./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id2_b2_o3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45078128-7cf0-4c7f-b7b7-ea373be75dbb/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45078128-7cf0-4c7f-b7b7-ea373be75dbb/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45078128-7cf0-4c7f-b7b7-ea373be75dbb/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45078128-7cf0-4c7f-b7b7-ea373be75dbb/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id2_b2_o3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45078128-7cf0-4c7f-b7b7-ea373be75dbb/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45078128-7cf0-4c7f-b7b7-ea373be75dbb/bin/ukojak-verify-ImItNfHLgk --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 27149dc6702b40ed508ca85da6c2aa8aa33688ab27cc92cc19b394120cb70fd9 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:22:59,292 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:22:59,396 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45078128-7cf0-4c7f-b7b7-ea373be75dbb/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-09 00:22:59,403 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:22:59,404 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:22:59,438 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:22:59,439 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:22:59,439 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:22:59,442 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:22:59,443 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:22:59,443 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:22:59,444 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:22:59,457 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:22:59,458 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:22:59,458 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:22:59,458 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:22:59,459 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:22:59,459 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:22:59,459 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:22:59,460 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:22:59,460 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:22:59,461 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:22:59,462 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:22:59,466 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:22:59,466 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:22:59,466 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:22:59,467 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:22:59,467 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:22:59,467 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:22:59,468 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:22:59,468 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:22:59,468 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:22:59,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:22:59,469 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_45078128-7cf0-4c7f-b7b7-ea373be75dbb/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45078128-7cf0-4c7f-b7b7-ea373be75dbb/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27149dc6702b40ed508ca85da6c2aa8aa33688ab27cc92cc19b394120cb70fd9 [2024-11-09 00:22:59,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:22:59,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:22:59,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:22:59,866 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:22:59,866 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:22:59,868 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45078128-7cf0-4c7f-b7b7-ea373be75dbb/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/recursive-simple/id2_b2_o3.c Unable to find full path for "g++" [2024-11-09 00:23:01,806 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:23:02,009 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:23:02,010 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45078128-7cf0-4c7f-b7b7-ea373be75dbb/sv-benchmarks/c/recursive-simple/id2_b2_o3.c [2024-11-09 00:23:02,017 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45078128-7cf0-4c7f-b7b7-ea373be75dbb/bin/ukojak-verify-ImItNfHLgk/data/31c1fdd35/05eac33143c8412d8b36bde5ea0b0954/FLAG63e0577a7 [2024-11-09 00:23:02,034 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45078128-7cf0-4c7f-b7b7-ea373be75dbb/bin/ukojak-verify-ImItNfHLgk/data/31c1fdd35/05eac33143c8412d8b36bde5ea0b0954 [2024-11-09 00:23:02,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:23:02,039 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:23:02,040 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:23:02,040 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:23:02,045 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:23:02,046 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:23:02" (1/1) ... [2024-11-09 00:23:02,047 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55bcca39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:23:02, skipping insertion in model container [2024-11-09 00:23:02,047 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:23:02" (1/1) ... [2024-11-09 00:23:02,083 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:23:02,300 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_45078128-7cf0-4c7f-b7b7-ea373be75dbb/sv-benchmarks/c/recursive-simple/id2_b2_o3.c[771,784] [2024-11-09 00:23:02,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:23:02,314 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:23:02,331 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_45078128-7cf0-4c7f-b7b7-ea373be75dbb/sv-benchmarks/c/recursive-simple/id2_b2_o3.c[771,784] [2024-11-09 00:23:02,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:23:02,346 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:23:02,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:23:02 WrapperNode [2024-11-09 00:23:02,347 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:23:02,348 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:23:02,348 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:23:02,348 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:23:02,357 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:23:02" (1/1) ... [2024-11-09 00:23:02,363 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:23:02" (1/1) ... [2024-11-09 00:23:02,380 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2024-11-09 00:23:02,380 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:23:02,381 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:23:02,382 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:23:02,382 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:23:02,390 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:23:02" (1/1) ... [2024-11-09 00:23:02,391 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:23:02" (1/1) ... [2024-11-09 00:23:02,392 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:23:02" (1/1) ... [2024-11-09 00:23:02,392 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:23:02" (1/1) ... [2024-11-09 00:23:02,394 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:23:02" (1/1) ... [2024-11-09 00:23:02,396 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:23:02" (1/1) ... [2024-11-09 00:23:02,397 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:23:02" (1/1) ... [2024-11-09 00:23:02,398 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:23:02" (1/1) ... [2024-11-09 00:23:02,399 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:23:02,400 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:23:02,400 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:23:02,401 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:23:02,401 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:23:02" (1/1) ... [2024-11-09 00:23:02,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:23:02,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45078128-7cf0-4c7f-b7b7-ea373be75dbb/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:23:02,431 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45078128-7cf0-4c7f-b7b7-ea373be75dbb/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:23:02,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45078128-7cf0-4c7f-b7b7-ea373be75dbb/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:23:02,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:23:02,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 00:23:02,463 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2024-11-09 00:23:02,463 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2024-11-09 00:23:02,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:23:02,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:23:02,464 INFO L130 BoogieDeclarations]: Found specification of procedure id [2024-11-09 00:23:02,464 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2024-11-09 00:23:02,538 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:23:02,542 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:23:02,803 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-09 00:23:02,803 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:23:02,863 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:23:02,863 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 00:23:02,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:23:02 BoogieIcfgContainer [2024-11-09 00:23:02,864 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:23:02,865 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:23:02,865 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:23:02,874 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:23:02,875 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:23:02" (1/1) ... [2024-11-09 00:23:02,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:23:02,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:23:02,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2024-11-09 00:23:02,963 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2024-11-09 00:23:02,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 00:23:02,971 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:23:02,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:23:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:23:03,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:23:03,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:23:03,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2024-11-09 00:23:03,365 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2024-11-09 00:23:03,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 00:23:03,366 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:23:03,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:23:03,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:23:03,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:23:04,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:23:04,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 37 transitions. [2024-11-09 00:23:04,166 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2024-11-09 00:23:04,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 00:23:04,167 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:23:04,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:23:04,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:23:04,648 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 00:23:05,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:23:05,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 39 states and 47 transitions. [2024-11-09 00:23:05,264 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2024-11-09 00:23:05,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 00:23:05,266 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:23:05,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:23:05,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:23:05,636 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 00:23:06,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:23:06,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 43 states and 53 transitions. [2024-11-09 00:23:06,135 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2024-11-09 00:23:06,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-09 00:23:06,137 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:23:06,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:23:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:23:06,562 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 00:23:06,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:23:06,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 34 states and 38 transitions. [2024-11-09 00:23:06,767 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2024-11-09 00:23:06,768 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 00:23:06,768 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2024-11-09 00:23:06,777 INFO L729 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-11-09 00:23:07,229 INFO L77 FloydHoareUtils]: At program point L17(line 17) the Hoare annotation is: true [2024-11-09 00:23:07,229 INFO L77 FloydHoareUtils]: At program point L18-1(line 18) the Hoare annotation is: (not (and (not (= |id2_#t~ret5| 0)) (not (= |id2_#t~ret5| 1)) (not (and (<= 2 |id2_#t~ret5|) (<= (div (+ |id2_#t~ret5| 1) 4294967296) 0))))) [2024-11-09 00:23:07,230 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 16 21) the Hoare annotation is: true [2024-11-09 00:23:07,230 INFO L77 FloydHoareUtils]: At program point id2EXIT(lines 16 21) the Hoare annotation is: (not (and (not (= |id2_#res| 2)) (not (= |id2_#res| 1)) (not (= |id2_#res| 0)))) [2024-11-09 00:23:07,231 INFO L77 FloydHoareUtils]: At program point id2FINAL(lines 16 21) the Hoare annotation is: (not (and (not (= |id2_#res| 2)) (not (= |id2_#res| 1)) (not (= |id2_#res| 0)))) [2024-11-09 00:23:07,232 INFO L77 FloydHoareUtils]: At program point L18(line 18) the Hoare annotation is: true [2024-11-09 00:23:07,232 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-09 00:23:07,232 INFO L75 FloydHoareUtils]: For program point L27(line 27) no Hoare annotation was computed. [2024-11-09 00:23:07,232 INFO L77 FloydHoareUtils]: At program point L26(lines 26 28) the Hoare annotation is: (and (<= 0 (div |ULTIMATE.start_main_~result~0#1| 4294967296)) (<= |ULTIMATE.start_main_~result~0#1| 2)) [2024-11-09 00:23:07,233 INFO L77 FloydHoareUtils]: At program point L25(line 25) the Hoare annotation is: true [2024-11-09 00:23:07,233 INFO L77 FloydHoareUtils]: At program point L25-1(line 25) the Hoare annotation is: (not (and (not (= |ULTIMATE.start_main_#t~ret7#1| 0)) (not (= |ULTIMATE.start_main_#t~ret7#1| 2)) (not (= |ULTIMATE.start_main_#t~ret7#1| 1)))) [2024-11-09 00:23:07,233 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 27) no Hoare annotation was computed. [2024-11-09 00:23:07,233 INFO L77 FloydHoareUtils]: At program point L23(lines 23 29) the Hoare annotation is: true [2024-11-09 00:23:07,233 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-09 00:23:07,234 INFO L77 FloydHoareUtils]: At program point idFINAL(lines 9 14) the Hoare annotation is: (not (and (not (= |id_#res| 0)) (not (= 2 |id_#res|)) (not (= |id_#res| 1)))) [2024-11-09 00:23:07,234 INFO L77 FloydHoareUtils]: At program point L11(line 11) the Hoare annotation is: true [2024-11-09 00:23:07,234 INFO L77 FloydHoareUtils]: At program point idEXIT(lines 9 14) the Hoare annotation is: (not (and (not (= |id_#res| 0)) (not (= 2 |id_#res|)) (not (= |id_#res| 1)))) [2024-11-09 00:23:07,234 INFO L77 FloydHoareUtils]: At program point L10(line 10) the Hoare annotation is: true [2024-11-09 00:23:07,236 INFO L77 FloydHoareUtils]: At program point L11-1(line 11) the Hoare annotation is: (not (and (not (and (<= (div (+ |id_#t~ret4| 1) 4294967296) 0) (<= 2 |id_#t~ret4|))) (not (= |id_#t~ret4| 0)) (not (= |id_#t~ret4| 1)))) [2024-11-09 00:23:07,237 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 9 14) the Hoare annotation is: true [2024-11-09 00:23:07,261 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:23:07 ImpRootNode [2024-11-09 00:23:07,261 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:23:07,262 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:23:07,262 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:23:07,262 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:23:07,263 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:23:02" (3/4) ... [2024-11-09 00:23:07,266 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 00:23:07,270 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id2 [2024-11-09 00:23:07,270 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2024-11-09 00:23:07,276 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-09 00:23:07,276 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-09 00:23:07,276 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 00:23:07,277 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 00:23:07,381 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45078128-7cf0-4c7f-b7b7-ea373be75dbb/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-09 00:23:07,381 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45078128-7cf0-4c7f-b7b7-ea373be75dbb/bin/ukojak-verify-ImItNfHLgk/witness.yml [2024-11-09 00:23:07,381 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:23:07,382 INFO L158 Benchmark]: Toolchain (without parser) took 5343.63ms. Allocated memory was 130.0MB in the beginning and 199.2MB in the end (delta: 69.2MB). Free memory was 65.9MB in the beginning and 155.3MB in the end (delta: -89.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:23:07,383 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory is still 101.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:23:07,383 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.10ms. Allocated memory was 130.0MB in the beginning and 165.7MB in the end (delta: 35.7MB). Free memory was 65.7MB in the beginning and 128.9MB in the end (delta: -63.2MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2024-11-09 00:23:07,388 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.87ms. Allocated memory is still 165.7MB. Free memory was 128.9MB in the beginning and 127.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:23:07,388 INFO L158 Benchmark]: Boogie Preprocessor took 18.21ms. Allocated memory is still 165.7MB. Free memory was 127.6MB in the beginning and 126.8MB in the end (delta: 805.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:23:07,389 INFO L158 Benchmark]: RCFGBuilder took 463.71ms. Allocated memory is still 165.7MB. Free memory was 126.8MB in the beginning and 132.9MB in the end (delta: -6.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 00:23:07,389 INFO L158 Benchmark]: CodeCheck took 4396.42ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 132.9MB in the beginning and 160.6MB in the end (delta: -27.6MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2024-11-09 00:23:07,389 INFO L158 Benchmark]: Witness Printer took 119.71ms. Allocated memory is still 199.2MB. Free memory was 159.5MB in the beginning and 155.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 00:23:07,395 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, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.9s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 159 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 175 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 66 mSDsCounter, 138 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 285 IncrementalHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 138 mSolverCounterUnsat, 109 mSDtfsCounter, 285 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 743 GetRequests, 680 SyntacticMatches, 3 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 950 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 248 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 19/34 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: 27]: 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: 16]: Procedure Contract for id2 Derived contract for procedure id2. Ensures: (((\result == 2) || (\result == 0)) || (\result == 1)) - ProcedureContractResult [Line: 9]: Procedure Contract for id Derived contract for procedure id. Ensures: (((\result == 0) || (\result == 1)) || (2 == \result)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory is still 101.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 307.10ms. Allocated memory was 130.0MB in the beginning and 165.7MB in the end (delta: 35.7MB). Free memory was 65.7MB in the beginning and 128.9MB in the end (delta: -63.2MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.87ms. Allocated memory is still 165.7MB. Free memory was 128.9MB in the beginning and 127.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.21ms. Allocated memory is still 165.7MB. Free memory was 127.6MB in the beginning and 126.8MB in the end (delta: 805.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 463.71ms. Allocated memory is still 165.7MB. Free memory was 126.8MB in the beginning and 132.9MB in the end (delta: -6.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 4396.42ms. Allocated memory was 165.7MB in the beginning and 199.2MB in the end (delta: 33.6MB). Free memory was 132.9MB in the beginning and 160.6MB in the end (delta: -27.6MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Witness Printer took 119.71ms. Allocated memory is still 199.2MB. Free memory was 159.5MB in the beginning and 155.3MB 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! [2024-11-09 00:23:07,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45078128-7cf0-4c7f-b7b7-ea373be75dbb/bin/ukojak-verify-ImItNfHLgk/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 Result: TRUE