./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-1.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_e0c62e94-ecb9-4fd9-9a10-d47892c429b3/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c62e94-ecb9-4fd9-9a10-d47892c429b3/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_e0c62e94-ecb9-4fd9-9a10-d47892c429b3/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c62e94-ecb9-4fd9-9a10-d47892c429b3/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c62e94-ecb9-4fd9-9a10-d47892c429b3/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_e0c62e94-ecb9-4fd9-9a10-d47892c429b3/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 f077881e7f4fa96e31e8798f1b4a7ec1ee00f86778c2b79845cdeaf2537e700e --- 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 17:53:00,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:53:00,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:53:00,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:53:00,199 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:53:00,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:53:00,202 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:53:00,203 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:53:00,205 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:53:00,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:53:00,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:53:00,208 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:53:00,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:53:00,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:53:00,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:53:00,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:53:00,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:53:00,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:53:00,215 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:53:00,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:53:00,218 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:53:00,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:53:00,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:53:00,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:53:00,225 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:53:00,226 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:53:00,226 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:53:00,227 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:53:00,228 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:53:00,229 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:53:00,229 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:53:00,230 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:53:00,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:53:00,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:53:00,232 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:53:00,233 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:53:00,233 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:53:00,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:53:00,234 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:53:00,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:53:00,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:53:00,235 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c62e94-ecb9-4fd9-9a10-d47892c429b3/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 17:53:00,258 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:53:00,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:53:00,258 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:53:00,259 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:53:00,259 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:53:00,259 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:53:00,260 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:53:00,260 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:53:00,260 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:53:00,260 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:53:00,261 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 17:53:00,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:53:00,261 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 17:53:00,261 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:53:00,261 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 17:53:00,261 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:53:00,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 17:53:00,262 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 17:53:00,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:53:00,262 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:53:00,262 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 17:53:00,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:53:00,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:53:00,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:53:00,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:53:00,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:53:00,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:53:00,263 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 17:53:00,263 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:53:00,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 17:53:00,264 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:53:00,264 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 17:53:00,264 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:53:00,264 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:53:00,264 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:53:00,264 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_e0c62e94-ecb9-4fd9-9a10-d47892c429b3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c62e94-ecb9-4fd9-9a10-d47892c429b3/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f077881e7f4fa96e31e8798f1b4a7ec1ee00f86778c2b79845cdeaf2537e700e [2022-12-13 17:53:00,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:53:00,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:53:00,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:53:00,456 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:53:00,457 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:53:00,458 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c62e94-ecb9-4fd9-9a10-d47892c429b3/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-1.c [2022-12-13 17:53:02,993 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:53:03,209 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:53:03,210 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c62e94-ecb9-4fd9-9a10-d47892c429b3/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-1.c [2022-12-13 17:53:03,223 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c62e94-ecb9-4fd9-9a10-d47892c429b3/bin/uautomizer-uyxdKDjOR8/data/aea45f5f3/44fd4b60e5be460b9fc430cb3b136ad3/FLAG6c6b813cb [2022-12-13 17:53:03,560 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c62e94-ecb9-4fd9-9a10-d47892c429b3/bin/uautomizer-uyxdKDjOR8/data/aea45f5f3/44fd4b60e5be460b9fc430cb3b136ad3 [2022-12-13 17:53:03,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:53:03,563 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:53:03,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:53:03,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:53:03,567 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:53:03,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:53:03" (1/1) ... [2022-12-13 17:53:03,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a7b89fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:53:03, skipping insertion in model container [2022-12-13 17:53:03,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:53:03" (1/1) ... [2022-12-13 17:53:03,574 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:53:03,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:53:03,720 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_e0c62e94-ecb9-4fd9-9a10-d47892c429b3/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-1.c[1674,1687] [2022-12-13 17:53:03,757 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 17:53:03,758 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 17:53:03,759 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-13 17:53:03,762 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 17:53:03,763 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 17:53:03,763 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-13 17:53:03,763 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 17:53:03,764 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 17:53:03,772 WARN L623 FunctionHandler]: Unknown extern function ecrobot_status_monitor [2022-12-13 17:53:03,773 WARN L623 FunctionHandler]: Unknown extern function write_mode_on_lcd [2022-12-13 17:53:03,894 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:53:03,904 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:53:03,914 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_e0c62e94-ecb9-4fd9-9a10-d47892c429b3/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.1.M1-1.c[1674,1687] [2022-12-13 17:53:03,926 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 17:53:03,926 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 17:53:03,927 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-13 17:53:03,929 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 17:53:03,929 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 17:53:03,929 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-13 17:53:03,929 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 17:53:03,930 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 17:53:03,933 WARN L623 FunctionHandler]: Unknown extern function ecrobot_status_monitor [2022-12-13 17:53:03,933 WARN L623 FunctionHandler]: Unknown extern function write_mode_on_lcd [2022-12-13 17:53:04,039 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:53:04,052 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:53:04,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:53:04 WrapperNode [2022-12-13 17:53:04,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:53:04,053 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:53:04,053 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:53:04,054 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:53:04,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:53:04" (1/1) ... [2022-12-13 17:53:04,096 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:53:04" (1/1) ... [2022-12-13 17:53:04,188 INFO L138 Inliner]: procedures = 57, calls = 1672, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 3715 [2022-12-13 17:53:04,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:53:04,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:53:04,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:53:04,189 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:53:04,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:53:04" (1/1) ... [2022-12-13 17:53:04,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:53:04" (1/1) ... [2022-12-13 17:53:04,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:53:04" (1/1) ... [2022-12-13 17:53:04,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:53:04" (1/1) ... [2022-12-13 17:53:04,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:53:04" (1/1) ... [2022-12-13 17:53:04,270 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:53:04" (1/1) ... [2022-12-13 17:53:04,277 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:53:04" (1/1) ... [2022-12-13 17:53:04,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:53:04" (1/1) ... [2022-12-13 17:53:04,295 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:53:04,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:53:04,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:53:04,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:53:04,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:53:04" (1/1) ... [2022-12-13 17:53:04,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:53:04,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c62e94-ecb9-4fd9-9a10-d47892c429b3/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:53:04,318 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c62e94-ecb9-4fd9-9a10-d47892c429b3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:53:04,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0c62e94-ecb9-4fd9-9a10-d47892c429b3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:53:04,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:53:04,351 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-12-13 17:53:04,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-12-13 17:53:04,351 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-12-13 17:53:04,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-12-13 17:53:04,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 17:53:04,352 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-12-13 17:53:04,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-12-13 17:53:04,352 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-12-13 17:53:04,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-12-13 17:53:04,352 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-12-13 17:53:04,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-12-13 17:53:04,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 17:53:04,353 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-12-13 17:53:04,353 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-12-13 17:53:04,353 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-12-13 17:53:04,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-12-13 17:53:04,353 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-13 17:53:04,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-13 17:53:04,353 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-13 17:53:04,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-13 17:53:04,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 17:53:04,354 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2022-12-13 17:53:04,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2022-12-13 17:53:04,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 17:53:04,354 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-12-13 17:53:04,354 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-12-13 17:53:04,354 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 17:53:04,354 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 17:53:04,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 17:53:04,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:53:04,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:53:04,355 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-12-13 17:53:04,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-12-13 17:53:04,355 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-12-13 17:53:04,355 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-12-13 17:53:04,355 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-12-13 17:53:04,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-12-13 17:53:04,642 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:53:04,644 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:53:10,502 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:53:10,514 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:53:10,514 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 17:53:10,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:53:10 BoogieIcfgContainer [2022-12-13 17:53:10,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:53:10,520 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:53:10,520 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:53:10,523 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:53:10,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:53:03" (1/3) ... [2022-12-13 17:53:10,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bb7c922 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:53:10, skipping insertion in model container [2022-12-13 17:53:10,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:53:04" (2/3) ... [2022-12-13 17:53:10,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bb7c922 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:53:10, skipping insertion in model container [2022-12-13 17:53:10,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:53:10" (3/3) ... [2022-12-13 17:53:10,525 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.1.M1-1.c [2022-12-13 17:53:10,544 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:53:10,544 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 17:53:10,617 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:53:10,622 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;@4ea83b77, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:53:10,622 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 17:53:10,629 INFO L276 IsEmpty]: Start isEmpty. Operand has 1138 states, 729 states have (on average 1.289437585733882) internal successors, (940), 761 states have internal predecessors, (940), 392 states have call successors, (392), 15 states have call predecessors, (392), 15 states have return successors, (392), 390 states have call predecessors, (392), 392 states have call successors, (392) [2022-12-13 17:53:10,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 723 [2022-12-13 17:53:10,681 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:53:10,682 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 17:53:10,683 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 17:53:10,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:53:10,687 INFO L85 PathProgramCache]: Analyzing trace with hash -435675448, now seen corresponding path program 1 times [2022-12-13 17:53:10,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:53:10,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482032470] [2022-12-13 17:53:10,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:53:10,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms