./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/sum_15x0-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93cda12f-32a1-406d-b35a-9de7cdc61085/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93cda12f-32a1-406d-b35a-9de7cdc61085/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93cda12f-32a1-406d-b35a-9de7cdc61085/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93cda12f-32a1-406d-b35a-9de7cdc61085/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_15x0-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93cda12f-32a1-406d-b35a-9de7cdc61085/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93cda12f-32a1-406d-b35a-9de7cdc61085/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 610248c6c4c4e7168ba971ed5fa38cec025658aa482465da336c99be91c3aa5c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 03:40:00,911 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 03:40:00,963 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93cda12f-32a1-406d-b35a-9de7cdc61085/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 03:40:00,967 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 03:40:00,968 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 03:40:00,986 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 03:40:00,987 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 03:40:00,987 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 03:40:00,988 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 03:40:00,988 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 03:40:00,988 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 03:40:00,988 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 03:40:00,988 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 03:40:00,988 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 03:40:00,989 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 03:40:00,989 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 03:40:00,989 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 03:40:00,989 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 03:40:00,989 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 03:40:00,989 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 03:40:00,989 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 03:40:00,989 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 03:40:00,989 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 03:40:00,989 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 03:40:00,989 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 03:40:00,990 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 03:40:00,990 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 03:40:00,990 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:40:00,990 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 03:40:00,990 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 03:40:00,990 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 03:40:00,990 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 03:40:00,990 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 03:40:00,990 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_93cda12f-32a1-406d-b35a-9de7cdc61085/bin/ukojak-verify-CZk0znPC7b Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 610248c6c4c4e7168ba971ed5fa38cec025658aa482465da336c99be91c3aa5c [2024-12-06 03:40:01,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 03:40:01,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 03:40:01,200 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 03:40:01,202 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 03:40:01,202 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 03:40:01,203 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93cda12f-32a1-406d-b35a-9de7cdc61085/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/recursive-simple/sum_15x0-2.c [2024-12-06 03:40:03,904 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93cda12f-32a1-406d-b35a-9de7cdc61085/bin/ukojak-verify-CZk0znPC7b/data/c445df536/d4bebcdfffac4d299ea05f64b9296cae/FLAGa4bdbb156 [2024-12-06 03:40:04,089 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 03:40:04,090 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93cda12f-32a1-406d-b35a-9de7cdc61085/sv-benchmarks/c/recursive-simple/sum_15x0-2.c [2024-12-06 03:40:04,097 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93cda12f-32a1-406d-b35a-9de7cdc61085/bin/ukojak-verify-CZk0znPC7b/data/c445df536/d4bebcdfffac4d299ea05f64b9296cae/FLAGa4bdbb156 [2024-12-06 03:40:04,460 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93cda12f-32a1-406d-b35a-9de7cdc61085/bin/ukojak-verify-CZk0znPC7b/data/c445df536/d4bebcdfffac4d299ea05f64b9296cae [2024-12-06 03:40:04,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 03:40:04,464 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 03:40:04,465 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 03:40:04,465 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 03:40:04,469 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 03:40:04,470 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:40:04" (1/1) ... [2024-12-06 03:40:04,471 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d6c6532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:40:04, skipping insertion in model container [2024-12-06 03:40:04,471 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:40:04" (1/1) ... [2024-12-06 03:40:04,481 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 03:40:04,575 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93cda12f-32a1-406d-b35a-9de7cdc61085/sv-benchmarks/c/recursive-simple/sum_15x0-2.c[481,494] [2024-12-06 03:40:04,578 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:40:04,587 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 03:40:04,599 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93cda12f-32a1-406d-b35a-9de7cdc61085/sv-benchmarks/c/recursive-simple/sum_15x0-2.c[481,494] [2024-12-06 03:40:04,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:40:04,612 INFO L204 MainTranslator]: Completed translation [2024-12-06 03:40:04,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:40:04 WrapperNode [2024-12-06 03:40:04,613 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 03:40:04,614 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 03:40:04,614 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 03:40:04,614 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 03:40:04,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:40:04" (1/1) ... [2024-12-06 03:40:04,623 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:40:04" (1/1) ... [2024-12-06 03:40:04,633 INFO L138 Inliner]: procedures = 12, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2024-12-06 03:40:04,633 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 03:40:04,633 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 03:40:04,633 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 03:40:04,633 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 03:40:04,637 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:40:04" (1/1) ... [2024-12-06 03:40:04,638 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:40:04" (1/1) ... [2024-12-06 03:40:04,638 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:40:04" (1/1) ... [2024-12-06 03:40:04,638 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:40:04" (1/1) ... [2024-12-06 03:40:04,640 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:40:04" (1/1) ... [2024-12-06 03:40:04,640 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:40:04" (1/1) ... [2024-12-06 03:40:04,641 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:40:04" (1/1) ... [2024-12-06 03:40:04,642 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:40:04" (1/1) ... [2024-12-06 03:40:04,642 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:40:04" (1/1) ... [2024-12-06 03:40:04,643 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 03:40:04,643 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 03:40:04,644 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 03:40:04,644 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 03:40:04,644 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:40:04" (1/1) ... [2024-12-06 03:40:04,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:40:04,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93cda12f-32a1-406d-b35a-9de7cdc61085/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 03:40:04,671 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93cda12f-32a1-406d-b35a-9de7cdc61085/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 03:40:04,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93cda12f-32a1-406d-b35a-9de7cdc61085/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 03:40:04,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 03:40:04,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 03:40:04,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 03:40:04,701 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2024-12-06 03:40:04,701 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2024-12-06 03:40:04,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 03:40:04,752 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 03:40:04,754 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 03:40:04,831 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-12-06 03:40:04,832 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 03:40:04,849 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 03:40:04,849 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 03:40:04,849 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:40:04 BoogieIcfgContainer [2024-12-06 03:40:04,849 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 03:40:04,850 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 03:40:04,850 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 03:40:04,857 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 03:40:04,857 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:40:04" (1/1) ... [2024-12-06 03:40:04,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 03:40:04,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:40:04,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2024-12-06 03:40:04,903 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-12-06 03:40:04,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 03:40:04,907 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:40:04,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:40:04,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:40:05,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 03:40:05,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:40:05,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 18 transitions. [2024-12-06 03:40:05,169 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-12-06 03:40:05,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-06 03:40:05,169 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:40:05,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:40:05,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:40:05,281 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 03:40:05,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:40:05,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 23 transitions. [2024-12-06 03:40:05,392 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2024-12-06 03:40:05,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-12-06 03:40:05,392 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:40:05,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:40:05,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:40:05,514 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-06 03:40:05,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:40:05,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 22 states and 29 transitions. [2024-12-06 03:40:05,608 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2024-12-06 03:40:05,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-12-06 03:40:05,609 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:40:05,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:40:05,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:40:05,733 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-06 03:40:05,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:40:05,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 25 states and 36 transitions. [2024-12-06 03:40:05,838 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 36 transitions. [2024-12-06 03:40:05,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-12-06 03:40:05,839 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:40:05,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:40:05,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:40:05,956 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-12-06 03:40:06,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:40:06,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 28 states and 44 transitions. [2024-12-06 03:40:06,084 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 44 transitions. [2024-12-06 03:40:06,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-12-06 03:40:06,085 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:40:06,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:40:06,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:40:06,223 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-06 03:40:06,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:40:06,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 31 states and 53 transitions. [2024-12-06 03:40:06,358 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 53 transitions. [2024-12-06 03:40:06,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-12-06 03:40:06,359 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:40:06,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:40:06,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:40:06,535 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-12-06 03:40:06,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:40:06,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 34 states and 63 transitions. [2024-12-06 03:40:06,679 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 63 transitions. [2024-12-06 03:40:06,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-12-06 03:40:06,681 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:40:06,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:40:06,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:40:06,869 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-12-06 03:40:07,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:40:07,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 37 states and 74 transitions. [2024-12-06 03:40:07,030 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 74 transitions. [2024-12-06 03:40:07,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-12-06 03:40:07,031 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:40:07,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:40:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:40:07,221 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-12-06 03:40:07,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:40:07,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 40 states and 86 transitions. [2024-12-06 03:40:07,386 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 86 transitions. [2024-12-06 03:40:07,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-12-06 03:40:07,388 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:40:07,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:40:07,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:40:07,585 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-12-06 03:40:07,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:40:07,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 43 states and 99 transitions. [2024-12-06 03:40:07,781 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 99 transitions. [2024-12-06 03:40:07,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-06 03:40:07,783 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:40:07,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:40:07,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:40:08,031 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2024-12-06 03:40:08,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:40:08,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 46 states and 113 transitions. [2024-12-06 03:40:08,211 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 113 transitions. [2024-12-06 03:40:08,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-12-06 03:40:08,213 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:40:08,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:40:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:40:08,447 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-12-06 03:40:08,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:40:08,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 49 states and 128 transitions. [2024-12-06 03:40:08,652 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 128 transitions. [2024-12-06 03:40:08,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-06 03:40:08,653 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:40:08,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:40:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:40:08,907 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2024-12-06 03:40:09,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:40:09,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 52 states and 144 transitions. [2024-12-06 03:40:09,108 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 144 transitions. [2024-12-06 03:40:09,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-06 03:40:09,109 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:40:09,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:40:09,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:40:09,370 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2024-12-06 03:40:09,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:40:09,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 55 states and 161 transitions. [2024-12-06 03:40:09,587 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 161 transitions. [2024-12-06 03:40:09,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-06 03:40:09,588 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:40:09,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:40:09,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:40:09,860 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2024-12-06 03:40:10,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:40:10,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 58 states and 179 transitions. [2024-12-06 03:40:10,076 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 179 transitions. [2024-12-06 03:40:10,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-06 03:40:10,077 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:40:10,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:40:10,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:40:10,106 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 03:40:10,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:40:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:40:10,214 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 03:40:10,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:40:10,280 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 16 iterations. [2024-12-06 03:40:10,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 03:40:10 ImpRootNode [2024-12-06 03:40:10,316 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 03:40:10,317 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 03:40:10,317 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 03:40:10,317 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 03:40:10,318 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:40:04" (3/4) ... [2024-12-06 03:40:10,319 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 03:40:10,359 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 50. [2024-12-06 03:40:10,419 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93cda12f-32a1-406d-b35a-9de7cdc61085/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 03:40:10,419 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93cda12f-32a1-406d-b35a-9de7cdc61085/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 03:40:10,419 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 03:40:10,420 INFO L158 Benchmark]: Toolchain (without parser) took 5956.26ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 93.2MB in the beginning and 66.0MB in the end (delta: 27.2MB). Peak memory consumption was 54.7MB. Max. memory is 16.1GB. [2024-12-06 03:40:10,420 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 71.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:40:10,421 INFO L158 Benchmark]: CACSL2BoogieTranslator took 148.21ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 82.6MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:40:10,421 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.08ms. Allocated memory is still 117.4MB. Free memory was 82.6MB in the beginning and 81.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:40:10,421 INFO L158 Benchmark]: Boogie Preprocessor took 9.84ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 80.8MB in the end (delta: 587.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:40:10,421 INFO L158 Benchmark]: RCFGBuilder took 205.86ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 71.2MB in the end (delta: 9.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 03:40:10,422 INFO L158 Benchmark]: CodeCheck took 5466.60ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 71.2MB in the beginning and 72.4MB in the end (delta: -1.2MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2024-12-06 03:40:10,422 INFO L158 Benchmark]: Witness Printer took 102.26ms. Allocated memory is still 142.6MB. Free memory was 72.4MB in the beginning and 66.0MB in the end (delta: 6.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:40:10,424 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 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.4s, OverallIterations: 16, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 934 SdHoareTripleChecker+Valid, 5.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 492 mSDsluCounter, 1122 SdHoareTripleChecker+Invalid, 4.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 914 mSDsCounter, 467 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3807 IncrementalHoareTripleChecker+Invalid, 4274 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 467 mSolverCounterUnsat, 208 mSDtfsCounter, 3807 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10038 GetRequests, 9438 SyntacticMatches, 538 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1238 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 864 NumberOfCodeBlocks, 864 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 750 ConstructedInterpolants, 0 QuantifiedInterpolants, 1920 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 1 PerfectInterpolantSequences, 1575/3150 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, ConComCheckerStatistics: No data available - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L14] int a = 15; [L15] int b = 0; VAL [a=15, b=0] [L16] CALL, EXPR sum(a, b) VAL [\old(m)=0, \old(n)=15] [L6] COND FALSE !(n <= 0) VAL [\old(m)=0, \old(n)=15, m=0, n=15] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=1, \old(n)=14] [L6] COND FALSE !(n <= 0) VAL [\old(m)=1, \old(n)=14, m=1, n=14] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=2, \old(n)=13] [L6] COND FALSE !(n <= 0) VAL [\old(m)=2, \old(n)=13, m=2, n=13] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=3, \old(n)=12] [L6] COND FALSE !(n <= 0) VAL [\old(m)=3, \old(n)=12, m=3, n=12] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=4, \old(n)=11] [L6] COND FALSE !(n <= 0) VAL [\old(m)=4, \old(n)=11, m=4, n=11] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=5, \old(n)=10] [L6] COND FALSE !(n <= 0) VAL [\old(m)=5, \old(n)=10, m=5, n=10] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=6, \old(n)=9] [L6] COND FALSE !(n <= 0) VAL [\old(m)=6, \old(n)=9, m=6, n=9] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=7, \old(n)=8] [L6] COND FALSE !(n <= 0) VAL [\old(m)=7, \old(n)=8, m=7, n=8] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=8, \old(n)=7] [L6] COND FALSE !(n <= 0) VAL [\old(m)=8, \old(n)=7, m=8, n=7] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=9, \old(n)=6] [L6] COND FALSE !(n <= 0) VAL [\old(m)=9, \old(n)=6, m=9, n=6] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=10, \old(n)=5] [L6] COND FALSE !(n <= 0) VAL [\old(m)=10, \old(n)=5, m=10, n=5] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=11, \old(n)=4] [L6] COND FALSE !(n <= 0) VAL [\old(m)=11, \old(n)=4, m=11, n=4] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=12, \old(n)=3] [L6] COND FALSE !(n <= 0) VAL [\old(m)=12, \old(n)=3, m=12, n=3] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=13, \old(n)=2] [L6] COND FALSE !(n <= 0) VAL [\old(m)=13, \old(n)=2, m=13, n=2] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=14, \old(n)=1] [L6] COND FALSE !(n <= 0) VAL [\old(m)=14, \old(n)=1, m=14, n=1] [L9] CALL, EXPR sum(n - 1, m + 1) VAL [\old(m)=15, \old(n)=0] [L6] COND TRUE n <= 0 [L7] return m + n; VAL [\old(m)=15, \old(n)=0, \result=15] [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=14, \old(n)=1, m=14, n=1] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=13, \old(n)=2, m=13, n=2] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=12, \old(n)=3, m=12, n=3] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=11, \old(n)=4, m=11, n=4] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=10, \old(n)=5, m=10, n=5] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=9, \old(n)=6, m=9, n=6] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=8, \old(n)=7, m=8, n=7] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=7, \old(n)=8, m=7, n=8] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=6, \old(n)=9, m=6, n=9] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=5, \old(n)=10, m=5, n=10] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=4, \old(n)=11, m=4, n=11] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=3, \old(n)=12, m=3, n=12] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=2, \old(n)=13, m=2, n=13] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=1, \old(n)=14, m=1, n=14] [L9] return sum(n - 1, m + 1); [L9] RET, EXPR sum(n - 1, m + 1) VAL [\old(m)=0, \old(n)=15, m=0, n=15] [L9] return sum(n - 1, m + 1); [L16] RET, EXPR sum(a, b) VAL [a=15, b=0] [L16] int result = sum(a, b); [L17] COND TRUE result == a + b [L18] reach_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 71.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 148.21ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 82.6MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.08ms. Allocated memory is still 117.4MB. Free memory was 82.6MB in the beginning and 81.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 9.84ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 80.8MB in the end (delta: 587.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 205.86ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 71.2MB in the end (delta: 9.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 5466.60ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 71.2MB in the beginning and 72.4MB in the end (delta: -1.2MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * Witness Printer took 102.26ms. Allocated memory is still 142.6MB. Free memory was 72.4MB in the beginning and 66.0MB in the end (delta: 6.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 03:40:10,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_93cda12f-32a1-406d-b35a-9de7cdc61085/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE