./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M4-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_aea8c667-bab5-4040-af58-6112a97d65b4/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea8c667-bab5-4040-af58-6112a97d65b4/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea8c667-bab5-4040-af58-6112a97d65b4/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea8c667-bab5-4040-af58-6112a97d65b4/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M4-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea8c667-bab5-4040-af58-6112a97d65b4/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea8c667-bab5-4040-af58-6112a97d65b4/bin/uautomizer-ZsLfNo2U6R --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 0d0faf19803047b9d51fb440293a8075aae4a757b1a8a36a5355760a1968a70e --- 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-38b53e6 [2022-11-25 17:32:34,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:32:34,263 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:32:34,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:32:34,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:32:34,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:32:34,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:32:34,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:32:34,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:32:34,293 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:32:34,294 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:32:34,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:32:34,296 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:32:34,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:32:34,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:32:34,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:32:34,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:32:34,301 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:32:34,303 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:32:34,305 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:32:34,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:32:34,308 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:32:34,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:32:34,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:32:34,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:32:34,315 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:32:34,316 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:32:34,317 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:32:34,318 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:32:34,319 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:32:34,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:32:34,320 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:32:34,321 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:32:34,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:32:34,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:32:34,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:32:34,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:32:34,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:32:34,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:32:34,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:32:34,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:32:34,327 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea8c667-bab5-4040-af58-6112a97d65b4/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 17:32:34,351 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:32:34,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:32:34,352 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:32:34,352 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:32:34,353 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:32:34,353 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:32:34,354 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:32:34,354 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:32:34,354 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:32:34,355 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:32:34,355 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:32:34,355 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:32:34,355 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:32:34,356 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:32:34,356 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:32:34,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:32:34,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:32:34,356 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:32:34,357 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:32:34,357 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:32:34,357 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:32:34,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:32:34,358 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:32:34,358 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:32:34,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:32:34,358 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:32:34,359 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:32:34,359 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:32:34,359 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:32:34,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:32:34,360 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:32:34,360 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:32:34,360 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:32:34,360 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:32:34,361 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_aea8c667-bab5-4040-af58-6112a97d65b4/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea8c667-bab5-4040-af58-6112a97d65b4/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d0faf19803047b9d51fb440293a8075aae4a757b1a8a36a5355760a1968a70e [2022-11-25 17:32:34,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:32:34,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:32:34,730 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:32:34,733 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:32:34,733 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:32:34,735 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea8c667-bab5-4040-af58-6112a97d65b4/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M4-1.c [2022-11-25 17:32:37,762 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:32:38,170 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:32:38,171 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea8c667-bab5-4040-af58-6112a97d65b4/sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M4-1.c [2022-11-25 17:32:38,189 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea8c667-bab5-4040-af58-6112a97d65b4/bin/uautomizer-ZsLfNo2U6R/data/80f33622f/e9769215563a42a78a0ea6e2618053bd/FLAG3d81c1a65 [2022-11-25 17:32:38,220 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea8c667-bab5-4040-af58-6112a97d65b4/bin/uautomizer-ZsLfNo2U6R/data/80f33622f/e9769215563a42a78a0ea6e2618053bd [2022-11-25 17:32:38,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:32:38,229 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:32:38,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:32:38,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:32:38,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:32:38,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:32:38" (1/1) ... [2022-11-25 17:32:38,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4897f065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:38, skipping insertion in model container [2022-11-25 17:32:38,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:32:38" (1/1) ... [2022-11-25 17:32:38,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:32:38,318 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:32:38,492 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_aea8c667-bab5-4040-af58-6112a97d65b4/sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M4-1.c[1510,1523] [2022-11-25 17:32:38,568 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-11-25 17:32:38,569 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-11-25 17:32:38,572 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-11-25 17:32:38,577 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-25 17:32:38,578 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-25 17:32:38,578 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-11-25 17:32:38,579 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-25 17:32:38,580 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-25 17:32:38,604 WARN L623 FunctionHandler]: Unknown extern function ecrobot_status_monitor [2022-11-25 17:32:38,606 WARN L623 FunctionHandler]: Unknown extern function write_mode_on_lcd [2022-11-25 17:32:39,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:32:39,024 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:32:39,037 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_aea8c667-bab5-4040-af58-6112a97d65b4/sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M4-1.c[1510,1523] [2022-11-25 17:32:39,073 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-11-25 17:32:39,086 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-11-25 17:32:39,088 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-11-25 17:32:39,090 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-25 17:32:39,091 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-25 17:32:39,092 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-11-25 17:32:39,092 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-25 17:32:39,093 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-25 17:32:39,098 WARN L623 FunctionHandler]: Unknown extern function ecrobot_status_monitor [2022-11-25 17:32:39,102 WARN L623 FunctionHandler]: Unknown extern function write_mode_on_lcd [2022-11-25 17:32:39,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:32:39,304 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:32:39,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:39 WrapperNode [2022-11-25 17:32:39,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:32:39,308 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:32:39,308 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:32:39,308 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:32:39,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:39" (1/1) ... [2022-11-25 17:32:39,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:39" (1/1) ... [2022-11-25 17:32:39,693 INFO L138 Inliner]: procedures = 55, calls = 2046, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 3968 [2022-11-25 17:32:39,693 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:32:39,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:32:39,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:32:39,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:32:39,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:39" (1/1) ... [2022-11-25 17:32:39,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:39" (1/1) ... [2022-11-25 17:32:39,767 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:39" (1/1) ... [2022-11-25 17:32:39,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:39" (1/1) ... [2022-11-25 17:32:39,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:39" (1/1) ... [2022-11-25 17:32:39,915 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:39" (1/1) ... [2022-11-25 17:32:39,934 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:39" (1/1) ... [2022-11-25 17:32:39,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:39" (1/1) ... [2022-11-25 17:32:39,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:32:39,971 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:32:39,972 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:32:39,972 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:32:39,973 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:39" (1/1) ... [2022-11-25 17:32:39,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:32:39,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea8c667-bab5-4040-af58-6112a97d65b4/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:32:40,008 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea8c667-bab5-4040-af58-6112a97d65b4/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:32:40,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aea8c667-bab5-4040-af58-6112a97d65b4/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:32:40,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:32:40,053 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-25 17:32:40,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-25 17:32:40,053 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-11-25 17:32:40,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-11-25 17:32:40,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:32:40,053 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-25 17:32:40,053 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-25 17:32:40,054 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-25 17:32:40,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-25 17:32:40,055 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-11-25 17:32:40,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-11-25 17:32:40,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:32:40,057 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-25 17:32:40,057 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-25 17:32:40,057 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-11-25 17:32:40,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-11-25 17:32:40,058 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-25 17:32:40,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-25 17:32:40,058 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-25 17:32:40,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-25 17:32:40,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:32:40,059 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-11-25 17:32:40,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-11-25 17:32:40,059 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2022-11-25 17:32:40,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2022-11-25 17:32:40,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:32:40,059 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-11-25 17:32:40,059 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-11-25 17:32:40,060 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 17:32:40,060 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 17:32:40,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:32:40,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:32:40,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:32:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-11-25 17:32:40,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-11-25 17:32:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-25 17:32:40,061 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-25 17:32:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-11-25 17:32:40,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-11-25 17:32:40,589 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:32:40,593 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:32:49,051 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:32:49,070 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:32:49,070 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:32:49,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:32:49 BoogieIcfgContainer [2022-11-25 17:32:49,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:32:49,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:32:49,077 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:32:49,080 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:32:49,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:32:38" (1/3) ... [2022-11-25 17:32:49,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4edfc343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:32:49, skipping insertion in model container [2022-11-25 17:32:49,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:32:39" (2/3) ... [2022-11-25 17:32:49,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4edfc343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:32:49, skipping insertion in model container [2022-11-25 17:32:49,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:32:49" (3/3) ... [2022-11-25 17:32:49,083 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_nxt.1.M4-1.c [2022-11-25 17:32:49,103 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:32:49,104 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:32:49,230 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:32:49,239 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;@731165fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:32:49,239 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:32:49,249 INFO L276 IsEmpty]: Start isEmpty. Operand has 1603 states, 972 states have (on average 1.228395061728395) internal successors, (1194), 977 states have internal predecessors, (1194), 613 states have call successors, (613), 16 states have call predecessors, (613), 16 states have return successors, (613), 611 states have call predecessors, (613), 613 states have call successors, (613) [2022-11-25 17:32:49,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8483 [2022-11-25 17:32:49,930 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:32:49,933 INFO L195 NwaCegarLoop]: trace histogram [964, 964, 964, 108, 108, 108, 108, 108, 108, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:32:49,934 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:32:49,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:32:49,941 INFO L85 PathProgramCache]: Analyzing trace with hash -767459317, now seen corresponding path program 1 times [2022-11-25 17:32:49,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:32:49,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202627195] [2022-11-25 17:32:49,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:32:49,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms