./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-2.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_da6d67bb-0d09-468a-9243-43f0db73cc55/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da6d67bb-0d09-468a-9243-43f0db73cc55/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_da6d67bb-0d09-468a-9243-43f0db73cc55/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da6d67bb-0d09-468a-9243-43f0db73cc55/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da6d67bb-0d09-468a-9243-43f0db73cc55/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_da6d67bb-0d09-468a-9243-43f0db73cc55/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 64d7e25d2b411aa83621d9b12af66c6bbf36b903d9ea3c8a9dc9ced9d60fa3c1 --- 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 06:33:35,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:33:35,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:33:35,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:33:35,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:33:35,400 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:33:35,401 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:33:35,402 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:33:35,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:33:35,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:33:35,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:33:35,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:33:35,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:33:35,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:33:35,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:33:35,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:33:35,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:33:35,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:33:35,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:33:35,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:33:35,411 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:33:35,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:33:35,413 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:33:35,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:33:35,415 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:33:35,415 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:33:35,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:33:35,416 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:33:35,416 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:33:35,417 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:33:35,417 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:33:35,418 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:33:35,418 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:33:35,419 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:33:35,419 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:33:35,419 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:33:35,420 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:33:35,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:33:35,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:33:35,421 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:33:35,421 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:33:35,422 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da6d67bb-0d09-468a-9243-43f0db73cc55/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 06:33:35,435 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:33:35,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:33:35,435 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:33:35,436 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:33:35,436 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:33:35,436 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:33:35,436 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:33:35,436 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:33:35,436 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:33:35,437 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:33:35,437 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:33:35,437 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:33:35,437 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:33:35,437 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:33:35,437 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:33:35,437 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:33:35,437 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:33:35,437 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:33:35,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:33:35,438 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:33:35,438 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:33:35,438 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:33:35,438 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:33:35,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:33:35,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:33:35,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:33:35,439 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:33:35,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:33:35,439 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:33:35,439 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:33:35,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:33:35,439 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:33:35,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:33:35,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:33:35,439 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:33:35,439 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:33:35,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:33:35,440 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:33:35,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:33:35,440 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:33:35,440 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:33:35,440 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_da6d67bb-0d09-468a-9243-43f0db73cc55/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da6d67bb-0d09-468a-9243-43f0db73cc55/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64d7e25d2b411aa83621d9b12af66c6bbf36b903d9ea3c8a9dc9ced9d60fa3c1 [2022-12-14 06:33:35,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:33:35,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:33:35,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:33:35,647 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:33:35,648 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:33:35,649 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da6d67bb-0d09-468a-9243-43f0db73cc55/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-2.c [2022-12-14 06:33:38,201 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:33:38,568 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:33:38,568 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da6d67bb-0d09-468a-9243-43f0db73cc55/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-2.c [2022-12-14 06:33:38,593 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da6d67bb-0d09-468a-9243-43f0db73cc55/bin/utaipan-gh47qXpMRh/data/3666cf104/cc2474988738483babec6f31c55fde66/FLAG1d603d7a6 [2022-12-14 06:33:38,603 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da6d67bb-0d09-468a-9243-43f0db73cc55/bin/utaipan-gh47qXpMRh/data/3666cf104/cc2474988738483babec6f31c55fde66 [2022-12-14 06:33:38,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:33:38,607 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:33:38,607 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:33:38,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:33:38,610 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:33:38,611 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:33:38" (1/1) ... [2022-12-14 06:33:38,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3541bf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:33:38, skipping insertion in model container [2022-12-14 06:33:38,612 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:33:38" (1/1) ... [2022-12-14 06:33:38,618 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:33:38,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:33:38,908 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_da6d67bb-0d09-468a-9243-43f0db73cc55/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-2.c[2232,2245] [2022-12-14 06:33:39,029 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 06:33:39,030 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 06:33:39,033 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-14 06:33:39,036 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 06:33:39,037 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 06:33:39,037 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 06:33:39,038 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 06:33:39,058 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-14 06:33:39,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:33:39,682 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:33:39,692 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_da6d67bb-0d09-468a-9243-43f0db73cc55/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-2.c[2232,2245] [2022-12-14 06:33:39,702 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 06:33:39,702 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 06:33:39,703 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-14 06:33:39,704 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 06:33:39,704 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 06:33:39,705 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 06:33:39,705 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 06:33:39,707 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-14 06:33:40,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:33:40,215 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:33:40,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:33:40 WrapperNode [2022-12-14 06:33:40,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:33:40,217 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:33:40,217 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:33:40,217 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:33:40,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:33:40" (1/1) ... [2022-12-14 06:33:40,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:33:40" (1/1) ... [2022-12-14 06:33:41,077 INFO L138 Inliner]: procedures = 60, calls = 19341, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 41957 [2022-12-14 06:33:41,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:33:41,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:33:41,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:33:41,078 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:33:41,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:33:40" (1/1) ... [2022-12-14 06:33:41,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:33:40" (1/1) ... [2022-12-14 06:33:41,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:33:40" (1/1) ... [2022-12-14 06:33:41,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:33:40" (1/1) ... [2022-12-14 06:33:41,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:33:40" (1/1) ... [2022-12-14 06:33:41,677 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:33:40" (1/1) ... [2022-12-14 06:33:41,744 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:33:40" (1/1) ... [2022-12-14 06:33:41,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:33:40" (1/1) ... [2022-12-14 06:33:41,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:33:41,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:33:41,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:33:41,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:33:41,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:33:40" (1/1) ... [2022-12-14 06:33:41,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:33:41,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da6d67bb-0d09-468a-9243-43f0db73cc55/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:33:41,932 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da6d67bb-0d09-468a-9243-43f0db73cc55/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:33:41,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_da6d67bb-0d09-468a-9243-43f0db73cc55/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:33:41,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:33:41,964 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-12-14 06:33:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-12-14 06:33:41,964 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-12-14 06:33:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-12-14 06:33:41,965 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-12-14 06:33:41,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-12-14 06:33:41,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 06:33:41,965 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-12-14 06:33:41,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-12-14 06:33:41,965 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-12-14 06:33:41,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-12-14 06:33:41,965 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-12-14 06:33:41,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-12-14 06:33:41,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 06:33:41,966 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-12-14 06:33:41,966 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-12-14 06:33:41,966 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-12-14 06:33:41,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-12-14 06:33:41,966 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-12-14 06:33:41,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-12-14 06:33:41,966 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-14 06:33:41,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-14 06:33:41,967 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-14 06:33:41,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-14 06:33:41,967 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-12-14 06:33:41,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-12-14 06:33:41,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 06:33:41,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 06:33:41,967 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-12-14 06:33:41,967 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-12-14 06:33:41,967 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-12-14 06:33:41,967 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-12-14 06:33:41,968 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-12-14 06:33:41,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-12-14 06:33:41,968 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-12-14 06:33:41,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-12-14 06:33:41,968 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 06:33:41,968 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 06:33:41,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:33:41,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:33:41,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:33:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-12-14 06:33:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-12-14 06:33:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-12-14 06:33:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-12-14 06:33:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-12-14 06:33:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-12-14 06:33:41,969 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-12-14 06:33:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-12-14 06:33:43,326 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:33:43,328 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:34:39,525 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:34:40,363 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:34:40,363 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 06:34:40,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:34:40 BoogieIcfgContainer [2022-12-14 06:34:40,371 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:34:40,373 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:34:40,373 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:34:40,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:34:40,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:33:38" (1/3) ... [2022-12-14 06:34:40,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65384b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:34:40, skipping insertion in model container [2022-12-14 06:34:40,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:33:40" (2/3) ... [2022-12-14 06:34:40,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65384b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:34:40, skipping insertion in model container [2022-12-14 06:34:40,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:34:40" (3/3) ... [2022-12-14 06:34:40,378 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_aso.1.M4-2.c [2022-12-14 06:34:40,391 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:34:40,391 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 06:34:40,673 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:34:40,679 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;@1eef2215, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:34:40,680 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 06:34:40,715 INFO L276 IsEmpty]: Start isEmpty. Operand has 12585 states, 8154 states have (on average 1.3101545253863134) internal successors, (10683), 8267 states have internal predecessors, (10683), 4408 states have call successors, (4408), 21 states have call predecessors, (4408), 21 states have return successors, (4408), 4406 states have call predecessors, (4408), 4408 states have call successors, (4408) [2022-12-14 06:34:41,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4794 [2022-12-14 06:34:41,198 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:34:41,201 INFO L195 NwaCegarLoop]: trace histogram [551, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:34:41,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:34:41,206 INFO L85 PathProgramCache]: Analyzing trace with hash -811261987, now seen corresponding path program 1 times [2022-12-14 06:34:41,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:34:41,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248863249] [2022-12-14 06:34:41,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:34:41,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms