./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/afterrec-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625efbc0-ccd9-4296-9def-08af7035832c/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625efbc0-ccd9-4296-9def-08af7035832c/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625efbc0-ccd9-4296-9def-08af7035832c/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625efbc0-ccd9-4296-9def-08af7035832c/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/afterrec-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625efbc0-ccd9-4296-9def-08af7035832c/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625efbc0-ccd9-4296-9def-08af7035832c/bin/ukojak-verify-G8NBE6pJGL --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 bd3dbeb1201d252c8f1e3c61a135802ff8f8ccfcc09353f09b9750e3ee951591 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:18:49,605 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:18:49,677 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625efbc0-ccd9-4296-9def-08af7035832c/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:18:49,683 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:18:49,683 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:18:49,711 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:18:49,712 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:18:49,713 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:18:49,714 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:18:49,714 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:18:49,715 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:18:49,716 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:18:49,716 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:18:49,717 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:18:49,718 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:18:49,718 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:18:49,719 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:18:49,719 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:18:49,720 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:18:49,720 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:18:49,721 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:18:49,722 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:18:49,722 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:18:49,723 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:18:49,723 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:18:49,724 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:18:49,724 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:18:49,725 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:18:49,725 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:18:49,725 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:18:49,726 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:18:49,726 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:18:49,727 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:18:49,727 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625efbc0-ccd9-4296-9def-08af7035832c/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625efbc0-ccd9-4296-9def-08af7035832c/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd3dbeb1201d252c8f1e3c61a135802ff8f8ccfcc09353f09b9750e3ee951591 [2023-11-19 03:18:50,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:18:50,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:18:50,109 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:18:50,111 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:18:50,112 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:18:50,113 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625efbc0-ccd9-4296-9def-08af7035832c/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/recursive-simple/afterrec-1.c [2023-11-19 03:18:53,185 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:18:53,402 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:18:53,403 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625efbc0-ccd9-4296-9def-08af7035832c/sv-benchmarks/c/recursive-simple/afterrec-1.c [2023-11-19 03:18:53,437 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625efbc0-ccd9-4296-9def-08af7035832c/bin/ukojak-verify-G8NBE6pJGL/data/24c3ee5b9/be11b0ce205b4d0598c20dd86a846013/FLAG67bbee207 [2023-11-19 03:18:53,455 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625efbc0-ccd9-4296-9def-08af7035832c/bin/ukojak-verify-G8NBE6pJGL/data/24c3ee5b9/be11b0ce205b4d0598c20dd86a846013 [2023-11-19 03:18:53,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:18:53,463 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:18:53,465 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:18:53,466 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:18:53,471 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:18:53,474 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:18:53" (1/1) ... [2023-11-19 03:18:53,477 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66427c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:53, skipping insertion in model container [2023-11-19 03:18:53,477 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:18:53" (1/1) ... [2023-11-19 03:18:53,503 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:18:53,662 WARN L240 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_625efbc0-ccd9-4296-9def-08af7035832c/sv-benchmarks/c/recursive-simple/afterrec-1.c[318,331] [2023-11-19 03:18:53,667 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:18:53,677 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:18:53,687 WARN L240 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_625efbc0-ccd9-4296-9def-08af7035832c/sv-benchmarks/c/recursive-simple/afterrec-1.c[318,331] [2023-11-19 03:18:53,688 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:18:53,701 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:18:53,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:53 WrapperNode [2023-11-19 03:18:53,701 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:18:53,702 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:18:53,702 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:18:53,703 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:18:53,710 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:53" (1/1) ... [2023-11-19 03:18:53,715 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:53" (1/1) ... [2023-11-19 03:18:53,727 INFO L138 Inliner]: procedures = 12, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 10 [2023-11-19 03:18:53,728 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:18:53,728 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:18:53,728 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:18:53,729 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:18:53,735 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:53" (1/1) ... [2023-11-19 03:18:53,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:53" (1/1) ... [2023-11-19 03:18:53,736 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:53" (1/1) ... [2023-11-19 03:18:53,737 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:53" (1/1) ... [2023-11-19 03:18:53,739 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:53" (1/1) ... [2023-11-19 03:18:53,741 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:53" (1/1) ... [2023-11-19 03:18:53,741 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:53" (1/1) ... [2023-11-19 03:18:53,742 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:53" (1/1) ... [2023-11-19 03:18:53,743 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:18:53,744 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:18:53,745 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:18:53,745 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:18:53,745 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:18:53" (1/1) ... [2023-11-19 03:18:53,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:18:53,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625efbc0-ccd9-4296-9def-08af7035832c/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:18:53,778 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625efbc0-ccd9-4296-9def-08af7035832c/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:18:53,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625efbc0-ccd9-4296-9def-08af7035832c/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:18:53,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:18:53,820 INFO L130 BoogieDeclarations]: Found specification of procedure f [2023-11-19 03:18:53,820 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2023-11-19 03:18:53,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:18:53,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:18:53,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:18:53,875 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:18:53,877 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:18:53,972 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:18:53,988 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:18:53,988 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:18:53,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:18:53 BoogieIcfgContainer [2023-11-19 03:18:53,993 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:18:53,994 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:18:53,994 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:18:54,010 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:18:54,011 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:18:53" (1/1) ... [2023-11-19 03:18:54,020 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:18:54,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:18:54,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2023-11-19 03:18:54,096 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2023-11-19 03:18:54,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 03:18:54,101 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:18:54,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:18:54,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:18:54,220 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:18:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:18:54,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:18:54,341 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:18:54,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:18:54,369 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-19 03:18:54,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:18:54 ImpRootNode [2023-11-19 03:18:54,394 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:18:54,397 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:18:54,397 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:18:54,398 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:18:54,399 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:18:53" (3/4) ... [2023-11-19 03:18:54,402 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 03:18:54,465 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625efbc0-ccd9-4296-9def-08af7035832c/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:18:54,465 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:18:54,471 INFO L158 Benchmark]: Toolchain (without parser) took 1003.85ms. Allocated memory is still 182.5MB. Free memory was 152.9MB in the beginning and 138.2MB in the end (delta: 14.7MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2023-11-19 03:18:54,472 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 134.2MB. Free memory was 106.8MB in the beginning and 106.7MB in the end (delta: 73.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:18:54,473 INFO L158 Benchmark]: CACSL2BoogieTranslator took 236.05ms. Allocated memory is still 182.5MB. Free memory was 152.7MB in the beginning and 146.6MB in the end (delta: 6.1MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2023-11-19 03:18:54,474 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.72ms. Allocated memory is still 182.5MB. Free memory was 146.6MB in the beginning and 145.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:18:54,474 INFO L158 Benchmark]: Boogie Preprocessor took 15.22ms. Allocated memory is still 182.5MB. Free memory was 145.2MB in the beginning and 144.4MB in the end (delta: 809.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:18:54,475 INFO L158 Benchmark]: RCFGBuilder took 248.57ms. Allocated memory is still 182.5MB. Free memory was 144.4MB in the beginning and 134.7MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 03:18:54,475 INFO L158 Benchmark]: CodeCheck took 400.30ms. Allocated memory is still 182.5MB. Free memory was 134.7MB in the beginning and 140.1MB in the end (delta: -5.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:18:54,476 INFO L158 Benchmark]: Witness Printer took 68.92ms. Allocated memory is still 182.5MB. Free memory was 140.1MB in the beginning and 138.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:18:54,478 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, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 9]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L13] CALL f(4) VAL [\old(n)=4] [L6] COND FALSE !(n<3) [L7] n-- VAL [\old(n)=4, n=3] [L8] CALL f(n) VAL [\old(n)=3] [L6] COND FALSE !(n<3) [L7] n-- VAL [\old(n)=3, n=2] [L8] CALL f(n) VAL [\old(n)=2] [L6] COND TRUE n<3 VAL [\old(n)=2, n=2] [L8] RET f(n) VAL [\old(n)=3, n=2] [L9] reach_error() VAL [\old(n)=3, n=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 134.2MB. Free memory was 106.8MB in the beginning and 106.7MB in the end (delta: 73.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 236.05ms. Allocated memory is still 182.5MB. Free memory was 152.7MB in the beginning and 146.6MB in the end (delta: 6.1MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.72ms. Allocated memory is still 182.5MB. Free memory was 146.6MB in the beginning and 145.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.22ms. Allocated memory is still 182.5MB. Free memory was 145.2MB in the beginning and 144.4MB in the end (delta: 809.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 248.57ms. Allocated memory is still 182.5MB. Free memory was 144.4MB in the beginning and 134.7MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 400.30ms. Allocated memory is still 182.5MB. Free memory was 134.7MB in the beginning and 140.1MB in the end (delta: -5.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 68.92ms. Allocated memory is still 182.5MB. Free memory was 140.1MB in the beginning and 138.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 03:18:54,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625efbc0-ccd9-4296-9def-08af7035832c/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, 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