./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_2calls_5-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfb27b7a-ba48-45e2-9b60-8465a641a838/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfb27b7a-ba48-45e2-9b60-8465a641a838/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfb27b7a-ba48-45e2-9b60-8465a641a838/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfb27b7a-ba48-45e2-9b60-8465a641a838/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_2calls_5-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfb27b7a-ba48-45e2-9b60-8465a641a838/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfb27b7a-ba48-45e2-9b60-8465a641a838/bin/ukojak-verify-EEHR8qb7sm --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 eb57cc67b4a5d1052a722feccb00a81098424cf4bc0bbd7bfe756405ab740d43 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 20:19:30,464 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 20:19:30,560 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfb27b7a-ba48-45e2-9b60-8465a641a838/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 20:19:30,565 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 20:19:30,565 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 20:19:30,586 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 20:19:30,587 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 20:19:30,588 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 20:19:30,588 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 20:19:30,588 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 20:19:30,589 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 20:19:30,589 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 20:19:30,589 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 20:19:30,589 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 20:19:30,589 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 20:19:30,589 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 20:19:30,589 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 20:19:30,590 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 20:19:30,590 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 20:19:30,590 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 20:19:30,590 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 20:19:30,590 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 20:19:30,590 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 20:19:30,591 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 20:19:30,591 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 20:19:30,591 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 20:19:30,591 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 20:19:30,591 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:19:30,591 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 20:19:30,592 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 20:19:30,592 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 20:19:30,592 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 20:19:30,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 20:19:30,592 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_bfb27b7a-ba48-45e2-9b60-8465a641a838/bin/ukojak-verify-EEHR8qb7sm Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 -> eb57cc67b4a5d1052a722feccb00a81098424cf4bc0bbd7bfe756405ab740d43 [2024-11-13 20:19:30,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 20:19:30,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 20:19:30,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 20:19:30,907 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 20:19:30,907 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 20:19:30,909 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfb27b7a-ba48-45e2-9b60-8465a641a838/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/recursive-simple/fibo_2calls_5-2.c Unable to find full path for "g++" [2024-11-13 20:19:32,778 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 20:19:33,040 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 20:19:33,041 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfb27b7a-ba48-45e2-9b60-8465a641a838/sv-benchmarks/c/recursive-simple/fibo_2calls_5-2.c [2024-11-13 20:19:33,051 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfb27b7a-ba48-45e2-9b60-8465a641a838/bin/ukojak-verify-EEHR8qb7sm/data/4c51de161/af7ebd32cc64417f94dd91f97722b9f0/FLAG8dde77923 [2024-11-13 20:19:33,333 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfb27b7a-ba48-45e2-9b60-8465a641a838/bin/ukojak-verify-EEHR8qb7sm/data/4c51de161/af7ebd32cc64417f94dd91f97722b9f0 [2024-11-13 20:19:33,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 20:19:33,337 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 20:19:33,339 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 20:19:33,339 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 20:19:33,344 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 20:19:33,345 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:19:33" (1/1) ... [2024-11-13 20:19:33,346 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ec8e30e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:33, skipping insertion in model container [2024-11-13 20:19:33,346 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:19:33" (1/1) ... [2024-11-13 20:19:33,360 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 20:19:33,549 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_bfb27b7a-ba48-45e2-9b60-8465a641a838/sv-benchmarks/c/recursive-simple/fibo_2calls_5-2.c[946,959] [2024-11-13 20:19:33,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:19:33,562 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 20:19:33,578 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_bfb27b7a-ba48-45e2-9b60-8465a641a838/sv-benchmarks/c/recursive-simple/fibo_2calls_5-2.c[946,959] [2024-11-13 20:19:33,578 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:19:33,590 INFO L204 MainTranslator]: Completed translation [2024-11-13 20:19:33,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:33 WrapperNode [2024-11-13 20:19:33,591 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 20:19:33,592 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 20:19:33,592 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 20:19:33,592 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 20:19:33,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:33" (1/1) ... [2024-11-13 20:19:33,603 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:33" (1/1) ... [2024-11-13 20:19:33,615 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2024-11-13 20:19:33,615 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 20:19:33,615 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 20:19:33,616 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 20:19:33,616 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 20:19:33,620 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:33" (1/1) ... [2024-11-13 20:19:33,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:33" (1/1) ... [2024-11-13 20:19:33,621 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:33" (1/1) ... [2024-11-13 20:19:33,622 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:33" (1/1) ... [2024-11-13 20:19:33,624 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:33" (1/1) ... [2024-11-13 20:19:33,626 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:33" (1/1) ... [2024-11-13 20:19:33,627 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:33" (1/1) ... [2024-11-13 20:19:33,628 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:33" (1/1) ... [2024-11-13 20:19:33,629 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 20:19:33,630 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 20:19:33,630 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 20:19:33,631 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 20:19:33,632 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:19:33" (1/1) ... [2024-11-13 20:19:33,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:19:33,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfb27b7a-ba48-45e2-9b60-8465a641a838/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 20:19:33,662 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfb27b7a-ba48-45e2-9b60-8465a641a838/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 20:19:33,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfb27b7a-ba48-45e2-9b60-8465a641a838/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 20:19:33,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 20:19:33,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 20:19:33,693 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2024-11-13 20:19:33,693 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2024-11-13 20:19:33,693 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2024-11-13 20:19:33,693 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2024-11-13 20:19:33,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 20:19:33,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 20:19:33,764 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 20:19:33,766 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 20:19:33,895 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-13 20:19:33,895 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 20:19:33,916 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 20:19:33,917 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 20:19:33,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:19:33 BoogieIcfgContainer [2024-11-13 20:19:33,917 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 20:19:33,918 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 20:19:33,918 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 20:19:33,928 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 20:19:33,928 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:19:33" (1/1) ... [2024-11-13 20:19:33,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 20:19:33,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:19:33,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 26 states and 33 transitions. [2024-11-13 20:19:33,987 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2024-11-13 20:19:33,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 20:19:33,992 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:19:33,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:19:34,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:19:34,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:19:34,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:19:34,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 30 states and 39 transitions. [2024-11-13 20:19:34,320 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2024-11-13 20:19:34,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-13 20:19:34,321 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:19:34,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:19:34,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:19:34,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:19:34,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:19:34,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 34 states and 46 transitions. [2024-11-13 20:19:34,723 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 46 transitions. [2024-11-13 20:19:34,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-13 20:19:34,726 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:19:34,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:19:34,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:19:35,045 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 20:19:35,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:19:35,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 36 states and 50 transitions. [2024-11-13 20:19:35,228 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2024-11-13 20:19:35,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-13 20:19:35,231 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:19:35,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:19:35,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:19:35,481 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 20:19:36,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:19:36,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 43 states and 66 transitions. [2024-11-13 20:19:36,388 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 66 transitions. [2024-11-13 20:19:36,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-13 20:19:36,390 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:19:36,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:19:36,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:19:36,648 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 20:19:37,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:19:37,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 45 states and 69 transitions. [2024-11-13 20:19:37,129 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 69 transitions. [2024-11-13 20:19:37,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-13 20:19:37,133 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:19:37,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:19:37,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:19:37,504 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-13 20:19:38,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:19:38,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 45 states and 66 transitions. [2024-11-13 20:19:38,338 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 66 transitions. [2024-11-13 20:19:38,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-13 20:19:38,339 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:19:38,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:19:38,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:19:38,601 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 20:19:40,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:19:40,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 57 states and 95 transitions. [2024-11-13 20:19:40,460 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 95 transitions. [2024-11-13 20:19:40,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-13 20:19:40,466 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:19:40,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:19:40,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:19:40,658 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-13 20:19:40,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:19:40,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 57 states and 94 transitions. [2024-11-13 20:19:40,942 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 94 transitions. [2024-11-13 20:19:40,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-13 20:19:40,944 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:19:40,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:19:40,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:19:41,563 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 13 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 20:19:43,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:19:43,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 60 states and 102 transitions. [2024-11-13 20:19:43,244 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 102 transitions. [2024-11-13 20:19:43,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-13 20:19:43,246 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:19:43,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:19:43,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:19:43,545 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 8 proven. 39 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 20:19:44,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:19:44,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 70 states and 129 transitions. [2024-11-13 20:19:44,922 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 129 transitions. [2024-11-13 20:19:44,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-13 20:19:44,924 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:19:44,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:19:44,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:19:45,123 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 17 proven. 98 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2024-11-13 20:19:45,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:19:45,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 72 states and 131 transitions. [2024-11-13 20:19:45,466 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 131 transitions. [2024-11-13 20:19:45,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-13 20:19:45,468 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:19:45,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:19:45,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:19:45,579 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 15 proven. 54 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-13 20:19:45,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:19:45,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 74 states and 133 transitions. [2024-11-13 20:19:45,947 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 133 transitions. [2024-11-13 20:19:45,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2024-11-13 20:19:45,950 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:19:45,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:19:45,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:19:46,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1248 backedges. 175 proven. 63 refuted. 0 times theorem prover too weak. 1010 trivial. 0 not checked. [2024-11-13 20:19:48,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:19:48,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 74 states and 118 transitions. [2024-11-13 20:19:48,821 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 118 transitions. [2024-11-13 20:19:48,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-13 20:19:48,823 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:19:48,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:19:48,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:19:49,240 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 100 proven. 113 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2024-11-13 20:19:50,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:19:50,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 79 states and 126 transitions. [2024-11-13 20:19:50,011 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 126 transitions. [2024-11-13 20:19:50,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 20:19:50,013 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:19:50,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:19:50,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:19:50,034 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:19:50,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:19:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:19:50,144 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:19:50,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:19:50,220 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 15 iterations. [2024-11-13 20:19:50,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 08:19:50 ImpRootNode [2024-11-13 20:19:50,284 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 20:19:50,285 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 20:19:50,285 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 20:19:50,285 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 20:19:50,286 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:19:33" (3/4) ... [2024-11-13 20:19:50,288 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 20:19:50,343 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfb27b7a-ba48-45e2-9b60-8465a641a838/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 20:19:50,343 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 20:19:50,344 INFO L158 Benchmark]: Toolchain (without parser) took 17006.20ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 93.4MB in the beginning and 212.0MB in the end (delta: -118.7MB). Peak memory consumption was 110.7MB. Max. memory is 16.1GB. [2024-11-13 20:19:50,344 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 167.8MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:19:50,344 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.44ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 82.5MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 20:19:50,344 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.01ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 81.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:19:50,345 INFO L158 Benchmark]: Boogie Preprocessor took 14.16ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 80.7MB in the end (delta: 699.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:19:50,345 INFO L158 Benchmark]: RCFGBuilder took 286.67ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 70.1MB in the end (delta: 10.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 20:19:50,345 INFO L158 Benchmark]: CodeCheck took 16366.25ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 70.1MB in the beginning and 216.0MB in the end (delta: -145.8MB). Peak memory consumption was 85.5MB. Max. memory is 16.1GB. [2024-11-13 20:19:50,346 INFO L158 Benchmark]: Witness Printer took 57.97ms. Allocated memory is still 352.3MB. Free memory was 216.0MB in the beginning and 212.0MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:19:50,351 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16.3s, OverallIterations: 15, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1646 SdHoareTripleChecker+Valid, 9.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 756 mSDsluCounter, 1612 SdHoareTripleChecker+Invalid, 7.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 829 mSDsCounter, 1343 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4668 IncrementalHoareTripleChecker+Invalid, 6011 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1343 mSolverCounterUnsat, 783 mSDtfsCounter, 4668 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6834 GetRequests, 6456 SyntacticMatches, 174 SemanticMatches, 204 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17456 ImplicationChecksByTransitivity, 11.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 997 NumberOfCodeBlocks, 997 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 878 ConstructedInterpolants, 0 QuantifiedInterpolants, 1494 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 2 PerfectInterpolantSequences, 2144/2560 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 - CounterExampleResult [Line: 41]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L38] int x = 5; VAL [x=5] [L39] CALL, EXPR fibo1(x) VAL [\old(n)=5] [L10] COND FALSE !(n < 1) VAL [\old(n)=5, n=5] [L12] COND FALSE !(n == 1) VAL [\old(n)=5, n=5] [L15] CALL, EXPR fibo2(n-1) VAL [\old(n)=4] [L20] COND FALSE !(n < 1) VAL [\old(n)=4, n=4] [L22] COND FALSE !(n == 1) VAL [\old(n)=4, n=4] [L25] CALL, EXPR fibo1(n-1) VAL [\old(n)=3] [L10] COND FALSE !(n < 1) VAL [\old(n)=3, n=3] [L12] COND FALSE !(n == 1) VAL [\old(n)=3, n=3] [L15] CALL, EXPR fibo2(n-1) VAL [\old(n)=2] [L20] COND FALSE !(n < 1) VAL [\old(n)=2, n=2] [L22] COND FALSE !(n == 1) VAL [\old(n)=2, n=2] [L25] CALL, EXPR fibo1(n-1) VAL [\old(n)=1] [L10] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L12] COND TRUE n == 1 [L13] return 1; VAL [\old(n)=1, \result=1] [L25] RET, EXPR fibo1(n-1) VAL [\old(n)=2, n=2] [L25] CALL, EXPR fibo1(n-2) VAL [\old(n)=0] [L10] COND TRUE n < 1 [L11] return 0; VAL [\old(n)=0, \result=0] [L25] RET, EXPR fibo1(n-2) VAL [\old(n)=2, n=2] [L25] return fibo1(n-1) + fibo1(n-2); [L15] RET, EXPR fibo2(n-1) VAL [\old(n)=3, n=3] [L15] CALL, EXPR fibo2(n-2) VAL [\old(n)=1] [L20] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L22] COND TRUE n == 1 [L23] return 1; VAL [\old(n)=1, \result=1] [L15] RET, EXPR fibo2(n-2) VAL [\old(n)=3, n=3] [L15] return fibo2(n-1) + fibo2(n-2); [L25] RET, EXPR fibo1(n-1) VAL [\old(n)=4, n=4] [L25] CALL, EXPR fibo1(n-2) VAL [\old(n)=2] [L10] COND FALSE !(n < 1) VAL [\old(n)=2, n=2] [L12] COND FALSE !(n == 1) VAL [\old(n)=2, n=2] [L15] CALL, EXPR fibo2(n-1) VAL [\old(n)=1] [L20] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L22] COND TRUE n == 1 [L23] return 1; VAL [\old(n)=1, \result=1] [L15] RET, EXPR fibo2(n-1) VAL [\old(n)=2, n=2] [L15] CALL, EXPR fibo2(n-2) VAL [\old(n)=0] [L20] COND TRUE n < 1 [L21] return 0; VAL [\old(n)=0, \result=0] [L15] RET, EXPR fibo2(n-2) VAL [\old(n)=2, n=2] [L15] return fibo2(n-1) + fibo2(n-2); [L25] RET, EXPR fibo1(n-2) VAL [\old(n)=4, n=4] [L25] return fibo1(n-1) + fibo1(n-2); [L15] RET, EXPR fibo2(n-1) VAL [\old(n)=5, n=5] [L15] CALL, EXPR fibo2(n-2) VAL [\old(n)=3] [L20] COND FALSE !(n < 1) VAL [\old(n)=3, n=3] [L22] COND FALSE !(n == 1) VAL [\old(n)=3, n=3] [L25] CALL, EXPR fibo1(n-1) VAL [\old(n)=2] [L10] COND FALSE !(n < 1) VAL [\old(n)=2, n=2] [L12] COND FALSE !(n == 1) VAL [\old(n)=2, n=2] [L15] CALL, EXPR fibo2(n-1) VAL [\old(n)=1] [L20] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L22] COND TRUE n == 1 [L23] return 1; VAL [\old(n)=1, \result=1] [L15] RET, EXPR fibo2(n-1) VAL [\old(n)=2, n=2] [L15] CALL, EXPR fibo2(n-2) VAL [\old(n)=0] [L20] COND TRUE n < 1 [L21] return 0; VAL [\old(n)=0, \result=0] [L15] RET, EXPR fibo2(n-2) VAL [\old(n)=2, n=2] [L15] return fibo2(n-1) + fibo2(n-2); [L25] RET, EXPR fibo1(n-1) VAL [\old(n)=3, n=3] [L25] CALL, EXPR fibo1(n-2) VAL [\old(n)=1] [L10] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L12] COND TRUE n == 1 [L13] return 1; VAL [\old(n)=1, \result=1] [L25] RET, EXPR fibo1(n-2) VAL [\old(n)=3, n=3] [L25] return fibo1(n-1) + fibo1(n-2); [L15] RET, EXPR fibo2(n-2) VAL [\old(n)=5, n=5] [L15] return fibo2(n-1) + fibo2(n-2); [L39] RET, EXPR fibo1(x) VAL [x=5] [L39] int result = fibo1(x); [L40] COND TRUE result == 5 VAL [x=5] [L41] reach_error() VAL [x=5] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 167.8MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 252.44ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 82.5MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.01ms. Allocated memory is still 117.4MB. Free memory was 82.5MB 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 14.16ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 80.7MB in the end (delta: 699.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 286.67ms. Allocated memory is still 117.4MB. Free memory was 80.7MB in the beginning and 70.1MB in the end (delta: 10.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 16366.25ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 70.1MB in the beginning and 216.0MB in the end (delta: -145.8MB). Peak memory consumption was 85.5MB. Max. memory is 16.1GB. * Witness Printer took 57.97ms. Allocated memory is still 352.3MB. Free memory was 216.0MB in the beginning and 212.0MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 20:19:50,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bfb27b7a-ba48-45e2-9b60-8465a641a838/bin/ukojak-verify-EEHR8qb7sm/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