./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem15_label11.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_ddc246ba-f421-4dfc-b5a1-1baecb2be774/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc246ba-f421-4dfc-b5a1-1baecb2be774/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_ddc246ba-f421-4dfc-b5a1-1baecb2be774/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc246ba-f421-4dfc-b5a1-1baecb2be774/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem15_label11.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc246ba-f421-4dfc-b5a1-1baecb2be774/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_ddc246ba-f421-4dfc-b5a1-1baecb2be774/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 b0d31ac0a4760541f0d40c4e2a162c7e746a87cea96b874d39053630478d669b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:02:03,943 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:02:04,084 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc246ba-f421-4dfc-b5a1-1baecb2be774/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 23:02:04,099 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:02:04,100 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:02:04,146 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:02:04,147 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:02:04,148 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:02:04,149 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:02:04,155 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:02:04,156 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:02:04,157 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:02:04,158 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:02:04,160 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:02:04,160 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:02:04,161 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:02:04,161 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:02:04,162 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:02:04,163 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:02:04,163 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:02:04,164 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:02:04,165 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:02:04,166 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:02:04,166 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:02:04,167 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:02:04,167 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:02:04,168 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:02:04,169 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:02:04,169 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:02:04,170 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:02:04,171 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:02:04,172 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:02:04,172 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:02:04,172 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_ddc246ba-f421-4dfc-b5a1-1baecb2be774/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc246ba-f421-4dfc-b5a1-1baecb2be774/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0d31ac0a4760541f0d40c4e2a162c7e746a87cea96b874d39053630478d669b [2023-11-24 23:02:04,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:02:04,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:02:04,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:02:04,542 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:02:04,543 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:02:04,545 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc246ba-f421-4dfc-b5a1-1baecb2be774/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/eca-rers2012/Problem15_label11.c [2023-11-24 23:02:07,809 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:02:08,244 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:02:08,245 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc246ba-f421-4dfc-b5a1-1baecb2be774/sv-benchmarks/c/eca-rers2012/Problem15_label11.c [2023-11-24 23:02:08,279 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc246ba-f421-4dfc-b5a1-1baecb2be774/bin/ukojak-verify-afCqCEvfdi/data/cffefcbf6/cdd328781b3349fd81d24b63d1fd1cd7/FLAGa8e8d9e90 [2023-11-24 23:02:08,299 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc246ba-f421-4dfc-b5a1-1baecb2be774/bin/ukojak-verify-afCqCEvfdi/data/cffefcbf6/cdd328781b3349fd81d24b63d1fd1cd7 [2023-11-24 23:02:08,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:02:08,305 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:02:08,306 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:02:08,307 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:02:08,313 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:02:08,314 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:02:08" (1/1) ... [2023-11-24 23:02:08,316 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@633553fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:08, skipping insertion in model container [2023-11-24 23:02:08,316 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:02:08" (1/1) ... [2023-11-24 23:02:08,426 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:02:08,708 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_ddc246ba-f421-4dfc-b5a1-1baecb2be774/sv-benchmarks/c/eca-rers2012/Problem15_label11.c[6732,6745] [2023-11-24 23:02:09,388 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:02:09,403 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:02:09,437 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_ddc246ba-f421-4dfc-b5a1-1baecb2be774/sv-benchmarks/c/eca-rers2012/Problem15_label11.c[6732,6745] [2023-11-24 23:02:09,895 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:02:09,919 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:02:09,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:09 WrapperNode [2023-11-24 23:02:09,920 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:02:09,922 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:02:09,922 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:02:09,923 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:02:09,933 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:09" (1/1) ... [2023-11-24 23:02:10,003 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:09" (1/1) ... [2023-11-24 23:02:10,267 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1759 [2023-11-24 23:02:10,267 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:02:10,268 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:02:10,268 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:02:10,268 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:02:10,279 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:09" (1/1) ... [2023-11-24 23:02:10,280 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:09" (1/1) ... [2023-11-24 23:02:10,299 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:09" (1/1) ... [2023-11-24 23:02:10,299 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:09" (1/1) ... [2023-11-24 23:02:10,390 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:09" (1/1) ... [2023-11-24 23:02:10,411 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:09" (1/1) ... [2023-11-24 23:02:10,433 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:09" (1/1) ... [2023-11-24 23:02:10,447 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:09" (1/1) ... [2023-11-24 23:02:10,480 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:02:10,483 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:02:10,483 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:02:10,483 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:02:10,484 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:02:09" (1/1) ... [2023-11-24 23:02:10,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:02:10,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc246ba-f421-4dfc-b5a1-1baecb2be774/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:02:10,529 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc246ba-f421-4dfc-b5a1-1baecb2be774/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:02:10,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ddc246ba-f421-4dfc-b5a1-1baecb2be774/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:02:10,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:02:10,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:02:10,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:02:10,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:02:10,740 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:02:10,743 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:02:14,961 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:02:50,095 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:02:50,095 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:02:50,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:02:50 BoogieIcfgContainer [2023-11-24 23:02:50,098 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:02:50,099 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:02:50,100 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:02:50,112 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:02:50,112 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:02:50" (1/1) ... [2023-11-24 23:02:50,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:02:50,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:02:50,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2023-11-24 23:02:50,198 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2023-11-24 23:02:50,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 23:02:50,201 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:02:50,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:02:50,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:02:50,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:02:51,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:02:51,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:02:51,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2023-11-24 23:02:51,774 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-11-24 23:02:51,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 23:02:51,775 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:02:51,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:02:52,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat