./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M1.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_f99f590e-7b96-4c8c-99ea-4eb3073916c8/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99f590e-7b96-4c8c-99ea-4eb3073916c8/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_f99f590e-7b96-4c8c-99ea-4eb3073916c8/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99f590e-7b96-4c8c-99ea-4eb3073916c8/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99f590e-7b96-4c8c-99ea-4eb3073916c8/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_f99f590e-7b96-4c8c-99ea-4eb3073916c8/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 90b68e26a5af3ce5617cd52d8dc6ef78c48b8482383cda056e3d7235d8bf007f --- 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 08:06:09,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:06:09,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:06:09,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:06:09,468 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:06:09,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:06:09,470 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:06:09,471 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:06:09,473 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:06:09,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:06:09,474 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:06:09,476 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:06:09,476 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:06:09,477 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:06:09,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:06:09,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:06:09,480 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:06:09,481 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:06:09,482 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:06:09,484 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:06:09,485 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:06:09,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:06:09,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:06:09,488 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:06:09,491 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:06:09,491 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:06:09,492 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:06:09,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:06:09,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:06:09,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:06:09,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:06:09,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:06:09,495 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:06:09,496 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:06:09,497 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:06:09,497 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:06:09,498 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:06:09,498 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:06:09,498 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:06:09,499 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:06:09,499 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:06:09,500 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99f590e-7b96-4c8c-99ea-4eb3073916c8/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 08:06:09,521 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:06:09,521 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:06:09,522 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:06:09,522 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:06:09,522 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:06:09,523 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:06:09,523 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:06:09,523 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:06:09,523 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:06:09,523 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:06:09,523 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:06:09,524 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:06:09,524 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:06:09,524 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:06:09,524 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:06:09,524 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:06:09,524 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:06:09,524 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:06:09,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:06:09,525 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:06:09,525 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:06:09,526 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:06:09,526 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:06:09,526 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:06:09,526 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:06:09,526 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:06:09,526 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:06:09,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:06:09,527 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:06:09,527 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:06:09,527 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:06:09,527 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:06:09,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:06:09,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:06:09,528 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:06:09,528 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:06:09,528 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:06:09,528 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:06:09,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:06:09,528 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:06:09,529 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:06:09,529 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_f99f590e-7b96-4c8c-99ea-4eb3073916c8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99f590e-7b96-4c8c-99ea-4eb3073916c8/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90b68e26a5af3ce5617cd52d8dc6ef78c48b8482383cda056e3d7235d8bf007f [2022-12-14 08:06:09,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:06:09,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:06:09,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:06:09,751 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:06:09,752 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:06:09,753 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99f590e-7b96-4c8c-99ea-4eb3073916c8/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M1.c [2022-12-14 08:06:12,375 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:06:12,606 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:06:12,607 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99f590e-7b96-4c8c-99ea-4eb3073916c8/sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M1.c [2022-12-14 08:06:12,623 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99f590e-7b96-4c8c-99ea-4eb3073916c8/bin/utaipan-gh47qXpMRh/data/1ba6833bc/b099a2b37b8d4388a9700031bd678f65/FLAG78809bd3e [2022-12-14 08:06:12,634 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99f590e-7b96-4c8c-99ea-4eb3073916c8/bin/utaipan-gh47qXpMRh/data/1ba6833bc/b099a2b37b8d4388a9700031bd678f65 [2022-12-14 08:06:12,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:06:12,637 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:06:12,637 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:06:12,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:06:12,640 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:06:12,641 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:06:12" (1/1) ... [2022-12-14 08:06:12,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73118dac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:06:12, skipping insertion in model container [2022-12-14 08:06:12,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:06:12" (1/1) ... [2022-12-14 08:06:12,647 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:06:12,698 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:06:12,824 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_f99f590e-7b96-4c8c-99ea-4eb3073916c8/sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M1.c[1806,1819] [2022-12-14 08:06:12,894 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 08:06:12,895 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 08:06:12,896 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-14 08:06:12,899 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 08:06:12,900 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 08:06:12,900 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 08:06:12,901 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 08:06:12,909 WARN L623 FunctionHandler]: Unknown extern function __startrek_get_pi_lock [2022-12-14 08:06:12,910 WARN L623 FunctionHandler]: Unknown extern function __startrek_release_pi_lock [2022-12-14 08:06:12,911 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-14 08:06:13,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:06:13,170 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:06:13,179 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_f99f590e-7b96-4c8c-99ea-4eb3073916c8/sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M1.c[1806,1819] [2022-12-14 08:06:13,190 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 08:06:13,191 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-14 08:06:13,191 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-14 08:06:13,192 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 08:06:13,193 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 08:06:13,193 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 08:06:13,193 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-14 08:06:13,195 WARN L623 FunctionHandler]: Unknown extern function __startrek_get_pi_lock [2022-12-14 08:06:13,196 WARN L623 FunctionHandler]: Unknown extern function __startrek_release_pi_lock [2022-12-14 08:06:13,196 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-14 08:06:13,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:06:13,369 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:06:13,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:06:13 WrapperNode [2022-12-14 08:06:13,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:06:13,370 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:06:13,371 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:06:13,371 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:06:13,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:06:13" (1/1) ... [2022-12-14 08:06:13,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:06:13" (1/1) ... [2022-12-14 08:06:13,591 INFO L138 Inliner]: procedures = 70, calls = 5190, calls flagged for inlining = 25, calls inlined = 25, statements flattened = 9710 [2022-12-14 08:06:13,592 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:06:13,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:06:13,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:06:13,593 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:06:13,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:06:13" (1/1) ... [2022-12-14 08:06:13,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:06:13" (1/1) ... [2022-12-14 08:06:13,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:06:13" (1/1) ... [2022-12-14 08:06:13,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:06:13" (1/1) ... [2022-12-14 08:06:13,859 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:06:13" (1/1) ... [2022-12-14 08:06:13,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:06:13" (1/1) ... [2022-12-14 08:06:13,894 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:06:13" (1/1) ... [2022-12-14 08:06:13,906 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:06:13" (1/1) ... [2022-12-14 08:06:13,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:06:13,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:06:13,939 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:06:13,939 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:06:13,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:06:13" (1/1) ... [2022-12-14 08:06:13,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:06:13,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99f590e-7b96-4c8c-99ea-4eb3073916c8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:06:13,964 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99f590e-7b96-4c8c-99ea-4eb3073916c8/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:06:13,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f99f590e-7b96-4c8c-99ea-4eb3073916c8/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:06:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:06:13,999 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-12-14 08:06:13,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-12-14 08:06:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-12-14 08:06:14,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-12-14 08:06:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-12-14 08:06:14,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-12-14 08:06:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:06:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-12-14 08:06:14,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-12-14 08:06:14,000 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-12-14 08:06:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-12-14 08:06:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-12-14 08:06:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-12-14 08:06:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-12-14 08:06:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-12-14 08:06:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 08:06:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-12-14 08:06:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-12-14 08:06:14,001 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_version [2022-12-14 08:06:14,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_version [2022-12-14 08:06:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-12-14 08:06:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-12-14 08:06:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-12-14 08:06:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-12-14 08:06:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-12-14 08:06:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-12-14 08:06:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-14 08:06:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-14 08:06:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_version [2022-12-14 08:06:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_version [2022-12-14 08:06:14,002 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-14 08:06:14,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-14 08:06:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-12-14 08:06:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-12-14 08:06:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:06:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 08:06:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-12-14 08:06:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-12-14 08:06:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-12-14 08:06:14,003 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-12-14 08:06:14,003 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-12-14 08:06:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-12-14 08:06:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-12-14 08:06:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-12-14 08:06:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 08:06:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 08:06:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:06:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:06:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:06:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-12-14 08:06:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-12-14 08:06:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-12-14 08:06:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-12-14 08:06:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-12-14 08:06:14,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-12-14 08:06:14,004 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-12-14 08:06:14,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-12-14 08:06:14,503 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:06:14,504 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:06:24,400 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:06:24,812 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:06:24,812 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 08:06:24,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:06:24 BoogieIcfgContainer [2022-12-14 08:06:24,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:06:24,819 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:06:24,819 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:06:24,821 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:06:24,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:06:12" (1/3) ... [2022-12-14 08:06:24,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@609a2f53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:06:24, skipping insertion in model container [2022-12-14 08:06:24,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:06:13" (2/3) ... [2022-12-14 08:06:24,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@609a2f53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:06:24, skipping insertion in model container [2022-12-14 08:06:24,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:06:24" (3/3) ... [2022-12-14 08:06:24,823 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_aso.3.M1.c [2022-12-14 08:06:24,836 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:06:24,836 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 08:06:24,917 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:06:24,921 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;@1ed595a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:06:24,922 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 08:06:24,932 INFO L276 IsEmpty]: Start isEmpty. Operand has 3531 states, 1995 states have (on average 1.1654135338345866) internal successors, (2325), 2000 states have internal predecessors, (2325), 1509 states have call successors, (1509), 25 states have call predecessors, (1509), 25 states have return successors, (1509), 1507 states have call predecessors, (1509), 1509 states have call successors, (1509) [2022-12-14 08:06:24,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 952 [2022-12-14 08:06:24,973 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:06:24,973 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 08:06:24,974 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:06:24,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:06:24,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1082572210, now seen corresponding path program 1 times [2022-12-14 08:06:24,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:06:24,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387628283] [2022-12-14 08:06:24,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:06:24,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms