./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/Addition02.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_49da226c-883d-4cfd-9a0b-a2799460fbff/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49da226c-883d-4cfd-9a0b-a2799460fbff/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_49da226c-883d-4cfd-9a0b-a2799460fbff/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49da226c-883d-4cfd-9a0b-a2799460fbff/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive/Addition02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49da226c-883d-4cfd-9a0b-a2799460fbff/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_49da226c-883d-4cfd-9a0b-a2799460fbff/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 12b38fa2e3d5fdbfa2e75fd7db8c6635c3a88ba468adc8c100051dd60d30a551 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 06:10:19,307 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 06:10:19,360 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49da226c-883d-4cfd-9a0b-a2799460fbff/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 06:10:19,364 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 06:10:19,364 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 06:10:19,383 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 06:10:19,384 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 06:10:19,384 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 06:10:19,385 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 06:10:19,385 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 06:10:19,385 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 06:10:19,385 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 06:10:19,385 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 06:10:19,386 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 06:10:19,386 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 06:10:19,386 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 06:10:19,386 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 06:10:19,386 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 06:10:19,386 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 06:10:19,386 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 06:10:19,386 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 06:10:19,386 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 06:10:19,386 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 06:10:19,386 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 06:10:19,386 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 06:10:19,386 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 06:10:19,387 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 06:10:19,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 06:10:19,387 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 06:10:19,387 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 06:10:19,387 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 06:10:19,387 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 06:10:19,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 06:10:19,387 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_49da226c-883d-4cfd-9a0b-a2799460fbff/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 -> 12b38fa2e3d5fdbfa2e75fd7db8c6635c3a88ba468adc8c100051dd60d30a551 [2024-12-06 06:10:19,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 06:10:19,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 06:10:19,598 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 06:10:19,599 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 06:10:19,600 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 06:10:19,601 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49da226c-883d-4cfd-9a0b-a2799460fbff/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/recursive/Addition02.c [2024-12-06 06:10:22,205 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49da226c-883d-4cfd-9a0b-a2799460fbff/bin/ukojak-verify-CZk0znPC7b/data/bccccd6bc/b9c60e7450954a4cbf0243d4065b71e7/FLAGaf57586c1 [2024-12-06 06:10:22,400 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 06:10:22,401 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49da226c-883d-4cfd-9a0b-a2799460fbff/sv-benchmarks/c/recursive/Addition02.c [2024-12-06 06:10:22,407 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49da226c-883d-4cfd-9a0b-a2799460fbff/bin/ukojak-verify-CZk0znPC7b/data/bccccd6bc/b9c60e7450954a4cbf0243d4065b71e7/FLAGaf57586c1 [2024-12-06 06:10:22,768 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49da226c-883d-4cfd-9a0b-a2799460fbff/bin/ukojak-verify-CZk0znPC7b/data/bccccd6bc/b9c60e7450954a4cbf0243d4065b71e7 [2024-12-06 06:10:22,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 06:10:22,771 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 06:10:22,771 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 06:10:22,772 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 06:10:22,775 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 06:10:22,775 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:10:22" (1/1) ... [2024-12-06 06:10:22,776 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@345d5bcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:10:22, skipping insertion in model container [2024-12-06 06:10:22,776 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 06:10:22" (1/1) ... [2024-12-06 06:10:22,785 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 06:10:22,914 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_49da226c-883d-4cfd-9a0b-a2799460fbff/sv-benchmarks/c/recursive/Addition02.c[1124,1137] [2024-12-06 06:10:22,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 06:10:22,925 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 06:10:22,935 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_49da226c-883d-4cfd-9a0b-a2799460fbff/sv-benchmarks/c/recursive/Addition02.c[1124,1137] [2024-12-06 06:10:22,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 06:10:22,946 INFO L204 MainTranslator]: Completed translation [2024-12-06 06:10:22,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:10:22 WrapperNode [2024-12-06 06:10:22,946 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 06:10:22,947 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 06:10:22,947 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 06:10:22,947 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 06:10:22,952 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:10:22" (1/1) ... [2024-12-06 06:10:22,956 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:10:22" (1/1) ... [2024-12-06 06:10:22,967 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 33 [2024-12-06 06:10:22,967 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 06:10:22,968 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 06:10:22,968 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 06:10:22,968 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 06:10:22,972 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:10:22" (1/1) ... [2024-12-06 06:10:22,972 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:10:22" (1/1) ... [2024-12-06 06:10:22,973 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:10:22" (1/1) ... [2024-12-06 06:10:22,973 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:10:22" (1/1) ... [2024-12-06 06:10:22,975 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:10:22" (1/1) ... [2024-12-06 06:10:22,976 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:10:22" (1/1) ... [2024-12-06 06:10:22,978 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:10:22" (1/1) ... [2024-12-06 06:10:22,979 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:10:22" (1/1) ... [2024-12-06 06:10:22,979 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:10:22" (1/1) ... [2024-12-06 06:10:22,981 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 06:10:22,981 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 06:10:22,982 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 06:10:22,982 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 06:10:22,983 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 06:10:22" (1/1) ... [2024-12-06 06:10:22,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 06:10:22,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49da226c-883d-4cfd-9a0b-a2799460fbff/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 06:10:23,006 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49da226c-883d-4cfd-9a0b-a2799460fbff/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 06:10:23,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49da226c-883d-4cfd-9a0b-a2799460fbff/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 06:10:23,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 06:10:23,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 06:10:23,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 06:10:23,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 06:10:23,028 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2024-12-06 06:10:23,028 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2024-12-06 06:10:23,079 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 06:10:23,081 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 06:10:23,176 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-12-06 06:10:23,176 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 06:10:23,190 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 06:10:23,190 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 06:10:23,190 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:10:23 BoogieIcfgContainer [2024-12-06 06:10:23,190 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 06:10:23,191 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 06:10:23,191 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 06:10:23,198 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 06:10:23,198 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:10:23" (1/1) ... [2024-12-06 06:10:23,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 06:10:23,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:10:23,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2024-12-06 06:10:23,245 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2024-12-06 06:10:23,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 06:10:23,249 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:10:23,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:10:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:10:23,560 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 06:10:23,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:10:23,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 24 states and 35 transitions. [2024-12-06 06:10:23,725 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2024-12-06 06:10:23,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-06 06:10:23,726 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:10:23,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:10:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 06:10:23,798 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 06:10:23,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 06:10:23,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 24 states and 33 transitions. [2024-12-06 06:10:23,874 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2024-12-06 06:10:23,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-12-06 06:10:23,875 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 06:10:23,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 06:10:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 06:10:23,889 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 06:10:23,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 06:10:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 06:10:23,937 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 06:10:23,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 06:10:23,957 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2024-12-06 06:10:23,981 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 06:10:23 ImpRootNode [2024-12-06 06:10:23,981 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 06:10:23,981 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 06:10:23,981 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 06:10:23,982 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 06:10:23,982 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 06:10:23" (3/4) ... [2024-12-06 06:10:23,983 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 06:10:24,018 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 11. [2024-12-06 06:10:24,064 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49da226c-883d-4cfd-9a0b-a2799460fbff/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 06:10:24,065 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49da226c-883d-4cfd-9a0b-a2799460fbff/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 06:10:24,065 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 06:10:24,066 INFO L158 Benchmark]: Toolchain (without parser) took 1294.78ms. Allocated memory is still 142.6MB. Free memory was 118.9MB in the beginning and 102.9MB in the end (delta: 16.0MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2024-12-06 06:10:24,066 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 142.6MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 06:10:24,066 INFO L158 Benchmark]: CACSL2BoogieTranslator took 175.34ms. Allocated memory is still 142.6MB. Free memory was 118.6MB in the beginning and 107.9MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 06:10:24,066 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.05ms. Allocated memory is still 142.6MB. Free memory was 107.9MB in the beginning and 106.9MB in the end (delta: 920.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 06:10:24,067 INFO L158 Benchmark]: Boogie Preprocessor took 13.17ms. Allocated memory is still 142.6MB. Free memory was 106.9MB in the beginning and 106.3MB in the end (delta: 687.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 06:10:24,067 INFO L158 Benchmark]: RCFGBuilder took 209.05ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 95.1MB in the end (delta: 10.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 06:10:24,067 INFO L158 Benchmark]: CodeCheck took 789.90ms. Allocated memory is still 142.6MB. Free memory was 95.1MB in the beginning and 107.2MB in the end (delta: -12.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 06:10:24,067 INFO L158 Benchmark]: Witness Printer took 83.40ms. Allocated memory is still 142.6MB. Free memory was 107.2MB in the beginning and 102.9MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 06:10:24,069 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, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 76 IncrementalHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 28 mSDtfsCounter, 76 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 209 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 65 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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: 45]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L29] int m = __VERIFIER_nondet_int(); [L30] COND FALSE !(m < 0 || m > 1073741823) [L35] int n = __VERIFIER_nondet_int(); [L36] COND FALSE !(n < 0 || n > 1073741823) VAL [m=0, n=1] [L41] CALL, EXPR addition(m,n) VAL [\old(m)=0, \old(n)=1] [L16] COND FALSE !(n == 0) VAL [\old(m)=0, \old(n)=1, m=0, n=1] [L19] COND TRUE n > 0 VAL [\old(m)=0, \old(n)=1, m=0, n=1] [L20] CALL, EXPR addition(m+1, n-1) VAL [\old(m)=1, \old(n)=0] [L16] COND TRUE n == 0 [L17] return m; VAL [\old(m)=1, \old(n)=0, \result=1] [L20] RET, EXPR addition(m+1, n-1) VAL [\old(m)=0, \old(n)=1, m=0, n=1] [L20] return addition(m+1, n-1); [L41] RET, EXPR addition(m,n) VAL [m=0, n=1] [L41] int result = addition(m,n); [L42] COND FALSE !(result == m - n) [L45] reach_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 142.6MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 175.34ms. Allocated memory is still 142.6MB. Free memory was 118.6MB in the beginning and 107.9MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.05ms. Allocated memory is still 142.6MB. Free memory was 107.9MB in the beginning and 106.9MB in the end (delta: 920.8kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.17ms. Allocated memory is still 142.6MB. Free memory was 106.9MB in the beginning and 106.3MB in the end (delta: 687.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 209.05ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 95.1MB in the end (delta: 10.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 789.90ms. Allocated memory is still 142.6MB. Free memory was 95.1MB in the beginning and 107.2MB in the end (delta: -12.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 83.40ms. Allocated memory is still 142.6MB. Free memory was 107.2MB in the beginning and 102.9MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 06:10:24,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49da226c-883d-4cfd-9a0b-a2799460fbff/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