./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82ea4e5-debd-49c7-a995-ca50183c715e/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82ea4e5-debd-49c7-a995-ca50183c715e/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82ea4e5-debd-49c7-a995-ca50183c715e/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82ea4e5-debd-49c7-a995-ca50183c715e/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82ea4e5-debd-49c7-a995-ca50183c715e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82ea4e5-debd-49c7-a995-ca50183c715e/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d1acaf5881e7bc6fb96063443cb57a4aeaaabd457c070b840e9f79d5e20a5abf --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 21:09:57,612 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:09:57,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:09:57,631 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:09:57,632 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:09:57,632 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:09:57,634 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:09:57,635 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:09:57,636 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:09:57,637 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:09:57,638 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:09:57,639 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:09:57,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:09:57,640 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:09:57,641 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:09:57,642 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:09:57,643 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:09:57,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:09:57,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:09:57,646 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:09:57,648 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:09:57,649 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:09:57,650 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:09:57,651 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:09:57,654 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:09:57,654 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:09:57,654 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:09:57,655 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:09:57,656 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:09:57,657 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:09:57,657 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:09:57,658 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:09:57,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:09:57,659 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:09:57,660 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:09:57,660 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:09:57,661 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:09:57,661 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:09:57,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:09:57,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:09:57,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:09:57,663 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82ea4e5-debd-49c7-a995-ca50183c715e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 21:09:57,683 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:09:57,683 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:09:57,684 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:09:57,684 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:09:57,684 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:09:57,685 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:09:57,685 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:09:57,685 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:09:57,686 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:09:57,686 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:09:57,686 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 21:09:57,686 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:09:57,686 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 21:09:57,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:09:57,687 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:09:57,687 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:09:57,687 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:09:57,687 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 21:09:57,687 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:09:57,687 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:09:57,688 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:09:57,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:09:57,688 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:09:57,688 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:09:57,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:09:57,689 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:09:57,689 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:09:57,689 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:09:57,689 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:09:57,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 21:09:57,689 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:09:57,689 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:09:57,690 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:09:57,690 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:09:57,690 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:09:57,690 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82ea4e5-debd-49c7-a995-ca50183c715e/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82ea4e5-debd-49c7-a995-ca50183c715e/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d1acaf5881e7bc6fb96063443cb57a4aeaaabd457c070b840e9f79d5e20a5abf [2022-12-13 21:09:57,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:09:57,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:09:57,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:09:57,924 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:09:57,924 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:09:57,926 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82ea4e5-debd-49c7-a995-ca50183c715e/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M1.c [2022-12-13 21:10:00,520 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:10:00,753 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:10:00,753 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82ea4e5-debd-49c7-a995-ca50183c715e/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M1.c [2022-12-13 21:10:00,767 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82ea4e5-debd-49c7-a995-ca50183c715e/bin/uautomizer-uyxdKDjOR8/data/87e29ce33/97420d9844534f3280e36c0c73169737/FLAG872e2b56f [2022-12-13 21:10:00,780 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82ea4e5-debd-49c7-a995-ca50183c715e/bin/uautomizer-uyxdKDjOR8/data/87e29ce33/97420d9844534f3280e36c0c73169737 [2022-12-13 21:10:00,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:10:00,784 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:10:00,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:10:00,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:10:00,789 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:10:00,789 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:10:00" (1/1) ... [2022-12-13 21:10:00,790 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f298d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:00, skipping insertion in model container [2022-12-13 21:10:00,790 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:10:00" (1/1) ... [2022-12-13 21:10:00,796 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:10:00,830 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:10:00,951 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_d82ea4e5-debd-49c7-a995-ca50183c715e/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M1.c[2017,2030] [2022-12-13 21:10:00,992 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 21:10:00,993 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 21:10:00,994 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-13 21:10:00,998 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 21:10:00,998 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 21:10:00,998 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-13 21:10:00,999 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 21:10:00,999 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 21:10:01,008 WARN L623 FunctionHandler]: Unknown extern function ecrobot_status_monitor [2022-12-13 21:10:01,008 WARN L623 FunctionHandler]: Unknown extern function write_mode_on_lcd [2022-12-13 21:10:01,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:10:01,171 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:10:01,181 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_d82ea4e5-debd-49c7-a995-ca50183c715e/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M1.c[2017,2030] [2022-12-13 21:10:01,194 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 21:10:01,194 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 21:10:01,195 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-13 21:10:01,196 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 21:10:01,197 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 21:10:01,197 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-13 21:10:01,197 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 21:10:01,197 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 21:10:01,201 WARN L623 FunctionHandler]: Unknown extern function ecrobot_status_monitor [2022-12-13 21:10:01,202 WARN L623 FunctionHandler]: Unknown extern function write_mode_on_lcd [2022-12-13 21:10:01,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:10:01,308 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:10:01,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:01 WrapperNode [2022-12-13 21:10:01,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:10:01,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:10:01,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:10:01,310 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:10:01,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:01" (1/1) ... [2022-12-13 21:10:01,352 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:01" (1/1) ... [2022-12-13 21:10:01,445 INFO L138 Inliner]: procedures = 62, calls = 1929, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 4123 [2022-12-13 21:10:01,445 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:10:01,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:10:01,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:10:01,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:10:01,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:01" (1/1) ... [2022-12-13 21:10:01,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:01" (1/1) ... [2022-12-13 21:10:01,471 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:01" (1/1) ... [2022-12-13 21:10:01,471 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:01" (1/1) ... [2022-12-13 21:10:01,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:01" (1/1) ... [2022-12-13 21:10:01,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:01" (1/1) ... [2022-12-13 21:10:01,548 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:01" (1/1) ... [2022-12-13 21:10:01,554 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:01" (1/1) ... [2022-12-13 21:10:01,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:10:01,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:10:01,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:10:01,580 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:10:01,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:01" (1/1) ... [2022-12-13 21:10:01,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:10:01,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82ea4e5-debd-49c7-a995-ca50183c715e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:10:01,602 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82ea4e5-debd-49c7-a995-ca50183c715e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:10:01,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d82ea4e5-debd-49c7-a995-ca50183c715e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:10:01,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:10:01,636 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-12-13 21:10:01,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-12-13 21:10:01,636 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-12-13 21:10:01,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-12-13 21:10:01,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 21:10:01,636 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-12-13 21:10:01,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-12-13 21:10:01,636 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-12-13 21:10:01,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-12-13 21:10:01,637 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_observer_obstacle_flag [2022-12-13 21:10:01,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_observer_obstacle_flag [2022-12-13 21:10:01,637 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-12-13 21:10:01,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-12-13 21:10:01,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 21:10:01,637 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-12-13 21:10:01,637 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-12-13 21:10:01,637 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-12-13 21:10:01,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-12-13 21:10:01,638 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-13 21:10:01,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-13 21:10:01,638 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-13 21:10:01,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-13 21:10:01,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 21:10:01,638 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2022-12-13 21:10:01,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2022-12-13 21:10:01,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 21:10:01,639 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-12-13 21:10:01,639 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-12-13 21:10:01,639 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-12-13 21:10:01,639 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-12-13 21:10:01,639 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-12-13 21:10:01,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-12-13 21:10:01,639 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 21:10:01,639 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 21:10:01,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:10:01,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:10:01,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:10:01,640 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-12-13 21:10:01,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-12-13 21:10:01,640 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-12-13 21:10:01,640 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-12-13 21:10:01,640 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-12-13 21:10:01,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-12-13 21:10:01,912 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:10:01,914 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:10:07,923 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:10:07,946 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:10:07,946 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 21:10:07,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:10:07 BoogieIcfgContainer [2022-12-13 21:10:07,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:10:07,952 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:10:07,952 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:10:07,955 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:10:07,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:10:00" (1/3) ... [2022-12-13 21:10:07,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33d2e098 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:10:07, skipping insertion in model container [2022-12-13 21:10:07,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:10:01" (2/3) ... [2022-12-13 21:10:07,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33d2e098 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:10:07, skipping insertion in model container [2022-12-13 21:10:07,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:10:07" (3/3) ... [2022-12-13 21:10:07,957 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.3.M1.c [2022-12-13 21:10:07,975 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:10:07,975 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 21:10:08,032 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:10:08,037 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6aae6831, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:10:08,037 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 21:10:08,042 INFO L276 IsEmpty]: Start isEmpty. Operand has 1290 states, 815 states have (on average 1.2748466257668711) internal successors, (1039), 846 states have internal predecessors, (1039), 455 states have call successors, (455), 18 states have call predecessors, (455), 18 states have return successors, (455), 453 states have call predecessors, (455), 455 states have call successors, (455) [2022-12-13 21:10:08,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 879 [2022-12-13 21:10:08,092 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:10:08,093 INFO L195 NwaCegarLoop]: trace histogram [111, 111, 111, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:10:08,093 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:10:08,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:10:08,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1711506897, now seen corresponding path program 1 times [2022-12-13 21:10:08,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:10:08,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675969952] [2022-12-13 21:10:08,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:10:08,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms