./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/afterrec_2calls-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6681894-4838-4613-9b9e-21e25264411a/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6681894-4838-4613-9b9e-21e25264411a/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6681894-4838-4613-9b9e-21e25264411a/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6681894-4838-4613-9b9e-21e25264411a/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/afterrec_2calls-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6681894-4838-4613-9b9e-21e25264411a/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6681894-4838-4613-9b9e-21e25264411a/bin/ukojak-verify-G8NBE6pJGL --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 b329d37fd8bf911c1223006468d56bb06a44739627ad380de3f708faf818709f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:16:12,259 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:16:12,386 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6681894-4838-4613-9b9e-21e25264411a/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:16:12,399 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:16:12,400 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:16:12,438 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:16:12,439 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:16:12,440 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:16:12,441 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:16:12,446 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:16:12,447 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:16:12,447 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:16:12,448 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:16:12,449 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:16:12,450 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:16:12,450 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:16:12,451 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:16:12,451 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:16:12,452 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:16:12,452 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:16:12,452 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:16:12,453 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:16:12,455 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:16:12,455 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:16:12,456 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:16:12,457 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:16:12,457 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:16:12,457 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:16:12,458 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:16:12,458 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:16:12,460 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:16:12,460 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:16:12,460 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:16:12,460 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6681894-4838-4613-9b9e-21e25264411a/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6681894-4838-4613-9b9e-21e25264411a/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b329d37fd8bf911c1223006468d56bb06a44739627ad380de3f708faf818709f [2023-11-19 03:16:12,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:16:12,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:16:12,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:16:12,788 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:16:12,790 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:16:12,792 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6681894-4838-4613-9b9e-21e25264411a/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/recursive-simple/afterrec_2calls-2.c [2023-11-19 03:16:15,736 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:16:16,014 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:16:16,014 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6681894-4838-4613-9b9e-21e25264411a/sv-benchmarks/c/recursive-simple/afterrec_2calls-2.c [2023-11-19 03:16:16,020 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6681894-4838-4613-9b9e-21e25264411a/bin/ukojak-verify-G8NBE6pJGL/data/10451cc96/2dcacc6a304f4b819687f337a52a57af/FLAGe98ce5fed [2023-11-19 03:16:16,032 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6681894-4838-4613-9b9e-21e25264411a/bin/ukojak-verify-G8NBE6pJGL/data/10451cc96/2dcacc6a304f4b819687f337a52a57af [2023-11-19 03:16:16,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:16:16,036 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:16:16,038 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:16:16,038 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:16:16,044 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:16:16,044 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:16:16" (1/1) ... [2023-11-19 03:16:16,045 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e226e9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:16:16, skipping insertion in model container [2023-11-19 03:16:16,046 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:16:16" (1/1) ... [2023-11-19 03:16:16,065 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:16:16,202 WARN L240 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_d6681894-4838-4613-9b9e-21e25264411a/sv-benchmarks/c/recursive-simple/afterrec_2calls-2.c[354,367] [2023-11-19 03:16:16,211 WARN L240 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_d6681894-4838-4613-9b9e-21e25264411a/sv-benchmarks/c/recursive-simple/afterrec_2calls-2.c[442,455] [2023-11-19 03:16:16,212 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:16:16,222 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:16:16,235 WARN L240 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_d6681894-4838-4613-9b9e-21e25264411a/sv-benchmarks/c/recursive-simple/afterrec_2calls-2.c[354,367] [2023-11-19 03:16:16,236 WARN L240 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_d6681894-4838-4613-9b9e-21e25264411a/sv-benchmarks/c/recursive-simple/afterrec_2calls-2.c[442,455] [2023-11-19 03:16:16,237 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:16:16,253 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:16:16,253 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:16:16 WrapperNode [2023-11-19 03:16:16,253 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:16:16,255 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:16:16,255 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:16:16,255 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:16:16,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:16:16" (1/1) ... [2023-11-19 03:16:16,270 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:16:16" (1/1) ... [2023-11-19 03:16:16,286 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 10 [2023-11-19 03:16:16,287 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:16:16,288 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:16:16,288 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:16:16,288 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:16:16,297 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:16:16" (1/1) ... [2023-11-19 03:16:16,298 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:16:16" (1/1) ... [2023-11-19 03:16:16,299 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:16:16" (1/1) ... [2023-11-19 03:16:16,299 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:16:16" (1/1) ... [2023-11-19 03:16:16,302 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:16:16" (1/1) ... [2023-11-19 03:16:16,303 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:16:16" (1/1) ... [2023-11-19 03:16:16,304 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:16:16" (1/1) ... [2023-11-19 03:16:16,305 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:16:16" (1/1) ... [2023-11-19 03:16:16,306 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:16:16,307 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:16:16,307 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:16:16,308 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:16:16,308 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:16:16" (1/1) ... [2023-11-19 03:16:16,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:16:16,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6681894-4838-4613-9b9e-21e25264411a/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:16:16,341 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6681894-4838-4613-9b9e-21e25264411a/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:16:16,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6681894-4838-4613-9b9e-21e25264411a/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:16:16,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:16:16,393 INFO L130 BoogieDeclarations]: Found specification of procedure f [2023-11-19 03:16:16,393 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2023-11-19 03:16:16,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:16:16,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:16:16,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:16:16,394 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2023-11-19 03:16:16,394 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2023-11-19 03:16:16,469 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:16:16,472 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:16:16,641 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:16:16,654 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:16:16,670 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:16:16,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:16:16 BoogieIcfgContainer [2023-11-19 03:16:16,690 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:16:16,691 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:16:16,691 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:16:16,702 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:16:16,702 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:16:16" (1/1) ... [2023-11-19 03:16:16,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:16:16,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:16:16,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2023-11-19 03:16:16,778 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2023-11-19 03:16:16,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 03:16:16,782 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:16:16,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:16:16,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:16:17,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:16:17,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:16:17,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 7 transitions. [2023-11-19 03:16:17,075 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2023-11-19 03:16:17,075 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 03:16:17,075 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 2 iterations. [2023-11-19 03:16:17,085 INFO L751 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2023-11-19 03:16:17,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:16:17 ImpRootNode [2023-11-19 03:16:17,100 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:16:17,100 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:16:17,101 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:16:17,101 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:16:17,102 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:16:16" (3/4) ... [2023-11-19 03:16:17,104 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 03:16:17,108 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f [2023-11-19 03:16:17,109 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f2 [2023-11-19 03:16:17,113 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-19 03:16:17,113 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-19 03:16:17,113 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 03:16:17,114 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 03:16:17,229 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6681894-4838-4613-9b9e-21e25264411a/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:16:17,230 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6681894-4838-4613-9b9e-21e25264411a/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 03:16:17,230 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:16:17,234 INFO L158 Benchmark]: Toolchain (without parser) took 1195.01ms. Allocated memory is still 176.2MB. Free memory was 142.6MB in the beginning and 99.4MB in the end (delta: 43.2MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-11-19 03:16:17,235 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:16:17,235 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.02ms. Allocated memory is still 176.2MB. Free memory was 142.6MB in the beginning and 132.3MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:16:17,236 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.53ms. Allocated memory is still 176.2MB. Free memory was 132.3MB in the beginning and 130.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:16:17,237 INFO L158 Benchmark]: Boogie Preprocessor took 18.67ms. Allocated memory is still 176.2MB. Free memory was 130.9MB in the beginning and 130.2MB in the end (delta: 664.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:16:17,239 INFO L158 Benchmark]: RCFGBuilder took 382.83ms. Allocated memory is still 176.2MB. Free memory was 130.2MB in the beginning and 120.4MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:16:17,247 INFO L158 Benchmark]: CodeCheck took 408.95ms. Allocated memory is still 176.2MB. Free memory was 119.7MB in the beginning and 103.6MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 03:16:17,248 INFO L158 Benchmark]: Witness Printer took 130.05ms. Allocated memory is still 176.2MB. Free memory was 103.6MB in the beginning and 99.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:16:17,250 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: 0.4s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 9 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 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 - PositiveResult [Line: 12]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 216.02ms. Allocated memory is still 176.2MB. Free memory was 142.6MB in the beginning and 132.3MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.53ms. Allocated memory is still 176.2MB. Free memory was 132.3MB in the beginning and 130.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.67ms. Allocated memory is still 176.2MB. Free memory was 130.9MB in the beginning and 130.2MB in the end (delta: 664.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 382.83ms. Allocated memory is still 176.2MB. Free memory was 130.2MB in the beginning and 120.4MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 408.95ms. Allocated memory is still 176.2MB. Free memory was 119.7MB in the beginning and 103.6MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 130.05ms. Allocated memory is still 176.2MB. Free memory was 103.6MB in the beginning and 99.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 03:16:17,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6681894-4838-4613-9b9e-21e25264411a/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE