./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_235af5c3-dd08-4189-9931-09f04414cfc5/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235af5c3-dd08-4189-9931-09f04414cfc5/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235af5c3-dd08-4189-9931-09f04414cfc5/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235af5c3-dd08-4189-9931-09f04414cfc5/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235af5c3-dd08-4189-9931-09f04414cfc5/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235af5c3-dd08-4189-9931-09f04414cfc5/bin/uautomizer-uyxdKDjOR8 --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 cdfe8cdf5ef6acb015ae980f200d66be6855e21e0a93c803bebabec43209e961 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 14:38:37,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:38:37,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:38:37,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:38:37,464 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:38:37,465 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:38:37,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:38:37,468 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:38:37,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:38:37,470 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:38:37,471 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:38:37,472 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:38:37,472 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:38:37,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:38:37,474 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:38:37,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:38:37,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:38:37,476 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:38:37,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:38:37,479 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:38:37,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:38:37,482 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:38:37,483 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:38:37,483 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:38:37,486 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:38:37,487 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:38:37,487 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:38:37,488 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:38:37,488 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:38:37,489 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:38:37,489 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:38:37,490 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:38:37,491 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:38:37,491 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:38:37,492 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:38:37,492 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:38:37,493 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:38:37,493 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:38:37,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:38:37,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:38:37,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:38:37,495 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235af5c3-dd08-4189-9931-09f04414cfc5/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 14:38:37,514 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:38:37,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:38:37,514 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:38:37,514 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:38:37,515 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:38:37,515 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:38:37,520 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:38:37,521 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:38:37,521 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:38:37,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:38:37,521 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:38:37,522 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:38:37,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:38:37,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:38:37,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:38:37,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:38:37,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:38:37,523 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:38:37,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:38:37,523 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:38:37,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:38:37,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:38:37,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:38:37,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:38:37,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:38:37,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:38:37,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:38:37,525 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:38:37,525 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:38:37,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:38:37,525 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:38:37,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:38:37,525 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:38:37,526 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:38:37,526 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:38:37,526 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_235af5c3-dd08-4189-9931-09f04414cfc5/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235af5c3-dd08-4189-9931-09f04414cfc5/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdfe8cdf5ef6acb015ae980f200d66be6855e21e0a93c803bebabec43209e961 [2022-12-13 14:38:37,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:38:37,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:38:37,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:38:37,726 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:38:37,727 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:38:37,728 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235af5c3-dd08-4189-9931-09f04414cfc5/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2022-12-13 14:38:40,277 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:38:40,535 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:38:40,535 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235af5c3-dd08-4189-9931-09f04414cfc5/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2022-12-13 14:38:40,549 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235af5c3-dd08-4189-9931-09f04414cfc5/bin/uautomizer-uyxdKDjOR8/data/57e521cad/f9f5187cb018406a9aa4d6e372e6da55/FLAGff3bc56d0 [2022-12-13 14:38:40,842 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235af5c3-dd08-4189-9931-09f04414cfc5/bin/uautomizer-uyxdKDjOR8/data/57e521cad/f9f5187cb018406a9aa4d6e372e6da55 [2022-12-13 14:38:40,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:38:40,845 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:38:40,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:38:40,846 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:38:40,849 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:38:40,849 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:38:40" (1/1) ... [2022-12-13 14:38:40,850 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f6e7939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:38:40, skipping insertion in model container [2022-12-13 14:38:40,850 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:38:40" (1/1) ... [2022-12-13 14:38:40,856 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:38:40,900 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:38:41,038 WARN L237 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_235af5c3-dd08-4189-9931-09f04414cfc5/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c[1871,1884] [2022-12-13 14:38:41,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:38:41,425 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:38:41,436 WARN L237 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_235af5c3-dd08-4189-9931-09f04414cfc5/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c[1871,1884] [2022-12-13 14:38:41,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:38:41,661 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:38:41,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:38:41 WrapperNode [2022-12-13 14:38:41,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:38:41,662 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:38:41,662 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:38:41,663 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:38:41,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:38:41" (1/1) ... [2022-12-13 14:38:41,725 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:38:41" (1/1) ... [2022-12-13 14:38:41,850 INFO L138 Inliner]: procedures = 99, calls = 2724, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8254 [2022-12-13 14:38:41,850 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:38:41,851 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:38:41,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:38:41,851 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:38:41,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:38:41" (1/1) ... [2022-12-13 14:38:41,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:38:41" (1/1) ... [2022-12-13 14:38:41,883 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:38:41" (1/1) ... [2022-12-13 14:38:41,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:38:41" (1/1) ... [2022-12-13 14:38:41,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:38:41" (1/1) ... [2022-12-13 14:38:41,993 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:38:41" (1/1) ... [2022-12-13 14:38:42,011 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:38:41" (1/1) ... [2022-12-13 14:38:42,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:38:41" (1/1) ... [2022-12-13 14:38:42,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:38:42,049 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:38:42,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:38:42,049 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:38:42,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:38:41" (1/1) ... [2022-12-13 14:38:42,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:38:42,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235af5c3-dd08-4189-9931-09f04414cfc5/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:38:42,074 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235af5c3-dd08-4189-9931-09f04414cfc5/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:38:42,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_235af5c3-dd08-4189-9931-09f04414cfc5/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:38:42,108 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-12-13 14:38:42,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-12-13 14:38:42,109 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-12-13 14:38:42,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-12-13 14:38:42,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 14:38:42,109 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-12-13 14:38:42,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-12-13 14:38:42,109 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-12-13 14:38:42,109 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-12-13 14:38:42,109 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-12-13 14:38:42,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-12-13 14:38:42,110 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-12-13 14:38:42,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-12-13 14:38:42,110 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-12-13 14:38:42,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-12-13 14:38:42,110 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-12-13 14:38:42,110 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-12-13 14:38:42,110 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-12-13 14:38:42,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-12-13 14:38:42,110 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-12-13 14:38:42,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-12-13 14:38:42,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 14:38:42,111 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-12-13 14:38:42,111 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-12-13 14:38:42,111 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-12-13 14:38:42,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-12-13 14:38:42,111 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-12-13 14:38:42,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-12-13 14:38:42,111 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-12-13 14:38:42,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-12-13 14:38:42,112 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-12-13 14:38:42,112 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-12-13 14:38:42,112 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-12-13 14:38:42,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-12-13 14:38:42,112 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-12-13 14:38:42,112 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-12-13 14:38:42,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:38:42,130 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-12-13 14:38:42,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-12-13 14:38:42,130 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-12-13 14:38:42,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-12-13 14:38:42,130 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-12-13 14:38:42,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-12-13 14:38:42,130 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-12-13 14:38:42,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-12-13 14:38:42,131 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-12-13 14:38:42,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-12-13 14:38:42,131 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-12-13 14:38:42,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-12-13 14:38:42,131 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-12-13 14:38:42,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-12-13 14:38:42,131 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-12-13 14:38:42,131 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-12-13 14:38:42,131 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-12-13 14:38:42,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-12-13 14:38:42,132 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-12-13 14:38:42,132 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-12-13 14:38:42,132 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-12-13 14:38:42,132 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-12-13 14:38:42,132 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-12-13 14:38:42,132 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-12-13 14:38:42,132 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-12-13 14:38:42,132 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-12-13 14:38:42,132 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-12-13 14:38:42,132 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-12-13 14:38:42,132 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-12-13 14:38:42,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-12-13 14:38:42,133 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-12-13 14:38:42,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-12-13 14:38:42,133 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-12-13 14:38:42,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-12-13 14:38:42,133 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-12-13 14:38:42,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-12-13 14:38:42,133 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-12-13 14:38:42,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-12-13 14:38:42,133 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-12-13 14:38:42,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-12-13 14:38:42,134 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-12-13 14:38:42,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-12-13 14:38:42,134 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-12-13 14:38:42,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-12-13 14:38:42,134 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-12-13 14:38:42,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-12-13 14:38:42,134 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-12-13 14:38:42,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-12-13 14:38:42,134 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-12-13 14:38:42,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-12-13 14:38:42,135 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2022-12-13 14:38:42,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2022-12-13 14:38:42,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:38:42,135 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-12-13 14:38:42,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-12-13 14:38:42,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:38:42,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:38:42,512 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:38:42,513 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:38:55,074 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:38:55,089 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:38:55,089 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 14:38:55,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:38:55 BoogieIcfgContainer [2022-12-13 14:38:55,093 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:38:55,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:38:55,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:38:55,097 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:38:55,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:38:40" (1/3) ... [2022-12-13 14:38:55,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e75c54b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:38:55, skipping insertion in model container [2022-12-13 14:38:55,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:38:41" (2/3) ... [2022-12-13 14:38:55,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e75c54b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:38:55, skipping insertion in model container [2022-12-13 14:38:55,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:38:55" (3/3) ... [2022-12-13 14:38:55,099 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-1.c [2022-12-13 14:38:55,113 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:38:55,113 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 14:38:55,173 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:38:55,178 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4b545394, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:38:55,179 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 14:38:55,189 INFO L276 IsEmpty]: Start isEmpty. Operand has 2453 states, 2105 states have (on average 1.4807600950118764) internal successors, (3117), 2129 states have internal predecessors, (3117), 302 states have call successors, (302), 44 states have call predecessors, (302), 44 states have return successors, (302), 292 states have call predecessors, (302), 302 states have call successors, (302) [2022-12-13 14:38:55,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-12-13 14:38:55,207 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:38:55,208 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:38:55,208 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:38:55,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:38:55,212 INFO L85 PathProgramCache]: Analyzing trace with hash -134003326, now seen corresponding path program 1 times [2022-12-13 14:38:55,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:38:55,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383801301] [2022-12-13 14:38:55,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:38:55,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms