./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 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_373d21e3-5d3f-4b8c-85a6-98b13b13a4a1/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_373d21e3-5d3f-4b8c-85a6-98b13b13a4a1/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_373d21e3-5d3f-4b8c-85a6-98b13b13a4a1/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_373d21e3-5d3f-4b8c-85a6-98b13b13a4a1/bin/uautomizer-uyxdKDjOR8/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_373d21e3-5d3f-4b8c-85a6-98b13b13a4a1/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_373d21e3-5d3f-4b8c-85a6-98b13b13a4a1/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 5ce8f2917f3c045e2dd62444de112f0f7cfab2516baa3561b477720f1fd4fa0b --- 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 16:55:23,490 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:55:23,492 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:55:23,504 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:55:23,505 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:55:23,505 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:55:23,506 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:55:23,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:55:23,508 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:55:23,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:55:23,509 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:55:23,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:55:23,510 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:55:23,511 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:55:23,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:55:23,512 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:55:23,513 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:55:23,513 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:55:23,514 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:55:23,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:55:23,516 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:55:23,517 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:55:23,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:55:23,519 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:55:23,521 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:55:23,521 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:55:23,521 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:55:23,522 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:55:23,522 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:55:23,523 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:55:23,523 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:55:23,523 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:55:23,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:55:23,524 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:55:23,525 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:55:23,525 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:55:23,525 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:55:23,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:55:23,526 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:55:23,526 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:55:23,527 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:55:23,527 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_373d21e3-5d3f-4b8c-85a6-98b13b13a4a1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 16:55:23,541 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:55:23,542 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:55:23,542 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:55:23,542 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:55:23,542 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:55:23,543 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:55:23,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:55:23,543 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:55:23,543 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:55:23,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:55:23,544 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 16:55:23,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:55:23,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 16:55:23,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:55:23,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:55:23,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:55:23,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:55:23,544 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 16:55:23,544 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:55:23,544 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:55:23,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:55:23,545 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:55:23,545 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:55:23,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:55:23,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:55:23,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:55:23,545 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:55:23,545 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:55:23,545 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:55:23,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:55:23,546 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:55:23,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:55:23,546 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:55:23,546 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:55:23,546 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:55:23,546 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_373d21e3-5d3f-4b8c-85a6-98b13b13a4a1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_373d21e3-5d3f-4b8c-85a6-98b13b13a4a1/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ce8f2917f3c045e2dd62444de112f0f7cfab2516baa3561b477720f1fd4fa0b [2022-12-13 16:55:23,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:55:23,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:55:23,744 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:55:23,745 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:55:23,745 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:55:23,746 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_373d21e3-5d3f-4b8c-85a6-98b13b13a4a1/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-2.c [2022-12-13 16:55:26,311 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:55:26,493 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:55:26,493 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_373d21e3-5d3f-4b8c-85a6-98b13b13a4a1/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-2.c [2022-12-13 16:55:26,506 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_373d21e3-5d3f-4b8c-85a6-98b13b13a4a1/bin/uautomizer-uyxdKDjOR8/data/8b84ebed5/cc40d907b89f4e7698ef8cf519b22103/FLAGc344662b3 [2022-12-13 16:55:26,517 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_373d21e3-5d3f-4b8c-85a6-98b13b13a4a1/bin/uautomizer-uyxdKDjOR8/data/8b84ebed5/cc40d907b89f4e7698ef8cf519b22103 [2022-12-13 16:55:26,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:55:26,520 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:55:26,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:55:26,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:55:26,524 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:55:26,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:55:26" (1/1) ... [2022-12-13 16:55:26,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f03c00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:55:26, skipping insertion in model container [2022-12-13 16:55:26,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:55:26" (1/1) ... [2022-12-13 16:55:26,530 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:55:26,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:55:26,708 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_373d21e3-5d3f-4b8c-85a6-98b13b13a4a1/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-2.c[1937,1950] [2022-12-13 16:55:26,747 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 16:55:26,747 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 16:55:26,749 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-13 16:55:26,752 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 16:55:26,752 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 16:55:26,753 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-13 16:55:26,753 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 16:55:26,753 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 16:55:26,762 WARN L623 FunctionHandler]: Unknown extern function ecrobot_status_monitor [2022-12-13 16:55:26,763 WARN L623 FunctionHandler]: Unknown extern function write_mode_on_lcd [2022-12-13 16:55:26,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:55:26,901 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:55:26,911 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_373d21e3-5d3f-4b8c-85a6-98b13b13a4a1/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-2.c[1937,1950] [2022-12-13 16:55:26,936 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 16:55:26,936 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 16:55:26,937 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-13 16:55:26,939 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 16:55:26,940 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 16:55:26,940 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-13 16:55:26,940 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 16:55:26,941 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 16:55:26,944 WARN L623 FunctionHandler]: Unknown extern function ecrobot_status_monitor [2022-12-13 16:55:26,944 WARN L623 FunctionHandler]: Unknown extern function write_mode_on_lcd [2022-12-13 16:55:27,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:55:27,057 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:55:27,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:55:27 WrapperNode [2022-12-13 16:55:27,057 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:55:27,058 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:55:27,058 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:55:27,058 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:55:27,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:55:27" (1/1) ... [2022-12-13 16:55:27,103 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:55:27" (1/1) ... [2022-12-13 16:55:27,200 INFO L138 Inliner]: procedures = 58, calls = 1758, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 3840 [2022-12-13 16:55:27,200 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:55:27,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:55:27,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:55:27,201 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:55:27,208 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:55:27" (1/1) ... [2022-12-13 16:55:27,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:55:27" (1/1) ... [2022-12-13 16:55:27,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:55:27" (1/1) ... [2022-12-13 16:55:27,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:55:27" (1/1) ... [2022-12-13 16:55:27,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:55:27" (1/1) ... [2022-12-13 16:55:27,285 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:55:27" (1/1) ... [2022-12-13 16:55:27,291 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:55:27" (1/1) ... [2022-12-13 16:55:27,298 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:55:27" (1/1) ... [2022-12-13 16:55:27,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:55:27,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:55:27,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:55:27,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:55:27,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:55:27" (1/1) ... [2022-12-13 16:55:27,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:55:27,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_373d21e3-5d3f-4b8c-85a6-98b13b13a4a1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:55:27,334 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_373d21e3-5d3f-4b8c-85a6-98b13b13a4a1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:55:27,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_373d21e3-5d3f-4b8c-85a6-98b13b13a4a1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:55:27,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:55:27,367 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-12-13 16:55:27,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-12-13 16:55:27,367 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-12-13 16:55:27,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-12-13 16:55:27,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 16:55:27,367 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-12-13 16:55:27,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-12-13 16:55:27,367 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-12-13 16:55:27,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-12-13 16:55:27,368 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-12-13 16:55:27,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-12-13 16:55:27,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 16:55:27,368 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-12-13 16:55:27,368 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-12-13 16:55:27,368 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-12-13 16:55:27,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-12-13 16:55:27,368 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-13 16:55:27,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-13 16:55:27,368 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-13 16:55:27,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-13 16:55:27,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 16:55:27,368 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2022-12-13 16:55:27,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2022-12-13 16:55:27,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 16:55:27,369 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-12-13 16:55:27,369 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-12-13 16:55:27,369 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-12-13 16:55:27,369 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-12-13 16:55:27,369 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 16:55:27,369 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 16:55:27,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:55:27,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:55:27,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:55:27,369 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-12-13 16:55:27,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-12-13 16:55:27,369 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-12-13 16:55:27,369 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-12-13 16:55:27,369 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-12-13 16:55:27,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-12-13 16:55:27,643 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:55:27,645 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:55:33,448 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:55:33,459 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:55:33,459 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 16:55:33,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:55:33 BoogieIcfgContainer [2022-12-13 16:55:33,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:55:33,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:55:33,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:55:33,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:55:33,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:55:26" (1/3) ... [2022-12-13 16:55:33,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1686a09f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:55:33, skipping insertion in model container [2022-12-13 16:55:33,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:55:27" (2/3) ... [2022-12-13 16:55:33,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1686a09f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:55:33, skipping insertion in model container [2022-12-13 16:55:33,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:55:33" (3/3) ... [2022-12-13 16:55:33,467 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.2.M1-2.c [2022-12-13 16:55:33,481 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:55:33,481 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 16:55:33,547 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:55:33,551 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;@2dd554a1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:55:33,552 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 16:55:33,558 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) [2022-12-13 16:55:33,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 723 [2022-12-13 16:55:33,601 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:55:33,601 INFO L195 NwaCegarLoop]: 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] [2022-12-13 16:55:33,602 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:55:33,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:55:33,606 INFO L85 PathProgramCache]: Analyzing trace with hash -705707352, now seen corresponding path program 1 times [2022-12-13 16:55:33,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:55:33,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612517133] [2022-12-13 16:55:33,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:55:33,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms