./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id_b3_o2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0920a443-2dad-4136-abc0-5e5c10aa6570/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0920a443-2dad-4136-abc0-5e5c10aa6570/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0920a443-2dad-4136-abc0-5e5c10aa6570/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0920a443-2dad-4136-abc0-5e5c10aa6570/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_b3_o2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0920a443-2dad-4136-abc0-5e5c10aa6570/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0920a443-2dad-4136-abc0-5e5c10aa6570/bin/ukojak-verify-EEHR8qb7sm --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 18afe523baca40cb7d279a05e0d0a8c37efda6f4bcc6a4be698eb3701f39ab37 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 20:43:00,073 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 20:43:00,206 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0920a443-2dad-4136-abc0-5e5c10aa6570/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 20:43:00,216 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 20:43:00,219 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 20:43:00,268 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 20:43:00,271 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 20:43:00,272 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 20:43:00,272 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 20:43:00,273 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 20:43:00,275 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 20:43:00,275 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 20:43:00,275 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 20:43:00,275 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 20:43:00,276 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 20:43:00,276 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 20:43:00,276 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 20:43:00,276 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 20:43:00,276 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 20:43:00,276 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 20:43:00,277 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 20:43:00,277 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 20:43:00,277 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 20:43:00,277 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 20:43:00,277 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 20:43:00,278 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 20:43:00,278 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 20:43:00,278 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:43:00,278 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 20:43:00,278 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 20:43:00,279 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 20:43:00,279 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 20:43:00,279 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 20:43:00,279 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_0920a443-2dad-4136-abc0-5e5c10aa6570/bin/ukojak-verify-EEHR8qb7sm 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 -> 18afe523baca40cb7d279a05e0d0a8c37efda6f4bcc6a4be698eb3701f39ab37 [2024-11-13 20:43:00,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 20:43:00,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 20:43:00,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 20:43:00,684 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 20:43:00,684 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 20:43:00,687 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0920a443-2dad-4136-abc0-5e5c10aa6570/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/recursive-simple/id_b3_o2-2.c Unable to find full path for "g++" [2024-11-13 20:43:03,215 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 20:43:03,702 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 20:43:03,707 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0920a443-2dad-4136-abc0-5e5c10aa6570/sv-benchmarks/c/recursive-simple/id_b3_o2-2.c [2024-11-13 20:43:03,720 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0920a443-2dad-4136-abc0-5e5c10aa6570/bin/ukojak-verify-EEHR8qb7sm/data/6685960ab/e9709c5a51ff47fc853666f45da1eefa/FLAG7abf26a69 [2024-11-13 20:43:03,832 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0920a443-2dad-4136-abc0-5e5c10aa6570/bin/ukojak-verify-EEHR8qb7sm/data/6685960ab/e9709c5a51ff47fc853666f45da1eefa [2024-11-13 20:43:03,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 20:43:03,841 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 20:43:03,844 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 20:43:03,844 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 20:43:03,850 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 20:43:03,853 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:43:03" (1/1) ... [2024-11-13 20:43:03,854 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71135f6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:43:03, skipping insertion in model container [2024-11-13 20:43:03,854 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:43:03" (1/1) ... [2024-11-13 20:43:03,877 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 20:43:04,120 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_0920a443-2dad-4136-abc0-5e5c10aa6570/sv-benchmarks/c/recursive-simple/id_b3_o2-2.c[528,541] [2024-11-13 20:43:04,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:43:04,144 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 20:43:04,167 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_0920a443-2dad-4136-abc0-5e5c10aa6570/sv-benchmarks/c/recursive-simple/id_b3_o2-2.c[528,541] [2024-11-13 20:43:04,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:43:04,188 INFO L204 MainTranslator]: Completed translation [2024-11-13 20:43:04,189 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:43:04 WrapperNode [2024-11-13 20:43:04,189 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 20:43:04,191 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 20:43:04,191 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 20:43:04,191 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 20:43:04,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:43:04" (1/1) ... [2024-11-13 20:43:04,209 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:43:04" (1/1) ... [2024-11-13 20:43:04,225 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2024-11-13 20:43:04,226 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 20:43:04,227 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 20:43:04,227 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 20:43:04,227 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 20:43:04,235 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:43:04" (1/1) ... [2024-11-13 20:43:04,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:43:04" (1/1) ... [2024-11-13 20:43:04,236 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:43:04" (1/1) ... [2024-11-13 20:43:04,236 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:43:04" (1/1) ... [2024-11-13 20:43:04,239 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:43:04" (1/1) ... [2024-11-13 20:43:04,241 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:43:04" (1/1) ... [2024-11-13 20:43:04,242 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:43:04" (1/1) ... [2024-11-13 20:43:04,242 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:43:04" (1/1) ... [2024-11-13 20:43:04,244 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 20:43:04,245 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 20:43:04,245 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 20:43:04,245 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 20:43:04,246 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:43:04" (1/1) ... [2024-11-13 20:43:04,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:43:04,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0920a443-2dad-4136-abc0-5e5c10aa6570/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 20:43:04,293 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0920a443-2dad-4136-abc0-5e5c10aa6570/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 20:43:04,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0920a443-2dad-4136-abc0-5e5c10aa6570/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 20:43:04,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 20:43:04,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 20:43:04,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 20:43:04,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 20:43:04,341 INFO L130 BoogieDeclarations]: Found specification of procedure id [2024-11-13 20:43:04,342 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2024-11-13 20:43:04,433 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 20:43:04,435 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 20:43:04,575 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-13 20:43:04,575 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 20:43:04,621 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 20:43:04,621 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 20:43:04,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:43:04 BoogieIcfgContainer [2024-11-13 20:43:04,622 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 20:43:04,623 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 20:43:04,623 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 20:43:04,635 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 20:43:04,635 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:43:04" (1/1) ... [2024-11-13 20:43:04,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 20:43:04,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:43:04,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2024-11-13 20:43:04,717 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-11-13 20:43:04,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 20:43:04,725 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:43:04,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:43:04,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:43:05,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:43:05,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:43:05,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2024-11-13 20:43:05,161 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-11-13 20:43:05,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-13 20:43:05,164 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:43:05,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:43:05,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:43:05,597 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 20:43:06,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:43:06,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2024-11-13 20:43:06,062 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2024-11-13 20:43:06,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 20:43:06,064 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:43:06,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:43:06,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:43:06,136 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:43:06,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:43:06,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:43:06,248 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:43:06,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:43:06,284 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2024-11-13 20:43:06,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 08:43:06 ImpRootNode [2024-11-13 20:43:06,323 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 20:43:06,324 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 20:43:06,325 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 20:43:06,325 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 20:43:06,326 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:43:04" (3/4) ... [2024-11-13 20:43:06,328 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 20:43:06,392 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0920a443-2dad-4136-abc0-5e5c10aa6570/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 20:43:06,396 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 20:43:06,397 INFO L158 Benchmark]: Toolchain (without parser) took 2556.34ms. Allocated memory is still 167.8MB. Free memory was 130.3MB in the beginning and 122.3MB in the end (delta: 8.0MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. [2024-11-13 20:43:06,398 INFO L158 Benchmark]: CDTParser took 1.23ms. Allocated memory is still 167.8MB. Free memory is still 105.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:43:06,398 INFO L158 Benchmark]: CACSL2BoogieTranslator took 346.26ms. Allocated memory is still 167.8MB. Free memory was 130.3MB in the beginning and 119.8MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 20:43:06,399 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.70ms. Allocated memory is still 167.8MB. Free memory was 119.8MB in the beginning and 118.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:43:06,402 INFO L158 Benchmark]: Boogie Preprocessor took 17.06ms. Allocated memory is still 167.8MB. Free memory was 118.7MB in the beginning and 118.1MB in the end (delta: 632.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:43:06,403 INFO L158 Benchmark]: RCFGBuilder took 377.07ms. Allocated memory is still 167.8MB. Free memory was 118.1MB in the beginning and 107.5MB in the end (delta: 10.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 20:43:06,403 INFO L158 Benchmark]: CodeCheck took 1700.17ms. Allocated memory is still 167.8MB. Free memory was 107.2MB in the beginning and 124.0MB in the end (delta: -16.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:43:06,404 INFO L158 Benchmark]: Witness Printer took 71.88ms. Allocated memory is still 167.8MB. Free memory was 124.0MB in the beginning and 122.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:43:06,406 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: 1.6s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 46 IncrementalHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 26 mSDtfsCounter, 46 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 172 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 48 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 2/4 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 - CounterExampleResult [Line: 17]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L14] int input = __VERIFIER_nondet_int(); [L15] CALL, EXPR id(input) VAL [\old(x)=2] [L7] COND FALSE !(x==0) VAL [\old(x)=2, x=2] [L8] CALL, EXPR id((unsigned int)x-1) VAL [\old(x)=1] [L7] COND FALSE !(x==0) VAL [\old(x)=1, x=1] [L8] CALL, EXPR id((unsigned int)x-1) VAL [\old(x)=0] [L7] COND TRUE x==0 [L7] return 0; VAL [\old(x)=0, \result=0] [L8] RET, EXPR id((unsigned int)x-1) VAL [\old(x)=1, x=1] [L8] int ret = id((unsigned int)x-1) + 1; [L9] COND FALSE !(ret > 3) [L10] return ret; VAL [\old(x)=1, \result=1, x=1] [L8] RET, EXPR id((unsigned int)x-1) VAL [\old(x)=2, x=2] [L8] int ret = id((unsigned int)x-1) + 1; [L9] COND FALSE !(ret > 3) [L10] return ret; VAL [\old(x)=2, \result=2, x=2] [L15] RET, EXPR id(input) VAL [input=2] [L15] int result = id(input); [L16] COND TRUE result == 2 VAL [input=2] [L17] reach_error() VAL [input=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.23ms. Allocated memory is still 167.8MB. Free memory is still 105.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 346.26ms. Allocated memory is still 167.8MB. Free memory was 130.3MB in the beginning and 119.8MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.70ms. Allocated memory is still 167.8MB. Free memory was 119.8MB in the beginning and 118.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.06ms. Allocated memory is still 167.8MB. Free memory was 118.7MB in the beginning and 118.1MB in the end (delta: 632.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 377.07ms. Allocated memory is still 167.8MB. Free memory was 118.1MB in the beginning and 107.5MB in the end (delta: 10.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1700.17ms. Allocated memory is still 167.8MB. Free memory was 107.2MB in the beginning and 124.0MB in the end (delta: -16.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 71.88ms. Allocated memory is still 167.8MB. Free memory was 124.0MB in the beginning and 122.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 20:43:06,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0920a443-2dad-4136-abc0-5e5c10aa6570/bin/ukojak-verify-EEHR8qb7sm/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