./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898cd3c8-bf0e-48e1-8401-f773db3c10b4/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898cd3c8-bf0e-48e1-8401-f773db3c10b4/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_898cd3c8-bf0e-48e1-8401-f773db3c10b4/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898cd3c8-bf0e-48e1-8401-f773db3c10b4/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898cd3c8-bf0e-48e1-8401-f773db3c10b4/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_898cd3c8-bf0e-48e1-8401-f773db3c10b4/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 20976b2d8a648a632a55cb7b6a072d8c835d658a3592a366af91723667ead694 --- 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 11:53:44,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:53:44,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:53:44,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:53:44,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:53:44,615 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:53:44,616 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:53:44,617 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:53:44,618 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:53:44,619 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:53:44,619 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:53:44,620 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:53:44,620 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:53:44,621 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:53:44,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:53:44,622 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:53:44,623 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:53:44,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:53:44,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:53:44,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:53:44,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:53:44,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:53:44,628 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:53:44,628 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:53:44,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:53:44,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:53:44,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:53:44,631 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:53:44,632 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:53:44,632 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:53:44,632 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:53:44,633 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:53:44,633 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:53:44,634 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:53:44,634 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:53:44,635 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:53:44,635 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:53:44,635 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:53:44,635 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:53:44,636 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:53:44,636 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:53:44,637 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898cd3c8-bf0e-48e1-8401-f773db3c10b4/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 11:53:44,651 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:53:44,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:53:44,651 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:53:44,651 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:53:44,652 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:53:44,652 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:53:44,652 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:53:44,652 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:53:44,653 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:53:44,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:53:44,653 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 11:53:44,653 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:53:44,653 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 11:53:44,653 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:53:44,653 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:53:44,653 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:53:44,653 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:53:44,653 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 11:53:44,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:53:44,654 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:53:44,654 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:53:44,654 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:53:44,654 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:53:44,654 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:53:44,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:53:44,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:53:44,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:53:44,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:53:44,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:53:44,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:53:44,655 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:53:44,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:53:44,655 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:53:44,655 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:53:44,655 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:53:44,655 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_898cd3c8-bf0e-48e1-8401-f773db3c10b4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898cd3c8-bf0e-48e1-8401-f773db3c10b4/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20976b2d8a648a632a55cb7b6a072d8c835d658a3592a366af91723667ead694 [2022-12-13 11:53:44,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:53:44,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:53:44,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:53:44,849 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:53:44,849 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:53:44,851 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898cd3c8-bf0e-48e1-8401-f773db3c10b4/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c [2022-12-13 11:53:47,430 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:53:47,654 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:53:47,654 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898cd3c8-bf0e-48e1-8401-f773db3c10b4/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c [2022-12-13 11:53:47,667 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898cd3c8-bf0e-48e1-8401-f773db3c10b4/bin/uautomizer-uyxdKDjOR8/data/360426596/c129e87019fe4beb88fd5d8bb1fb39fb/FLAG4cd053edb [2022-12-13 11:53:47,678 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898cd3c8-bf0e-48e1-8401-f773db3c10b4/bin/uautomizer-uyxdKDjOR8/data/360426596/c129e87019fe4beb88fd5d8bb1fb39fb [2022-12-13 11:53:47,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:53:47,680 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:53:47,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:53:47,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:53:47,684 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:53:47,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:53:47" (1/1) ... [2022-12-13 11:53:47,685 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d86e527 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:47, skipping insertion in model container [2022-12-13 11:53:47,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:53:47" (1/1) ... [2022-12-13 11:53:47,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:53:47,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:53:47,871 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_898cd3c8-bf0e-48e1-8401-f773db3c10b4/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c[1807,1820] [2022-12-13 11:53:47,935 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 11:53:47,935 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 11:53:47,937 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-13 11:53:47,940 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 11:53:47,940 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 11:53:47,941 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 11:53:47,941 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 11:53:47,950 WARN L623 FunctionHandler]: Unknown extern function __startrek_get_pi_lock [2022-12-13 11:53:47,951 WARN L623 FunctionHandler]: Unknown extern function __startrek_release_pi_lock [2022-12-13 11:53:47,952 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-13 11:53:48,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:53:48,229 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:53:48,239 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_898cd3c8-bf0e-48e1-8401-f773db3c10b4/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c[1807,1820] [2022-12-13 11:53:48,252 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 11:53:48,252 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 11:53:48,252 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-13 11:53:48,253 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 11:53:48,254 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 11:53:48,254 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 11:53:48,254 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 11:53:48,256 WARN L623 FunctionHandler]: Unknown extern function __startrek_get_pi_lock [2022-12-13 11:53:48,257 WARN L623 FunctionHandler]: Unknown extern function __startrek_release_pi_lock [2022-12-13 11:53:48,257 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-13 11:53:48,412 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:53:48,426 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:53:48,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:48 WrapperNode [2022-12-13 11:53:48,427 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:53:48,427 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:53:48,428 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:53:48,428 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:53:48,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:48" (1/1) ... [2022-12-13 11:53:48,481 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:48" (1/1) ... [2022-12-13 11:53:48,681 INFO L138 Inliner]: procedures = 70, calls = 5237, calls flagged for inlining = 25, calls inlined = 25, statements flattened = 9803 [2022-12-13 11:53:48,681 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:53:48,682 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:53:48,682 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:53:48,682 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:53:48,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:48" (1/1) ... [2022-12-13 11:53:48,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:48" (1/1) ... [2022-12-13 11:53:48,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:48" (1/1) ... [2022-12-13 11:53:48,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:48" (1/1) ... [2022-12-13 11:53:48,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:48" (1/1) ... [2022-12-13 11:53:48,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:48" (1/1) ... [2022-12-13 11:53:48,898 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:48" (1/1) ... [2022-12-13 11:53:48,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:48" (1/1) ... [2022-12-13 11:53:48,943 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:53:48,944 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:53:48,944 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:53:48,944 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:53:48,945 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:48" (1/1) ... [2022-12-13 11:53:48,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:53:48,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898cd3c8-bf0e-48e1-8401-f773db3c10b4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:53:48,966 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898cd3c8-bf0e-48e1-8401-f773db3c10b4/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:53:48,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_898cd3c8-bf0e-48e1-8401-f773db3c10b4/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:53:48,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:53:48,996 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_trans [2022-12-13 11:53:48,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_trans [2022-12-13 11:53:48,996 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-12-13 11:53:48,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-12-13 11:53:48,996 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-12-13 11:53:48,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-12-13 11:53:48,996 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-12-13 11:53:48,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-12-13 11:53:48,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:53:48,997 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-12-13 11:53:48,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-12-13 11:53:48,997 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-12-13 11:53:48,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-12-13 11:53:48,997 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-12-13 11:53:48,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-12-13 11:53:48,997 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-12-13 11:53:48,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-12-13 11:53:48,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 11:53:48,997 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-12-13 11:53:48,997 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-12-13 11:53:48,997 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-12-13 11:53:48,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-12-13 11:53:48,997 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-12-13 11:53:48,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-12-13 11:53:48,998 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-12-13 11:53:48,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-12-13 11:53:48,998 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-13 11:53:48,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-13 11:53:48,998 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-13 11:53:48,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-13 11:53:48,998 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-12-13 11:53:48,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-12-13 11:53:48,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:53:48,998 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-12-13 11:53:48,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-12-13 11:53:48,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 11:53:48,998 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-12-13 11:53:48,998 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-12-13 11:53:48,998 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-12-13 11:53:48,998 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-12-13 11:53:48,999 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-12-13 11:53:48,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-12-13 11:53:48,999 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-12-13 11:53:48,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-12-13 11:53:48,999 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 11:53:48,999 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 11:53:48,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:53:48,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:53:48,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:53:48,999 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-12-13 11:53:48,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-12-13 11:53:48,999 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-12-13 11:53:48,999 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-12-13 11:53:48,999 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-12-13 11:53:48,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-12-13 11:53:48,999 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-12-13 11:53:48,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-12-13 11:53:49,514 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:53:49,516 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:54:01,052 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:54:01,076 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:54:01,077 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 11:54:01,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:54:01 BoogieIcfgContainer [2022-12-13 11:54:01,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:54:01,084 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:54:01,084 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:54:01,087 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:54:01,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:53:47" (1/3) ... [2022-12-13 11:54:01,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@118ffd30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:54:01, skipping insertion in model container [2022-12-13 11:54:01,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:48" (2/3) ... [2022-12-13 11:54:01,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@118ffd30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:54:01, skipping insertion in model container [2022-12-13 11:54:01,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:54:01" (3/3) ... [2022-12-13 11:54:01,090 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_aso.2.M4-2.c [2022-12-13 11:54:01,107 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:54:01,107 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 11:54:01,226 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:54:01,232 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;@5d574cd8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:54:01,232 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 11:54:01,247 INFO L276 IsEmpty]: Start isEmpty. Operand has 3579 states, 2044 states have (on average 1.1653620352250489) internal successors, (2382), 2049 states have internal predecessors, (2382), 1508 states have call successors, (1508), 25 states have call predecessors, (1508), 25 states have return successors, (1508), 1506 states have call predecessors, (1508), 1508 states have call successors, (1508) [2022-12-13 11:54:01,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1379 [2022-12-13 11:54:01,372 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:54:01,373 INFO L195 NwaCegarLoop]: trace histogram [210, 210, 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, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:54:01,374 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:54:01,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:54:01,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1024813490, now seen corresponding path program 1 times [2022-12-13 11:54:01,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:54:01,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646554312] [2022-12-13 11:54:01,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:54:01,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms