./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b450e7a-3475-438e-a18b-742e06fbd927/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b450e7a-3475-438e-a18b-742e06fbd927/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_1b450e7a-3475-438e-a18b-742e06fbd927/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b450e7a-3475-438e-a18b-742e06fbd927/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b450e7a-3475-438e-a18b-742e06fbd927/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_1b450e7a-3475-438e-a18b-742e06fbd927/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 8cf5a35873afe0e5012214bd680ff6c9f10002775e1599934b6c286bf71e0e3d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 01:01:44,428 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 01:01:44,490 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b450e7a-3475-438e-a18b-742e06fbd927/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 01:01:44,494 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 01:01:44,494 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 01:01:44,514 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 01:01:44,515 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 01:01:44,515 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 01:01:44,515 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 01:01:44,516 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 01:01:44,516 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 01:01:44,516 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 01:01:44,516 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 01:01:44,516 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 01:01:44,516 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 01:01:44,516 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 01:01:44,516 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 01:01:44,516 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 01:01:44,517 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 01:01:44,517 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 01:01:44,517 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 01:01:44,517 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 01:01:44,517 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 01:01:44,517 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 01:01:44,517 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 01:01:44,517 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 01:01:44,517 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 01:01:44,517 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:01:44,518 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 01:01:44,518 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 01:01:44,518 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 01:01:44,518 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 01:01:44,518 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 01:01:44,518 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_1b450e7a-3475-438e-a18b-742e06fbd927/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 -> 8cf5a35873afe0e5012214bd680ff6c9f10002775e1599934b6c286bf71e0e3d [2024-12-06 01:01:44,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 01:01:44,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 01:01:44,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 01:01:44,774 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 01:01:44,775 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 01:01:44,776 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b450e7a-3475-438e-a18b-742e06fbd927/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c [2024-12-06 01:01:47,385 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b450e7a-3475-438e-a18b-742e06fbd927/bin/ukojak-verify-CZk0znPC7b/data/a6b3fa579/921d67b6424d4363a7ac487f16269603/FLAG413886cd8 [2024-12-06 01:01:47,562 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 01:01:47,562 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b450e7a-3475-438e-a18b-742e06fbd927/sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c [2024-12-06 01:01:47,569 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b450e7a-3475-438e-a18b-742e06fbd927/bin/ukojak-verify-CZk0znPC7b/data/a6b3fa579/921d67b6424d4363a7ac487f16269603/FLAG413886cd8 [2024-12-06 01:01:47,946 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b450e7a-3475-438e-a18b-742e06fbd927/bin/ukojak-verify-CZk0znPC7b/data/a6b3fa579/921d67b6424d4363a7ac487f16269603 [2024-12-06 01:01:47,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 01:01:47,949 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 01:01:47,949 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 01:01:47,949 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 01:01:47,953 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 01:01:47,953 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:01:47" (1/1) ... [2024-12-06 01:01:47,954 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bc65901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:01:47, skipping insertion in model container [2024-12-06 01:01:47,954 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:01:47" (1/1) ... [2024-12-06 01:01:47,964 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 01:01:48,065 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_1b450e7a-3475-438e-a18b-742e06fbd927/sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c[354,367] [2024-12-06 01:01:48,070 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_1b450e7a-3475-438e-a18b-742e06fbd927/sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c[442,455] [2024-12-06 01:01:48,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:01:48,080 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 01:01:48,089 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_1b450e7a-3475-438e-a18b-742e06fbd927/sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c[354,367] [2024-12-06 01:01:48,090 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_1b450e7a-3475-438e-a18b-742e06fbd927/sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c[442,455] [2024-12-06 01:01:48,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:01:48,103 INFO L204 MainTranslator]: Completed translation [2024-12-06 01:01:48,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:01:48 WrapperNode [2024-12-06 01:01:48,104 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 01:01:48,105 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 01:01:48,105 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 01:01:48,105 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 01:01:48,110 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:01:48" (1/1) ... [2024-12-06 01:01:48,115 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:01:48" (1/1) ... [2024-12-06 01:01:48,126 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 10 [2024-12-06 01:01:48,126 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 01:01:48,127 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 01:01:48,127 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 01:01:48,127 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 01:01:48,131 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:01:48" (1/1) ... [2024-12-06 01:01:48,131 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:01:48" (1/1) ... [2024-12-06 01:01:48,132 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:01:48" (1/1) ... [2024-12-06 01:01:48,132 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:01:48" (1/1) ... [2024-12-06 01:01:48,134 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:01:48" (1/1) ... [2024-12-06 01:01:48,135 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:01:48" (1/1) ... [2024-12-06 01:01:48,136 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:01:48" (1/1) ... [2024-12-06 01:01:48,137 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:01:48" (1/1) ... [2024-12-06 01:01:48,138 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:01:48" (1/1) ... [2024-12-06 01:01:48,139 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 01:01:48,139 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 01:01:48,139 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 01:01:48,139 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 01:01:48,140 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:01:48" (1/1) ... [2024-12-06 01:01:48,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:01:48,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b450e7a-3475-438e-a18b-742e06fbd927/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 01:01:48,166 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b450e7a-3475-438e-a18b-742e06fbd927/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 01:01:48,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b450e7a-3475-438e-a18b-742e06fbd927/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 01:01:48,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 01:01:48,192 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-12-06 01:01:48,192 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-12-06 01:01:48,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 01:01:48,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 01:01:48,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 01:01:48,192 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-12-06 01:01:48,192 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-12-06 01:01:48,243 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 01:01:48,245 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 01:01:48,323 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-12-06 01:01:48,323 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 01:01:48,339 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 01:01:48,340 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 01:01:48,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:01:48 BoogieIcfgContainer [2024-12-06 01:01:48,340 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 01:01:48,341 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 01:01:48,341 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 01:01:48,347 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 01:01:48,348 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:01:48" (1/1) ... [2024-12-06 01:01:48,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 01:01:48,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:01:48,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2024-12-06 01:01:48,397 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2024-12-06 01:01:48,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 01:01:48,401 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:01:48,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:01:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:01:48,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:01:48,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:01:48,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 20 transitions. [2024-12-06 01:01:48,744 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2024-12-06 01:01:48,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-06 01:01:48,745 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:01:48,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:01:48,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:01:48,759 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:01:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:01:48,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:01:48,797 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:01:48,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:01:48,810 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-12-06 01:01:48,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 01:01:48 ImpRootNode [2024-12-06 01:01:48,829 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 01:01:48,829 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 01:01:48,829 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 01:01:48,830 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 01:01:48,830 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:01:48" (3/4) ... [2024-12-06 01:01:48,831 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 01:01:48,857 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 8. [2024-12-06 01:01:48,892 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b450e7a-3475-438e-a18b-742e06fbd927/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 01:01:48,892 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b450e7a-3475-438e-a18b-742e06fbd927/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 01:01:48,892 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 01:01:48,893 INFO L158 Benchmark]: Toolchain (without parser) took 944.47ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 68.9MB in the end (delta: 48.6MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-12-06 01:01:48,894 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory is still 83.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:01:48,894 INFO L158 Benchmark]: CACSL2BoogieTranslator took 154.78ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 107.0MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 01:01:48,894 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.68ms. Allocated memory is still 142.6MB. Free memory was 107.0MB in the beginning and 105.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:01:48,894 INFO L158 Benchmark]: Boogie Preprocessor took 11.94ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 105.3MB in the end (delta: 594.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:01:48,895 INFO L158 Benchmark]: RCFGBuilder took 200.85ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 95.4MB in the end (delta: 9.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 01:01:48,895 INFO L158 Benchmark]: CodeCheck took 488.25ms. Allocated memory is still 142.6MB. Free memory was 95.4MB in the beginning and 72.9MB in the end (delta: 22.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 01:01:48,895 INFO L158 Benchmark]: Witness Printer took 63.08ms. Allocated memory is still 142.6MB. Free memory was 72.9MB in the beginning and 68.9MB in the end (delta: 4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 01:01:48,897 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: 0.5s, 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, 0.0s 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, 0.1s 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, ConComCheckerStatistics: 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 0.26ms. Allocated memory is still 142.6MB. Free memory is still 83.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 154.78ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 107.0MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.68ms. Allocated memory is still 142.6MB. Free memory was 107.0MB in the beginning and 105.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 11.94ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 105.3MB in the end (delta: 594.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 200.85ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 95.4MB in the end (delta: 9.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 488.25ms. Allocated memory is still 142.6MB. Free memory was 95.4MB in the beginning and 72.9MB in the end (delta: 22.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 63.08ms. Allocated memory is still 142.6MB. Free memory was 72.9MB in the beginning and 68.9MB in the end (delta: 4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 01:01:48,912 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b450e7a-3475-438e-a18b-742e06fbd927/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE