./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c83c7e3-b428-403c-95a8-676e3ac0a23f/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c83c7e3-b428-403c-95a8-676e3ac0a23f/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c83c7e3-b428-403c-95a8-676e3ac0a23f/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c83c7e3-b428-403c-95a8-676e3ac0a23f/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c83c7e3-b428-403c-95a8-676e3ac0a23f/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c83c7e3-b428-403c-95a8-676e3ac0a23f/bin/uautomizer-DrprNOufMa --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5ce8f2917f3c045e2dd62444de112f0f7cfab2516baa3561b477720f1fd4fa0b --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 22:57:11,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 22:57:11,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 22:57:11,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 22:57:11,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 22:57:11,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 22:57:11,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 22:57:11,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 22:57:11,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 22:57:11,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 22:57:11,395 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 22:57:11,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 22:57:11,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 22:57:11,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 22:57:11,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 22:57:11,399 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 22:57:11,400 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 22:57:11,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 22:57:11,402 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 22:57:11,404 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 22:57:11,406 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 22:57:11,407 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 22:57:11,408 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 22:57:11,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 22:57:11,412 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 22:57:11,412 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 22:57:11,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 22:57:11,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 22:57:11,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 22:57:11,414 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 22:57:11,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 22:57:11,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 22:57:11,416 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 22:57:11,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 22:57:11,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 22:57:11,417 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 22:57:11,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 22:57:11,418 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 22:57:11,418 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 22:57:11,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 22:57:11,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 22:57:11,420 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c83c7e3-b428-403c-95a8-676e3ac0a23f/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 22:57:11,436 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 22:57:11,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 22:57:11,437 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 22:57:11,437 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 22:57:11,437 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 22:57:11,437 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 22:57:11,438 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 22:57:11,438 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 22:57:11,438 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 22:57:11,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 22:57:11,438 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 22:57:11,438 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 22:57:11,438 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 22:57:11,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 22:57:11,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 22:57:11,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 22:57:11,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 22:57:11,439 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 22:57:11,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 22:57:11,439 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 22:57:11,439 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 22:57:11,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 22:57:11,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 22:57:11,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 22:57:11,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:57:11,440 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 22:57:11,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 22:57:11,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 22:57:11,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 22:57:11,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 22:57:11,440 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 22:57:11,441 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 22:57:11,441 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 22:57:11,441 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 22:57:11,441 INFO L138 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_0c83c7e3-b428-403c-95a8-676e3ac0a23f/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c83c7e3-b428-403c-95a8-676e3ac0a23f/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ce8f2917f3c045e2dd62444de112f0f7cfab2516baa3561b477720f1fd4fa0b [2021-12-06 22:57:11,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 22:57:11,629 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 22:57:11,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 22:57:11,632 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 22:57:11,632 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 22:57:11,633 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c83c7e3-b428-403c-95a8-676e3ac0a23f/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-2.c [2021-12-06 22:57:11,681 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c83c7e3-b428-403c-95a8-676e3ac0a23f/bin/uautomizer-DrprNOufMa/data/4bf8dd5b1/5d79f388fe754be5b131f4224b784cda/FLAG722762f54 [2021-12-06 22:57:12,140 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 22:57:12,140 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c83c7e3-b428-403c-95a8-676e3ac0a23f/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-2.c [2021-12-06 22:57:12,155 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c83c7e3-b428-403c-95a8-676e3ac0a23f/bin/uautomizer-DrprNOufMa/data/4bf8dd5b1/5d79f388fe754be5b131f4224b784cda/FLAG722762f54 [2021-12-06 22:57:12,169 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c83c7e3-b428-403c-95a8-676e3ac0a23f/bin/uautomizer-DrprNOufMa/data/4bf8dd5b1/5d79f388fe754be5b131f4224b784cda [2021-12-06 22:57:12,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 22:57:12,172 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 22:57:12,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 22:57:12,174 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 22:57:12,177 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 22:57:12,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:57:12" (1/1) ... [2021-12-06 22:57:12,178 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1faf3de0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:12, skipping insertion in model container [2021-12-06 22:57:12,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:57:12" (1/1) ... [2021-12-06 22:57:12,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 22:57:12,228 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 22:57:12,357 WARN L230 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_0c83c7e3-b428-403c-95a8-676e3ac0a23f/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-2.c[1937,1950] [2021-12-06 22:57:12,531 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:57:12,542 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 22:57:12,553 WARN L230 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_0c83c7e3-b428-403c-95a8-676e3ac0a23f/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-2.c[1937,1950] [2021-12-06 22:57:12,710 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:57:12,730 INFO L208 MainTranslator]: Completed translation [2021-12-06 22:57:12,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:12 WrapperNode [2021-12-06 22:57:12,731 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 22:57:12,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 22:57:12,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 22:57:12,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 22:57:12,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:12" (1/1) ... [2021-12-06 22:57:12,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:12" (1/1) ... [2021-12-06 22:57:12,902 INFO L137 Inliner]: procedures = 58, calls = 1758, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 3840 [2021-12-06 22:57:12,903 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 22:57:12,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 22:57:12,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 22:57:12,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 22:57:12,910 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:12" (1/1) ... [2021-12-06 22:57:12,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:12" (1/1) ... [2021-12-06 22:57:12,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:12" (1/1) ... [2021-12-06 22:57:12,922 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:12" (1/1) ... [2021-12-06 22:57:12,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:12" (1/1) ... [2021-12-06 22:57:12,987 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:12" (1/1) ... [2021-12-06 22:57:12,996 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:12" (1/1) ... [2021-12-06 22:57:13,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 22:57:13,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 22:57:13,009 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 22:57:13,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 22:57:13,010 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:12" (1/1) ... [2021-12-06 22:57:13,016 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:57:13,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c83c7e3-b428-403c-95a8-676e3ac0a23f/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:57:13,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c83c7e3-b428-403c-95a8-676e3ac0a23f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 22:57:13,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c83c7e3-b428-403c-95a8-676e3ac0a23f/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 22:57:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 22:57:13,067 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-06 22:57:13,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-06 22:57:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2021-12-06 22:57:13,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2021-12-06 22:57:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 22:57:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-06 22:57:13,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-06 22:57:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-06 22:57:13,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-06 22:57:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2021-12-06 22:57:13,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2021-12-06 22:57:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 22:57:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-06 22:57:13,068 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-06 22:57:13,068 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2021-12-06 22:57:13,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2021-12-06 22:57:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-06 22:57:13,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-06 22:57:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-06 22:57:13,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-06 22:57:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 22:57:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2021-12-06 22:57:13,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2021-12-06 22:57:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 22:57:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-06 22:57:13,069 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-06 22:57:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2021-12-06 22:57:13,069 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2021-12-06 22:57:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 22:57:13,069 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 22:57:13,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 22:57:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 22:57:13,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 22:57:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2021-12-06 22:57:13,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2021-12-06 22:57:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-06 22:57:13,070 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-06 22:57:13,070 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2021-12-06 22:57:13,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2021-12-06 22:57:13,333 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 22:57:13,334 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 22:57:18,949 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 22:57:18,969 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 22:57:18,969 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-06 22:57:18,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:57:18 BoogieIcfgContainer [2021-12-06 22:57:18,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 22:57:18,975 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 22:57:18,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 22:57:18,978 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 22:57:18,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 10:57:12" (1/3) ... [2021-12-06 22:57:18,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eee1fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:57:18, skipping insertion in model container [2021-12-06 22:57:18,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:57:12" (2/3) ... [2021-12-06 22:57:18,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eee1fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:57:18, skipping insertion in model container [2021-12-06 22:57:18,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:57:18" (3/3) ... [2021-12-06 22:57:18,981 INFO L111 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.2.M1-2.c [2021-12-06 22:57:18,986 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 22:57:18,986 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 22:57:19,032 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 22:57:19,037 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 22:57:19,037 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 22:57:19,081 INFO L276 IsEmpty]: Start isEmpty. Operand has 1203 states, 766 states have (on average 1.283289817232376) internal successors, (983), 798 states have internal predecessors, (983), 419 states have call successors, (419), 16 states have call predecessors, (419), 16 states have return successors, (419), 417 states have call predecessors, (419), 419 states have call successors, (419) [2021-12-06 22:57:19,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 723 [2021-12-06 22:57:19,126 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:57:19,127 INFO L514 BasicCegarLoop]: trace histogram [85, 85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:57:19,128 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:57:19,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:57:19,132 INFO L85 PathProgramCache]: Analyzing trace with hash -705707352, now seen corresponding path program 1 times [2021-12-06 22:57:19,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:57:19,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740625233] [2021-12-06 22:57:19,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:57:19,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms