./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem15_label47.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_f5c3757c-d36a-4d25-9e0b-b0f6630cf246/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c3757c-d36a-4d25-9e0b-b0f6630cf246/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c3757c-d36a-4d25-9e0b-b0f6630cf246/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c3757c-d36a-4d25-9e0b-b0f6630cf246/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem15_label47.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c3757c-d36a-4d25-9e0b-b0f6630cf246/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c3757c-d36a-4d25-9e0b-b0f6630cf246/bin/ukojak-verify-G8NBE6pJGL --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 40f8e49b469936b4286df83be23bbd8a096771e97cd4be5bea6d42464ea1ae03 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:36:22,949 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:36:23,068 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c3757c-d36a-4d25-9e0b-b0f6630cf246/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:36:23,079 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:36:23,080 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:36:23,142 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:36:23,143 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:36:23,144 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:36:23,145 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:36:23,150 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:36:23,152 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:36:23,152 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:36:23,153 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:36:23,155 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:36:23,155 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:36:23,156 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:36:23,156 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:36:23,157 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:36:23,157 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:36:23,158 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:36:23,158 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:36:23,159 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:36:23,159 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:36:23,160 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:36:23,160 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:36:23,161 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:36:23,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:36:23,162 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:36:23,163 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:36:23,163 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:36:23,165 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:36:23,165 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:36:23,165 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:36:23,165 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_f5c3757c-d36a-4d25-9e0b-b0f6630cf246/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c3757c-d36a-4d25-9e0b-b0f6630cf246/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40f8e49b469936b4286df83be23bbd8a096771e97cd4be5bea6d42464ea1ae03 [2023-11-19 03:36:23,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:36:23,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:36:23,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:36:23,522 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:36:23,522 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:36:23,524 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c3757c-d36a-4d25-9e0b-b0f6630cf246/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/eca-rers2012/Problem15_label47.c [2023-11-19 03:36:26,842 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:36:27,395 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:36:27,396 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c3757c-d36a-4d25-9e0b-b0f6630cf246/sv-benchmarks/c/eca-rers2012/Problem15_label47.c [2023-11-19 03:36:27,425 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c3757c-d36a-4d25-9e0b-b0f6630cf246/bin/ukojak-verify-G8NBE6pJGL/data/98a6e4bd4/f6d90375034c41728399958195062e8f/FLAG7e5be158c [2023-11-19 03:36:27,446 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c3757c-d36a-4d25-9e0b-b0f6630cf246/bin/ukojak-verify-G8NBE6pJGL/data/98a6e4bd4/f6d90375034c41728399958195062e8f [2023-11-19 03:36:27,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:36:27,455 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:36:27,459 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:36:27,459 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:36:27,465 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:36:27,466 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:36:27" (1/1) ... [2023-11-19 03:36:27,468 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c345103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:27, skipping insertion in model container [2023-11-19 03:36:27,468 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:36:27" (1/1) ... [2023-11-19 03:36:27,575 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:36:27,781 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_f5c3757c-d36a-4d25-9e0b-b0f6630cf246/sv-benchmarks/c/eca-rers2012/Problem15_label47.c[1373,1386] [2023-11-19 03:36:28,322 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:36:28,334 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:36:28,349 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_f5c3757c-d36a-4d25-9e0b-b0f6630cf246/sv-benchmarks/c/eca-rers2012/Problem15_label47.c[1373,1386] [2023-11-19 03:36:28,724 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:36:28,747 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:36:28,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:28 WrapperNode [2023-11-19 03:36:28,748 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:36:28,750 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:36:28,750 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:36:28,750 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:36:28,758 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:28" (1/1) ... [2023-11-19 03:36:28,814 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:28" (1/1) ... [2023-11-19 03:36:28,999 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1759 [2023-11-19 03:36:29,000 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:36:29,001 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:36:29,001 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:36:29,001 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:36:29,011 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:28" (1/1) ... [2023-11-19 03:36:29,011 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:28" (1/1) ... [2023-11-19 03:36:29,139 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:28" (1/1) ... [2023-11-19 03:36:29,155 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:28" (1/1) ... [2023-11-19 03:36:29,308 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:28" (1/1) ... [2023-11-19 03:36:29,324 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:28" (1/1) ... [2023-11-19 03:36:29,359 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:28" (1/1) ... [2023-11-19 03:36:29,371 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:28" (1/1) ... [2023-11-19 03:36:29,414 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:36:29,416 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:36:29,416 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:36:29,417 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:36:29,418 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:36:28" (1/1) ... [2023-11-19 03:36:29,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:36:29,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c3757c-d36a-4d25-9e0b-b0f6630cf246/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:36:29,456 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c3757c-d36a-4d25-9e0b-b0f6630cf246/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:36:29,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c3757c-d36a-4d25-9e0b-b0f6630cf246/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:36:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:36:29,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:36:29,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:36:29,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:36:29,599 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:36:29,603 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:36:32,611 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:37:06,402 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:37:06,402 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 03:37:06,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:37:06 BoogieIcfgContainer [2023-11-19 03:37:06,406 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:37:06,407 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:37:06,407 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:37:06,418 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:37:06,418 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:37:06" (1/1) ... [2023-11-19 03:37:06,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:37:06,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:37:06,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2023-11-19 03:37:06,499 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2023-11-19 03:37:06,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 03:37:06,501 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:37:06,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:37:06,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:37:06,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:37:07,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:37:07,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2023-11-19 03:37:07,192 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-11-19 03:37:07,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 03:37:07,192 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:37:07,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:37:09,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat