./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/NestedRecursion_1a-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows 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_e18b5426-cda8-4bcb-bb9d-ca26816ba6ef/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18b5426-cda8-4bcb-bb9d-ca26816ba6ef/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_e18b5426-cda8-4bcb-bb9d-ca26816ba6ef/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18b5426-cda8-4bcb-bb9d-ca26816ba6ef/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/NestedRecursion_1a-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18b5426-cda8-4bcb-bb9d-ca26816ba6ef/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18b5426-cda8-4bcb-bb9d-ca26816ba6ef/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c86bd149cf8dcec56d0b62aefda03e866c4e374070f20ea19c317a4fa78bf8c1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:14:50,090 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:14:50,156 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18b5426-cda8-4bcb-bb9d-ca26816ba6ef/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 03:14:50,162 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:14:50,162 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:14:50,188 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:14:50,189 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:14:50,189 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:14:50,190 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:14:50,191 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:14:50,192 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:14:50,192 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:14:50,193 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:14:50,194 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:14:50,194 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:14:50,195 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:14:50,196 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:14:50,196 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:14:50,197 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:14:50,198 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:14:50,198 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:14:50,199 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:14:50,200 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:14:50,200 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:14:50,201 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:14:50,202 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:14:50,202 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:14:50,203 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:14:50,203 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:14:50,204 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:14:50,204 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:14:50,205 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:14:50,206 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_e18b5426-cda8-4bcb-bb9d-ca26816ba6ef/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18b5426-cda8-4bcb-bb9d-ca26816ba6ef/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c86bd149cf8dcec56d0b62aefda03e866c4e374070f20ea19c317a4fa78bf8c1 [2023-11-19 03:14:50,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:14:50,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:14:50,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:14:50,567 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:14:50,568 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:14:50,569 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18b5426-cda8-4bcb-bb9d-ca26816ba6ef/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/termination-crafted/NestedRecursion_1a-1.c [2023-11-19 03:14:53,607 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:14:53,806 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:14:53,807 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18b5426-cda8-4bcb-bb9d-ca26816ba6ef/sv-benchmarks/c/termination-crafted/NestedRecursion_1a-1.c [2023-11-19 03:14:53,814 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18b5426-cda8-4bcb-bb9d-ca26816ba6ef/bin/ukojak-verify-G8NBE6pJGL/data/e187239e5/c7e90e51dfb04def82d669ffe957d9cd/FLAG2f25225ee [2023-11-19 03:14:53,829 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18b5426-cda8-4bcb-bb9d-ca26816ba6ef/bin/ukojak-verify-G8NBE6pJGL/data/e187239e5/c7e90e51dfb04def82d669ffe957d9cd [2023-11-19 03:14:53,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:14:53,833 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:14:53,835 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:14:53,835 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:14:53,840 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:14:53,841 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:14:53" (1/1) ... [2023-11-19 03:14:53,842 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66ede902 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:53, skipping insertion in model container [2023-11-19 03:14:53,842 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:14:53" (1/1) ... [2023-11-19 03:14:53,860 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:14:54,011 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:14:54,017 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:14:54,029 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:14:54,042 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:14:54,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:54 WrapperNode [2023-11-19 03:14:54,042 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:14:54,043 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:14:54,044 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:14:54,044 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:14:54,051 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:54" (1/1) ... [2023-11-19 03:14:54,055 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:54" (1/1) ... [2023-11-19 03:14:54,071 INFO L138 Inliner]: procedures = 6, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 9 [2023-11-19 03:14:54,071 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:14:54,072 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:14:54,072 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:14:54,072 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:14:54,082 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:54" (1/1) ... [2023-11-19 03:14:54,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:54" (1/1) ... [2023-11-19 03:14:54,083 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:54" (1/1) ... [2023-11-19 03:14:54,083 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:54" (1/1) ... [2023-11-19 03:14:54,085 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:54" (1/1) ... [2023-11-19 03:14:54,087 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:54" (1/1) ... [2023-11-19 03:14:54,088 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:54" (1/1) ... [2023-11-19 03:14:54,089 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:54" (1/1) ... [2023-11-19 03:14:54,090 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:14:54,091 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:14:54,091 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:14:54,091 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:14:54,092 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:14:54" (1/1) ... [2023-11-19 03:14:54,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:14:54,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18b5426-cda8-4bcb-bb9d-ca26816ba6ef/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:14:54,122 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18b5426-cda8-4bcb-bb9d-ca26816ba6ef/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:14:54,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18b5426-cda8-4bcb-bb9d-ca26816ba6ef/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:14:54,168 INFO L130 BoogieDeclarations]: Found specification of procedure rec1 [2023-11-19 03:14:54,168 INFO L138 BoogieDeclarations]: Found implementation of procedure rec1 [2023-11-19 03:14:54,168 INFO L130 BoogieDeclarations]: Found specification of procedure rec2 [2023-11-19 03:14:54,168 INFO L138 BoogieDeclarations]: Found implementation of procedure rec2 [2023-11-19 03:14:54,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:14:54,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:14:54,232 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:14:54,233 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:14:54,392 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:14:54,412 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:14:54,412 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:14:54,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:14:54 BoogieIcfgContainer [2023-11-19 03:14:54,417 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:14:54,418 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:14:54,418 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:14:54,427 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:14:54,427 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:14:54" (1/1) ... [2023-11-19 03:14:54,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:14:54,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:14:54,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 42 states and 47 transitions. [2023-11-19 03:14:54,497 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2023-11-19 03:14:54,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 03:14:54,502 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:14:54,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:14:54,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:14:54,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:14:54,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:14:54,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 41 states and 46 transitions. [2023-11-19 03:14:54,677 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2023-11-19 03:14:54,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:14:54,677 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:14:54,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:14:54,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:14:54,704 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:14:54,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:14:54,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:14:54,757 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:14:54,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:14:54,785 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-19 03:14:54,816 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:14:54 ImpRootNode [2023-11-19 03:14:54,817 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:14:54,819 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:14:54,819 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:14:54,820 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:14:54,821 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:14:54" (3/4) ... [2023-11-19 03:14:54,822 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 03:14:54,881 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18b5426-cda8-4bcb-bb9d-ca26816ba6ef/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:14:54,881 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:14:54,887 INFO L158 Benchmark]: Toolchain (without parser) took 1048.57ms. Allocated memory was 155.2MB in the beginning and 195.0MB in the end (delta: 39.8MB). Free memory was 109.2MB in the beginning and 164.9MB in the end (delta: -55.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:14:54,888 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 155.2MB. Free memory was 101.2MB in the beginning and 101.1MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:14:54,889 INFO L158 Benchmark]: CACSL2BoogieTranslator took 208.27ms. Allocated memory is still 155.2MB. Free memory was 108.7MB in the beginning and 99.2MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:14:54,890 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.12ms. Allocated memory is still 155.2MB. Free memory was 99.2MB in the beginning and 98.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:14:54,891 INFO L158 Benchmark]: Boogie Preprocessor took 18.11ms. Allocated memory is still 155.2MB. Free memory was 98.1MB in the beginning and 97.1MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:14:54,891 INFO L158 Benchmark]: RCFGBuilder took 326.59ms. Allocated memory is still 155.2MB. Free memory was 97.1MB in the beginning and 86.1MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:14:54,894 INFO L158 Benchmark]: CodeCheck took 398.56ms. Allocated memory was 155.2MB in the beginning and 195.0MB in the end (delta: 39.8MB). Free memory was 86.1MB in the beginning and 161.1MB in the end (delta: -75.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:14:54,895 INFO L158 Benchmark]: Witness Printer took 62.37ms. Allocated memory is still 195.0MB. Free memory was 161.0MB in the beginning and 164.9MB in the end (delta: -3.9MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2023-11-19 03:14:54,902 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 42 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 6 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 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, 0.1s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 20]: integer overflow possible integer overflow possible We found a FailurePath: [L24] int x = __VERIFIER_nondet_int(); [L25] CALL rec2(x) VAL [\old(j)=2147483647] [L18] COND FALSE !(j <= 0) VAL [\old(j)=2147483647, j=2147483647] [L20] j+1 VAL [\old(j)=2147483647, j=2147483647] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 155.2MB. Free memory was 101.2MB in the beginning and 101.1MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 208.27ms. Allocated memory is still 155.2MB. Free memory was 108.7MB in the beginning and 99.2MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.12ms. Allocated memory is still 155.2MB. Free memory was 99.2MB in the beginning and 98.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.11ms. Allocated memory is still 155.2MB. Free memory was 98.1MB in the beginning and 97.1MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 326.59ms. Allocated memory is still 155.2MB. Free memory was 97.1MB in the beginning and 86.1MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 398.56ms. Allocated memory was 155.2MB in the beginning and 195.0MB in the end (delta: 39.8MB). Free memory was 86.1MB in the beginning and 161.1MB in the end (delta: -75.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 62.37ms. Allocated memory is still 195.0MB. Free memory was 161.0MB in the beginning and 164.9MB in the end (delta: -3.9MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-19 03:14:54,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e18b5426-cda8-4bcb-bb9d-ca26816ba6ef/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(OVERFLOW)