./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-programs/Problem101_label08.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5705ce7a-2cdf-4af9-8881-e8c24d733635/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5705ce7a-2cdf-4af9-8881-e8c24d733635/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5705ce7a-2cdf-4af9-8881-e8c24d733635/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5705ce7a-2cdf-4af9-8881-e8c24d733635/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-programs/Problem101_label08.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5705ce7a-2cdf-4af9-8881-e8c24d733635/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5705ce7a-2cdf-4af9-8881-e8c24d733635/bin/ukojak-verify-ENZ3QT5qd3 --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 757b5a20d940c6b808111a308c888fc5fe2211cac603e5645744a05abf73e005 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 05:02:42,219 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 05:02:42,331 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5705ce7a-2cdf-4af9-8881-e8c24d733635/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-25 05:02:42,340 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 05:02:42,341 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 05:02:42,369 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 05:02:42,369 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 05:02:42,370 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 05:02:42,370 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 05:02:42,370 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 05:02:42,370 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 05:02:42,370 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 05:02:42,371 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 05:02:42,371 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 05:02:42,371 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 05:02:42,371 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 05:02:42,371 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 05:02:42,371 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 05:02:42,371 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 05:02:42,371 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 05:02:42,371 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 05:02:42,371 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 05:02:42,371 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 05:02:42,372 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 05:02:42,372 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 05:02:42,372 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 05:02:42,372 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 05:02:42,372 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 05:02:42,372 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 05:02:42,372 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 05:02:42,372 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 05:02:42,373 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 05:02:42,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 05:02:42,373 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_5705ce7a-2cdf-4af9-8881-e8c24d733635/bin/ukojak-verify-ENZ3QT5qd3 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 -> 757b5a20d940c6b808111a308c888fc5fe2211cac603e5645744a05abf73e005 [2024-11-25 05:02:42,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 05:02:42,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 05:02:42,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 05:02:42,695 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 05:02:42,695 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 05:02:42,697 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5705ce7a-2cdf-4af9-8881-e8c24d733635/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/eca-programs/Problem101_label08.c [2024-11-25 05:02:45,786 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5705ce7a-2cdf-4af9-8881-e8c24d733635/bin/ukojak-verify-ENZ3QT5qd3/data/4c62af0c2/190a07e9b21d491f8b0c1b123bb86cfc/FLAG4a6b2c799 [2024-11-25 05:02:47,871 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 05:02:47,872 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5705ce7a-2cdf-4af9-8881-e8c24d733635/sv-benchmarks/c/eca-programs/Problem101_label08.c [2024-11-25 05:02:48,035 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5705ce7a-2cdf-4af9-8881-e8c24d733635/bin/ukojak-verify-ENZ3QT5qd3/data/4c62af0c2/190a07e9b21d491f8b0c1b123bb86cfc/FLAG4a6b2c799 [2024-11-25 05:02:48,053 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5705ce7a-2cdf-4af9-8881-e8c24d733635/bin/ukojak-verify-ENZ3QT5qd3/data/4c62af0c2/190a07e9b21d491f8b0c1b123bb86cfc [2024-11-25 05:02:48,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 05:02:48,058 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 05:02:48,060 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 05:02:48,061 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 05:02:48,066 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 05:02:48,067 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:02:48" (1/1) ... [2024-11-25 05:02:48,069 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24eef39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:02:48, skipping insertion in model container [2024-11-25 05:02:48,071 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:02:48" (1/1) ... [2024-11-25 05:02:48,859 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 05:03:00,274 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_5705ce7a-2cdf-4af9-8881-e8c24d733635/sv-benchmarks/c/eca-programs/Problem101_label08.c[2767137,2767150] [2024-11-25 05:03:00,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 05:03:00,354 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 05:03:07,469 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_5705ce7a-2cdf-4af9-8881-e8c24d733635/sv-benchmarks/c/eca-programs/Problem101_label08.c[2767137,2767150] [2024-11-25 05:03:07,481 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 05:03:08,524 INFO L204 MainTranslator]: Completed translation [2024-11-25 05:03:08,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:03:08 WrapperNode [2024-11-25 05:03:08,524 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 05:03:08,525 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 05:03:08,526 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 05:03:08,526 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 05:03:08,532 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:03:08" (1/1) ... [2024-11-25 05:03:09,244 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:03:08" (1/1) ... [2024-11-25 05:03:13,227 INFO L138 Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83825 [2024-11-25 05:03:13,228 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 05:03:13,229 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 05:03:13,229 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 05:03:13,230 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 05:03:13,240 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:03:08" (1/1) ... [2024-11-25 05:03:13,240 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:03:08" (1/1) ... [2024-11-25 05:03:13,770 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:03:08" (1/1) ... [2024-11-25 05:03:13,771 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:03:08" (1/1) ... [2024-11-25 05:03:15,192 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:03:08" (1/1) ... [2024-11-25 05:03:15,305 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:03:08" (1/1) ... [2024-11-25 05:03:15,514 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:03:08" (1/1) ... [2024-11-25 05:03:16,005 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:03:08" (1/1) ... [2024-11-25 05:03:16,098 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:03:08" (1/1) ... [2024-11-25 05:03:16,475 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 05:03:16,476 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 05:03:16,476 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 05:03:16,476 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 05:03:16,478 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:03:08" (1/1) ... [2024-11-25 05:03:16,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 05:03:16,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5705ce7a-2cdf-4af9-8881-e8c24d733635/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 05:03:16,516 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5705ce7a-2cdf-4af9-8881-e8c24d733635/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 05:03:16,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5705ce7a-2cdf-4af9-8881-e8c24d733635/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 05:03:16,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 05:03:16,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 05:03:16,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 05:03:16,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 05:03:16,751 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 05:03:16,753 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 05:04:05,485 INFO L? ?]: Removed 10238 outVars from TransFormulas that were not future-live. [2024-11-25 05:04:05,486 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 05:04:06,731 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 05:04:06,731 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-25 05:04:06,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:04:06 BoogieIcfgContainer [2024-11-25 05:04:06,731 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 05:04:06,732 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 05:04:06,732 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 05:04:06,742 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 05:04:06,742 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:04:06" (1/1) ... [2024-11-25 05:04:06,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 05:04:06,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:04:06,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20217 states to 10135 states and 20217 transitions. [2024-11-25 05:04:06,976 INFO L276 IsEmpty]: Start isEmpty. Operand 10135 states and 20217 transitions. [2024-11-25 05:04:08,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10086 [2024-11-25 05:04:08,057 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 05:04:08,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 05:04:11,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat