./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem05_label50.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_4babdff6-aabf-4623-a17e-ef5bfff03901/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4babdff6-aabf-4623-a17e-ef5bfff03901/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_4babdff6-aabf-4623-a17e-ef5bfff03901/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4babdff6-aabf-4623-a17e-ef5bfff03901/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem05_label50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4babdff6-aabf-4623-a17e-ef5bfff03901/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_4babdff6-aabf-4623-a17e-ef5bfff03901/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 282a7c5db467d81f7336298609e82f11b7fdfeb4219d6d335509af7658ff8fce --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:06:32,800 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:06:32,907 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4babdff6-aabf-4623-a17e-ef5bfff03901/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 04:06:32,913 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:06:32,914 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 04:06:32,954 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:06:32,955 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:06:32,955 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:06:32,956 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:06:32,961 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:06:32,962 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:06:32,962 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:06:32,963 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:06:32,964 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:06:32,965 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:06:32,965 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:06:32,966 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:06:32,966 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:06:32,966 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:06:32,967 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:06:32,968 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:06:32,968 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:06:32,969 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:06:32,969 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:06:32,969 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:06:32,970 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:06:32,971 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:06:32,971 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:06:32,972 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:06:32,972 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:06:32,973 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 04:06:32,973 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:06:32,974 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:06:32,974 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_4babdff6-aabf-4623-a17e-ef5bfff03901/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4babdff6-aabf-4623-a17e-ef5bfff03901/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 282a7c5db467d81f7336298609e82f11b7fdfeb4219d6d335509af7658ff8fce [2023-11-19 04:06:33,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:06:33,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:06:33,253 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:06:33,255 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:06:33,255 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:06:33,257 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4babdff6-aabf-4623-a17e-ef5bfff03901/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/eca-rers2012/Problem05_label50.c [2023-11-19 04:06:36,416 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:06:37,289 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:06:37,290 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4babdff6-aabf-4623-a17e-ef5bfff03901/sv-benchmarks/c/eca-rers2012/Problem05_label50.c [2023-11-19 04:06:37,345 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4babdff6-aabf-4623-a17e-ef5bfff03901/bin/ukojak-verify-G8NBE6pJGL/data/3ce15c56e/bc525966d9a344428a95119f2cb4eabc/FLAGd5e7c392e [2023-11-19 04:06:37,365 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4babdff6-aabf-4623-a17e-ef5bfff03901/bin/ukojak-verify-G8NBE6pJGL/data/3ce15c56e/bc525966d9a344428a95119f2cb4eabc [2023-11-19 04:06:37,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:06:37,374 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:06:37,379 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:06:37,380 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:06:37,385 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:06:37,386 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:06:37" (1/1) ... [2023-11-19 04:06:37,388 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a7c690f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:37, skipping insertion in model container [2023-11-19 04:06:37,389 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:06:37" (1/1) ... [2023-11-19 04:06:37,718 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:06:40,101 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_4babdff6-aabf-4623-a17e-ef5bfff03901/sv-benchmarks/c/eca-rers2012/Problem05_label50.c[380929,380942] [2023-11-19 04:06:40,129 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:06:40,147 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:06:41,470 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_4babdff6-aabf-4623-a17e-ef5bfff03901/sv-benchmarks/c/eca-rers2012/Problem05_label50.c[380929,380942] [2023-11-19 04:06:41,475 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:06:41,548 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:06:41,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:41 WrapperNode [2023-11-19 04:06:41,549 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:06:41,551 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:06:41,551 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:06:41,551 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:06:41,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:41" (1/1) ... [2023-11-19 04:06:41,693 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:41" (1/1) ... [2023-11-19 04:06:42,160 INFO L138 Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 12347 [2023-11-19 04:06:42,161 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:06:42,161 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:06:42,162 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:06:42,162 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:06:42,174 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:41" (1/1) ... [2023-11-19 04:06:42,174 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:41" (1/1) ... [2023-11-19 04:06:42,323 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:41" (1/1) ... [2023-11-19 04:06:42,341 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:41" (1/1) ... [2023-11-19 04:06:42,524 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:41" (1/1) ... [2023-11-19 04:06:42,585 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:41" (1/1) ... [2023-11-19 04:06:42,609 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:41" (1/1) ... [2023-11-19 04:06:42,719 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:41" (1/1) ... [2023-11-19 04:06:42,775 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:06:42,777 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:06:42,777 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:06:42,777 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:06:42,778 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:41" (1/1) ... [2023-11-19 04:06:42,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:06:42,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4babdff6-aabf-4623-a17e-ef5bfff03901/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:06:42,816 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4babdff6-aabf-4623-a17e-ef5bfff03901/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:06:42,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4babdff6-aabf-4623-a17e-ef5bfff03901/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:06:42,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:06:42,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:06:42,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:06:42,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:06:42,999 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:06:43,002 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:06:54,280 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:06:57,523 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:06:57,524 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:06:57,544 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:06:57 BoogieIcfgContainer [2023-11-19 04:06:57,544 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:06:57,545 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:06:57,545 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:06:57,557 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:06:57,557 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:06:57" (1/1) ... [2023-11-19 04:06:57,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:06:57,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:06:57,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3271 states to 1643 states and 3271 transitions. [2023-11-19 04:06:57,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1643 states and 3271 transitions. [2023-11-19 04:06:57,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1632 [2023-11-19 04:06:57,857 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:06:57,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:06:59,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:07:04,078 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 04:07:16,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:07:16,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5026 states to 3272 states and 5026 transitions. [2023-11-19 04:07:16,610 INFO L276 IsEmpty]: Start isEmpty. Operand 3272 states and 5026 transitions. [2023-11-19 04:07:16,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1637 [2023-11-19 04:07:16,662 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:07:16,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:07:17,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat