./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 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04502835-f299-4d0a-87db-faf367937ce1/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04502835-f299-4d0a-87db-faf367937ce1/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04502835-f299-4d0a-87db-faf367937ce1/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04502835-f299-4d0a-87db-faf367937ce1/bin/utaipan-ByfvJB40ur/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_04502835-f299-4d0a-87db-faf367937ce1/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04502835-f299-4d0a-87db-faf367937ce1/bin/utaipan-ByfvJB40ur --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-38b53e6 [2022-11-26 01:05:42,136 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 01:05:42,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 01:05:42,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 01:05:42,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 01:05:42,182 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 01:05:42,184 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 01:05:42,187 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 01:05:42,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 01:05:42,194 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 01:05:42,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 01:05:42,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 01:05:42,199 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 01:05:42,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 01:05:42,204 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 01:05:42,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 01:05:42,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 01:05:42,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 01:05:42,211 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 01:05:42,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 01:05:42,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 01:05:42,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 01:05:42,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 01:05:42,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 01:05:42,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 01:05:42,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 01:05:42,236 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 01:05:42,237 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 01:05:42,239 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 01:05:42,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 01:05:42,240 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 01:05:42,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 01:05:42,242 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 01:05:42,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 01:05:42,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 01:05:42,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 01:05:42,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 01:05:42,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 01:05:42,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 01:05:42,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 01:05:42,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 01:05:42,250 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04502835-f299-4d0a-87db-faf367937ce1/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-26 01:05:42,294 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 01:05:42,294 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 01:05:42,295 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 01:05:42,295 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 01:05:42,296 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 01:05:42,297 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 01:05:42,297 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 01:05:42,297 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 01:05:42,297 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 01:05:42,298 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 01:05:42,299 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 01:05:42,299 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 01:05:42,299 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 01:05:42,300 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 01:05:42,300 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 01:05:42,300 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 01:05:42,300 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 01:05:42,301 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 01:05:42,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 01:05:42,302 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 01:05:42,302 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 01:05:42,302 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 01:05:42,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 01:05:42,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 01:05:42,303 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 01:05:42,303 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 01:05:42,304 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 01:05:42,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 01:05:42,305 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 01:05:42,305 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 01:05:42,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 01:05:42,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 01:05:42,306 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:05:42,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 01:05:42,306 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 01:05:42,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 01:05:42,307 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 01:05:42,307 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 01:05:42,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 01:05:42,307 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 01:05:42,308 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 01:05:42,308 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_04502835-f299-4d0a-87db-faf367937ce1/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04502835-f299-4d0a-87db-faf367937ce1/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90b68e26a5af3ce5617cd52d8dc6ef78c48b8482383cda056e3d7235d8bf007f [2022-11-26 01:05:42,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 01:05:42,624 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 01:05:42,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 01:05:42,628 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 01:05:42,628 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 01:05:42,630 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04502835-f299-4d0a-87db-faf367937ce1/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M1.c [2022-11-26 01:05:45,608 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 01:05:46,062 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 01:05:46,063 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04502835-f299-4d0a-87db-faf367937ce1/sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M1.c [2022-11-26 01:05:46,091 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04502835-f299-4d0a-87db-faf367937ce1/bin/utaipan-ByfvJB40ur/data/0da4ca12f/7e6e2ec4598a4aa88ffdfe3336f4d4d0/FLAGdb648d953 [2022-11-26 01:05:46,107 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04502835-f299-4d0a-87db-faf367937ce1/bin/utaipan-ByfvJB40ur/data/0da4ca12f/7e6e2ec4598a4aa88ffdfe3336f4d4d0 [2022-11-26 01:05:46,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 01:05:46,115 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 01:05:46,118 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 01:05:46,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 01:05:46,122 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 01:05:46,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:05:46" (1/1) ... [2022-11-26 01:05:46,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4940589b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:05:46, skipping insertion in model container [2022-11-26 01:05:46,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:05:46" (1/1) ... [2022-11-26 01:05:46,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 01:05:46,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 01:05:46,517 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_04502835-f299-4d0a-87db-faf367937ce1/sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M1.c[1806,1819] [2022-11-26 01:05:46,662 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-11-26 01:05:46,663 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-11-26 01:05:46,675 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-11-26 01:05:46,684 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-26 01:05:46,697 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-26 01:05:46,697 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-26 01:05:46,698 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-26 01:05:46,711 WARN L623 FunctionHandler]: Unknown extern function __startrek_get_pi_lock [2022-11-26 01:05:46,716 WARN L623 FunctionHandler]: Unknown extern function __startrek_release_pi_lock [2022-11-26 01:05:46,717 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-11-26 01:05:47,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:05:47,331 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 01:05:47,360 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_04502835-f299-4d0a-87db-faf367937ce1/sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M1.c[1806,1819] [2022-11-26 01:05:47,386 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-11-26 01:05:47,387 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-11-26 01:05:47,388 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-11-26 01:05:47,389 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-26 01:05:47,400 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-26 01:05:47,401 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-26 01:05:47,401 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-26 01:05:47,404 WARN L623 FunctionHandler]: Unknown extern function __startrek_get_pi_lock [2022-11-26 01:05:47,405 WARN L623 FunctionHandler]: Unknown extern function __startrek_release_pi_lock [2022-11-26 01:05:47,405 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-11-26 01:05:47,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:05:47,723 INFO L208 MainTranslator]: Completed translation [2022-11-26 01:05:47,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:05:47 WrapperNode [2022-11-26 01:05:47,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 01:05:47,726 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 01:05:47,726 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 01:05:47,726 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 01:05:47,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:05:47" (1/1) ... [2022-11-26 01:05:47,832 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:05:47" (1/1) ... [2022-11-26 01:05:48,146 INFO L138 Inliner]: procedures = 70, calls = 5190, calls flagged for inlining = 25, calls inlined = 25, statements flattened = 9710 [2022-11-26 01:05:48,147 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 01:05:48,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 01:05:48,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 01:05:48,148 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 01:05:48,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:05:47" (1/1) ... [2022-11-26 01:05:48,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:05:47" (1/1) ... [2022-11-26 01:05:48,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:05:47" (1/1) ... [2022-11-26 01:05:48,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:05:47" (1/1) ... [2022-11-26 01:05:48,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:05:47" (1/1) ... [2022-11-26 01:05:48,510 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:05:47" (1/1) ... [2022-11-26 01:05:48,533 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:05:47" (1/1) ... [2022-11-26 01:05:48,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:05:47" (1/1) ... [2022-11-26 01:05:48,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 01:05:48,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 01:05:48,602 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 01:05:48,602 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 01:05:48,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:05:47" (1/1) ... [2022-11-26 01:05:48,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:05:48,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04502835-f299-4d0a-87db-faf367937ce1/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:05:48,648 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04502835-f299-4d0a-87db-faf367937ce1/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 01:05:48,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04502835-f299-4d0a-87db-faf367937ce1/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 01:05:48,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 01:05:48,698 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-11-26 01:05:48,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-11-26 01:05:48,699 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-26 01:05:48,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-26 01:05:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-11-26 01:05:48,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-11-26 01:05:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 01:05:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-26 01:05:48,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-26 01:05:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-26 01:05:48,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-26 01:05:48,702 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-11-26 01:05:48,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-11-26 01:05:48,702 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-11-26 01:05:48,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-11-26 01:05:48,702 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 01:05:48,703 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-26 01:05:48,703 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-26 01:05:48,703 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_version [2022-11-26 01:05:48,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_version [2022-11-26 01:05:48,703 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-11-26 01:05:48,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-11-26 01:05:48,704 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-11-26 01:05:48,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-11-26 01:05:48,704 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-11-26 01:05:48,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-11-26 01:05:48,705 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-26 01:05:48,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-26 01:05:48,706 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_version [2022-11-26 01:05:48,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_version [2022-11-26 01:05:48,706 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-26 01:05:48,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-26 01:05:48,707 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-11-26 01:05:48,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-11-26 01:05:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 01:05:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 01:05:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-26 01:05:48,708 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-26 01:05:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-11-26 01:05:48,708 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-11-26 01:05:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-11-26 01:05:48,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-11-26 01:05:48,709 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-11-26 01:05:48,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-11-26 01:05:48,778 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-26 01:05:48,778 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-26 01:05:48,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 01:05:48,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 01:05:48,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 01:05:48,778 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-11-26 01:05:48,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-11-26 01:05:48,779 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-26 01:05:48,779 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-26 01:05:48,779 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-11-26 01:05:48,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-11-26 01:05:48,779 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-11-26 01:05:48,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-11-26 01:05:49,613 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 01:05:49,616 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 01:06:06,415 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 01:06:07,074 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 01:06:07,074 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 01:06:07,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:06:07 BoogieIcfgContainer [2022-11-26 01:06:07,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 01:06:07,084 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 01:06:07,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 01:06:07,088 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 01:06:07,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 01:05:46" (1/3) ... [2022-11-26 01:06:07,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e834444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:06:07, skipping insertion in model container [2022-11-26 01:06:07,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:05:47" (2/3) ... [2022-11-26 01:06:07,092 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e834444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:06:07, skipping insertion in model container [2022-11-26 01:06:07,092 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:06:07" (3/3) ... [2022-11-26 01:06:07,094 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_aso.3.M1.c [2022-11-26 01:06:07,115 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 01:06:07,116 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 01:06:07,266 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 01:06:07,276 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;@fce6786, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 01:06:07,277 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 01:06:07,296 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) [2022-11-26 01:06:07,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 952 [2022-11-26 01:06:07,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:06:07,379 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] [2022-11-26 01:06:07,380 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:06:07,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:06:07,387 INFO L85 PathProgramCache]: Analyzing trace with hash 245865012, now seen corresponding path program 1 times [2022-11-26 01:06:07,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:06:07,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217944981] [2022-11-26 01:06:07,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:06:07,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms