./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id_b2_o3.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_06c5fd34-b6d2-4120-9c19-feead734680d/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c5fd34-b6d2-4120-9c19-feead734680d/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_06c5fd34-b6d2-4120-9c19-feead734680d/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c5fd34-b6d2-4120-9c19-feead734680d/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_b2_o3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c5fd34-b6d2-4120-9c19-feead734680d/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_06c5fd34-b6d2-4120-9c19-feead734680d/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 2bbfc52b9a0467d32481e7413235257f8cdbdcb51c829bb358c94a1739554a21 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 04:44:27,488 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 04:44:27,541 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c5fd34-b6d2-4120-9c19-feead734680d/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 04:44:27,544 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 04:44:27,545 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 04:44:27,564 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 04:44:27,564 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 04:44:27,565 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 04:44:27,565 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 04:44:27,565 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 04:44:27,565 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 04:44:27,565 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 04:44:27,566 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 04:44:27,566 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 04:44:27,566 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 04:44:27,566 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 04:44:27,566 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 04:44:27,566 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 04:44:27,566 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 04:44:27,566 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 04:44:27,566 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 04:44:27,566 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 04:44:27,566 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 04:44:27,567 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 04:44:27,567 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 04:44:27,567 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 04:44:27,567 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 04:44:27,567 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:44:27,567 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 04:44:27,567 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 04:44:27,567 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 04:44:27,567 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 04:44:27,568 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 04:44:27,568 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_06c5fd34-b6d2-4120-9c19-feead734680d/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 -> 2bbfc52b9a0467d32481e7413235257f8cdbdcb51c829bb358c94a1739554a21 [2024-12-06 04:44:27,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 04:44:27,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 04:44:27,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 04:44:27,790 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 04:44:27,791 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 04:44:27,791 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c5fd34-b6d2-4120-9c19-feead734680d/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/recursive-simple/id_b2_o3.c [2024-12-06 04:44:30,428 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c5fd34-b6d2-4120-9c19-feead734680d/bin/ukojak-verify-CZk0znPC7b/data/c7bab4805/01aa80a766164aa4b89f6b8e8c1038f2/FLAG6a57d701d [2024-12-06 04:44:30,649 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 04:44:30,650 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c5fd34-b6d2-4120-9c19-feead734680d/sv-benchmarks/c/recursive-simple/id_b2_o3.c [2024-12-06 04:44:30,657 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c5fd34-b6d2-4120-9c19-feead734680d/bin/ukojak-verify-CZk0znPC7b/data/c7bab4805/01aa80a766164aa4b89f6b8e8c1038f2/FLAG6a57d701d [2024-12-06 04:44:30,672 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c5fd34-b6d2-4120-9c19-feead734680d/bin/ukojak-verify-CZk0znPC7b/data/c7bab4805/01aa80a766164aa4b89f6b8e8c1038f2 [2024-12-06 04:44:30,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 04:44:30,683 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 04:44:30,685 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 04:44:30,685 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 04:44:30,688 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 04:44:30,688 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:44:30" (1/1) ... [2024-12-06 04:44:30,689 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5375220a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:30, skipping insertion in model container [2024-12-06 04:44:30,689 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:44:30" (1/1) ... [2024-12-06 04:44:30,700 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 04:44:30,805 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_06c5fd34-b6d2-4120-9c19-feead734680d/sv-benchmarks/c/recursive-simple/id_b2_o3.c[568,581] [2024-12-06 04:44:30,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:44:30,815 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 04:44:30,824 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_06c5fd34-b6d2-4120-9c19-feead734680d/sv-benchmarks/c/recursive-simple/id_b2_o3.c[568,581] [2024-12-06 04:44:30,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:44:30,835 INFO L204 MainTranslator]: Completed translation [2024-12-06 04:44:30,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:30 WrapperNode [2024-12-06 04:44:30,835 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 04:44:30,836 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 04:44:30,836 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 04:44:30,836 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 04:44:30,841 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:30" (1/1) ... [2024-12-06 04:44:30,846 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:30" (1/1) ... [2024-12-06 04:44:30,856 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2024-12-06 04:44:30,857 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 04:44:30,857 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 04:44:30,857 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 04:44:30,857 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 04:44:30,862 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:30" (1/1) ... [2024-12-06 04:44:30,862 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:30" (1/1) ... [2024-12-06 04:44:30,863 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:30" (1/1) ... [2024-12-06 04:44:30,863 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:30" (1/1) ... [2024-12-06 04:44:30,865 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:30" (1/1) ... [2024-12-06 04:44:30,865 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:30" (1/1) ... [2024-12-06 04:44:30,866 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:30" (1/1) ... [2024-12-06 04:44:30,867 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:30" (1/1) ... [2024-12-06 04:44:30,868 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:30" (1/1) ... [2024-12-06 04:44:30,869 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 04:44:30,869 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 04:44:30,869 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 04:44:30,869 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 04:44:30,870 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:44:30" (1/1) ... [2024-12-06 04:44:30,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:44:30,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c5fd34-b6d2-4120-9c19-feead734680d/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 04:44:30,895 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c5fd34-b6d2-4120-9c19-feead734680d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 04:44:30,897 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c5fd34-b6d2-4120-9c19-feead734680d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 04:44:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 04:44:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 04:44:30,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 04:44:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 04:44:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure id [2024-12-06 04:44:30,917 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2024-12-06 04:44:30,963 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 04:44:30,965 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 04:44:31,043 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-12-06 04:44:31,043 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 04:44:31,070 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 04:44:31,071 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 04:44:31,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:44:31 BoogieIcfgContainer [2024-12-06 04:44:31,071 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 04:44:31,072 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 04:44:31,072 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 04:44:31,079 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 04:44:31,079 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:44:31" (1/1) ... [2024-12-06 04:44:31,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 04:44:31,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:44:31,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2024-12-06 04:44:31,132 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2024-12-06 04:44:31,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 04:44:31,136 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:44:31,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:44:31,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:44:31,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 04:44:31,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:44:31,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2024-12-06 04:44:31,426 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-12-06 04:44:31,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-06 04:44:31,427 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:44:31,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:44:31,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:44:31,644 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 04:44:31,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:44:31,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2024-12-06 04:44:31,873 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2024-12-06 04:44:31,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-12-06 04:44:31,874 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:44:31,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:44:31,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:44:32,134 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-06 04:44:32,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:44:32,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 28 states and 34 transitions. [2024-12-06 04:44:32,449 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2024-12-06 04:44:32,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-12-06 04:44:32,450 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:44:32,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:44:32,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:44:32,683 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-12-06 04:44:32,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:44:32,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 22 states and 25 transitions. [2024-12-06 04:44:32,809 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2024-12-06 04:44:32,810 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-06 04:44:32,810 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2024-12-06 04:44:32,818 INFO L726 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-12-06 04:44:32,980 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-12-06 04:44:32,981 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2024-12-06 04:44:32,981 INFO L75 FloydHoareUtils]: For program point L17(line 17) no Hoare annotation was computed. [2024-12-06 04:44:32,981 INFO L77 FloydHoareUtils]: At program point L16(lines 16 18) the Hoare annotation is: (and (<= 0 (div |ULTIMATE.start_main_~result~0#1| 4294967296)) (<= |ULTIMATE.start_main_~result~0#1| 2)) [2024-12-06 04:44:32,981 INFO L77 FloydHoareUtils]: At program point L15(line 15) the Hoare annotation is: true [2024-12-06 04:44:32,981 INFO L77 FloydHoareUtils]: At program point L15-1(line 15) the Hoare annotation is: (not (and (not (= |ULTIMATE.start_main_#t~ret6#1| 0)) (not (= |ULTIMATE.start_main_#t~ret6#1| 2)) (not (= |ULTIMATE.start_main_#t~ret6#1| 1)))) [2024-12-06 04:44:32,981 INFO L77 FloydHoareUtils]: At program point L13(lines 13 19) the Hoare annotation is: true [2024-12-06 04:44:32,982 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-12-06 04:44:32,982 INFO L77 FloydHoareUtils]: At program point idFINAL(lines 6 11) the Hoare annotation is: (not (and (not (= |id_#res| 0)) (not (= 2 |id_#res|)) (not (= |id_#res| 1)))) [2024-12-06 04:44:32,982 INFO L77 FloydHoareUtils]: At program point idEXIT(lines 6 11) the Hoare annotation is: (not (and (not (= |id_#res| 0)) (not (= 2 |id_#res|)) (not (= |id_#res| 1)))) [2024-12-06 04:44:32,982 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 6 11) the Hoare annotation is: true [2024-12-06 04:44:32,982 INFO L77 FloydHoareUtils]: At program point L8(line 8) the Hoare annotation is: true [2024-12-06 04:44:32,982 INFO L77 FloydHoareUtils]: At program point L7(line 7) the Hoare annotation is: true [2024-12-06 04:44:32,982 INFO L77 FloydHoareUtils]: At program point L8-1(line 8) the Hoare annotation is: (not (and (not (and (<= (div (+ |id_#t~ret4| 1) 4294967296) 0) (<= 2 |id_#t~ret4|))) (not (= |id_#t~ret4| 0)) (not (= |id_#t~ret4| 1)))) [2024-12-06 04:44:32,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 04:44:32 ImpRootNode [2024-12-06 04:44:32,998 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 04:44:32,999 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 04:44:32,999 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 04:44:32,999 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 04:44:32,999 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:44:31" (3/4) ... [2024-12-06 04:44:33,001 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-06 04:44:33,004 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2024-12-06 04:44:33,007 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-12-06 04:44:33,008 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-06 04:44:33,008 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-06 04:44:33,008 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-06 04:44:33,074 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c5fd34-b6d2-4120-9c19-feead734680d/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 04:44:33,074 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c5fd34-b6d2-4120-9c19-feead734680d/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 04:44:33,074 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 04:44:33,075 INFO L158 Benchmark]: Toolchain (without parser) took 2392.22ms. Allocated memory is still 142.6MB. Free memory was 119.3MB in the beginning and 66.8MB in the end (delta: 52.4MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. [2024-12-06 04:44:33,075 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 142.6MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:44:33,076 INFO L158 Benchmark]: CACSL2BoogieTranslator took 151.38ms. Allocated memory is still 142.6MB. Free memory was 119.1MB in the beginning and 108.5MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 04:44:33,076 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.42ms. Allocated memory is still 142.6MB. Free memory was 108.5MB in the beginning and 107.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:44:33,076 INFO L158 Benchmark]: Boogie Preprocessor took 11.65ms. Allocated memory is still 142.6MB. Free memory was 107.5MB in the beginning and 106.8MB in the end (delta: 683.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:44:33,077 INFO L158 Benchmark]: RCFGBuilder took 201.88ms. Allocated memory is still 142.6MB. Free memory was 106.8MB in the beginning and 96.7MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 04:44:33,077 INFO L158 Benchmark]: CodeCheck took 1926.34ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 71.7MB in the end (delta: 25.0MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2024-12-06 04:44:33,077 INFO L158 Benchmark]: Witness Printer took 75.86ms. Allocated memory is still 142.6MB. Free memory was 71.7MB in the beginning and 66.8MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 04:44:33,079 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: 1.7s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 89 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 28 mSDsCounter, 75 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 161 IncrementalHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 75 mSolverCounterUnsat, 52 mSDtfsCounter, 161 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 473 GetRequests, 432 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 162 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 26/48 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 - PositiveResult [Line: 17]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ProcedureContractResult [Line: 6]: Procedure Contract for id Derived contract for procedure id. Ensures: (((\result == 0) || (\result == 1)) || (2 == \result)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 142.6MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 151.38ms. Allocated memory is still 142.6MB. Free memory was 119.1MB in the beginning and 108.5MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.42ms. Allocated memory is still 142.6MB. Free memory was 108.5MB in the beginning and 107.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 11.65ms. Allocated memory is still 142.6MB. Free memory was 107.5MB in the beginning and 106.8MB in the end (delta: 683.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 201.88ms. Allocated memory is still 142.6MB. Free memory was 106.8MB in the beginning and 96.7MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1926.34ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 71.7MB in the end (delta: 25.0MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * Witness Printer took 75.86ms. Allocated memory is still 142.6MB. Free memory was 71.7MB in the beginning and 66.8MB in the end (delta: 4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-12-06 04:44:33,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06c5fd34-b6d2-4120-9c19-feead734680d/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 Result: TRUE