUtils]: At program point L32-1(line 32) the Hoare annotation is: (= (_ bv0 32) ~counter~0) [2024-11-13 22:46:58,406 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2024-11-13 22:46:58,406 INFO L77 FloydHoareUtils]: At program point L57-2(lines 40 70) the Hoare annotation is: (not (and (not (= (_ bv0 32) ~counter~0)) (not (= (_ bv1 32) ~counter~0)))) [2024-11-13 22:46:58,406 INFO L77 FloydHoareUtils]: At program point L43(line 43) the Hoare annotation is: (= (_ bv1 32) ~counter~0) [2024-11-13 22:46:58,406 INFO L77 FloydHoareUtils]: At program point L41(line 41) the Hoare annotation is: (= (_ bv1 32) ~counter~0) [2024-11-13 22:46:58,406 INFO L77 FloydHoareUtils]: At program point L41-1(line 41) the Hoare annotation is: (= (_ bv1 32) ~counter~0) [2024-11-13 22:46:58,406 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 15 17) the Hoare annotation is: (= (_ bv0 32) ~counter~0) [2024-11-13 22:46:58,406 INFO L77 FloydHoareUtils]: At program point assume_abort_if_notEXIT(lines 15 17) the Hoare annotation is: (= (_ bv0 32) ~counter~0) [2024-11-13 22:46:58,406 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertEXIT(lines 18 24) the Hoare annotation is: (= (_ bv1 32) ~counter~0) [2024-11-13 22:46:58,406 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 18 24) the Hoare annotation is: (= (_ bv1 32) ~counter~0) [2024-11-13 22:46:58,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 10:46:58 ImpRootNode [2024-11-13 22:46:58,424 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 22:46:58,424 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 22:46:58,424 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 22:46:58,425 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 22:46:58,425 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 10:46:01" (3/4) ... [2024-11-13 22:46:58,428 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 22:46:58,431 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-13 22:46:58,431 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-13 22:46:58,435 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2024-11-13 22:46:58,435 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-13 22:46:58,436 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 22:46:58,436 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 22:46:58,436 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 22:46:58,551 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 22:46:58,552 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/witness.yml [2024-11-13 22:46:58,552 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 22:46:58,553 INFO L158 Benchmark]: Toolchain (without parser) took 68682.88ms. Allocated memory is still 117.4MB. Free memory was 93.3MB in the beginning and 64.3MB in the end (delta: 29.0MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. [2024-11-13 22:46:58,553 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 117.4MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:46:58,554 INFO L158 Benchmark]: CACSL2BoogieTranslator took 489.64ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 80.2MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 22:46:58,555 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.11ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 78.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:46:58,556 INFO L158 Benchmark]: Boogie Preprocessor took 42.63ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 77.6MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 22:46:58,557 INFO L158 Benchmark]: RCFGBuilder took 11415.14ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 50.4MB in the end (delta: 27.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 22:46:58,557 INFO L158 Benchmark]: CodeCheck took 56530.40ms. Allocated memory is still 117.4MB. Free memory was 50.4MB in the beginning and 69.9MB in the end (delta: -19.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:46:58,558 INFO L158 Benchmark]: Witness Printer took 127.73ms. Allocated memory is still 117.4MB. Free memory was 69.0MB in the beginning and 64.3MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 22:46:58,561 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 52.6s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 262 SdHoareTripleChecker+Valid, 18.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 150 mSDsluCounter, 221 SdHoareTripleChecker+Invalid, 18.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 58 mSDsCounter, 130 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 361 IncrementalHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 130 mSolverCounterUnsat, 163 mSDtfsCounter, 361 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1126 GetRequests, 1100 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 11.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 4.4s SatisfiabilityAnalysisTime, 8.5s InterpolantComputationTime, 156 NumberOfCodeBlocks, 156 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 151 ConstructedInterpolants, 0 QuantifiedInterpolants, 369 SizeOfPredicates, 12 NumberOfNonLiveVariables, 410 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 210/264 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: !((0 != counter) && (1 != counter)) - ProcedureContractResult [Line: 15]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Requires: (0 == counter) Ensures: ((0 == counter) && (counter == \old(counter))) - ProcedureContractResult [Line: 18]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (1 == counter) Ensures: ((1 == counter) && (counter == \old(counter))) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 117.4MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 489.64ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 80.2MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.11ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 78.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.63ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 77.6MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 11415.14ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 50.4MB in the end (delta: 27.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * CodeCheck took 56530.40ms. Allocated memory is still 117.4MB. Free memory was 50.4MB in the beginning and 69.9MB in the end (delta: -19.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 127.73ms. Allocated memory is still 117.4MB. Free memory was 69.0MB in the beginning and 64.3MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-13 22:46:58,780 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process [2024-11-13 22:46:58,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f4b047-3cd8-41fb-969b-f7e69a402099/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE