./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id_i15_o15-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d5e053-2a96-4108-895f-a90b144adc6d/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d5e053-2a96-4108-895f-a90b144adc6d/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_56d5e053-2a96-4108-895f-a90b144adc6d/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d5e053-2a96-4108-895f-a90b144adc6d/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_i15_o15-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d5e053-2a96-4108-895f-a90b144adc6d/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_56d5e053-2a96-4108-895f-a90b144adc6d/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 109f1b0f7b496206cc9c53b0a3b6a7c393044a874053b245259453c5fb39b930 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 23:14:13,678 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 23:14:13,729 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d5e053-2a96-4108-895f-a90b144adc6d/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-05 23:14:13,733 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 23:14:13,733 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 23:14:13,751 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 23:14:13,752 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 23:14:13,752 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 23:14:13,753 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 23:14:13,753 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 23:14:13,753 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 23:14:13,753 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 23:14:13,753 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 23:14:13,754 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 23:14:13,754 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 23:14:13,754 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 23:14:13,754 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 23:14:13,754 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 23:14:13,754 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 23:14:13,754 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 23:14:13,754 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 23:14:13,755 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 23:14:13,755 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 23:14:13,755 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 23:14:13,755 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 23:14:13,755 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 23:14:13,755 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 23:14:13,755 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:14:13,755 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 23:14:13,756 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 23:14:13,756 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 23:14:13,756 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 23:14:13,756 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 23:14:13,756 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_56d5e053-2a96-4108-895f-a90b144adc6d/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 -> 109f1b0f7b496206cc9c53b0a3b6a7c393044a874053b245259453c5fb39b930 [2024-12-05 23:14:13,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 23:14:13,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 23:14:13,965 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 23:14:13,966 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 23:14:13,966 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 23:14:13,967 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d5e053-2a96-4108-895f-a90b144adc6d/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/recursive-simple/id_i15_o15-2.c [2024-12-05 23:14:16,655 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d5e053-2a96-4108-895f-a90b144adc6d/bin/ukojak-verify-CZk0znPC7b/data/46a5a0079/2531fd7830864d0483ed3dccdc135701/FLAG956bcb5e6 [2024-12-05 23:14:16,817 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 23:14:16,818 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d5e053-2a96-4108-895f-a90b144adc6d/sv-benchmarks/c/recursive-simple/id_i15_o15-2.c [2024-12-05 23:14:16,823 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d5e053-2a96-4108-895f-a90b144adc6d/bin/ukojak-verify-CZk0znPC7b/data/46a5a0079/2531fd7830864d0483ed3dccdc135701/FLAG956bcb5e6 [2024-12-05 23:14:17,208 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d5e053-2a96-4108-895f-a90b144adc6d/bin/ukojak-verify-CZk0znPC7b/data/46a5a0079/2531fd7830864d0483ed3dccdc135701 [2024-12-05 23:14:17,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 23:14:17,212 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 23:14:17,213 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 23:14:17,213 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 23:14:17,218 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 23:14:17,219 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:14:17" (1/1) ... [2024-12-05 23:14:17,220 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42560ddd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:14:17, skipping insertion in model container [2024-12-05 23:14:17,220 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:14:17" (1/1) ... [2024-12-05 23:14:17,230 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 23:14:17,338 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_56d5e053-2a96-4108-895f-a90b144adc6d/sv-benchmarks/c/recursive-simple/id_i15_o15-2.c[454,467] [2024-12-05 23:14:17,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:14:17,349 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 23:14:17,358 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_56d5e053-2a96-4108-895f-a90b144adc6d/sv-benchmarks/c/recursive-simple/id_i15_o15-2.c[454,467] [2024-12-05 23:14:17,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:14:17,368 INFO L204 MainTranslator]: Completed translation [2024-12-05 23:14:17,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:14:17 WrapperNode [2024-12-05 23:14:17,369 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 23:14:17,370 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 23:14:17,370 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 23:14:17,370 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 23:14:17,376 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:14:17" (1/1) ... [2024-12-05 23:14:17,380 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:14:17" (1/1) ... [2024-12-05 23:14:17,390 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2024-12-05 23:14:17,390 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 23:14:17,391 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 23:14:17,391 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 23:14:17,391 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 23:14:17,396 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:14:17" (1/1) ... [2024-12-05 23:14:17,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:14:17" (1/1) ... [2024-12-05 23:14:17,396 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:14:17" (1/1) ... [2024-12-05 23:14:17,397 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:14:17" (1/1) ... [2024-12-05 23:14:17,399 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:14:17" (1/1) ... [2024-12-05 23:14:17,399 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:14:17" (1/1) ... [2024-12-05 23:14:17,400 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:14:17" (1/1) ... [2024-12-05 23:14:17,401 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:14:17" (1/1) ... [2024-12-05 23:14:17,401 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:14:17" (1/1) ... [2024-12-05 23:14:17,402 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 23:14:17,403 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 23:14:17,403 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 23:14:17,403 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 23:14:17,404 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:14:17" (1/1) ... [2024-12-05 23:14:17,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:14:17,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d5e053-2a96-4108-895f-a90b144adc6d/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 23:14:17,429 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d5e053-2a96-4108-895f-a90b144adc6d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 23:14:17,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d5e053-2a96-4108-895f-a90b144adc6d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 23:14:17,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 23:14:17,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 23:14:17,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 23:14:17,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 23:14:17,453 INFO L130 BoogieDeclarations]: Found specification of procedure id [2024-12-05 23:14:17,453 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2024-12-05 23:14:17,495 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 23:14:17,497 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 23:14:17,567 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-12-05 23:14:17,567 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 23:14:17,584 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 23:14:17,584 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-05 23:14:17,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:14:17 BoogieIcfgContainer [2024-12-05 23:14:17,585 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 23:14:17,586 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 23:14:17,586 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 23:14:17,594 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 23:14:17,594 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:14:17" (1/1) ... [2024-12-05 23:14:17,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 23:14:17,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:14:17,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2024-12-05 23:14:17,642 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-12-05 23:14:17,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-05 23:14:17,646 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:14:17,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:14:17,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:14:17,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:14:17,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:14:17,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 18 transitions. [2024-12-05 23:14:17,912 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-12-05 23:14:17,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-05 23:14:17,913 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:14:17,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:14:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:14:18,071 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 23:14:18,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:14:18,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 22 transitions. [2024-12-05 23:14:18,204 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2024-12-05 23:14:18,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-12-05 23:14:18,204 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:14:18,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:14:18,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:14:18,350 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-05 23:14:18,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:14:18,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 22 states and 25 transitions. [2024-12-05 23:14:18,503 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2024-12-05 23:14:18,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-12-05 23:14:18,504 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:14:18,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:14:18,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:14:18,628 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 20 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-05 23:14:18,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:14:18,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 25 states and 29 transitions. [2024-12-05 23:14:18,804 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2024-12-05 23:14:18,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-12-05 23:14:18,804 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:14:18,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:14:18,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:14:18,954 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 5 proven. 33 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-12-05 23:14:19,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:14:19,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 28 states and 32 transitions. [2024-12-05 23:14:19,136 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2024-12-05 23:14:19,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-12-05 23:14:19,137 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:14:19,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:14:19,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:14:19,280 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 7 proven. 49 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-05 23:14:19,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:14:19,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 31 states and 35 transitions. [2024-12-05 23:14:19,489 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2024-12-05 23:14:19,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-12-05 23:14:19,490 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:14:19,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:14:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:14:19,658 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 9 proven. 68 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-12-05 23:14:19,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:14:19,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 34 states and 38 transitions. [2024-12-05 23:14:19,883 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2024-12-05 23:14:19,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-12-05 23:14:19,885 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:14:19,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:14:19,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:14:20,093 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 11 proven. 90 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-12-05 23:14:20,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:14:20,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 37 states and 41 transitions. [2024-12-05 23:14:20,331 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2024-12-05 23:14:20,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-12-05 23:14:20,332 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:14:20,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:14:20,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:14:20,519 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 13 proven. 115 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-12-05 23:14:20,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:14:20,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 40 states and 44 transitions. [2024-12-05 23:14:20,764 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2024-12-05 23:14:20,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-12-05 23:14:20,765 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:14:20,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:14:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:14:20,975 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 15 proven. 143 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-12-05 23:14:21,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:14:21,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 43 states and 47 transitions. [2024-12-05 23:14:21,237 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2024-12-05 23:14:21,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-05 23:14:21,238 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:14:21,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:14:21,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:14:21,469 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 17 proven. 174 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-12-05 23:14:21,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:14:21,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 46 states and 50 transitions. [2024-12-05 23:14:21,750 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2024-12-05 23:14:21,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-12-05 23:14:21,751 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:14:21,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:14:21,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:14:21,996 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 19 proven. 208 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2024-12-05 23:14:22,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:14:22,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 49 states and 53 transitions. [2024-12-05 23:14:22,293 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2024-12-05 23:14:22,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-12-05 23:14:22,294 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:14:22,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:14:22,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:14:22,544 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 21 proven. 245 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-12-05 23:14:22,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:14:22,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 52 states and 56 transitions. [2024-12-05 23:14:22,852 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2024-12-05 23:14:22,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-12-05 23:14:22,852 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:14:22,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:14:22,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:14:23,134 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 23 proven. 285 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2024-12-05 23:14:23,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:14:23,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 55 states and 59 transitions. [2024-12-05 23:14:23,453 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2024-12-05 23:14:23,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-12-05 23:14:23,454 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:14:23,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:14:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:14:23,729 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 25 proven. 328 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2024-12-05 23:14:24,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:14:24,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 58 states and 62 transitions. [2024-12-05 23:14:24,053 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2024-12-05 23:14:24,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-05 23:14:24,054 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:14:24,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:14:24,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:14:24,073 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:14:24,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:14:24,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:14:24,163 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 23:14:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 23:14:24,218 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 16 iterations. [2024-12-05 23:14:24,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 11:14:24 ImpRootNode [2024-12-05 23:14:24,262 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 23:14:24,263 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 23:14:24,263 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 23:14:24,263 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 23:14:24,264 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:14:17" (3/4) ... [2024-12-05 23:14:24,264 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-05 23:14:24,306 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 50. [2024-12-05 23:14:24,368 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d5e053-2a96-4108-895f-a90b144adc6d/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-05 23:14:24,369 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d5e053-2a96-4108-895f-a90b144adc6d/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-05 23:14:24,369 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 23:14:24,370 INFO L158 Benchmark]: Toolchain (without parser) took 7157.94ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 93.1MB in the beginning and 201.4MB in the end (delta: -108.3MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2024-12-05 23:14:24,370 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 73.0MB in the end (delta: 87.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:14:24,370 INFO L158 Benchmark]: CACSL2BoogieTranslator took 156.22ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 82.3MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 23:14:24,370 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.77ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 81.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:14:24,371 INFO L158 Benchmark]: Boogie Preprocessor took 11.67ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 80.6MB in the end (delta: 580.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:14:24,371 INFO L158 Benchmark]: RCFGBuilder took 181.86ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 71.3MB in the end (delta: 9.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 23:14:24,371 INFO L158 Benchmark]: CodeCheck took 6676.53ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 71.3MB in the beginning and 206.4MB in the end (delta: -135.1MB). Peak memory consumption was 106.6MB. Max. memory is 16.1GB. [2024-12-05 23:14:24,372 INFO L158 Benchmark]: Witness Printer took 106.06ms. Allocated memory is still 234.9MB. Free memory was 206.4MB in the beginning and 201.4MB in the end (delta: 5.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:14:24,373 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: 6.6s, OverallIterations: 16, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 944 SdHoareTripleChecker+Valid, 5.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 517 mSDsluCounter, 1147 SdHoareTripleChecker+Invalid, 4.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 939 mSDsCounter, 576 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3958 IncrementalHoareTripleChecker+Invalid, 4534 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 576 mSolverCounterUnsat, 208 mSDtfsCounter, 3958 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9233 GetRequests, 8715 SyntacticMatches, 424 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3050 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 864 NumberOfCodeBlocks, 864 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 750 ConstructedInterpolants, 0 QuantifiedInterpolants, 2138 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 1 PerfectInterpolantSequences, 1379/3150 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] int input = 15; VAL [input=15] [L13] CALL, EXPR id(input) 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; [L13] RET, EXPR id(input) VAL [input=15] [L13] int result = id(input); [L14] COND TRUE result == 15 VAL [input=15] [L15] reach_error() VAL [input=15] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory was 73.1MB in the beginning and 73.0MB in the end (delta: 87.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 156.22ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 82.3MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.77ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 81.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 11.67ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 80.6MB in the end (delta: 580.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 181.86ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 71.3MB in the end (delta: 9.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 6676.53ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 71.3MB in the beginning and 206.4MB in the end (delta: -135.1MB). Peak memory consumption was 106.6MB. Max. memory is 16.1GB. * Witness Printer took 106.06ms. Allocated memory is still 234.9MB. Free memory was 206.4MB in the beginning and 201.4MB in the end (delta: 5.0MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-05 23:14:24,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56d5e053-2a96-4108-895f-a90b144adc6d/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