./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursified_loop-invariants/recursified_linear-inequality-inv-b.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_e1c33acd-d83f-40e7-9c84-e5e6c512479d/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c33acd-d83f-40e7-9c84-e5e6c512479d/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_e1c33acd-d83f-40e7-9c84-e5e6c512479d/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c33acd-d83f-40e7-9c84-e5e6c512479d/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/recursified_loop-invariants/recursified_linear-inequality-inv-b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c33acd-d83f-40e7-9c84-e5e6c512479d/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_e1c33acd-d83f-40e7-9c84-e5e6c512479d/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 c117c02695ddb101583ad96117955e242a853299846ac846441a25e3775ce242 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 03:49:55,925 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 03:49:55,984 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c33acd-d83f-40e7-9c84-e5e6c512479d/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 03:49:55,989 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 03:49:55,989 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 03:49:56,009 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 03:49:56,009 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 03:49:56,010 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 03:49:56,010 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 03:49:56,010 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 03:49:56,010 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 03:49:56,010 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 03:49:56,010 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 03:49:56,010 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 03:49:56,011 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 03:49:56,011 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 03:49:56,011 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 03:49:56,011 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 03:49:56,011 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 03:49:56,011 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 03:49:56,011 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 03:49:56,011 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 03:49:56,011 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 03:49:56,011 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 03:49:56,011 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 03:49:56,011 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 03:49:56,012 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 03:49:56,012 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:49:56,012 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 03:49:56,012 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 03:49:56,012 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 03:49:56,012 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 03:49:56,012 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 03:49:56,012 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_e1c33acd-d83f-40e7-9c84-e5e6c512479d/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 -> c117c02695ddb101583ad96117955e242a853299846ac846441a25e3775ce242 [2024-12-06 03:49:56,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 03:49:56,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 03:49:56,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 03:49:56,264 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 03:49:56,265 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 03:49:56,266 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c33acd-d83f-40e7-9c84-e5e6c512479d/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/recursified_loop-invariants/recursified_linear-inequality-inv-b.c [2024-12-06 03:49:58,877 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c33acd-d83f-40e7-9c84-e5e6c512479d/bin/ukojak-verify-CZk0znPC7b/data/7fb4fdbe4/bde3a0e1a56741cb832c79c5d892ef14/FLAG03ffbb0af [2024-12-06 03:49:59,064 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 03:49:59,064 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c33acd-d83f-40e7-9c84-e5e6c512479d/sv-benchmarks/c/recursified_loop-invariants/recursified_linear-inequality-inv-b.c [2024-12-06 03:49:59,069 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c33acd-d83f-40e7-9c84-e5e6c512479d/bin/ukojak-verify-CZk0znPC7b/data/7fb4fdbe4/bde3a0e1a56741cb832c79c5d892ef14/FLAG03ffbb0af [2024-12-06 03:49:59,080 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c33acd-d83f-40e7-9c84-e5e6c512479d/bin/ukojak-verify-CZk0znPC7b/data/7fb4fdbe4/bde3a0e1a56741cb832c79c5d892ef14 [2024-12-06 03:49:59,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 03:49:59,083 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 03:49:59,084 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 03:49:59,084 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 03:49:59,087 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 03:49:59,088 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:49:59" (1/1) ... [2024-12-06 03:49:59,088 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26a3ba46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:49:59, skipping insertion in model container [2024-12-06 03:49:59,088 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 03:49:59" (1/1) ... [2024-12-06 03:49:59,100 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 03:49:59,242 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_e1c33acd-d83f-40e7-9c84-e5e6c512479d/sv-benchmarks/c/recursified_loop-invariants/recursified_linear-inequality-inv-b.c[1476,1489] [2024-12-06 03:49:59,246 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_e1c33acd-d83f-40e7-9c84-e5e6c512479d/sv-benchmarks/c/recursified_loop-invariants/recursified_linear-inequality-inv-b.c[1549,1562] [2024-12-06 03:49:59,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:49:59,256 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 03:49:59,271 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_e1c33acd-d83f-40e7-9c84-e5e6c512479d/sv-benchmarks/c/recursified_loop-invariants/recursified_linear-inequality-inv-b.c[1476,1489] [2024-12-06 03:49:59,272 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_e1c33acd-d83f-40e7-9c84-e5e6c512479d/sv-benchmarks/c/recursified_loop-invariants/recursified_linear-inequality-inv-b.c[1549,1562] [2024-12-06 03:49:59,273 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 03:49:59,286 INFO L204 MainTranslator]: Completed translation [2024-12-06 03:49:59,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:49:59 WrapperNode [2024-12-06 03:49:59,287 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 03:49:59,288 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 03:49:59,288 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 03:49:59,288 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 03:49:59,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:49:59" (1/1) ... [2024-12-06 03:49:59,300 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:49:59" (1/1) ... [2024-12-06 03:49:59,314 INFO L138 Inliner]: procedures = 13, calls = 46, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 79 [2024-12-06 03:49:59,314 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 03:49:59,314 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 03:49:59,315 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 03:49:59,315 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 03:49:59,322 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:49:59" (1/1) ... [2024-12-06 03:49:59,322 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:49:59" (1/1) ... [2024-12-06 03:49:59,324 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:49:59" (1/1) ... [2024-12-06 03:49:59,324 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:49:59" (1/1) ... [2024-12-06 03:49:59,328 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:49:59" (1/1) ... [2024-12-06 03:49:59,329 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:49:59" (1/1) ... [2024-12-06 03:49:59,331 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:49:59" (1/1) ... [2024-12-06 03:49:59,332 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:49:59" (1/1) ... [2024-12-06 03:49:59,333 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:49:59" (1/1) ... [2024-12-06 03:49:59,335 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 03:49:59,336 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 03:49:59,336 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 03:49:59,336 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 03:49:59,337 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 03:49:59" (1/1) ... [2024-12-06 03:49:59,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 03:49:59,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c33acd-d83f-40e7-9c84-e5e6c512479d/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 03:49:59,361 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c33acd-d83f-40e7-9c84-e5e6c512479d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 03:49:59,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c33acd-d83f-40e7-9c84-e5e6c512479d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 03:49:59,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 03:49:59,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 03:49:59,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-06 03:49:59,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-06 03:49:59,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 03:49:59,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 03:49:59,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-06 03:49:59,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 03:49:59,388 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_12_to_15_0 [2024-12-06 03:49:59,388 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_12_to_15_0 [2024-12-06 03:49:59,449 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 03:49:59,451 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 03:49:59,576 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-12-06 03:49:59,577 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 03:49:59,595 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 03:49:59,595 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 03:49:59,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:49:59 BoogieIcfgContainer [2024-12-06 03:49:59,596 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 03:49:59,597 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 03:49:59,597 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 03:49:59,606 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 03:49:59,606 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:49:59" (1/1) ... [2024-12-06 03:49:59,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 03:49:59,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:49:59,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2024-12-06 03:49:59,660 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2024-12-06 03:49:59,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 03:49:59,664 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:49:59,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:49:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:50:00,064 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 03:50:00,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:50:00,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 21 states and 28 transitions. [2024-12-06 03:50:00,203 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2024-12-06 03:50:00,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 03:50:00,203 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:50:00,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:50:00,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:50:00,243 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 03:50:00,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:50:00,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 19 states and 25 transitions. [2024-12-06 03:50:00,252 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2024-12-06 03:50:00,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-06 03:50:00,252 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:50:00,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:50:00,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 03:50:01,266 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 03:50:02,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 03:50:02,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 23 states and 33 transitions. [2024-12-06 03:50:02,561 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 33 transitions. [2024-12-06 03:50:02,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-06 03:50:02,562 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 03:50:02,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 03:50:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:50:02,658 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 03:50:02,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:50:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:50:02,942 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 03:50:02,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 03:50:02,992 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2024-12-06 03:50:03,029 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 03:50:03 ImpRootNode [2024-12-06 03:50:03,029 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 03:50:03,029 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 03:50:03,029 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 03:50:03,030 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 03:50:03,030 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 03:49:59" (3/4) ... [2024-12-06 03:50:03,031 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 03:50:03,075 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 12. [2024-12-06 03:50:03,124 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c33acd-d83f-40e7-9c84-e5e6c512479d/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 03:50:03,125 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c33acd-d83f-40e7-9c84-e5e6c512479d/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 03:50:03,125 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 03:50:03,126 INFO L158 Benchmark]: Toolchain (without parser) took 4042.66ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 117.2MB in the beginning and 164.5MB in the end (delta: -47.3MB). Peak memory consumption was 96.1MB. Max. memory is 16.1GB. [2024-12-06 03:50:03,126 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 82.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:50:03,126 INFO L158 Benchmark]: CACSL2BoogieTranslator took 203.15ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 106.0MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:50:03,127 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.16ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 104.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:50:03,127 INFO L158 Benchmark]: Boogie Preprocessor took 20.76ms. Allocated memory is still 142.6MB. Free memory was 104.7MB in the beginning and 103.9MB in the end (delta: 813.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 03:50:03,127 INFO L158 Benchmark]: RCFGBuilder took 260.00ms. Allocated memory is still 142.6MB. Free memory was 103.9MB in the beginning and 90.9MB in the end (delta: 13.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 03:50:03,128 INFO L158 Benchmark]: CodeCheck took 3432.20ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 90.9MB in the beginning and 169.5MB in the end (delta: -78.6MB). Peak memory consumption was 62.6MB. Max. memory is 16.1GB. [2024-12-06 03:50:03,128 INFO L158 Benchmark]: Witness Printer took 95.59ms. Allocated memory is still 285.2MB. Free memory was 169.5MB in the beginning and 164.5MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 03:50:03,130 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 3.4s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 81 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 41 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 166 IncrementalHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 41 mSolverCounterUnsat, 37 mSDtfsCounter, 166 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 354 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 336 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 1/4 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, ConComCheckerStatistics: No data available - CounterExampleResult [Line: 52]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L38] unsigned char n = __VERIFIER_nondet_uchar(); [L38] unsigned char n = __VERIFIER_nondet_uchar(); [L39] EXPR \read(n) VAL [n={22711:0}] [L39] COND FALSE !(n == 0) [L46] unsigned char v = 0; [L47] unsigned char s = 0; [L48] unsigned int i = 0; VAL [i={22710:0}, n={22711:0}, s={22712:0}, v={22713:0}] [L49] CALL func_to_recursive_line_12_to_15_0(&v, &n, &s, &i) VAL [\old(i)={22710:0}, \old(n)={22711:0}, \old(s)={22712:0}, \old(v)={22713:0}] [L22] EXPR \read(*i) [L22] EXPR \read(*n) VAL [\old(i)={22710:0}, \old(n)={22711:0}, \old(s)={22712:0}, \old(v)={22713:0}, i={22710:0}, n={22711:0}, s={22712:0}, v={22713:0}] [L22] COND TRUE (*i) < (*n) [L25] *v = __VERIFIER_nondet_uchar() [L26] EXPR \read(*s) [L26] EXPR \read(*v) [L26] *s += *v [L27] EXPR \read(*i) [L27] ++(*i) [L29] CALL func_to_recursive_line_12_to_15_0(v, n, s, i) VAL [\old(i)={22710:0}, \old(n)={22711:0}, \old(s)={22712:0}, \old(v)={22713:0}] [L22] EXPR \read(*i) [L22] EXPR \read(*n) VAL [\old(i)={22710:0}, \old(n)={22711:0}, \old(s)={22712:0}, \old(v)={22713:0}, i={22710:0}, n={22711:0}, s={22712:0}, v={22713:0}] [L22] COND TRUE (*i) < (*n) [L25] *v = __VERIFIER_nondet_uchar() [L26] EXPR \read(*s) [L26] EXPR \read(*v) [L26] *s += *v [L27] EXPR \read(*i) [L27] ++(*i) [L29] CALL func_to_recursive_line_12_to_15_0(v, n, s, i) VAL [\old(i)={22710:0}, \old(n)={22711:0}, \old(s)={22712:0}, \old(v)={22713:0}] [L22] EXPR \read(*i) [L22] EXPR \read(*n) VAL [\old(i)={22710:0}, \old(n)={22711:0}, \old(s)={22712:0}, \old(v)={22713:0}, i={22710:0}, n={22711:0}, s={22712:0}, v={22713:0}] [L22] COND FALSE !((*i) < (*n)) [L29] RET func_to_recursive_line_12_to_15_0(v, n, s, i) VAL [\old(i)={22710:0}, \old(n)={22711:0}, \old(s)={22712:0}, \old(v)={22713:0}, i={22710:0}, n={22711:0}, s={22712:0}, v={22713:0}] [L29] RET func_to_recursive_line_12_to_15_0(v, n, s, i) VAL [\old(i)={22710:0}, \old(n)={22711:0}, \old(s)={22712:0}, \old(v)={22713:0}, i={22710:0}, n={22711:0}, s={22712:0}, v={22713:0}] [L49] RET func_to_recursive_line_12_to_15_0(&v, &n, &s, &i) VAL [i={22710:0}, n={22711:0}, s={22712:0}, v={22713:0}] [L50] EXPR \read(s) [L50] EXPR \read(v) VAL [i={22710:0}, n={22711:0}, s={22712:0}] [L50] COND TRUE s < v [L52] reach_error() VAL [i={22710:0}, n={22711:0}, s={22712:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 82.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 203.15ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 106.0MB in the end (delta: 10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.16ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 104.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.76ms. Allocated memory is still 142.6MB. Free memory was 104.7MB in the beginning and 103.9MB in the end (delta: 813.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 260.00ms. Allocated memory is still 142.6MB. Free memory was 103.9MB in the beginning and 90.9MB in the end (delta: 13.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 3432.20ms. Allocated memory was 142.6MB in the beginning and 285.2MB in the end (delta: 142.6MB). Free memory was 90.9MB in the beginning and 169.5MB in the end (delta: -78.6MB). Peak memory consumption was 62.6MB. Max. memory is 16.1GB. * Witness Printer took 95.59ms. Allocated memory is still 285.2MB. Free memory was 169.5MB in the beginning and 164.5MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 03:50:03,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c33acd-d83f-40e7-9c84-e5e6c512479d/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE