./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.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_a6cfa111-0dbd-44a9-b050-f49361fad116/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6cfa111-0dbd-44a9-b050-f49361fad116/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6cfa111-0dbd-44a9-b050-f49361fad116/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6cfa111-0dbd-44a9-b050-f49361fad116/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6cfa111-0dbd-44a9-b050-f49361fad116/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6cfa111-0dbd-44a9-b050-f49361fad116/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dc59d2eb5280d2e1e7e9c76bdd35770d97977523b6f11f8f4ccd72ffe423d428 --- 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 [2022-12-14 13:12:16,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 13:12:16,554 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 13:12:16,571 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 13:12:16,571 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 13:12:16,572 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 13:12:16,574 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 13:12:16,575 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 13:12:16,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 13:12:16,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 13:12:16,578 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 13:12:16,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 13:12:16,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 13:12:16,580 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 13:12:16,581 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 13:12:16,582 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 13:12:16,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 13:12:16,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 13:12:16,586 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 13:12:16,587 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 13:12:16,589 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 13:12:16,590 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 13:12:16,591 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 13:12:16,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 13:12:16,595 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 13:12:16,595 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 13:12:16,595 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 13:12:16,596 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 13:12:16,596 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 13:12:16,597 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 13:12:16,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 13:12:16,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 13:12:16,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 13:12:16,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 13:12:16,600 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 13:12:16,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 13:12:16,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 13:12:16,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 13:12:16,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 13:12:16,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 13:12:16,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 13:12:16,604 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6cfa111-0dbd-44a9-b050-f49361fad116/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 13:12:16,622 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 13:12:16,622 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 13:12:16,622 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 13:12:16,622 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 13:12:16,623 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 13:12:16,623 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 13:12:16,623 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 13:12:16,623 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 13:12:16,624 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 13:12:16,624 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 13:12:16,624 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 13:12:16,624 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 13:12:16,624 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 13:12:16,624 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 13:12:16,624 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 13:12:16,625 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 13:12:16,625 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 13:12:16,625 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 13:12:16,626 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 13:12:16,626 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 13:12:16,626 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 13:12:16,626 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 13:12:16,626 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 13:12:16,626 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 13:12:16,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 13:12:16,627 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 13:12:16,627 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 13:12:16,627 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 13:12:16,627 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 13:12:16,627 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 13:12:16,627 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 13:12:16,628 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 13:12:16,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:12:16,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 13:12:16,628 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 13:12:16,628 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 13:12:16,628 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 13:12:16,629 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 13:12:16,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 13:12:16,629 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 13:12:16,629 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 13:12:16,629 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_a6cfa111-0dbd-44a9-b050-f49361fad116/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6cfa111-0dbd-44a9-b050-f49361fad116/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc59d2eb5280d2e1e7e9c76bdd35770d97977523b6f11f8f4ccd72ffe423d428 [2022-12-14 13:12:16,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 13:12:16,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 13:12:16,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 13:12:16,836 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 13:12:16,837 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 13:12:16,838 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6cfa111-0dbd-44a9-b050-f49361fad116/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-1.c [2022-12-14 13:12:19,378 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 13:12:19,631 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 13:12:19,631 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6cfa111-0dbd-44a9-b050-f49361fad116/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-1.c [2022-12-14 13:12:19,648 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6cfa111-0dbd-44a9-b050-f49361fad116/bin/utaipan-gh47qXpMRh/data/c3e2e3213/e041ce87e4e94e62b54017418b1eeaa4/FLAGb37511914 [2022-12-14 13:12:19,658 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6cfa111-0dbd-44a9-b050-f49361fad116/bin/utaipan-gh47qXpMRh/data/c3e2e3213/e041ce87e4e94e62b54017418b1eeaa4 [2022-12-14 13:12:19,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 13:12:19,661 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 13:12:19,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 13:12:19,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 13:12:19,665 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 13:12:19,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:12:19" (1/1) ... [2022-12-14 13:12:19,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@312e905e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:12:19, skipping insertion in model container [2022-12-14 13:12:19,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 01:12:19" (1/1) ... [2022-12-14 13:12:19,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 13:12:19,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 13:12:19,852 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_a6cfa111-0dbd-44a9-b050-f49361fad116/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-1.c[1807,1820] [2022-12-14 13:12:19,917 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 13:12:19,918 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 13:12:19,919 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-14 13:12:19,922 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 13:12:19,923 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 13:12:19,923 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 13:12:19,923 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 13:12:19,931 WARN L623 FunctionHandler]: Unknown extern function __startrek_get_pi_lock [2022-12-14 13:12:19,932 WARN L623 FunctionHandler]: Unknown extern function __startrek_release_pi_lock [2022-12-14 13:12:19,933 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-14 13:12:20,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:12:20,189 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 13:12:20,199 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_a6cfa111-0dbd-44a9-b050-f49361fad116/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-1.c[1807,1820] [2022-12-14 13:12:20,211 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 13:12:20,211 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 13:12:20,212 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-14 13:12:20,213 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 13:12:20,213 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 13:12:20,213 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 13:12:20,214 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 13:12:20,216 WARN L623 FunctionHandler]: Unknown extern function __startrek_get_pi_lock [2022-12-14 13:12:20,217 WARN L623 FunctionHandler]: Unknown extern function __startrek_release_pi_lock [2022-12-14 13:12:20,217 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-14 13:12:20,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 13:12:20,376 INFO L208 MainTranslator]: Completed translation [2022-12-14 13:12:20,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:12:20 WrapperNode [2022-12-14 13:12:20,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 13:12:20,377 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 13:12:20,377 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 13:12:20,377 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 13:12:20,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:12:20" (1/1) ... [2022-12-14 13:12:20,424 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:12:20" (1/1) ... [2022-12-14 13:12:20,587 INFO L138 Inliner]: procedures = 70, calls = 5188, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 9727 [2022-12-14 13:12:20,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 13:12:20,588 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 13:12:20,588 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 13:12:20,588 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 13:12:20,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:12:20" (1/1) ... [2022-12-14 13:12:20,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:12:20" (1/1) ... [2022-12-14 13:12:20,618 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:12:20" (1/1) ... [2022-12-14 13:12:20,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:12:20" (1/1) ... [2022-12-14 13:12:20,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:12:20" (1/1) ... [2022-12-14 13:12:20,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:12:20" (1/1) ... [2022-12-14 13:12:20,786 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:12:20" (1/1) ... [2022-12-14 13:12:20,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:12:20" (1/1) ... [2022-12-14 13:12:20,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 13:12:20,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 13:12:20,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 13:12:20,832 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 13:12:20,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:12:20" (1/1) ... [2022-12-14 13:12:20,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 13:12:20,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6cfa111-0dbd-44a9-b050-f49361fad116/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 13:12:20,865 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6cfa111-0dbd-44a9-b050-f49361fad116/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 13:12:20,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6cfa111-0dbd-44a9-b050-f49361fad116/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 13:12:20,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 13:12:20,891 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_trans [2022-12-14 13:12:20,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_trans [2022-12-14 13:12:20,892 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-12-14 13:12:20,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-12-14 13:12:20,892 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-12-14 13:12:20,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-12-14 13:12:20,892 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-12-14 13:12:20,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-12-14 13:12:20,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 13:12:20,893 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-12-14 13:12:20,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-12-14 13:12:20,893 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-12-14 13:12:20,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-12-14 13:12:20,893 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-12-14 13:12:20,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-12-14 13:12:20,893 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-12-14 13:12:20,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-12-14 13:12:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 13:12:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-12-14 13:12:20,894 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-12-14 13:12:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-12-14 13:12:20,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-12-14 13:12:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-12-14 13:12:20,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-12-14 13:12:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-12-14 13:12:20,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-12-14 13:12:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-14 13:12:20,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-14 13:12:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-14 13:12:20,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-14 13:12:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-12-14 13:12:20,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-12-14 13:12:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 13:12:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 13:12:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-12-14 13:12:20,896 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-12-14 13:12:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-12-14 13:12:20,896 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-12-14 13:12:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-12-14 13:12:20,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-12-14 13:12:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-12-14 13:12:20,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-12-14 13:12:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 13:12:20,897 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 13:12:20,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 13:12:20,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 13:12:20,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 13:12:20,897 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-12-14 13:12:20,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-12-14 13:12:20,897 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-12-14 13:12:20,897 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-12-14 13:12:20,897 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-12-14 13:12:20,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-12-14 13:12:20,898 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-12-14 13:12:20,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-12-14 13:12:21,417 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 13:12:21,419 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 13:12:32,039 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 13:12:32,466 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 13:12:32,466 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 13:12:32,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:12:32 BoogieIcfgContainer [2022-12-14 13:12:32,471 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 13:12:32,472 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 13:12:32,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 13:12:32,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 13:12:32,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 01:12:19" (1/3) ... [2022-12-14 13:12:32,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@203df619 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:12:32, skipping insertion in model container [2022-12-14 13:12:32,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 01:12:20" (2/3) ... [2022-12-14 13:12:32,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@203df619 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 01:12:32, skipping insertion in model container [2022-12-14 13:12:32,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 01:12:32" (3/3) ... [2022-12-14 13:12:32,477 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_aso.2.M1-1.c [2022-12-14 13:12:32,490 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 13:12:32,491 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 13:12:32,593 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 13:12:32,598 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=FINITE_AUTOMATA, 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;@489e8f72, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 13:12:32,598 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 13:12:32,608 INFO L276 IsEmpty]: Start isEmpty. Operand has 3522 states, 1990 states have (on average 1.1658291457286432) internal successors, (2320), 1995 states have internal predecessors, (2320), 1506 states have call successors, (1506), 24 states have call predecessors, (1506), 24 states have return successors, (1506), 1504 states have call predecessors, (1506), 1506 states have call successors, (1506) [2022-12-14 13:12:32,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 952 [2022-12-14 13:12:32,645 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 13:12:32,646 INFO L195 NwaCegarLoop]: trace histogram [210, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 13:12:32,646 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 13:12:32,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 13:12:32,650 INFO L85 PathProgramCache]: Analyzing trace with hash 283353139, now seen corresponding path program 1 times [2022-12-14 13:12:32,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 13:12:32,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624302040] [2022-12-14 13:12:32,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 13:12:32,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms