./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem12_label54.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_290b80a3-6748-4132-9e8f-1b3fc5d6e899/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290b80a3-6748-4132-9e8f-1b3fc5d6e899/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290b80a3-6748-4132-9e8f-1b3fc5d6e899/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290b80a3-6748-4132-9e8f-1b3fc5d6e899/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem12_label54.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290b80a3-6748-4132-9e8f-1b3fc5d6e899/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290b80a3-6748-4132-9e8f-1b3fc5d6e899/bin/ukojak-verify-Qdu7aM0XO9 --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 9f137b4cfcf2c394c1a64ac698bc08e2e305ac6959ca2787cbc9ca23749e2553 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 22:10:10,002 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 22:10:10,064 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290b80a3-6748-4132-9e8f-1b3fc5d6e899/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-02 22:10:10,069 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 22:10:10,069 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 22:10:10,089 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 22:10:10,090 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 22:10:10,091 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 22:10:10,091 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 22:10:10,092 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 22:10:10,093 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 22:10:10,093 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 22:10:10,094 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 22:10:10,094 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 22:10:10,095 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 22:10:10,095 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 22:10:10,096 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 22:10:10,096 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 22:10:10,097 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 22:10:10,097 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 22:10:10,098 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 22:10:10,101 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 22:10:10,101 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 22:10:10,102 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 22:10:10,102 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 22:10:10,103 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 22:10:10,103 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:10:10,104 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 22:10:10,104 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 22:10:10,105 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 22:10:10,105 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 22:10:10,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 22:10:10,106 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 22:10:10,106 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_290b80a3-6748-4132-9e8f-1b3fc5d6e899/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290b80a3-6748-4132-9e8f-1b3fc5d6e899/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f137b4cfcf2c394c1a64ac698bc08e2e305ac6959ca2787cbc9ca23749e2553 [2023-12-02 22:10:10,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 22:10:10,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 22:10:10,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 22:10:10,324 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 22:10:10,324 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 22:10:10,326 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290b80a3-6748-4132-9e8f-1b3fc5d6e899/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/eca-rers2012/Problem12_label54.c [2023-12-02 22:10:13,046 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 22:10:13,429 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 22:10:13,429 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290b80a3-6748-4132-9e8f-1b3fc5d6e899/sv-benchmarks/c/eca-rers2012/Problem12_label54.c [2023-12-02 22:10:13,456 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290b80a3-6748-4132-9e8f-1b3fc5d6e899/bin/ukojak-verify-Qdu7aM0XO9/data/919305349/6bab4dc9434244e58586299fb7aa3e15/FLAG5b03e6130 [2023-12-02 22:10:13,468 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290b80a3-6748-4132-9e8f-1b3fc5d6e899/bin/ukojak-verify-Qdu7aM0XO9/data/919305349/6bab4dc9434244e58586299fb7aa3e15 [2023-12-02 22:10:13,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 22:10:13,472 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 22:10:13,473 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 22:10:13,473 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 22:10:13,477 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 22:10:13,478 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:10:13" (1/1) ... [2023-12-02 22:10:13,479 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61d2bf36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:13, skipping insertion in model container [2023-12-02 22:10:13,479 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:10:13" (1/1) ... [2023-12-02 22:10:13,611 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 22:10:13,799 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_290b80a3-6748-4132-9e8f-1b3fc5d6e899/sv-benchmarks/c/eca-rers2012/Problem12_label54.c[4370,4383] [2023-12-02 22:10:14,621 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:10:14,633 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 22:10:14,653 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_290b80a3-6748-4132-9e8f-1b3fc5d6e899/sv-benchmarks/c/eca-rers2012/Problem12_label54.c[4370,4383] [2023-12-02 22:10:15,176 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:10:15,196 INFO L206 MainTranslator]: Completed translation [2023-12-02 22:10:15,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:15 WrapperNode [2023-12-02 22:10:15,196 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 22:10:15,197 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 22:10:15,197 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 22:10:15,197 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 22:10:15,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:15" (1/1) ... [2023-12-02 22:10:15,251 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:15" (1/1) ... [2023-12-02 22:10:15,548 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4758 [2023-12-02 22:10:15,549 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 22:10:15,549 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 22:10:15,549 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 22:10:15,550 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 22:10:15,559 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:15" (1/1) ... [2023-12-02 22:10:15,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:15" (1/1) ... [2023-12-02 22:10:15,597 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:15" (1/1) ... [2023-12-02 22:10:15,597 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:15" (1/1) ... [2023-12-02 22:10:15,731 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:15" (1/1) ... [2023-12-02 22:10:15,761 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:15" (1/1) ... [2023-12-02 22:10:15,773 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:15" (1/1) ... [2023-12-02 22:10:15,783 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:15" (1/1) ... [2023-12-02 22:10:15,849 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 22:10:15,857 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 22:10:15,857 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 22:10:15,858 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 22:10:15,858 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:10:15" (1/1) ... [2023-12-02 22:10:15,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:10:15,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290b80a3-6748-4132-9e8f-1b3fc5d6e899/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 22:10:15,894 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290b80a3-6748-4132-9e8f-1b3fc5d6e899/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 22:10:15,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_290b80a3-6748-4132-9e8f-1b3fc5d6e899/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 22:10:15,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 22:10:15,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 22:10:15,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 22:10:15,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 22:10:16,044 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 22:10:16,051 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 22:10:20,513 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 22:12:26,102 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 22:12:26,102 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 22:12:26,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:12:26 BoogieIcfgContainer [2023-12-02 22:12:26,104 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 22:12:26,104 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 22:12:26,105 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 22:12:26,112 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 22:12:26,112 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:12:26" (1/1) ... [2023-12-02 22:12:26,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 22:12:26,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:12:26,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2023-12-02 22:12:26,163 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2023-12-02 22:12:26,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 22:12:26,165 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:12:26,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:12:26,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:12:26,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:12:27,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:12:27,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2023-12-02 22:12:27,261 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2023-12-02 22:12:27,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 22:12:27,261 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:12:27,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:12:29,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat