./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem16_label23.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_2c9c48a2-bc17-406c-a7b9-8c8352620d8a/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c9c48a2-bc17-406c-a7b9-8c8352620d8a/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_2c9c48a2-bc17-406c-a7b9-8c8352620d8a/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c9c48a2-bc17-406c-a7b9-8c8352620d8a/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem16_label23.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c9c48a2-bc17-406c-a7b9-8c8352620d8a/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_2c9c48a2-bc17-406c-a7b9-8c8352620d8a/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 8d85db598b116be798c82f2dd8d1706b14592e07af324ce511eec8d5748ab1b3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:47:38,279 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:47:38,379 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c9c48a2-bc17-406c-a7b9-8c8352620d8a/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-09 00:47:38,387 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:47:38,389 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:47:38,439 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:47:38,440 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:47:38,440 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:47:38,441 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:47:38,443 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:47:38,443 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:47:38,444 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:47:38,444 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 00:47:38,444 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:47:38,448 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 00:47:38,448 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:47:38,448 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:47:38,449 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:47:38,449 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:47:38,449 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:47:38,450 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 00:47:38,454 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:47:38,455 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:47:38,455 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:47:38,455 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:47:38,462 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:47:38,462 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:47:38,463 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:47:38,467 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:47:38,467 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:47:38,467 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:47:38,468 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:47:38,468 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:47:38,468 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_2c9c48a2-bc17-406c-a7b9-8c8352620d8a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c9c48a2-bc17-406c-a7b9-8c8352620d8a/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d85db598b116be798c82f2dd8d1706b14592e07af324ce511eec8d5748ab1b3 [2024-11-09 00:47:38,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:47:38,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:47:38,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:47:38,811 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:47:38,812 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:47:38,813 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c9c48a2-bc17-406c-a7b9-8c8352620d8a/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/eca-rers2012/Problem16_label23.c Unable to find full path for "g++" [2024-11-09 00:47:40,764 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:47:41,179 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:47:41,180 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c9c48a2-bc17-406c-a7b9-8c8352620d8a/sv-benchmarks/c/eca-rers2012/Problem16_label23.c [2024-11-09 00:47:41,201 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c9c48a2-bc17-406c-a7b9-8c8352620d8a/bin/ukojak-verify-ImItNfHLgk/data/2bd89ef9d/2f5160f30c6e4d6ab576a59d4a489996/FLAG8ed629928 [2024-11-09 00:47:41,223 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c9c48a2-bc17-406c-a7b9-8c8352620d8a/bin/ukojak-verify-ImItNfHLgk/data/2bd89ef9d/2f5160f30c6e4d6ab576a59d4a489996 [2024-11-09 00:47:41,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:47:41,238 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:47:41,239 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:47:41,239 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:47:41,243 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:47:41,244 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:47:41" (1/1) ... [2024-11-09 00:47:41,245 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@171daa37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:47:41, skipping insertion in model container [2024-11-09 00:47:41,245 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:47:41" (1/1) ... [2024-11-09 00:47:41,319 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:47:41,553 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_2c9c48a2-bc17-406c-a7b9-8c8352620d8a/sv-benchmarks/c/eca-rers2012/Problem16_label23.c[3431,3444] [2024-11-09 00:47:42,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:47:42,087 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:47:42,112 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_2c9c48a2-bc17-406c-a7b9-8c8352620d8a/sv-benchmarks/c/eca-rers2012/Problem16_label23.c[3431,3444] [2024-11-09 00:47:42,501 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:47:42,556 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:47:42,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:47:42 WrapperNode [2024-11-09 00:47:42,560 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:47:42,562 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:47:42,562 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:47:42,562 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:47:42,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:47:42" (1/1) ... [2024-11-09 00:47:42,614 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:47:42" (1/1) ... [2024-11-09 00:47:42,774 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1769 [2024-11-09 00:47:42,775 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:47:42,776 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:47:42,776 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:47:42,776 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:47:42,786 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:47:42" (1/1) ... [2024-11-09 00:47:42,787 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:47:42" (1/1) ... [2024-11-09 00:47:42,817 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:47:42" (1/1) ... [2024-11-09 00:47:42,818 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:47:42" (1/1) ... [2024-11-09 00:47:42,890 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:47:42" (1/1) ... [2024-11-09 00:47:42,904 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:47:42" (1/1) ... [2024-11-09 00:47:42,937 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:47:42" (1/1) ... [2024-11-09 00:47:42,945 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:47:42" (1/1) ... [2024-11-09 00:47:42,969 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:47:42,971 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:47:42,971 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:47:42,971 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:47:42,972 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:47:42" (1/1) ... [2024-11-09 00:47:42,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:47:42,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c9c48a2-bc17-406c-a7b9-8c8352620d8a/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:47:43,006 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c9c48a2-bc17-406c-a7b9-8c8352620d8a/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:47:43,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c9c48a2-bc17-406c-a7b9-8c8352620d8a/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:47:43,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:47:43,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 00:47:43,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:47:43,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:47:43,126 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:47:43,128 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:47:45,628 INFO L? ?]: Removed 276 outVars from TransFormulas that were not future-live. [2024-11-09 00:47:45,629 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:48:04,495 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:48:04,496 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 00:48:04,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:48:04 BoogieIcfgContainer [2024-11-09 00:48:04,497 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:48:04,498 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:48:04,499 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:48:04,510 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:48:04,510 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:48:04" (1/1) ... [2024-11-09 00:48:04,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:48:04,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:48:04,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2024-11-09 00:48:04,576 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2024-11-09 00:48:04,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 00:48:04,578 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:48:04,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:48:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:48:04,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:48:05,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:48:05,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2024-11-09 00:48:05,106 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2024-11-09 00:48:05,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 00:48:05,107 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:48:05,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:48:05,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat