./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/Dubois-080.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_f8e04c1d-4e62-4333-b288-7a89ced712c5/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e04c1d-4e62-4333-b288-7a89ced712c5/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e04c1d-4e62-4333-b288-7a89ced712c5/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e04c1d-4e62-4333-b288-7a89ced712c5/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/xcsp/Dubois-080.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e04c1d-4e62-4333-b288-7a89ced712c5/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e04c1d-4e62-4333-b288-7a89ced712c5/bin/ukojak-verify-afCqCEvfdi --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 a4fa2b9c100b5a1fffd01b453507ea3841ddb60b75896d19242716f8e23e40fd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:03:34,367 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:03:34,454 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e04c1d-4e62-4333-b288-7a89ced712c5/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 23:03:34,459 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:03:34,460 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:03:34,489 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:03:34,490 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:03:34,491 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:03:34,494 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:03:34,495 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:03:34,496 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:03:34,496 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:03:34,499 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:03:34,499 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:03:34,502 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:03:34,502 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:03:34,503 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:03:34,503 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:03:34,507 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:03:34,508 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:03:34,508 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:03:34,510 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:03:34,511 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:03:34,511 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:03:34,512 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:03:34,512 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:03:34,513 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:03:34,513 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:03:34,514 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:03:34,514 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:03:34,515 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:03:34,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:03:34,518 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:03:34,518 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_f8e04c1d-4e62-4333-b288-7a89ced712c5/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e04c1d-4e62-4333-b288-7a89ced712c5/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4fa2b9c100b5a1fffd01b453507ea3841ddb60b75896d19242716f8e23e40fd [2023-11-24 23:03:34,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:03:34,923 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:03:34,926 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:03:34,927 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:03:34,928 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:03:34,930 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e04c1d-4e62-4333-b288-7a89ced712c5/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/xcsp/Dubois-080.c [2023-11-24 23:03:38,121 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:03:38,585 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:03:38,586 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e04c1d-4e62-4333-b288-7a89ced712c5/sv-benchmarks/c/xcsp/Dubois-080.c [2023-11-24 23:03:38,606 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e04c1d-4e62-4333-b288-7a89ced712c5/bin/ukojak-verify-afCqCEvfdi/data/4e467bc2f/05f80a9837a64fc1a67273cf31fd5845/FLAG6fbb94052 [2023-11-24 23:03:38,626 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e04c1d-4e62-4333-b288-7a89ced712c5/bin/ukojak-verify-afCqCEvfdi/data/4e467bc2f/05f80a9837a64fc1a67273cf31fd5845 [2023-11-24 23:03:38,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:03:38,634 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:03:38,637 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:03:38,637 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:03:38,642 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:03:38,645 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:03:38" (1/1) ... [2023-11-24 23:03:38,647 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bc72d77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:38, skipping insertion in model container [2023-11-24 23:03:38,647 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:03:38" (1/1) ... [2023-11-24 23:03:38,737 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:03:39,344 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e04c1d-4e62-4333-b288-7a89ced712c5/sv-benchmarks/c/xcsp/Dubois-080.c[57120,57133] [2023-11-24 23:03:39,394 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:03:39,412 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:03:39,815 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e04c1d-4e62-4333-b288-7a89ced712c5/sv-benchmarks/c/xcsp/Dubois-080.c[57120,57133] [2023-11-24 23:03:39,838 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:03:39,855 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:03:39,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:39 WrapperNode [2023-11-24 23:03:39,856 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:03:39,857 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:03:39,857 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:03:39,858 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:03:39,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:39" (1/1) ... [2023-11-24 23:03:40,016 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:39" (1/1) ... [2023-11-24 23:03:41,069 INFO L138 Inliner]: procedures = 13, calls = 647, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19456 [2023-11-24 23:03:41,070 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:03:41,070 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:03:41,071 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:03:41,071 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:03:41,095 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:39" (1/1) ... [2023-11-24 23:03:41,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:39" (1/1) ... [2023-11-24 23:03:41,262 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:39" (1/1) ... [2023-11-24 23:03:41,357 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:39" (1/1) ... [2023-11-24 23:03:41,974 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:39" (1/1) ... [2023-11-24 23:03:42,062 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:39" (1/1) ... [2023-11-24 23:03:42,146 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:39" (1/1) ... [2023-11-24 23:03:42,184 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:39" (1/1) ... [2023-11-24 23:03:42,345 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:03:42,346 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:03:42,346 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:03:42,347 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:03:42,348 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:03:39" (1/1) ... [2023-11-24 23:03:42,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:03:42,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e04c1d-4e62-4333-b288-7a89ced712c5/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:03:42,381 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e04c1d-4e62-4333-b288-7a89ced712c5/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:03:42,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e04c1d-4e62-4333-b288-7a89ced712c5/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:03:42,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:03:42,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:03:42,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:03:42,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:03:42,425 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2023-11-24 23:03:42,426 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2023-11-24 23:03:42,916 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:03:42,919 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:03:54,117 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:04:21,160 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:04:21,160 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:04:21,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:04:21 BoogieIcfgContainer [2023-11-24 23:04:21,163 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:04:21,164 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:04:21,165 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:04:21,178 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:04:21,178 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:04:21" (1/1) ... [2023-11-24 23:04:21,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:04:21,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:04:21,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1046 states and 1684 transitions. [2023-11-24 23:04:21,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1684 transitions. [2023-11-24 23:04:21,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2323 [2023-11-24 23:04:21,457 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:04:21,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms