./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-1.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_eb2fe0ef-f508-414e-8661-b13c9a4254b0/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2fe0ef-f508-414e-8661-b13c9a4254b0/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_eb2fe0ef-f508-414e-8661-b13c9a4254b0/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2fe0ef-f508-414e-8661-b13c9a4254b0/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2fe0ef-f508-414e-8661-b13c9a4254b0/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_eb2fe0ef-f508-414e-8661-b13c9a4254b0/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 59e3e46f44c4af6b4c125f352948304d54499979006c079b47d74ff56c39a104 --- 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 14:07:51,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:07:51,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:07:51,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:07:51,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:07:51,048 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:07:51,049 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:07:51,050 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:07:51,052 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:07:51,052 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:07:51,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:07:51,054 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:07:51,054 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:07:51,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:07:51,056 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:07:51,057 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:07:51,058 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:07:51,059 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:07:51,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:07:51,062 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:07:51,063 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:07:51,064 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:07:51,065 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:07:51,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:07:51,069 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:07:51,069 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:07:51,070 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:07:51,071 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:07:51,071 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:07:51,072 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:07:51,072 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:07:51,073 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:07:51,073 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:07:51,074 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:07:51,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:07:51,075 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:07:51,076 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:07:51,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:07:51,076 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:07:51,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:07:51,077 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:07:51,078 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2fe0ef-f508-414e-8661-b13c9a4254b0/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 14:07:51,098 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:07:51,098 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:07:51,098 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:07:51,098 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:07:51,099 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:07:51,099 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:07:51,100 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:07:51,100 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:07:51,100 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:07:51,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:07:51,100 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 14:07:51,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:07:51,101 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 14:07:51,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:07:51,101 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:07:51,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:07:51,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:07:51,101 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 14:07:51,101 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:07:51,101 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:07:51,101 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:07:51,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:07:51,102 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:07:51,102 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:07:51,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:07:51,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:07:51,102 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:07:51,102 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:07:51,102 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:07:51,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:07:51,103 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:07:51,103 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:07:51,103 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:07:51,103 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:07:51,103 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:07:51,103 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_eb2fe0ef-f508-414e-8661-b13c9a4254b0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2fe0ef-f508-414e-8661-b13c9a4254b0/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59e3e46f44c4af6b4c125f352948304d54499979006c079b47d74ff56c39a104 [2022-12-13 14:07:51,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:07:51,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:07:51,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:07:51,299 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:07:51,299 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:07:51,301 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2fe0ef-f508-414e-8661-b13c9a4254b0/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-1.c [2022-12-13 14:07:53,960 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:07:54,479 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:07:54,479 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2fe0ef-f508-414e-8661-b13c9a4254b0/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-1.c [2022-12-13 14:07:54,517 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2fe0ef-f508-414e-8661-b13c9a4254b0/bin/uautomizer-uyxdKDjOR8/data/d918a0dce/dd875930067a404b8c009a6b4aadc522/FLAGd1663e1dd [2022-12-13 14:07:54,527 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2fe0ef-f508-414e-8661-b13c9a4254b0/bin/uautomizer-uyxdKDjOR8/data/d918a0dce/dd875930067a404b8c009a6b4aadc522 [2022-12-13 14:07:54,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:07:54,530 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:07:54,530 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:07:54,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:07:54,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:07:54,533 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:07:54" (1/1) ... [2022-12-13 14:07:54,534 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f6990b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:07:54, skipping insertion in model container [2022-12-13 14:07:54,534 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:07:54" (1/1) ... [2022-12-13 14:07:54,540 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:07:54,643 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:07:54,804 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_eb2fe0ef-f508-414e-8661-b13c9a4254b0/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-1.c[1673,1686] [2022-12-13 14:07:54,908 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 14:07:54,909 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 14:07:54,910 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-13 14:07:54,914 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 14:07:54,914 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 14:07:54,915 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-13 14:07:54,915 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 14:07:54,915 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 14:07:54,959 WARN L623 FunctionHandler]: Unknown extern function ecrobot_status_monitor [2022-12-13 14:07:54,959 WARN L623 FunctionHandler]: Unknown extern function write_mode_on_lcd [2022-12-13 14:07:55,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:07:55,556 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:07:55,566 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_eb2fe0ef-f508-414e-8661-b13c9a4254b0/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M4-1.c[1673,1686] [2022-12-13 14:07:55,581 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 14:07:55,581 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 14:07:55,582 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-13 14:07:55,583 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 14:07:55,584 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 14:07:55,584 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-13 14:07:55,584 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 14:07:55,584 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 14:07:55,606 WARN L623 FunctionHandler]: Unknown extern function ecrobot_status_monitor [2022-12-13 14:07:55,606 WARN L623 FunctionHandler]: Unknown extern function write_mode_on_lcd [2022-12-13 14:07:56,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:07:56,176 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:07:56,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:07:56 WrapperNode [2022-12-13 14:07:56,176 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:07:56,177 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:07:56,177 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:07:56,177 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:07:56,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:07:56" (1/1) ... [2022-12-13 14:07:56,333 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:07:56" (1/1) ... [2022-12-13 14:07:57,054 INFO L138 Inliner]: procedures = 57, calls = 17866, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 39403 [2022-12-13 14:07:57,054 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:07:57,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:07:57,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:07:57,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:07:57,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:07:56" (1/1) ... [2022-12-13 14:07:57,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:07:56" (1/1) ... [2022-12-13 14:07:57,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:07:56" (1/1) ... [2022-12-13 14:07:57,259 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:07:56" (1/1) ... [2022-12-13 14:07:57,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:07:56" (1/1) ... [2022-12-13 14:07:57,782 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:07:56" (1/1) ... [2022-12-13 14:07:57,855 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:07:56" (1/1) ... [2022-12-13 14:07:57,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:07:56" (1/1) ... [2022-12-13 14:07:58,029 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:07:58,030 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:07:58,030 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:07:58,030 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:07:58,031 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:07:56" (1/1) ... [2022-12-13 14:07:58,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:07:58,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2fe0ef-f508-414e-8661-b13c9a4254b0/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:07:58,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2fe0ef-f508-414e-8661-b13c9a4254b0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:07:58,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb2fe0ef-f508-414e-8661-b13c9a4254b0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:07:58,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:07:58,085 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-12-13 14:07:58,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-12-13 14:07:58,086 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-12-13 14:07:58,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-12-13 14:07:58,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 14:07:58,086 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-12-13 14:07:58,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-12-13 14:07:58,086 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-12-13 14:07:58,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-12-13 14:07:58,086 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-12-13 14:07:58,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-12-13 14:07:58,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 14:07:58,087 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-12-13 14:07:58,087 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-12-13 14:07:58,087 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-12-13 14:07:58,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-12-13 14:07:58,087 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-13 14:07:58,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-13 14:07:58,087 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-13 14:07:58,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-13 14:07:58,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 14:07:58,088 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2022-12-13 14:07:58,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2022-12-13 14:07:58,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 14:07:58,088 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-12-13 14:07:58,088 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-12-13 14:07:58,088 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 14:07:58,088 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 14:07:58,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:07:58,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:07:58,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:07:58,089 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-12-13 14:07:58,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-12-13 14:07:58,089 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-12-13 14:07:58,089 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-12-13 14:07:58,089 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-12-13 14:07:58,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-12-13 14:07:59,355 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:07:59,357 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:08:17,621 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:08:17,653 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:08:17,653 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 14:08:17,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:08:17 BoogieIcfgContainer [2022-12-13 14:08:17,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:08:17,669 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:08:17,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:08:17,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:08:17,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:07:54" (1/3) ... [2022-12-13 14:08:17,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db88714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:08:17, skipping insertion in model container [2022-12-13 14:08:17,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:07:56" (2/3) ... [2022-12-13 14:08:17,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4db88714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:08:17, skipping insertion in model container [2022-12-13 14:08:17,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:08:17" (3/3) ... [2022-12-13 14:08:17,675 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.1.M4-1.c [2022-12-13 14:08:17,690 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:08:17,690 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 14:08:17,841 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:08:17,845 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;@1edc2997, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:08:17,846 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 14:08:17,876 INFO L276 IsEmpty]: Start isEmpty. Operand has 12013 states, 7878 states have (on average 1.3196242701193197) internal successors, (10396), 7991 states have internal predecessors, (10396), 4118 states have call successors, (4118), 15 states have call predecessors, (4118), 15 states have return successors, (4118), 4116 states have call predecessors, (4118), 4118 states have call successors, (4118) [2022-12-13 14:08:18,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4617 [2022-12-13 14:08:18,350 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:08:18,352 INFO L195 NwaCegarLoop]: trace histogram [337, 337, 337, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1] [2022-12-13 14:08:18,353 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:08:18,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:08:18,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1611338198, now seen corresponding path program 1 times [2022-12-13 14:08:18,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:08:18,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385301566] [2022-12-13 14:08:18,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:08:18,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms