./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id_o20.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_ace0ba6d-cd1d-44d7-8a73-71ab98bfa9e9/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ace0ba6d-cd1d-44d7-8a73-71ab98bfa9e9/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_ace0ba6d-cd1d-44d7-8a73-71ab98bfa9e9/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ace0ba6d-cd1d-44d7-8a73-71ab98bfa9e9/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_o20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ace0ba6d-cd1d-44d7-8a73-71ab98bfa9e9/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_ace0ba6d-cd1d-44d7-8a73-71ab98bfa9e9/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 78daae7f2fbb1fbd12685beb952877b8686cc8bc3d2c7fcd55d0c5d2b019aa0d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 00:21:26,819 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 00:21:26,878 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ace0ba6d-cd1d-44d7-8a73-71ab98bfa9e9/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 00:21:26,882 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 00:21:26,882 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 00:21:26,902 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 00:21:26,903 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 00:21:26,903 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 00:21:26,904 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 00:21:26,904 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 00:21:26,904 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 00:21:26,904 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 00:21:26,904 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 00:21:26,904 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 00:21:26,904 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 00:21:26,905 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 00:21:26,905 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 00:21:26,905 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 00:21:26,905 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 00:21:26,905 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 00:21:26,905 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 00:21:26,905 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 00:21:26,905 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 00:21:26,905 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 00:21:26,905 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 00:21:26,905 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 00:21:26,905 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 00:21:26,906 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:21:26,906 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 00:21:26,906 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 00:21:26,906 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 00:21:26,906 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 00:21:26,906 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 00:21:26,906 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_ace0ba6d-cd1d-44d7-8a73-71ab98bfa9e9/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 -> 78daae7f2fbb1fbd12685beb952877b8686cc8bc3d2c7fcd55d0c5d2b019aa0d [2024-12-06 00:21:27,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 00:21:27,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 00:21:27,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 00:21:27,156 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 00:21:27,157 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 00:21:27,158 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ace0ba6d-cd1d-44d7-8a73-71ab98bfa9e9/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/recursive-simple/id_o20.c [2024-12-06 00:21:29,748 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ace0ba6d-cd1d-44d7-8a73-71ab98bfa9e9/bin/ukojak-verify-CZk0znPC7b/data/29e0183eb/cc0fbbc69d80408b81ed0aa48d294eea/FLAG5f4cf3428 [2024-12-06 00:21:29,925 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 00:21:29,926 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ace0ba6d-cd1d-44d7-8a73-71ab98bfa9e9/sv-benchmarks/c/recursive-simple/id_o20.c [2024-12-06 00:21:29,932 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ace0ba6d-cd1d-44d7-8a73-71ab98bfa9e9/bin/ukojak-verify-CZk0znPC7b/data/29e0183eb/cc0fbbc69d80408b81ed0aa48d294eea/FLAG5f4cf3428 [2024-12-06 00:21:30,314 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ace0ba6d-cd1d-44d7-8a73-71ab98bfa9e9/bin/ukojak-verify-CZk0znPC7b/data/29e0183eb/cc0fbbc69d80408b81ed0aa48d294eea [2024-12-06 00:21:30,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 00:21:30,317 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 00:21:30,319 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 00:21:30,319 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 00:21:30,322 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 00:21:30,322 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:21:30" (1/1) ... [2024-12-06 00:21:30,323 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53e5df13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:30, skipping insertion in model container [2024-12-06 00:21:30,323 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:21:30" (1/1) ... [2024-12-06 00:21:30,332 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 00:21:30,432 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_ace0ba6d-cd1d-44d7-8a73-71ab98bfa9e9/sv-benchmarks/c/recursive-simple/id_o20.c[516,529] [2024-12-06 00:21:30,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:21:30,442 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 00:21:30,451 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_ace0ba6d-cd1d-44d7-8a73-71ab98bfa9e9/sv-benchmarks/c/recursive-simple/id_o20.c[516,529] [2024-12-06 00:21:30,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:21:30,461 INFO L204 MainTranslator]: Completed translation [2024-12-06 00:21:30,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:30 WrapperNode [2024-12-06 00:21:30,462 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 00:21:30,462 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 00:21:30,463 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 00:21:30,463 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 00:21:30,467 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:30" (1/1) ... [2024-12-06 00:21:30,471 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:30" (1/1) ... [2024-12-06 00:21:30,480 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2024-12-06 00:21:30,480 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 00:21:30,481 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 00:21:30,481 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 00:21:30,481 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 00:21:30,485 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:30" (1/1) ... [2024-12-06 00:21:30,486 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:30" (1/1) ... [2024-12-06 00:21:30,486 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:30" (1/1) ... [2024-12-06 00:21:30,486 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:30" (1/1) ... [2024-12-06 00:21:30,488 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:30" (1/1) ... [2024-12-06 00:21:30,489 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:30" (1/1) ... [2024-12-06 00:21:30,490 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:30" (1/1) ... [2024-12-06 00:21:30,490 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:30" (1/1) ... [2024-12-06 00:21:30,490 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:30" (1/1) ... [2024-12-06 00:21:30,491 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 00:21:30,492 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 00:21:30,492 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 00:21:30,492 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 00:21:30,493 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:21:30" (1/1) ... [2024-12-06 00:21:30,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:21:30,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ace0ba6d-cd1d-44d7-8a73-71ab98bfa9e9/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 00:21:30,516 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ace0ba6d-cd1d-44d7-8a73-71ab98bfa9e9/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 00:21:30,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ace0ba6d-cd1d-44d7-8a73-71ab98bfa9e9/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 00:21:30,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 00:21:30,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 00:21:30,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 00:21:30,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 00:21:30,542 INFO L130 BoogieDeclarations]: Found specification of procedure id [2024-12-06 00:21:30,542 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2024-12-06 00:21:30,583 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 00:21:30,585 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 00:21:30,652 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-12-06 00:21:30,652 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 00:21:30,666 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 00:21:30,667 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 00:21:30,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:21:30 BoogieIcfgContainer [2024-12-06 00:21:30,667 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 00:21:30,667 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 00:21:30,668 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 00:21:30,675 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 00:21:30,675 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:21:30" (1/1) ... [2024-12-06 00:21:30,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 00:21:30,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:21:30,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2024-12-06 00:21:30,724 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-12-06 00:21:30,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 00:21:30,727 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:21:30,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:21:30,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:21:30,927 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 00:21:31,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:21:31,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2024-12-06 00:21:31,004 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-12-06 00:21:31,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-06 00:21:31,004 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:21:31,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:21:31,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:21:31,207 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 00:21:31,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:21:31,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2024-12-06 00:21:31,424 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2024-12-06 00:21:31,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-12-06 00:21:31,425 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:21:31,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:21:31,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:21:31,631 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-06 00:21:31,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:21:31,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 28 states and 33 transitions. [2024-12-06 00:21:31,945 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2024-12-06 00:21:31,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-12-06 00:21:31,945 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:21:31,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:21:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:21:32,169 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-12-06 00:21:32,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:21:32,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 33 states and 39 transitions. [2024-12-06 00:21:32,569 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2024-12-06 00:21:32,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-12-06 00:21:32,570 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:21:32,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:21:32,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:21:32,820 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-12-06 00:21:33,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:21:33,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 38 states and 45 transitions. [2024-12-06 00:21:33,265 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2024-12-06 00:21:33,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-12-06 00:21:33,266 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:21:33,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:21:33,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:21:33,553 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-12-06 00:21:34,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:21:34,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 43 states and 51 transitions. [2024-12-06 00:21:34,064 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2024-12-06 00:21:34,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-12-06 00:21:34,065 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:21:34,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:21:34,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:21:34,376 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-12-06 00:21:34,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:21:34,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 48 states and 57 transitions. [2024-12-06 00:21:34,949 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2024-12-06 00:21:34,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-12-06 00:21:34,950 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:21:34,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:21:34,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:21:35,321 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-12-06 00:21:36,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:21:36,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 53 states and 63 transitions. [2024-12-06 00:21:36,036 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2024-12-06 00:21:36,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-12-06 00:21:36,037 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:21:36,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:21:36,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:21:36,421 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-12-06 00:21:37,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:21:37,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 58 states and 69 transitions. [2024-12-06 00:21:37,178 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2024-12-06 00:21:37,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-12-06 00:21:37,179 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:21:37,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:21:37,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:21:37,667 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-12-06 00:21:38,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:21:38,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 63 states and 75 transitions. [2024-12-06 00:21:38,509 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2024-12-06 00:21:38,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-06 00:21:38,510 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:21:38,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:21:38,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:21:38,955 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2024-12-06 00:21:39,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:21:39,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 68 states and 81 transitions. [2024-12-06 00:21:39,890 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 81 transitions. [2024-12-06 00:21:39,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-12-06 00:21:39,891 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:21:39,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:21:39,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:21:40,399 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-12-06 00:21:41,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:21:41,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 73 states and 87 transitions. [2024-12-06 00:21:41,465 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 87 transitions. [2024-12-06 00:21:41,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-06 00:21:41,466 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:21:41,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:21:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:21:42,072 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2024-12-06 00:21:43,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:21:43,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 78 states and 93 transitions. [2024-12-06 00:21:43,187 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 93 transitions. [2024-12-06 00:21:43,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-06 00:21:43,188 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:21:43,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:21:43,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:21:43,758 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2024-12-06 00:21:45,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:21:45,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 83 states and 99 transitions. [2024-12-06 00:21:45,026 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 99 transitions. [2024-12-06 00:21:45,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-06 00:21:45,026 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:21:45,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:21:45,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:21:45,569 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2024-12-06 00:21:46,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:21:46,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 88 states and 105 transitions. [2024-12-06 00:21:46,864 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 105 transitions. [2024-12-06 00:21:46,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-06 00:21:46,865 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:21:46,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:21:46,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:21:47,485 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2024-12-06 00:21:49,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:21:49,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 93 states and 111 transitions. [2024-12-06 00:21:49,019 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 111 transitions. [2024-12-06 00:21:49,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-12-06 00:21:49,020 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:21:49,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:21:49,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:21:49,829 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-12-06 00:21:51,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:21:51,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 98 states and 117 transitions. [2024-12-06 00:21:51,387 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 117 transitions. [2024-12-06 00:21:51,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-06 00:21:51,387 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:21:51,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:21:51,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:21:52,056 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2024-12-06 00:21:53,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:21:53,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 103 states and 123 transitions. [2024-12-06 00:21:53,714 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 123 transitions. [2024-12-06 00:21:53,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-12-06 00:21:53,715 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:21:53,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:21:53,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:21:54,534 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2024-12-06 00:21:56,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:21:56,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 108 states and 129 transitions. [2024-12-06 00:21:56,492 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 129 transitions. [2024-12-06 00:21:56,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-06 00:21:56,493 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:21:56,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:21:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:21:57,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2024-12-06 00:21:59,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:21:59,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 113 states and 135 transitions. [2024-12-06 00:21:59,393 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 135 transitions. [2024-12-06 00:21:59,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-12-06 00:21:59,394 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:21:59,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:21:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:21:59,476 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 00:21:59,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:21:59,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:21:59,633 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 00:21:59,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:21:59,701 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 21 iterations. [2024-12-06 00:21:59,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 12:21:59 ImpRootNode [2024-12-06 00:21:59,737 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 00:21:59,738 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 00:21:59,738 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 00:21:59,738 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 00:21:59,738 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:21:30" (3/4) ... [2024-12-06 00:21:59,739 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 00:21:59,784 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 65. [2024-12-06 00:21:59,854 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ace0ba6d-cd1d-44d7-8a73-71ab98bfa9e9/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 00:21:59,855 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ace0ba6d-cd1d-44d7-8a73-71ab98bfa9e9/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 00:21:59,855 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 00:21:59,856 INFO L158 Benchmark]: Toolchain (without parser) took 29538.20ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 117.3MB in the beginning and 184.3MB in the end (delta: -67.0MB). Peak memory consumption was 117.0MB. Max. memory is 16.1GB. [2024-12-06 00:21:59,856 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:21:59,857 INFO L158 Benchmark]: CACSL2BoogieTranslator took 143.45ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 106.8MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 00:21:59,857 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.06ms. Allocated memory is still 142.6MB. Free memory was 106.8MB in the beginning and 105.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:21:59,857 INFO L158 Benchmark]: Boogie Preprocessor took 10.57ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 105.1MB in the end (delta: 579.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:21:59,858 INFO L158 Benchmark]: RCFGBuilder took 174.94ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 95.3MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 00:21:59,858 INFO L158 Benchmark]: CodeCheck took 29069.54ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 95.3MB in the beginning and 192.6MB in the end (delta: -97.4MB). Peak memory consumption was 91.9MB. Max. memory is 16.1GB. [2024-12-06 00:21:59,858 INFO L158 Benchmark]: Witness Printer took 117.47ms. Allocated memory is still 327.2MB. Free memory was 192.6MB in the beginning and 184.3MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 00:21:59,860 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, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 29.0s, OverallIterations: 21, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 794 SdHoareTripleChecker+Valid, 6.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 420 mSDsluCounter, 1060 SdHoareTripleChecker+Invalid, 5.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 800 mSDsCounter, 2020 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4060 IncrementalHoareTripleChecker+Invalid, 6080 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2020 mSolverCounterUnsat, 260 mSDtfsCounter, 4060 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7075 GetRequests, 6767 SyntacticMatches, 0 SemanticMatches, 308 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34910 ImplicationChecksByTransitivity, 23.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.0s InterpolantComputationTime, 1449 NumberOfCodeBlocks, 1449 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1300 ConstructedInterpolants, 0 QuantifiedInterpolants, 2714 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 1 PerfectInterpolantSequences, 3800/7600 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: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L12] unsigned int input = __VERIFIER_nondet_uint(); [L13] CALL, EXPR id(input) VAL [\old(x)=20] [L7] COND FALSE !(x==0) VAL [\old(x)=20, x=20] [L8] CALL, EXPR id(x-1) VAL [\old(x)=19] [L7] COND FALSE !(x==0) VAL [\old(x)=19, x=19] [L8] CALL, EXPR id(x-1) VAL [\old(x)=18] [L7] COND FALSE !(x==0) VAL [\old(x)=18, x=18] [L8] CALL, EXPR id(x-1) VAL [\old(x)=17] [L7] COND FALSE !(x==0) VAL [\old(x)=17, x=17] [L8] CALL, EXPR id(x-1) VAL [\old(x)=16] [L7] COND FALSE !(x==0) VAL [\old(x)=16, x=16] [L8] CALL, EXPR id(x-1) VAL [\old(x)=15] [L7] COND FALSE !(x==0) VAL [\old(x)=15, x=15] [L8] CALL, EXPR id(x-1) VAL [\old(x)=14] [L7] COND FALSE !(x==0) VAL [\old(x)=14, x=14] [L8] CALL, EXPR id(x-1) VAL [\old(x)=13] [L7] COND FALSE !(x==0) VAL [\old(x)=13, x=13] [L8] CALL, EXPR id(x-1) VAL [\old(x)=12] [L7] COND FALSE !(x==0) VAL [\old(x)=12, x=12] [L8] CALL, EXPR id(x-1) VAL [\old(x)=11] [L7] COND FALSE !(x==0) VAL [\old(x)=11, x=11] [L8] CALL, EXPR id(x-1) VAL [\old(x)=10] [L7] COND FALSE !(x==0) VAL [\old(x)=10, x=10] [L8] CALL, EXPR id(x-1) VAL [\old(x)=9] [L7] COND FALSE !(x==0) VAL [\old(x)=9, x=9] [L8] CALL, EXPR id(x-1) VAL [\old(x)=8] [L7] COND FALSE !(x==0) VAL [\old(x)=8, x=8] [L8] CALL, EXPR id(x-1) VAL [\old(x)=7] [L7] COND FALSE !(x==0) VAL [\old(x)=7, x=7] [L8] CALL, EXPR id(x-1) VAL [\old(x)=6] [L7] COND FALSE !(x==0) VAL [\old(x)=6, x=6] [L8] CALL, EXPR id(x-1) VAL [\old(x)=5] [L7] COND FALSE !(x==0) VAL [\old(x)=5, x=5] [L8] CALL, EXPR id(x-1) VAL [\old(x)=4] [L7] COND FALSE !(x==0) VAL [\old(x)=4, x=4] [L8] CALL, EXPR id(x-1) VAL [\old(x)=3] [L7] COND FALSE !(x==0) VAL [\old(x)=3, x=3] [L8] CALL, EXPR id(x-1) VAL [\old(x)=2] [L7] COND FALSE !(x==0) VAL [\old(x)=2, x=2] [L8] CALL, EXPR id(x-1) VAL [\old(x)=1] [L7] COND FALSE !(x==0) VAL [\old(x)=1, x=1] [L8] CALL, EXPR id(x-1) VAL [\old(x)=0] [L7] COND TRUE x==0 [L7] return 0; VAL [\old(x)=0, \result=0] [L8] RET, EXPR id(x-1) VAL [\old(x)=1, x=1] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=2, x=2] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=3, x=3] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=4, x=4] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=5, x=5] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=6, x=6] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=7, x=7] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=8, x=8] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=9, x=9] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=10, x=10] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=11, x=11] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=12, x=12] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=13, x=13] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=14, x=14] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=15, x=15] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=16, x=16] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=17, x=17] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=18, x=18] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=19, x=19] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=20, x=20] [L8] return id(x-1) + 1; [L13] RET, EXPR id(input) VAL [input=20] [L13] unsigned int result = id(input); [L14] COND TRUE result == 20 VAL [input=20] [L15] reach_error() VAL [input=20] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 143.45ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 106.8MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.06ms. Allocated memory is still 142.6MB. Free memory was 106.8MB in the beginning and 105.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 10.57ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 105.1MB in the end (delta: 579.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 174.94ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 95.3MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 29069.54ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 95.3MB in the beginning and 192.6MB in the end (delta: -97.4MB). Peak memory consumption was 91.9MB. Max. memory is 16.1GB. * Witness Printer took 117.47ms. Allocated memory is still 327.2MB. Free memory was 192.6MB in the beginning and 184.3MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 00:21:59,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ace0ba6d-cd1d-44d7-8a73-71ab98bfa9e9/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