./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-programs/Problem101_label16.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_14837923-2bfe-4f6b-8da6-fb90ade79016/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14837923-2bfe-4f6b-8da6-fb90ade79016/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_14837923-2bfe-4f6b-8da6-fb90ade79016/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14837923-2bfe-4f6b-8da6-fb90ade79016/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-programs/Problem101_label16.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14837923-2bfe-4f6b-8da6-fb90ade79016/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_14837923-2bfe-4f6b-8da6-fb90ade79016/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 906ffe58b832ff4e782e44c7c61dd77e381780d7da434142e07131413944f85b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 02:28:47,489 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:28:47,607 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14837923-2bfe-4f6b-8da6-fb90ade79016/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-25 02:28:47,617 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 02:28:47,617 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 02:28:47,661 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:28:47,664 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:28:47,665 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:28:47,666 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:28:47,666 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:28:47,667 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:28:47,668 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:28:47,668 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 02:28:47,668 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 02:28:47,669 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 02:28:47,670 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:28:47,670 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:28:47,670 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:28:47,670 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:28:47,670 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 02:28:47,671 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:28:47,671 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:28:47,671 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:28:47,671 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:28:47,671 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:28:47,671 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:28:47,672 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:28:47,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:28:47,672 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:28:47,672 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:28:47,672 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:28:47,672 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 02:28:47,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 02:28:47,672 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_14837923-2bfe-4f6b-8da6-fb90ade79016/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 -> 906ffe58b832ff4e782e44c7c61dd77e381780d7da434142e07131413944f85b [2024-11-25 02:28:48,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:28:48,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:28:48,093 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:28:48,095 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:28:48,096 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:28:48,097 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14837923-2bfe-4f6b-8da6-fb90ade79016/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/eca-programs/Problem101_label16.c [2024-11-25 02:28:52,061 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14837923-2bfe-4f6b-8da6-fb90ade79016/bin/ukojak-verify-ENZ3QT5qd3/data/16972445b/572147e9bea2435599984468cb1fe2eb/FLAGa9b0387ff [2024-11-25 02:28:54,994 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:28:54,995 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14837923-2bfe-4f6b-8da6-fb90ade79016/sv-benchmarks/c/eca-programs/Problem101_label16.c [2024-11-25 02:28:55,168 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14837923-2bfe-4f6b-8da6-fb90ade79016/bin/ukojak-verify-ENZ3QT5qd3/data/16972445b/572147e9bea2435599984468cb1fe2eb/FLAGa9b0387ff [2024-11-25 02:28:55,186 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14837923-2bfe-4f6b-8da6-fb90ade79016/bin/ukojak-verify-ENZ3QT5qd3/data/16972445b/572147e9bea2435599984468cb1fe2eb [2024-11-25 02:28:55,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:28:55,191 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:28:55,193 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:28:55,193 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:28:55,199 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:28:55,200 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:28:55" (1/1) ... [2024-11-25 02:28:55,202 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6299a839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:28:55, skipping insertion in model container [2024-11-25 02:28:55,202 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:28:55" (1/1) ... [2024-11-25 02:28:56,140 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:29:07,694 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_14837923-2bfe-4f6b-8da6-fb90ade79016/sv-benchmarks/c/eca-programs/Problem101_label16.c[2767308,2767321] [2024-11-25 02:29:07,761 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:29:07,773 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:29:15,011 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_14837923-2bfe-4f6b-8da6-fb90ade79016/sv-benchmarks/c/eca-programs/Problem101_label16.c[2767308,2767321] [2024-11-25 02:29:15,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:29:16,231 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:29:16,234 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:29:16 WrapperNode [2024-11-25 02:29:16,234 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:29:16,237 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:29:16,237 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:29:16,238 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:29:16,248 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:29:16" (1/1) ... [2024-11-25 02:29:16,852 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:29:16" (1/1) ... [2024-11-25 02:29:19,476 INFO L138 Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83825 [2024-11-25 02:29:19,477 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:29:19,477 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:29:19,477 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:29:19,477 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:29:19,484 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:29:16" (1/1) ... [2024-11-25 02:29:19,484 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:29:16" (1/1) ... [2024-11-25 02:29:19,799 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:29:16" (1/1) ... [2024-11-25 02:29:19,799 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:29:16" (1/1) ... [2024-11-25 02:29:21,048 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:29:16" (1/1) ... [2024-11-25 02:29:21,189 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:29:16" (1/1) ... [2024-11-25 02:29:21,394 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:29:16" (1/1) ... [2024-11-25 02:29:21,497 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:29:16" (1/1) ... [2024-11-25 02:29:21,616 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:29:16" (1/1) ... [2024-11-25 02:29:22,019 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:29:22,020 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:29:22,020 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:29:22,021 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:29:22,022 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:29:16" (1/1) ... [2024-11-25 02:29:22,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:29:22,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14837923-2bfe-4f6b-8da6-fb90ade79016/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:29:22,062 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14837923-2bfe-4f6b-8da6-fb90ade79016/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:29:22,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14837923-2bfe-4f6b-8da6-fb90ade79016/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:29:22,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 02:29:22,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 02:29:22,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:29:22,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:29:22,297 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:29:22,299 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:30:16,243 INFO L? ?]: Removed 10238 outVars from TransFormulas that were not future-live. [2024-11-25 02:30:16,244 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:30:17,606 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:30:17,607 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-25 02:30:17,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:30:17 BoogieIcfgContainer [2024-11-25 02:30:17,607 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:30:17,608 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:30:17,608 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:30:17,617 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:30:17,618 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:30:17" (1/1) ... [2024-11-25 02:30:17,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:30:17,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:30:17,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20217 states to 10135 states and 20217 transitions. [2024-11-25 02:30:17,848 INFO L276 IsEmpty]: Start isEmpty. Operand 10135 states and 20217 transitions. [2024-11-25 02:30:18,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10086 [2024-11-25 02:30:18,820 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:30:18,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:30:22,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat