./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_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_2602f203-b5ab-42ac-ad29-ffe642fc8c99/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2602f203-b5ab-42ac-ad29-ffe642fc8c99/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2602f203-b5ab-42ac-ad29-ffe642fc8c99/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2602f203-b5ab-42ac-ad29-ffe642fc8c99/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.3.M1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2602f203-b5ab-42ac-ad29-ffe642fc8c99/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2602f203-b5ab-42ac-ad29-ffe642fc8c99/bin/uautomizer-ZsLfNo2U6R --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 ab9f0c8bf8702d6b09918533becccbdb970411e8ea985342c84585cb962ca4e1 --- 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 [2022-11-25 18:00:15,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:00:15,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:00:15,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:00:15,411 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:00:15,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:00:15,414 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:00:15,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:00:15,418 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:00:15,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:00:15,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:00:15,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:00:15,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:00:15,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:00:15,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:00:15,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:00:15,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:00:15,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:00:15,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:00:15,434 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:00:15,435 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:00:15,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:00:15,439 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:00:15,440 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:00:15,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:00:15,452 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:00:15,452 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:00:15,454 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:00:15,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:00:15,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:00:15,456 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:00:15,457 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:00:15,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:00:15,459 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:00:15,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:00:15,467 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:00:15,468 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:00:15,468 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:00:15,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:00:15,470 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:00:15,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:00:15,472 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2602f203-b5ab-42ac-ad29-ffe642fc8c99/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 18:00:15,524 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:00:15,525 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:00:15,527 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:00:15,527 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:00:15,528 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:00:15,529 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:00:15,530 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:00:15,530 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:00:15,530 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:00:15,530 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:00:15,532 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:00:15,556 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:00:15,556 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:00:15,557 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:00:15,557 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:00:15,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:00:15,557 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:00:15,558 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:00:15,558 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:00:15,558 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:00:15,559 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:00:15,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:00:15,559 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:00:15,559 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:00:15,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:00:15,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:00:15,560 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:00:15,561 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:00:15,561 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:00:15,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:00:15,562 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:00:15,562 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:00:15,563 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:00:15,563 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:00:15,563 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_2602f203-b5ab-42ac-ad29-ffe642fc8c99/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2602f203-b5ab-42ac-ad29-ffe642fc8c99/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab9f0c8bf8702d6b09918533becccbdb970411e8ea985342c84585cb962ca4e1 [2022-11-25 18:00:15,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:00:15,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:00:15,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:00:15,935 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:00:15,936 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:00:15,938 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2602f203-b5ab-42ac-ad29-ffe642fc8c99/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.3.M1.c [2022-11-25 18:00:19,451 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:00:19,958 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:00:19,959 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2602f203-b5ab-42ac-ad29-ffe642fc8c99/sv-benchmarks/c/seq-mthreaded/rekcba_aso.3.M1.c [2022-11-25 18:00:19,998 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2602f203-b5ab-42ac-ad29-ffe642fc8c99/bin/uautomizer-ZsLfNo2U6R/data/124572a83/c6fae66d22a344b09e62dd527cfa85d8/FLAG47e7edb65 [2022-11-25 18:00:20,021 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2602f203-b5ab-42ac-ad29-ffe642fc8c99/bin/uautomizer-ZsLfNo2U6R/data/124572a83/c6fae66d22a344b09e62dd527cfa85d8 [2022-11-25 18:00:20,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:00:20,029 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:00:20,036 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:00:20,036 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:00:20,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:00:20,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:00:20" (1/1) ... [2022-11-25 18:00:20,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b244e6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:20, skipping insertion in model container [2022-11-25 18:00:20,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:00:20" (1/1) ... [2022-11-25 18:00:20,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:00:20,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:00:20,457 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_2602f203-b5ab-42ac-ad29-ffe642fc8c99/sv-benchmarks/c/seq-mthreaded/rekcba_aso.3.M1.c[2061,2074] [2022-11-25 18:00:20,614 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-11-25 18:00:20,615 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-11-25 18:00:20,622 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-11-25 18:00:20,636 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-25 18:00:20,638 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-25 18:00:20,639 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-25 18:00:20,640 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-25 18:00:20,662 WARN L623 FunctionHandler]: Unknown extern function __startrek_get_pi_lock [2022-11-25 18:00:20,671 WARN L623 FunctionHandler]: Unknown extern function __startrek_release_pi_lock [2022-11-25 18:00:20,677 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-11-25 18:00:21,130 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:00:21,150 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:00:21,172 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_2602f203-b5ab-42ac-ad29-ffe642fc8c99/sv-benchmarks/c/seq-mthreaded/rekcba_aso.3.M1.c[2061,2074] [2022-11-25 18:00:21,209 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-11-25 18:00:21,224 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-11-25 18:00:21,226 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-11-25 18:00:21,228 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-25 18:00:21,228 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-25 18:00:21,229 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-25 18:00:21,234 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-25 18:00:21,238 WARN L623 FunctionHandler]: Unknown extern function __startrek_get_pi_lock [2022-11-25 18:00:21,243 WARN L623 FunctionHandler]: Unknown extern function __startrek_release_pi_lock [2022-11-25 18:00:21,244 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-11-25 18:00:21,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:00:21,619 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:00:21,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:21 WrapperNode [2022-11-25 18:00:21,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:00:21,623 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:00:21,623 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:00:21,624 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:00:21,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:21" (1/1) ... [2022-11-25 18:00:21,759 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:21" (1/1) ... [2022-11-25 18:00:21,971 INFO L138 Inliner]: procedures = 72, calls = 2683, calls flagged for inlining = 27, calls inlined = 27, statements flattened = 5614 [2022-11-25 18:00:21,972 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:00:21,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:00:21,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:00:21,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:00:21,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:21" (1/1) ... [2022-11-25 18:00:21,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:21" (1/1) ... [2022-11-25 18:00:22,019 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:21" (1/1) ... [2022-11-25 18:00:22,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:21" (1/1) ... [2022-11-25 18:00:22,197 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:21" (1/1) ... [2022-11-25 18:00:22,228 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:21" (1/1) ... [2022-11-25 18:00:22,249 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:21" (1/1) ... [2022-11-25 18:00:22,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:21" (1/1) ... [2022-11-25 18:00:22,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:00:22,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:00:22,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:00:22,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:00:22,323 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:21" (1/1) ... [2022-11-25 18:00:22,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:00:22,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2602f203-b5ab-42ac-ad29-ffe642fc8c99/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:00:22,366 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2602f203-b5ab-42ac-ad29-ffe642fc8c99/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:00:22,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2602f203-b5ab-42ac-ad29-ffe642fc8c99/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:00:22,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:00:22,419 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-11-25 18:00:22,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-11-25 18:00:22,419 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-25 18:00:22,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-25 18:00:22,419 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-11-25 18:00:22,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-11-25 18:00:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:00:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-25 18:00:22,420 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-25 18:00:22,420 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-25 18:00:22,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-25 18:00:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-11-25 18:00:22,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-11-25 18:00:22,421 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-11-25 18:00:22,421 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-11-25 18:00:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 18:00:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-25 18:00:22,422 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-25 18:00:22,422 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_version [2022-11-25 18:00:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_version [2022-11-25 18:00:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-11-25 18:00:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-11-25 18:00:22,423 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-11-25 18:00:22,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-11-25 18:00:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-11-25 18:00:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-11-25 18:00:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-25 18:00:22,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-25 18:00:22,424 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_version [2022-11-25 18:00:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_version [2022-11-25 18:00:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-25 18:00:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-25 18:00:22,425 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-11-25 18:00:22,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-11-25 18:00:22,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:00:22,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:00:22,426 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-25 18:00:22,426 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-25 18:00:22,426 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-11-25 18:00:22,427 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-11-25 18:00:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-11-25 18:00:22,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-11-25 18:00:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-11-25 18:00:22,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-11-25 18:00:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 18:00:22,428 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 18:00:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:00:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:00:22,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:00:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-11-25 18:00:22,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-11-25 18:00:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-25 18:00:22,429 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-25 18:00:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-11-25 18:00:22,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-11-25 18:00:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-11-25 18:00:22,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-11-25 18:00:23,123 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:00:23,126 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:00:38,659 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:00:38,688 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:00:38,689 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 18:00:38,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:00:38 BoogieIcfgContainer [2022-11-25 18:00:38,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:00:38,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:00:38,699 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:00:38,703 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:00:38,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:00:20" (1/3) ... [2022-11-25 18:00:38,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a1a4eb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:00:38, skipping insertion in model container [2022-11-25 18:00:38,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:21" (2/3) ... [2022-11-25 18:00:38,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a1a4eb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:00:38, skipping insertion in model container [2022-11-25 18:00:38,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:00:38" (3/3) ... [2022-11-25 18:00:38,710 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_aso.3.M1.c [2022-11-25 18:00:38,735 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:00:38,735 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 18:00:38,869 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:00:38,880 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;@16d76929, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:00:38,881 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 18:00:38,896 INFO L276 IsEmpty]: Start isEmpty. Operand has 1650 states, 1023 states have (on average 1.2561094819159335) internal successors, (1285), 1055 states have internal predecessors, (1285), 600 states have call successors, (600), 25 states have call predecessors, (600), 25 states have return successors, (600), 598 states have call predecessors, (600), 600 states have call successors, (600) [2022-11-25 18:00:39,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1659 [2022-11-25 18:00:39,090 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:00:39,093 INFO L195 NwaCegarLoop]: trace histogram [241, 241, 241, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 18:00:39,094 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 18:00:39,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:00:39,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1503460362, now seen corresponding path program 1 times [2022-11-25 18:00:39,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:00:39,117 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217362053] [2022-11-25 18:00:39,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:00:39,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms