./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/Fibonacci04.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_6b42230c-b024-42ba-86d8-f1e4572a2116/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b42230c-b024-42ba-86d8-f1e4572a2116/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_6b42230c-b024-42ba-86d8-f1e4572a2116/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b42230c-b024-42ba-86d8-f1e4572a2116/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive/Fibonacci04.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b42230c-b024-42ba-86d8-f1e4572a2116/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_6b42230c-b024-42ba-86d8-f1e4572a2116/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 8d1a4b1841ad6fa39491d7c82c38d46725a7eceb7c19c007d9e026b8eedadeb5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 03:57:21,205 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 03:57:21,266 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b42230c-b024-42ba-86d8-f1e4572a2116/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 03:57:21,271 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 03:57:21,272 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 03:57:21,293 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 03:57:21,294 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 03:57:21,294 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 03:57:21,294 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 03:57:21,294 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 03:57:21,295 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 03:57:21,295 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 03:57:21,295 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 03:57:21,295 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 03:57:21,295 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 03:57:21,295 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 03:57:21,295 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 03:57:21,295 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 03:57:21,296 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 03:57:21,296 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 03:57:21,296 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 03:57:21,296 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 03:57:21,296 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 03:57:21,296 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 03:57:21,296 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 03:57:21,296 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 03:57:21,296 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 03:57:21,296 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:57:21,296 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 03:57:21,297 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 03:57:21,297 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 03:57:21,297 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 03:57:21,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 03:57:21,297 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_6b42230c-b024-42ba-86d8-f1e4572a2116/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 -> 8d1a4b1841ad6fa39491d7c82c38d46725a7eceb7c19c007d9e026b8eedadeb5 [2024-12-06 03:57:21,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 03:57:21,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 03:57:21,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 03:57:21,575 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 03:57:21,576 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 03:57:21,577 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b42230c-b024-42ba-86d8-f1e4572a2116/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/recursive/Fibonacci04.c [2024-12-06 03:57:24,329 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b42230c-b024-42ba-86d8-f1e4572a2116/bin/ukojak-verify-CZk0znPC7b/data/31f49141b/ab7e742053a94d8fbaf531d597e3abe8/FLAGfc4950f8d [2024-12-06 03:57:24,511 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 03:57:24,511 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b42230c-b024-42ba-86d8-f1e4572a2116/sv-benchmarks/c/recursive/Fibonacci04.c [2024-12-06 03:57:24,519 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b42230c-b024-42ba-86d8-f1e4572a2116/bin/ukojak-verify-CZk0znPC7b/data/31f49141b/ab7e742053a94d8fbaf531d597e3abe8/FLAGfc4950f8d [2024-12-06 03:57:24,902 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b42230c-b024-42ba-86d8-f1e4572a2116/bin/ukojak-verify-CZk0znPC7b/data/31f49141b/ab7e742053a94d8fbaf531d597e3abe8 [2024-12-06 03:57:24,904 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 03:57:24,906 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 03:57:24,907 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 03:57:24,907 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 03:57:24,910 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 03:57:24,911 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:57:24" (1/1) ... [2024-12-06 03:57:24,912 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c025daf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:57:24, skipping insertion in model container [2024-12-06 03:57:24,913 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:57:24" (1/1) ... [2024-12-06 03:57:24,924 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 03:57:25,056 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_6b42230c-b024-42ba-86d8-f1e4572a2116/sv-benchmarks/c/recursive/Fibonacci04.c[822,835] [2024-12-06 03:57:25,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:57:25,070 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 03:57:25,082 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_6b42230c-b024-42ba-86d8-f1e4572a2116/sv-benchmarks/c/recursive/Fibonacci04.c[822,835] [2024-12-06 03:57:25,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:57:25,095 INFO L204 MainTranslator]: Completed translation [2024-12-06 03:57:25,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:57:25 WrapperNode [2024-12-06 03:57:25,096 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 03:57:25,097 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 03:57:25,097 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 03:57:25,097 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 03:57:25,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:57:25" (1/1) ... [2024-12-06 03:57:25,108 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:57:25" (1/1) ... [2024-12-06 03:57:25,120 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2024-12-06 03:57:25,120 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 03:57:25,121 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 03:57:25,121 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 03:57:25,121 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 03:57:25,126 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:57:25" (1/1) ... [2024-12-06 03:57:25,126 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:57:25" (1/1) ... [2024-12-06 03:57:25,127 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:57:25" (1/1) ... [2024-12-06 03:57:25,128 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:57:25" (1/1) ... [2024-12-06 03:57:25,130 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:57:25" (1/1) ... [2024-12-06 03:57:25,131 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:57:25" (1/1) ... [2024-12-06 03:57:25,133 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:57:25" (1/1) ... [2024-12-06 03:57:25,133 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:57:25" (1/1) ... [2024-12-06 03:57:25,134 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:57:25" (1/1) ... [2024-12-06 03:57:25,135 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 03:57:25,136 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 03:57:25,136 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 03:57:25,136 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 03:57:25,137 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:57:25" (1/1) ... [2024-12-06 03:57:25,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:57:25,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b42230c-b024-42ba-86d8-f1e4572a2116/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 03:57:25,171 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b42230c-b024-42ba-86d8-f1e4572a2116/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 03:57:25,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b42230c-b024-42ba-86d8-f1e4572a2116/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 03:57:25,198 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2024-12-06 03:57:25,198 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2024-12-06 03:57:25,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 03:57:25,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 03:57:25,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 03:57:25,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 03:57:25,259 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 03:57:25,261 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 03:57:25,374 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-12-06 03:57:25,374 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 03:57:25,394 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 03:57:25,394 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 03:57:25,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:57:25 BoogieIcfgContainer [2024-12-06 03:57:25,395 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 03:57:25,395 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 03:57:25,395 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 03:57:25,405 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 03:57:25,405 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:57:25" (1/1) ... [2024-12-06 03:57:25,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 03:57:25,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:57:25,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 18 states and 23 transitions. [2024-12-06 03:57:25,461 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2024-12-06 03:57:25,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 03:57:25,466 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:57:25,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:57:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:57:25,691 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 03:57:25,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:57:25,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2024-12-06 03:57:25,802 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2024-12-06 03:57:25,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 03:57:25,803 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:57:25,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:57:25,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:57:25,905 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 03:57:26,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:57:26,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2024-12-06 03:57:26,083 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2024-12-06 03:57:26,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-12-06 03:57:26,085 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:57:26,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:57:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:57:26,220 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-06 03:57:26,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:57:26,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 36 transitions. [2024-12-06 03:57:26,379 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2024-12-06 03:57:26,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-12-06 03:57:26,379 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:57:26,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:57:26,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:57:26,497 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-06 03:57:26,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:57:26,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 33 states and 51 transitions. [2024-12-06 03:57:26,784 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2024-12-06 03:57:26,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-12-06 03:57:26,786 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:57:26,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:57:26,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:57:27,061 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 23 proven. 8 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-06 03:57:27,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:57:27,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 36 states and 58 transitions. [2024-12-06 03:57:27,618 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 58 transitions. [2024-12-06 03:57:27,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-12-06 03:57:27,619 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:57:27,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:57:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:57:27,756 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-12-06 03:57:28,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:57:28,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 43 states and 76 transitions. [2024-12-06 03:57:28,165 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 76 transitions. [2024-12-06 03:57:28,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-12-06 03:57:28,167 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:57:28,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:57:28,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:57:28,414 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 47 proven. 28 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-12-06 03:57:28,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:57:28,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 43 states and 75 transitions. [2024-12-06 03:57:28,833 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 75 transitions. [2024-12-06 03:57:28,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-12-06 03:57:28,836 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:57:28,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:57:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:57:29,018 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 17 proven. 88 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-06 03:57:29,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:57:29,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 50 states and 95 transitions. [2024-12-06 03:57:29,546 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 95 transitions. [2024-12-06 03:57:29,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-12-06 03:57:29,550 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:57:29,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:57:29,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:57:29,990 INFO L134 CoverageAnalysis]: Checked inductivity of 1403 backedges. 260 proven. 83 refuted. 0 times theorem prover too weak. 1060 trivial. 0 not checked. [2024-12-06 03:57:30,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:57:30,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 52 states and 79 transitions. [2024-12-06 03:57:30,977 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 79 transitions. [2024-12-06 03:57:30,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-06 03:57:30,979 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:57:30,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:57:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:57:31,235 INFO L134 CoverageAnalysis]: Checked inductivity of 747 backedges. 145 proven. 154 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2024-12-06 03:57:31,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:57:31,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 54 states and 77 transitions. [2024-12-06 03:57:31,657 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 77 transitions. [2024-12-06 03:57:31,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-06 03:57:31,659 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:57:31,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:57:31,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:57:31,681 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 03:57:31,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:57:31,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:57:31,776 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 03:57:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:57:31,838 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 11 iterations. [2024-12-06 03:57:31,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 03:57:31 ImpRootNode [2024-12-06 03:57:31,880 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 03:57:31,881 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 03:57:31,881 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 03:57:31,881 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 03:57:31,881 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:57:25" (3/4) ... [2024-12-06 03:57:31,882 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 03:57:31,936 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 60. [2024-12-06 03:57:32,013 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b42230c-b024-42ba-86d8-f1e4572a2116/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 03:57:32,013 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b42230c-b024-42ba-86d8-f1e4572a2116/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 03:57:32,014 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 03:57:32,015 INFO L158 Benchmark]: Toolchain (without parser) took 7108.71ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 118.1MB in the beginning and 198.6MB in the end (delta: -80.6MB). Peak memory consumption was 98.4MB. Max. memory is 16.1GB. [2024-12-06 03:57:32,015 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:57:32,015 INFO L158 Benchmark]: CACSL2BoogieTranslator took 189.57ms. Allocated memory is still 142.6MB. Free memory was 118.1MB in the beginning and 107.2MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:57:32,016 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.56ms. Allocated memory is still 142.6MB. Free memory was 107.2MB in the beginning and 106.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:57:32,016 INFO L158 Benchmark]: Boogie Preprocessor took 14.40ms. Allocated memory is still 142.6MB. Free memory was 106.2MB in the beginning and 105.6MB in the end (delta: 640.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:57:32,016 INFO L158 Benchmark]: RCFGBuilder took 258.99ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 95.1MB in the end (delta: 10.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 03:57:32,017 INFO L158 Benchmark]: CodeCheck took 6484.75ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 95.1MB in the beginning and 205.5MB in the end (delta: -110.4MB). Peak memory consumption was 73.2MB. Max. memory is 16.1GB. [2024-12-06 03:57:32,018 INFO L158 Benchmark]: Witness Printer took 133.11ms. Allocated memory is still 327.2MB. Free memory was 205.5MB in the beginning and 198.6MB in the end (delta: 6.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:57:32,020 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, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.4s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 696 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 338 mSDsluCounter, 778 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 532 mSDsCounter, 510 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1618 IncrementalHoareTripleChecker+Invalid, 2128 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 510 mSolverCounterUnsat, 246 mSDtfsCounter, 1618 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3332 GetRequests, 3095 SyntacticMatches, 123 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6161 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 647 NumberOfCodeBlocks, 647 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 531 ConstructedInterpolants, 0 QuantifiedInterpolants, 997 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 2178/2572 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: 38]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L30] int x = __VERIFIER_nondet_int(); [L31] COND FALSE !(x > 46) VAL [x=5] [L34] CALL, EXPR fibonacci(x) VAL [\old(n)=5] [L19] COND FALSE !(n < 1) VAL [\old(n)=5, n=5] [L21] COND FALSE !(n == 1) VAL [\old(n)=5, n=5] [L24] CALL, EXPR fibonacci(n-1) VAL [\old(n)=4] [L19] COND FALSE !(n < 1) VAL [\old(n)=4, n=4] [L21] COND FALSE !(n == 1) VAL [\old(n)=4, n=4] [L24] CALL, EXPR fibonacci(n-1) VAL [\old(n)=3] [L19] COND FALSE !(n < 1) VAL [\old(n)=3, n=3] [L21] COND FALSE !(n == 1) VAL [\old(n)=3, n=3] [L24] CALL, EXPR fibonacci(n-1) VAL [\old(n)=2] [L19] COND FALSE !(n < 1) VAL [\old(n)=2, n=2] [L21] COND FALSE !(n == 1) VAL [\old(n)=2, n=2] [L24] CALL, EXPR fibonacci(n-1) VAL [\old(n)=1] [L19] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L21] COND TRUE n == 1 [L22] return 1; VAL [\old(n)=1, \result=1] [L24] RET, EXPR fibonacci(n-1) VAL [\old(n)=2, n=2] [L24] CALL, EXPR fibonacci(n-2) VAL [\old(n)=0] [L19] COND TRUE n < 1 [L20] return 0; VAL [\old(n)=0, \result=0] [L24] RET, EXPR fibonacci(n-2) VAL [\old(n)=2, n=2] [L24] return fibonacci(n-1) + fibonacci(n-2); [L24] RET, EXPR fibonacci(n-1) VAL [\old(n)=3, n=3] [L24] CALL, EXPR fibonacci(n-2) VAL [\old(n)=1] [L19] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L21] COND TRUE n == 1 [L22] return 1; VAL [\old(n)=1, \result=1] [L24] RET, EXPR fibonacci(n-2) VAL [\old(n)=3, n=3] [L24] return fibonacci(n-1) + fibonacci(n-2); [L24] RET, EXPR fibonacci(n-1) VAL [\old(n)=4, n=4] [L24] CALL, EXPR fibonacci(n-2) VAL [\old(n)=2] [L19] COND FALSE !(n < 1) VAL [\old(n)=2, n=2] [L21] COND FALSE !(n == 1) VAL [\old(n)=2, n=2] [L24] CALL, EXPR fibonacci(n-1) VAL [\old(n)=1] [L19] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L21] COND TRUE n == 1 [L22] return 1; VAL [\old(n)=1, \result=1] [L24] RET, EXPR fibonacci(n-1) VAL [\old(n)=2, n=2] [L24] CALL, EXPR fibonacci(n-2) VAL [\old(n)=0] [L19] COND TRUE n < 1 [L20] return 0; VAL [\old(n)=0, \result=0] [L24] RET, EXPR fibonacci(n-2) VAL [\old(n)=2, n=2] [L24] return fibonacci(n-1) + fibonacci(n-2); [L24] RET, EXPR fibonacci(n-2) VAL [\old(n)=4, n=4] [L24] return fibonacci(n-1) + fibonacci(n-2); [L24] RET, EXPR fibonacci(n-1) VAL [\old(n)=5, n=5] [L24] CALL, EXPR fibonacci(n-2) VAL [\old(n)=3] [L19] COND FALSE !(n < 1) VAL [\old(n)=3, n=3] [L21] COND FALSE !(n == 1) VAL [\old(n)=3, n=3] [L24] CALL, EXPR fibonacci(n-1) VAL [\old(n)=2] [L19] COND FALSE !(n < 1) VAL [\old(n)=2, n=2] [L21] COND FALSE !(n == 1) VAL [\old(n)=2, n=2] [L24] CALL, EXPR fibonacci(n-1) VAL [\old(n)=1] [L19] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L21] COND TRUE n == 1 [L22] return 1; VAL [\old(n)=1, \result=1] [L24] RET, EXPR fibonacci(n-1) VAL [\old(n)=2, n=2] [L24] CALL, EXPR fibonacci(n-2) VAL [\old(n)=0] [L19] COND TRUE n < 1 [L20] return 0; VAL [\old(n)=0, \result=0] [L24] RET, EXPR fibonacci(n-2) VAL [\old(n)=2, n=2] [L24] return fibonacci(n-1) + fibonacci(n-2); [L24] RET, EXPR fibonacci(n-1) VAL [\old(n)=3, n=3] [L24] CALL, EXPR fibonacci(n-2) VAL [\old(n)=1] [L19] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L21] COND TRUE n == 1 [L22] return 1; VAL [\old(n)=1, \result=1] [L24] RET, EXPR fibonacci(n-2) VAL [\old(n)=3, n=3] [L24] return fibonacci(n-1) + fibonacci(n-2); [L24] RET, EXPR fibonacci(n-2) VAL [\old(n)=5, n=5] [L24] return fibonacci(n-1) + fibonacci(n-2); [L34] RET, EXPR fibonacci(x) VAL [x=5] [L34] int result = fibonacci(x); [L35] COND FALSE !(x != 5 || result == 3) [L38] reach_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 142.6MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 189.57ms. Allocated memory is still 142.6MB. Free memory was 118.1MB in the beginning and 107.2MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.56ms. Allocated memory is still 142.6MB. Free memory was 107.2MB in the beginning and 106.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.40ms. Allocated memory is still 142.6MB. Free memory was 106.2MB in the beginning and 105.6MB in the end (delta: 640.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 258.99ms. Allocated memory is still 142.6MB. Free memory was 105.6MB in the beginning and 95.1MB in the end (delta: 10.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 6484.75ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 95.1MB in the beginning and 205.5MB in the end (delta: -110.4MB). Peak memory consumption was 73.2MB. Max. memory is 16.1GB. * Witness Printer took 133.11ms. Allocated memory is still 327.2MB. Free memory was 205.5MB in the beginning and 198.6MB in the end (delta: 6.9MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 03:57:32,041 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b42230c-b024-42ba-86d8-f1e4572a2116/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