./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/Dubois-025.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e901b0-4c82-4013-9791-e52d2ee6d2fb/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e901b0-4c82-4013-9791-e52d2ee6d2fb/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e901b0-4c82-4013-9791-e52d2ee6d2fb/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e901b0-4c82-4013-9791-e52d2ee6d2fb/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/xcsp/Dubois-025.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e901b0-4c82-4013-9791-e52d2ee6d2fb/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e901b0-4c82-4013-9791-e52d2ee6d2fb/bin/ukojak-verify-ImItNfHLgk --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 6695a7a6a6dd8e842be4c135d062342617d8a75bf6d8cfd2fab7ef27361a20a5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:26:16,963 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:26:17,057 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e901b0-4c82-4013-9791-e52d2ee6d2fb/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-08 22:26:17,063 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:26:17,065 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 22:26:17,098 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:26:17,099 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:26:17,100 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:26:17,101 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:26:17,102 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:26:17,102 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:26:17,103 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:26:17,103 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 22:26:17,103 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:26:17,106 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 22:26:17,106 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:26:17,106 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:26:17,107 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:26:17,107 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:26:17,107 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:26:17,107 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 22:26:17,108 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:26:17,112 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:26:17,113 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:26:17,113 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:26:17,113 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:26:17,113 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:26:17,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:26:17,114 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:26:17,114 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:26:17,114 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:26:17,114 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 22:26:17,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:26:17,115 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_c0e901b0-4c82-4013-9791-e52d2ee6d2fb/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e901b0-4c82-4013-9791-e52d2ee6d2fb/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6695a7a6a6dd8e842be4c135d062342617d8a75bf6d8cfd2fab7ef27361a20a5 [2024-11-08 22:26:17,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:26:17,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:26:17,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:26:17,417 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:26:17,418 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:26:17,419 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e901b0-4c82-4013-9791-e52d2ee6d2fb/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/xcsp/Dubois-025.c Unable to find full path for "g++" [2024-11-08 22:26:19,438 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:26:19,731 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:26:19,733 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e901b0-4c82-4013-9791-e52d2ee6d2fb/sv-benchmarks/c/xcsp/Dubois-025.c [2024-11-08 22:26:19,744 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e901b0-4c82-4013-9791-e52d2ee6d2fb/bin/ukojak-verify-ImItNfHLgk/data/03e35a9aa/f236fd8943ae4b5ea81beba318453bfe/FLAGf1b3148f1 [2024-11-08 22:26:19,766 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e901b0-4c82-4013-9791-e52d2ee6d2fb/bin/ukojak-verify-ImItNfHLgk/data/03e35a9aa/f236fd8943ae4b5ea81beba318453bfe [2024-11-08 22:26:19,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:26:19,772 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:26:19,775 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:26:19,775 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:26:19,781 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:26:19,781 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:26:19" (1/1) ... [2024-11-08 22:26:19,783 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55d44809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:19, skipping insertion in model container [2024-11-08 22:26:19,786 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:26:19" (1/1) ... [2024-11-08 22:26:19,840 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:26:20,266 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_c0e901b0-4c82-4013-9791-e52d2ee6d2fb/sv-benchmarks/c/xcsp/Dubois-025.c[17820,17833] [2024-11-08 22:26:20,302 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:26:20,316 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:26:20,456 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_c0e901b0-4c82-4013-9791-e52d2ee6d2fb/sv-benchmarks/c/xcsp/Dubois-025.c[17820,17833] [2024-11-08 22:26:20,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:26:20,486 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:26:20,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:20 WrapperNode [2024-11-08 22:26:20,487 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:26:20,489 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:26:20,489 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:26:20,489 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:26:20,497 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:20" (1/1) ... [2024-11-08 22:26:20,564 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:20" (1/1) ... [2024-11-08 22:26:20,906 INFO L138 Inliner]: procedures = 13, calls = 207, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 4991 [2024-11-08 22:26:20,907 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:26:20,908 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:26:20,908 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:26:20,908 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:26:20,918 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:20" (1/1) ... [2024-11-08 22:26:20,918 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:20" (1/1) ... [2024-11-08 22:26:20,954 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:20" (1/1) ... [2024-11-08 22:26:20,954 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:20" (1/1) ... [2024-11-08 22:26:21,170 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:20" (1/1) ... [2024-11-08 22:26:21,233 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:20" (1/1) ... [2024-11-08 22:26:21,266 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:20" (1/1) ... [2024-11-08 22:26:21,287 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:20" (1/1) ... [2024-11-08 22:26:21,394 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:26:21,395 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:26:21,395 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:26:21,395 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:26:21,396 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:26:20" (1/1) ... [2024-11-08 22:26:21,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:26:21,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e901b0-4c82-4013-9791-e52d2ee6d2fb/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:26:21,466 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e901b0-4c82-4013-9791-e52d2ee6d2fb/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:26:21,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c0e901b0-4c82-4013-9791-e52d2ee6d2fb/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:26:21,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:26:21,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:26:21,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:26:21,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 22:26:21,541 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-11-08 22:26:21,541 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-11-08 22:26:21,827 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:26:21,830 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:26:27,432 INFO L? ?]: Removed 1730 outVars from TransFormulas that were not future-live. [2024-11-08 22:26:27,433 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:26:33,820 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:26:33,820 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 22:26:33,821 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:26:33 BoogieIcfgContainer [2024-11-08 22:26:33,821 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:26:33,822 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:26:33,822 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:26:33,833 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:26:33,834 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:26:33" (1/1) ... [2024-11-08 22:26:33,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:26:33,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:26:33,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 331 states and 529 transitions. [2024-11-08 22:26:33,905 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 529 transitions. [2024-11-08 22:26:33,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 728 [2024-11-08 22:26:33,940 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:26:33,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:26:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat