./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 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_97092ec4-44ab-4d3f-a32a-35665ec4dc57/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97092ec4-44ab-4d3f-a32a-35665ec4dc57/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_97092ec4-44ab-4d3f-a32a-35665ec4dc57/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97092ec4-44ab-4d3f-a32a-35665ec4dc57/bin/uautomizer-uyxdKDjOR8/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_97092ec4-44ab-4d3f-a32a-35665ec4dc57/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_97092ec4-44ab-4d3f-a32a-35665ec4dc57/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 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-2329fc7 [2022-12-13 18:24:39,500 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:24:39,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:24:39,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:24:39,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:24:39,514 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:24:39,516 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:24:39,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:24:39,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:24:39,522 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:24:39,524 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:24:39,525 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:24:39,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:24:39,528 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:24:39,529 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:24:39,531 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:24:39,532 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:24:39,533 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:24:39,536 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:24:39,539 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:24:39,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:24:39,542 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:24:39,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:24:39,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:24:39,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:24:39,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:24:39,547 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:24:39,548 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:24:39,548 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:24:39,549 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:24:39,549 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:24:39,550 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:24:39,551 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:24:39,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:24:39,552 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:24:39,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:24:39,553 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:24:39,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:24:39,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:24:39,553 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:24:39,554 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:24:39,555 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97092ec4-44ab-4d3f-a32a-35665ec4dc57/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 18:24:39,579 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:24:39,580 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:24:39,580 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:24:39,580 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:24:39,581 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:24:39,581 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:24:39,582 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:24:39,582 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:24:39,582 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:24:39,582 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:24:39,583 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 18:24:39,583 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 18:24:39,583 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 18:24:39,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:24:39,583 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:24:39,583 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:24:39,584 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:24:39,584 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 18:24:39,584 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:24:39,584 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:24:39,584 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:24:39,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:24:39,585 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:24:39,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:24:39,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:24:39,585 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:24:39,586 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:24:39,586 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:24:39,586 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 18:24:39,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 18:24:39,586 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:24:39,587 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:24:39,587 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:24:39,587 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:24:39,587 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:24:39,587 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_97092ec4-44ab-4d3f-a32a-35665ec4dc57/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97092ec4-44ab-4d3f-a32a-35665ec4dc57/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d0faf19803047b9d51fb440293a8075aae4a757b1a8a36a5355760a1968a70e [2022-12-13 18:24:39,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:24:39,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:24:39,785 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:24:39,786 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:24:39,786 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:24:39,787 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97092ec4-44ab-4d3f-a32a-35665ec4dc57/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M4-1.c [2022-12-13 18:24:42,316 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:24:42,572 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:24:42,573 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97092ec4-44ab-4d3f-a32a-35665ec4dc57/sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M4-1.c [2022-12-13 18:24:42,584 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97092ec4-44ab-4d3f-a32a-35665ec4dc57/bin/uautomizer-uyxdKDjOR8/data/47cf6a368/4de8a1d858f04b799168661ba47e5199/FLAGfb3e89a94 [2022-12-13 18:24:42,596 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97092ec4-44ab-4d3f-a32a-35665ec4dc57/bin/uautomizer-uyxdKDjOR8/data/47cf6a368/4de8a1d858f04b799168661ba47e5199 [2022-12-13 18:24:42,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:24:42,600 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:24:42,601 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:24:42,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:24:42,603 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:24:42,604 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:24:42" (1/1) ... [2022-12-13 18:24:42,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@357b8a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:24:42, skipping insertion in model container [2022-12-13 18:24:42,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:24:42" (1/1) ... [2022-12-13 18:24:42,610 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:24:42,670 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:24:42,816 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_97092ec4-44ab-4d3f-a32a-35665ec4dc57/sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M4-1.c[1510,1523] [2022-12-13 18:24:42,870 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 18:24:42,871 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 18:24:42,873 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-13 18:24:42,877 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 18:24:42,878 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 18:24:42,878 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-13 18:24:42,879 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 18:24:42,879 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 18:24:42,893 WARN L623 FunctionHandler]: Unknown extern function ecrobot_status_monitor [2022-12-13 18:24:42,893 WARN L623 FunctionHandler]: Unknown extern function write_mode_on_lcd [2022-12-13 18:24:43,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:24:43,055 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:24:43,064 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_97092ec4-44ab-4d3f-a32a-35665ec4dc57/sv-benchmarks/c/seq-mthreaded/rekh_nxt.1.M4-1.c[1510,1523] [2022-12-13 18:24:43,076 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 18:24:43,076 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 18:24:43,077 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-13 18:24:43,078 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 18:24:43,079 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 18:24:43,079 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-13 18:24:43,079 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 18:24:43,079 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 18:24:43,083 WARN L623 FunctionHandler]: Unknown extern function ecrobot_status_monitor [2022-12-13 18:24:43,083 WARN L623 FunctionHandler]: Unknown extern function write_mode_on_lcd [2022-12-13 18:24:43,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:24:43,194 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:24:43,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:24:43 WrapperNode [2022-12-13 18:24:43,195 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:24:43,195 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:24:43,196 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:24:43,196 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:24:43,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:24:43" (1/1) ... [2022-12-13 18:24:43,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:24:43" (1/1) ... [2022-12-13 18:24:43,326 INFO L138 Inliner]: procedures = 55, calls = 2046, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 3968 [2022-12-13 18:24:43,326 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:24:43,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:24:43,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:24:43,327 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:24:43,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:24:43" (1/1) ... [2022-12-13 18:24:43,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:24:43" (1/1) ... [2022-12-13 18:24:43,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:24:43" (1/1) ... [2022-12-13 18:24:43,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:24:43" (1/1) ... [2022-12-13 18:24:43,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:24:43" (1/1) ... [2022-12-13 18:24:43,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:24:43" (1/1) ... [2022-12-13 18:24:43,424 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:24:43" (1/1) ... [2022-12-13 18:24:43,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:24:43" (1/1) ... [2022-12-13 18:24:43,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:24:43,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:24:43,446 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:24:43,446 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:24:43,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:24:43" (1/1) ... [2022-12-13 18:24:43,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:24:43,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97092ec4-44ab-4d3f-a32a-35665ec4dc57/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:24:43,468 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97092ec4-44ab-4d3f-a32a-35665ec4dc57/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:24:43,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97092ec4-44ab-4d3f-a32a-35665ec4dc57/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:24:43,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:24:43,501 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-12-13 18:24:43,501 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-12-13 18:24:43,501 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-12-13 18:24:43,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-12-13 18:24:43,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 18:24:43,502 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-12-13 18:24:43,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-12-13 18:24:43,502 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-12-13 18:24:43,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-12-13 18:24:43,502 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-12-13 18:24:43,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-12-13 18:24:43,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 18:24:43,503 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-12-13 18:24:43,503 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-12-13 18:24:43,503 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-12-13 18:24:43,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-12-13 18:24:43,503 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-13 18:24:43,503 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-13 18:24:43,503 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-13 18:24:43,503 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-13 18:24:43,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 18:24:43,503 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-12-13 18:24:43,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-12-13 18:24:43,504 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2022-12-13 18:24:43,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2022-12-13 18:24:43,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 18:24:43,504 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-12-13 18:24:43,504 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-12-13 18:24:43,504 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 18:24:43,504 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 18:24:43,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 18:24:43,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:24:43,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:24:43,505 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-12-13 18:24:43,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-12-13 18:24:43,505 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-12-13 18:24:43,505 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-12-13 18:24:43,505 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-12-13 18:24:43,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-12-13 18:24:43,807 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:24:43,809 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:24:51,112 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:24:51,133 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:24:51,133 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 18:24:51,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:24:51 BoogieIcfgContainer [2022-12-13 18:24:51,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:24:51,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:24:51,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:24:51,143 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:24:51,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:24:42" (1/3) ... [2022-12-13 18:24:51,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ccc512c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:24:51, skipping insertion in model container [2022-12-13 18:24:51,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:24:43" (2/3) ... [2022-12-13 18:24:51,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ccc512c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:24:51, skipping insertion in model container [2022-12-13 18:24:51,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:24:51" (3/3) ... [2022-12-13 18:24:51,145 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_nxt.1.M4-1.c [2022-12-13 18:24:51,158 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:24:51,158 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 18:24:51,218 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:24:51,222 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;@1deb199a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:24:51,222 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 18:24:51,229 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) [2022-12-13 18:24:51,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8483 [2022-12-13 18:24:51,706 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:24:51,708 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] [2022-12-13 18:24:51,709 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:24:51,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:24:51,716 INFO L85 PathProgramCache]: Analyzing trace with hash -767459317, now seen corresponding path program 1 times [2022-12-13 18:24:51,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:24:51,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315599972] [2022-12-13 18:24:51,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:24:51,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms