./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/Dubois-023.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_7c9be289-4b33-463a-b3e6-2ff5b58c6e9c/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9be289-4b33-463a-b3e6-2ff5b58c6e9c/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_7c9be289-4b33-463a-b3e6-2ff5b58c6e9c/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9be289-4b33-463a-b3e6-2ff5b58c6e9c/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/xcsp/Dubois-023.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9be289-4b33-463a-b3e6-2ff5b58c6e9c/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_7c9be289-4b33-463a-b3e6-2ff5b58c6e9c/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 3f84ecbe935a7bc7919ebeab0f8b3a08147b8e5773dfa8569f722fcc90f95c5e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 04:49:17,210 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 04:49:17,268 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9be289-4b33-463a-b3e6-2ff5b58c6e9c/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 04:49:17,272 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 04:49:17,273 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 04:49:17,293 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 04:49:17,293 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 04:49:17,294 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 04:49:17,294 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 04:49:17,294 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 04:49:17,294 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 04:49:17,294 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 04:49:17,294 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 04:49:17,294 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 04:49:17,295 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 04:49:17,295 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 04:49:17,295 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 04:49:17,295 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 04:49:17,295 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 04:49:17,295 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 04:49:17,295 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 04:49:17,295 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 04:49:17,295 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 04:49:17,295 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 04:49:17,296 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 04:49:17,296 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 04:49:17,296 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 04:49:17,296 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:49:17,296 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 04:49:17,296 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 04:49:17,296 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 04:49:17,296 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 04:49:17,296 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 04:49:17,296 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_7c9be289-4b33-463a-b3e6-2ff5b58c6e9c/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 -> 3f84ecbe935a7bc7919ebeab0f8b3a08147b8e5773dfa8569f722fcc90f95c5e [2024-12-06 04:49:17,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 04:49:17,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 04:49:17,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 04:49:17,549 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 04:49:17,550 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 04:49:17,551 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9be289-4b33-463a-b3e6-2ff5b58c6e9c/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/xcsp/Dubois-023.c [2024-12-06 04:49:20,210 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9be289-4b33-463a-b3e6-2ff5b58c6e9c/bin/ukojak-verify-CZk0znPC7b/data/ecb808355/f4315aa83e474f2eb1d3bb39673e98d9/FLAG7fb8fbdf3 [2024-12-06 04:49:20,435 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 04:49:20,436 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9be289-4b33-463a-b3e6-2ff5b58c6e9c/sv-benchmarks/c/xcsp/Dubois-023.c [2024-12-06 04:49:20,446 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9be289-4b33-463a-b3e6-2ff5b58c6e9c/bin/ukojak-verify-CZk0znPC7b/data/ecb808355/f4315aa83e474f2eb1d3bb39673e98d9/FLAG7fb8fbdf3 [2024-12-06 04:49:20,461 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9be289-4b33-463a-b3e6-2ff5b58c6e9c/bin/ukojak-verify-CZk0znPC7b/data/ecb808355/f4315aa83e474f2eb1d3bb39673e98d9 [2024-12-06 04:49:20,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 04:49:20,464 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 04:49:20,466 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 04:49:20,466 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 04:49:20,470 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 04:49:20,471 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:49:20" (1/1) ... [2024-12-06 04:49:20,471 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2282bec5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:49:20, skipping insertion in model container [2024-12-06 04:49:20,472 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:49:20" (1/1) ... [2024-12-06 04:49:20,496 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 04:49:20,739 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_7c9be289-4b33-463a-b3e6-2ff5b58c6e9c/sv-benchmarks/c/xcsp/Dubois-023.c[16452,16465] [2024-12-06 04:49:20,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:49:20,766 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 04:49:20,844 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_7c9be289-4b33-463a-b3e6-2ff5b58c6e9c/sv-benchmarks/c/xcsp/Dubois-023.c[16452,16465] [2024-12-06 04:49:20,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:49:20,862 INFO L204 MainTranslator]: Completed translation [2024-12-06 04:49:20,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:49:20 WrapperNode [2024-12-06 04:49:20,862 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 04:49:20,863 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 04:49:20,863 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 04:49:20,863 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 04:49:20,870 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:49:20" (1/1) ... [2024-12-06 04:49:20,899 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:49:20" (1/1) ... [2024-12-06 04:49:21,106 INFO L138 Inliner]: procedures = 13, calls = 191, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 4593 [2024-12-06 04:49:21,107 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 04:49:21,107 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 04:49:21,108 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 04:49:21,108 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 04:49:21,115 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:49:20" (1/1) ... [2024-12-06 04:49:21,115 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:49:20" (1/1) ... [2024-12-06 04:49:21,145 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:49:20" (1/1) ... [2024-12-06 04:49:21,145 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:49:20" (1/1) ... [2024-12-06 04:49:21,271 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:49:20" (1/1) ... [2024-12-06 04:49:21,289 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:49:20" (1/1) ... [2024-12-06 04:49:21,312 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:49:20" (1/1) ... [2024-12-06 04:49:21,340 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:49:20" (1/1) ... [2024-12-06 04:49:21,350 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:49:20" (1/1) ... [2024-12-06 04:49:21,404 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 04:49:21,405 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 04:49:21,405 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 04:49:21,405 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 04:49:21,406 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:49:20" (1/1) ... [2024-12-06 04:49:21,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:49:21,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9be289-4b33-463a-b3e6-2ff5b58c6e9c/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 04:49:21,433 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9be289-4b33-463a-b3e6-2ff5b58c6e9c/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 04:49:21,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c9be289-4b33-463a-b3e6-2ff5b58c6e9c/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 04:49:21,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 04:49:21,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 04:49:21,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 04:49:21,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 04:49:21,460 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-12-06 04:49:21,460 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-12-06 04:49:21,636 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 04:49:21,637 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 04:49:25,564 INFO L? ?]: Removed 1592 outVars from TransFormulas that were not future-live. [2024-12-06 04:49:25,564 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 04:49:29,413 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 04:49:29,413 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-06 04:49:29,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:49:29 BoogieIcfgContainer [2024-12-06 04:49:29,414 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 04:49:29,415 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 04:49:29,415 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 04:49:29,428 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 04:49:29,429 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:49:29" (1/1) ... [2024-12-06 04:49:29,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 04:49:29,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:49:29,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 305 states and 487 transitions. [2024-12-06 04:49:29,498 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 487 transitions. [2024-12-06 04:49:29,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 670 [2024-12-06 04:49:29,533 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:49:29,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:49:35,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat