./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/Dubois-028.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_b19e78b6-6bfe-48b5-95a3-62ed144998da/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19e78b6-6bfe-48b5-95a3-62ed144998da/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19e78b6-6bfe-48b5-95a3-62ed144998da/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19e78b6-6bfe-48b5-95a3-62ed144998da/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/xcsp/Dubois-028.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19e78b6-6bfe-48b5-95a3-62ed144998da/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19e78b6-6bfe-48b5-95a3-62ed144998da/bin/ukojak-verify-ENZ3QT5qd3 --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 e9c82c33607b6df9886f09d452ea11a21297c8205820e53fb20abe885d0848e2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 03:43:52,778 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 03:43:52,834 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19e78b6-6bfe-48b5-95a3-62ed144998da/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-25 03:43:52,839 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 03:43:52,839 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 03:43:52,861 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 03:43:52,861 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 03:43:52,862 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 03:43:52,862 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 03:43:52,862 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 03:43:52,862 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 03:43:52,863 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 03:43:52,863 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 03:43:52,863 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 03:43:52,863 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 03:43:52,863 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 03:43:52,863 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 03:43:52,864 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 03:43:52,864 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 03:43:52,864 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 03:43:52,864 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 03:43:52,864 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 03:43:52,864 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 03:43:52,864 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 03:43:52,865 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 03:43:52,865 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 03:43:52,865 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 03:43:52,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:43:52,865 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 03:43:52,867 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 03:43:52,867 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 03:43:52,867 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 03:43:52,867 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 03:43:52,867 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_b19e78b6-6bfe-48b5-95a3-62ed144998da/bin/ukojak-verify-ENZ3QT5qd3 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 -> e9c82c33607b6df9886f09d452ea11a21297c8205820e53fb20abe885d0848e2 [2024-11-25 03:43:53,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 03:43:53,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 03:43:53,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 03:43:53,167 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 03:43:53,168 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 03:43:53,169 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19e78b6-6bfe-48b5-95a3-62ed144998da/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/xcsp/Dubois-028.c [2024-11-25 03:43:56,025 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19e78b6-6bfe-48b5-95a3-62ed144998da/bin/ukojak-verify-ENZ3QT5qd3/data/d2457c76f/710e78866bf64dbd830c136a23d7be52/FLAG9caa754cc [2024-11-25 03:43:56,358 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 03:43:56,359 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19e78b6-6bfe-48b5-95a3-62ed144998da/sv-benchmarks/c/xcsp/Dubois-028.c [2024-11-25 03:43:56,368 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19e78b6-6bfe-48b5-95a3-62ed144998da/bin/ukojak-verify-ENZ3QT5qd3/data/d2457c76f/710e78866bf64dbd830c136a23d7be52/FLAG9caa754cc [2024-11-25 03:43:56,383 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19e78b6-6bfe-48b5-95a3-62ed144998da/bin/ukojak-verify-ENZ3QT5qd3/data/d2457c76f/710e78866bf64dbd830c136a23d7be52 [2024-11-25 03:43:56,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 03:43:56,387 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 03:43:56,388 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 03:43:56,389 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 03:43:56,393 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 03:43:56,394 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:43:56" (1/1) ... [2024-11-25 03:43:56,395 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73ba7ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:43:56, skipping insertion in model container [2024-11-25 03:43:56,395 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:43:56" (1/1) ... [2024-11-25 03:43:56,442 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 03:43:56,908 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_b19e78b6-6bfe-48b5-95a3-62ed144998da/sv-benchmarks/c/xcsp/Dubois-028.c[19872,19885] [2024-11-25 03:43:56,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:43:56,949 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 03:43:57,076 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_b19e78b6-6bfe-48b5-95a3-62ed144998da/sv-benchmarks/c/xcsp/Dubois-028.c[19872,19885] [2024-11-25 03:43:57,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:43:57,099 INFO L204 MainTranslator]: Completed translation [2024-11-25 03:43:57,100 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:43:57 WrapperNode [2024-11-25 03:43:57,100 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 03:43:57,101 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 03:43:57,101 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 03:43:57,101 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 03:43:57,108 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:43:57" (1/1) ... [2024-11-25 03:43:57,152 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:43:57" (1/1) ... [2024-11-25 03:43:57,551 INFO L138 Inliner]: procedures = 13, calls = 231, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 5588 [2024-11-25 03:43:57,552 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 03:43:57,552 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 03:43:57,553 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 03:43:57,553 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 03:43:57,560 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:43:57" (1/1) ... [2024-11-25 03:43:57,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:43:57" (1/1) ... [2024-11-25 03:43:57,631 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:43:57" (1/1) ... [2024-11-25 03:43:57,631 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:43:57" (1/1) ... [2024-11-25 03:43:57,832 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:43:57" (1/1) ... [2024-11-25 03:43:57,871 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:43:57" (1/1) ... [2024-11-25 03:43:57,924 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:43:57" (1/1) ... [2024-11-25 03:43:58,017 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:43:57" (1/1) ... [2024-11-25 03:43:58,037 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:43:57" (1/1) ... [2024-11-25 03:43:58,176 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 03:43:58,179 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 03:43:58,179 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 03:43:58,180 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 03:43:58,181 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:43:57" (1/1) ... [2024-11-25 03:43:58,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:43:58,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19e78b6-6bfe-48b5-95a3-62ed144998da/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 03:43:58,218 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19e78b6-6bfe-48b5-95a3-62ed144998da/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 03:43:58,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b19e78b6-6bfe-48b5-95a3-62ed144998da/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 03:43:58,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 03:43:58,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 03:43:58,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 03:43:58,251 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 03:43:58,251 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-11-25 03:43:58,252 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-11-25 03:43:58,594 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 03:43:58,596 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 03:44:04,890 INFO L? ?]: Removed 1937 outVars from TransFormulas that were not future-live. [2024-11-25 03:44:04,891 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 03:44:12,249 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 03:44:12,250 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 03:44:12,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:44:12 BoogieIcfgContainer [2024-11-25 03:44:12,250 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 03:44:12,251 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 03:44:12,252 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 03:44:12,273 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 03:44:12,277 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:44:12" (1/1) ... [2024-11-25 03:44:12,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 03:44:12,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:44:12,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 370 states and 592 transitions. [2024-11-25 03:44:12,388 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 592 transitions. [2024-11-25 03:44:12,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 815 [2024-11-25 03:44:12,453 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:44:12,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:44:25,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat