./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/afterrec_2calls-1.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_5ba876ea-c468-4300-aa04-6dd2fe5af986/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba876ea-c468-4300-aa04-6dd2fe5af986/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_5ba876ea-c468-4300-aa04-6dd2fe5af986/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba876ea-c468-4300-aa04-6dd2fe5af986/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba876ea-c468-4300-aa04-6dd2fe5af986/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_5ba876ea-c468-4300-aa04-6dd2fe5af986/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 8cf5a35873afe0e5012214bd680ff6c9f10002775e1599934b6c286bf71e0e3d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 21:19:11,511 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:19:11,610 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba876ea-c468-4300-aa04-6dd2fe5af986/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 21:19:11,617 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 21:19:11,617 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 21:19:11,639 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:19:11,640 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 21:19:11,640 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 21:19:11,641 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:19:11,641 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:19:11,641 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:19:11,641 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 21:19:11,641 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 21:19:11,641 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 21:19:11,641 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 21:19:11,641 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:19:11,642 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 21:19:11,642 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:19:11,642 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 21:19:11,642 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:19:11,642 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 21:19:11,642 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 21:19:11,642 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:19:11,642 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:19:11,642 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:19:11,643 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:19:11,643 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:19:11,643 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:19:11,643 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:19:11,643 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:19:11,643 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 21:19:11,643 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 21:19:11,643 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 21:19:11,644 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_5ba876ea-c468-4300-aa04-6dd2fe5af986/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 -> 8cf5a35873afe0e5012214bd680ff6c9f10002775e1599934b6c286bf71e0e3d [2024-11-13 21:19:11,946 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:19:11,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:19:11,957 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:19:11,958 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:19:11,958 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:19:11,960 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba876ea-c468-4300-aa04-6dd2fe5af986/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c Unable to find full path for "g++" [2024-11-13 21:19:13,784 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:19:14,054 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:19:14,055 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba876ea-c468-4300-aa04-6dd2fe5af986/sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c [2024-11-13 21:19:14,067 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba876ea-c468-4300-aa04-6dd2fe5af986/bin/ukojak-verify-EEHR8qb7sm/data/fe1976eca/6f6f4c6a57dd4574b523fa54db39d180/FLAG4409af4b8 [2024-11-13 21:19:14,104 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba876ea-c468-4300-aa04-6dd2fe5af986/bin/ukojak-verify-EEHR8qb7sm/data/fe1976eca/6f6f4c6a57dd4574b523fa54db39d180 [2024-11-13 21:19:14,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:19:14,108 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:19:14,110 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:19:14,110 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:19:14,115 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:19:14,116 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:19:14" (1/1) ... [2024-11-13 21:19:14,117 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@397d773 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:14, skipping insertion in model container [2024-11-13 21:19:14,117 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:19:14" (1/1) ... [2024-11-13 21:19:14,131 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:19:14,281 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_5ba876ea-c468-4300-aa04-6dd2fe5af986/sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c[354,367] [2024-11-13 21:19:14,288 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_5ba876ea-c468-4300-aa04-6dd2fe5af986/sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c[442,455] [2024-11-13 21:19:14,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:19:14,301 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:19:14,314 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_5ba876ea-c468-4300-aa04-6dd2fe5af986/sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c[354,367] [2024-11-13 21:19:14,317 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_5ba876ea-c468-4300-aa04-6dd2fe5af986/sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c[442,455] [2024-11-13 21:19:14,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:19:14,332 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:19:14,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:14 WrapperNode [2024-11-13 21:19:14,333 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:19:14,334 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:19:14,334 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:19:14,334 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:19:14,341 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:14" (1/1) ... [2024-11-13 21:19:14,347 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:14" (1/1) ... [2024-11-13 21:19:14,361 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 10 [2024-11-13 21:19:14,361 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:19:14,362 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:19:14,362 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:19:14,362 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:19:14,369 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:14" (1/1) ... [2024-11-13 21:19:14,369 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:14" (1/1) ... [2024-11-13 21:19:14,370 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:14" (1/1) ... [2024-11-13 21:19:14,370 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:14" (1/1) ... [2024-11-13 21:19:14,372 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:14" (1/1) ... [2024-11-13 21:19:14,374 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:14" (1/1) ... [2024-11-13 21:19:14,374 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:14" (1/1) ... [2024-11-13 21:19:14,375 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:14" (1/1) ... [2024-11-13 21:19:14,376 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:19:14,378 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:19:14,378 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:19:14,378 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:19:14,380 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:19:14" (1/1) ... [2024-11-13 21:19:14,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:19:14,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba876ea-c468-4300-aa04-6dd2fe5af986/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:19:14,424 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba876ea-c468-4300-aa04-6dd2fe5af986/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:19:14,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba876ea-c468-4300-aa04-6dd2fe5af986/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:19:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 21:19:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-11-13 21:19:14,462 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-11-13 21:19:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:19:14,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:19:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 21:19:14,462 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-11-13 21:19:14,462 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-11-13 21:19:14,535 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:19:14,537 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:19:14,634 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-11-13 21:19:14,634 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:19:14,653 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:19:14,656 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 21:19:14,656 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:19:14 BoogieIcfgContainer [2024-11-13 21:19:14,656 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:19:14,658 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:19:14,658 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:19:14,670 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:19:14,670 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:19:14" (1/1) ... [2024-11-13 21:19:14,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:19:14,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:19:14,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2024-11-13 21:19:14,735 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2024-11-13 21:19:14,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-13 21:19:14,739 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:19:14,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:19:14,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:19:15,022 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 21:19:15,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:19:15,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 20 transitions. [2024-11-13 21:19:15,197 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2024-11-13 21:19:15,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-13 21:19:15,198 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:19:15,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:19:15,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:19:15,213 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:19:15,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:19:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:19:15,261 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 21:19:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 21:19:15,276 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-13 21:19:15,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:19:15 ImpRootNode [2024-11-13 21:19:15,300 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:19:15,301 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:19:15,301 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:19:15,301 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:19:15,302 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:19:14" (3/4) ... [2024-11-13 21:19:15,303 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 21:19:15,332 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba876ea-c468-4300-aa04-6dd2fe5af986/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 21:19:15,332 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:19:15,333 INFO L158 Benchmark]: Toolchain (without parser) took 1224.67ms. Allocated memory is still 142.6MB. Free memory was 118.4MB in the beginning and 72.0MB in the end (delta: 46.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-13 21:19:15,333 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 142.6MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:19:15,334 INFO L158 Benchmark]: CACSL2BoogieTranslator took 223.57ms. Allocated memory is still 142.6MB. Free memory was 118.4MB in the beginning and 107.9MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 21:19:15,334 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.46ms. Allocated memory is still 142.6MB. Free memory was 107.9MB in the beginning and 106.9MB in the end (delta: 973.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:19:15,335 INFO L158 Benchmark]: Boogie Preprocessor took 14.36ms. Allocated memory is still 142.6MB. Free memory was 106.9MB in the beginning and 106.4MB in the end (delta: 499.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:19:15,335 INFO L158 Benchmark]: RCFGBuilder took 278.31ms. Allocated memory is still 142.6MB. Free memory was 106.2MB in the beginning and 96.6MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 21:19:15,335 INFO L158 Benchmark]: CodeCheck took 642.03ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 73.7MB in the end (delta: 22.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 21:19:15,336 INFO L158 Benchmark]: Witness Printer took 31.47ms. Allocated memory is still 142.6MB. Free memory was 73.7MB in the beginning and 72.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:19:15,338 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, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 10 mSDtfsCounter, 23 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L23] CALL f(4) VAL [\old(n)=4] [L9] COND FALSE !(n<3) [L10] n-- VAL [\old(n)=4, n=3] [L11] CALL f2(n) VAL [\old(n)=3] [L16] COND FALSE !(n<3) [L17] n-- VAL [\old(n)=3, n=2] [L18] CALL f(n) VAL [\old(n)=2] [L9] COND TRUE n<3 VAL [\old(n)=2] [L18] RET f(n) VAL [\old(n)=3, n=2] [L19] reach_error() VAL [\old(n)=3, n=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 142.6MB. Free memory is still 79.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 223.57ms. Allocated memory is still 142.6MB. Free memory was 118.4MB in the beginning and 107.9MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.46ms. Allocated memory is still 142.6MB. Free memory was 107.9MB in the beginning and 106.9MB in the end (delta: 973.1kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.36ms. Allocated memory is still 142.6MB. Free memory was 106.9MB in the beginning and 106.4MB in the end (delta: 499.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 278.31ms. Allocated memory is still 142.6MB. Free memory was 106.2MB in the beginning and 96.6MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 642.03ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 73.7MB in the end (delta: 22.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 31.47ms. Allocated memory is still 142.6MB. Free memory was 73.7MB in the beginning and 72.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 21:19:15,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba876ea-c468-4300-aa04-6dd2fe5af986/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