./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/afterrec-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd52fa1-7057-4524-8fea-0e0f7eac44c1/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd52fa1-7057-4524-8fea-0e0f7eac44c1/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd52fa1-7057-4524-8fea-0e0f7eac44c1/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd52fa1-7057-4524-8fea-0e0f7eac44c1/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/afterrec-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd52fa1-7057-4524-8fea-0e0f7eac44c1/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd52fa1-7057-4524-8fea-0e0f7eac44c1/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1c92d0a3779cdad7e145b29b6ae35aeb1a90bc327e2327b92a2158da4de5b6ea --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 23:30:01,447 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 23:30:01,503 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd52fa1-7057-4524-8fea-0e0f7eac44c1/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-05 23:30:01,507 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 23:30:01,507 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 23:30:01,526 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 23:30:01,527 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 23:30:01,527 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 23:30:01,528 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 23:30:01,528 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 23:30:01,528 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 23:30:01,528 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 23:30:01,528 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 23:30:01,529 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 23:30:01,529 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 23:30:01,529 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 23:30:01,529 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 23:30:01,529 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 23:30:01,529 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 23:30:01,529 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 23:30:01,529 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 23:30:01,529 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 23:30:01,530 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 23:30:01,530 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 23:30:01,530 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 23:30:01,530 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 23:30:01,530 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 23:30:01,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:30:01,530 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 23:30:01,530 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 23:30:01,530 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 23:30:01,531 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 23:30:01,531 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 23:30:01,531 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_9dd52fa1-7057-4524-8fea-0e0f7eac44c1/bin/ukojak-verify-CZk0znPC7b Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c92d0a3779cdad7e145b29b6ae35aeb1a90bc327e2327b92a2158da4de5b6ea [2024-12-05 23:30:01,743 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 23:30:01,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 23:30:01,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 23:30:01,753 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 23:30:01,754 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 23:30:01,755 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd52fa1-7057-4524-8fea-0e0f7eac44c1/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/recursive-simple/afterrec-2.c [2024-12-05 23:30:04,335 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd52fa1-7057-4524-8fea-0e0f7eac44c1/bin/ukojak-verify-CZk0znPC7b/data/f3ff16ece/79aa32acf6b34f109696e9a4f45c1b6b/FLAG4efc6949e [2024-12-05 23:30:04,514 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 23:30:04,514 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd52fa1-7057-4524-8fea-0e0f7eac44c1/sv-benchmarks/c/recursive-simple/afterrec-2.c [2024-12-05 23:30:04,521 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd52fa1-7057-4524-8fea-0e0f7eac44c1/bin/ukojak-verify-CZk0znPC7b/data/f3ff16ece/79aa32acf6b34f109696e9a4f45c1b6b/FLAG4efc6949e [2024-12-05 23:30:04,897 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd52fa1-7057-4524-8fea-0e0f7eac44c1/bin/ukojak-verify-CZk0znPC7b/data/f3ff16ece/79aa32acf6b34f109696e9a4f45c1b6b [2024-12-05 23:30:04,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 23:30:04,901 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 23:30:04,902 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 23:30:04,902 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 23:30:04,905 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 23:30:04,905 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:30:04" (1/1) ... [2024-12-05 23:30:04,906 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b22ca95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:30:04, skipping insertion in model container [2024-12-05 23:30:04,906 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:30:04" (1/1) ... [2024-12-05 23:30:04,916 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 23:30:05,013 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_9dd52fa1-7057-4524-8fea-0e0f7eac44c1/sv-benchmarks/c/recursive-simple/afterrec-2.c[318,331] [2024-12-05 23:30:05,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:30:05,023 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 23:30:05,030 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_9dd52fa1-7057-4524-8fea-0e0f7eac44c1/sv-benchmarks/c/recursive-simple/afterrec-2.c[318,331] [2024-12-05 23:30:05,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:30:05,043 INFO L204 MainTranslator]: Completed translation [2024-12-05 23:30:05,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:30:05 WrapperNode [2024-12-05 23:30:05,043 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 23:30:05,044 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 23:30:05,044 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 23:30:05,044 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 23:30:05,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:30:05" (1/1) ... [2024-12-05 23:30:05,053 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:30:05" (1/1) ... [2024-12-05 23:30:05,062 INFO L138 Inliner]: procedures = 12, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 10 [2024-12-05 23:30:05,062 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 23:30:05,063 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 23:30:05,063 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 23:30:05,063 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 23:30:05,069 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:30:05" (1/1) ... [2024-12-05 23:30:05,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:30:05" (1/1) ... [2024-12-05 23:30:05,070 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:30:05" (1/1) ... [2024-12-05 23:30:05,070 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:30:05" (1/1) ... [2024-12-05 23:30:05,072 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:30:05" (1/1) ... [2024-12-05 23:30:05,073 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:30:05" (1/1) ... [2024-12-05 23:30:05,074 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:30:05" (1/1) ... [2024-12-05 23:30:05,075 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:30:05" (1/1) ... [2024-12-05 23:30:05,075 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:30:05" (1/1) ... [2024-12-05 23:30:05,076 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 23:30:05,077 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 23:30:05,077 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 23:30:05,077 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 23:30:05,078 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:30:05" (1/1) ... [2024-12-05 23:30:05,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:30:05,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd52fa1-7057-4524-8fea-0e0f7eac44c1/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 23:30:05,108 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd52fa1-7057-4524-8fea-0e0f7eac44c1/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 23:30:05,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd52fa1-7057-4524-8fea-0e0f7eac44c1/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 23:30:05,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 23:30:05,134 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-12-05 23:30:05,135 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-12-05 23:30:05,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 23:30:05,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 23:30:05,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 23:30:05,186 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 23:30:05,188 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 23:30:05,253 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-12-05 23:30:05,253 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 23:30:05,268 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 23:30:05,269 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-05 23:30:05,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:30:05 BoogieIcfgContainer [2024-12-05 23:30:05,269 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 23:30:05,270 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 23:30:05,270 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 23:30:05,277 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 23:30:05,277 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:30:05" (1/1) ... [2024-12-05 23:30:05,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 23:30:05,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:30:05,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2024-12-05 23:30:05,324 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2024-12-05 23:30:05,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-05 23:30:05,328 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:30:05,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:30:05,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:30:05,488 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:30:05,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:30:05,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 7 transitions. [2024-12-05 23:30:05,550 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2024-12-05 23:30:05,550 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-05 23:30:05,550 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 2 iterations. [2024-12-05 23:30:05,558 INFO L726 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-12-05 23:30:05,575 INFO L77 FloydHoareUtils]: At program point fErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) the Hoare annotation is: true [2024-12-05 23:30:05,575 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 5 10) the Hoare annotation is: (= |f_#in~n| 2) [2024-12-05 23:30:05,576 INFO L75 FloydHoareUtils]: For program point L8(line 8) no Hoare annotation was computed. [2024-12-05 23:30:05,576 INFO L77 FloydHoareUtils]: At program point fEXIT(lines 5 10) the Hoare annotation is: true [2024-12-05 23:30:05,576 INFO L77 FloydHoareUtils]: At program point L8-1(lines 5 10) the Hoare annotation is: true [2024-12-05 23:30:05,576 INFO L77 FloydHoareUtils]: At program point L6(line 6) the Hoare annotation is: (= 2 f_~n) [2024-12-05 23:30:05,576 INFO L77 FloydHoareUtils]: At program point fFINAL(lines 5 10) the Hoare annotation is: true [2024-12-05 23:30:05,576 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-12-05 23:30:05,576 INFO L77 FloydHoareUtils]: At program point L13(line 13) the Hoare annotation is: true [2024-12-05 23:30:05,576 INFO L77 FloydHoareUtils]: At program point L13-1(lines 12 14) the Hoare annotation is: true [2024-12-05 23:30:05,577 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-12-05 23:30:05,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 11:30:05 ImpRootNode [2024-12-05 23:30:05,590 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 23:30:05,590 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 23:30:05,590 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 23:30:05,591 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 23:30:05,591 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:30:05" (3/4) ... [2024-12-05 23:30:05,593 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-05 23:30:05,596 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f [2024-12-05 23:30:05,598 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-12-05 23:30:05,598 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-12-05 23:30:05,598 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-05 23:30:05,598 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-05 23:30:05,653 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd52fa1-7057-4524-8fea-0e0f7eac44c1/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-05 23:30:05,654 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd52fa1-7057-4524-8fea-0e0f7eac44c1/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-05 23:30:05,654 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 23:30:05,655 INFO L158 Benchmark]: Toolchain (without parser) took 753.86ms. Allocated memory is still 142.6MB. Free memory was 119.3MB in the beginning and 78.4MB in the end (delta: 40.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-12-05 23:30:05,655 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:30:05,655 INFO L158 Benchmark]: CACSL2BoogieTranslator took 141.87ms. Allocated memory is still 142.6MB. Free memory was 119.3MB in the beginning and 108.8MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 23:30:05,656 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.28ms. Allocated memory is still 142.6MB. Free memory was 108.8MB in the beginning and 107.8MB in the end (delta: 950.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:30:05,656 INFO L158 Benchmark]: Boogie Preprocessor took 13.68ms. Allocated memory is still 142.6MB. Free memory was 107.8MB in the beginning and 107.3MB in the end (delta: 500.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:30:05,656 INFO L158 Benchmark]: RCFGBuilder took 192.29ms. Allocated memory is still 142.6MB. Free memory was 107.3MB in the beginning and 98.2MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 23:30:05,657 INFO L158 Benchmark]: CodeCheck took 320.36ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 82.6MB in the end (delta: 15.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 23:30:05,657 INFO L158 Benchmark]: Witness Printer took 63.43ms. Allocated memory is still 142.6MB. Free memory was 82.6MB in the beginning and 78.4MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 23:30:05,659 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 5 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, 5 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 55 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, 0 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - PositiveResult [Line: 9]: 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 1 specifications checked. All of them hold - ProcedureContractResult [Line: 5]: Procedure Contract for f Derived contract for procedure f. Requires: (n == 2) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 141.87ms. Allocated memory is still 142.6MB. Free memory was 119.3MB in the beginning and 108.8MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.28ms. Allocated memory is still 142.6MB. Free memory was 108.8MB in the beginning and 107.8MB in the end (delta: 950.9kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.68ms. Allocated memory is still 142.6MB. Free memory was 107.8MB in the beginning and 107.3MB in the end (delta: 500.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 192.29ms. Allocated memory is still 142.6MB. Free memory was 107.3MB in the beginning and 98.2MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 320.36ms. Allocated memory is still 142.6MB. Free memory was 98.2MB in the beginning and 82.6MB in the end (delta: 15.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 63.43ms. Allocated memory is still 142.6MB. Free memory was 82.6MB in the beginning and 78.4MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-12-05 23:30:05,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9dd52fa1-7057-4524-8fea-0e0f7eac44c1/bin/ukojak-verify-CZk0znPC7b/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