./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.3.M4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_d523b23b-6c8b-4aea-8f23-fcab0769dacf/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d523b23b-6c8b-4aea-8f23-fcab0769dacf/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_d523b23b-6c8b-4aea-8f23-fcab0769dacf/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d523b23b-6c8b-4aea-8f23-fcab0769dacf/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.3.M4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d523b23b-6c8b-4aea-8f23-fcab0769dacf/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_d523b23b-6c8b-4aea-8f23-fcab0769dacf/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 c9b1c02d6c7be7efa5919110e2a46197af13f7e2bcd070264e9ea26a732e0c62 --- 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 18:26:37,059 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 18:26:37,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 18:26:37,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 18:26:37,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 18:26:37,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 18:26:37,118 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 18:26:37,121 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 18:26:37,123 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 18:26:37,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 18:26:37,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 18:26:37,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 18:26:37,135 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 18:26:37,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 18:26:37,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 18:26:37,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 18:26:37,144 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 18:26:37,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 18:26:37,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 18:26:37,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 18:26:37,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 18:26:37,156 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 18:26:37,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 18:26:37,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 18:26:37,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 18:26:37,163 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 18:26:37,163 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 18:26:37,164 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 18:26:37,165 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 18:26:37,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 18:26:37,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 18:26:37,167 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 18:26:37,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 18:26:37,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 18:26:37,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 18:26:37,170 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 18:26:37,177 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 18:26:37,179 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 18:26:37,179 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 18:26:37,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 18:26:37,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 18:26:37,184 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d523b23b-6c8b-4aea-8f23-fcab0769dacf/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 18:26:37,227 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 18:26:37,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 18:26:37,228 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 18:26:37,228 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 18:26:37,229 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 18:26:37,229 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 18:26:37,230 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 18:26:37,230 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 18:26:37,231 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 18:26:37,231 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 18:26:37,232 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 18:26:37,232 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 18:26:37,232 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 18:26:37,233 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 18:26:37,233 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 18:26:37,233 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 18:26:37,233 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 18:26:37,233 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 18:26:37,234 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 18:26:37,234 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 18:26:37,234 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 18:26:37,234 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 18:26:37,234 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 18:26:37,235 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 18:26:37,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:26:37,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 18:26:37,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 18:26:37,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 18:26:37,236 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 18:26:37,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 18:26:37,236 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 18:26:37,236 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 18:26:37,237 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 18:26:37,237 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 18:26:37,237 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_d523b23b-6c8b-4aea-8f23-fcab0769dacf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d523b23b-6c8b-4aea-8f23-fcab0769dacf/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c9b1c02d6c7be7efa5919110e2a46197af13f7e2bcd070264e9ea26a732e0c62 [2022-11-25 18:26:37,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 18:26:37,595 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 18:26:37,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 18:26:37,600 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 18:26:37,601 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 18:26:37,602 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d523b23b-6c8b-4aea-8f23-fcab0769dacf/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.3.M4.c [2022-11-25 18:26:40,892 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 18:26:41,801 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 18:26:41,802 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d523b23b-6c8b-4aea-8f23-fcab0769dacf/sv-benchmarks/c/seq-mthreaded/rekcba_aso.3.M4.c [2022-11-25 18:26:41,900 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d523b23b-6c8b-4aea-8f23-fcab0769dacf/bin/uautomizer-ZsLfNo2U6R/data/1f8bf2b25/39505508e97c47feaf7d183939491899/FLAG103ff5abf [2022-11-25 18:26:41,922 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d523b23b-6c8b-4aea-8f23-fcab0769dacf/bin/uautomizer-ZsLfNo2U6R/data/1f8bf2b25/39505508e97c47feaf7d183939491899 [2022-11-25 18:26:41,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 18:26:41,932 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 18:26:41,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 18:26:41,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 18:26:41,940 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 18:26:41,941 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:26:41" (1/1) ... [2022-11-25 18:26:41,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fa7473d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:41, skipping insertion in model container [2022-11-25 18:26:41,943 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:26:41" (1/1) ... [2022-11-25 18:26:41,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 18:26:42,272 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 18:26:42,644 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_d523b23b-6c8b-4aea-8f23-fcab0769dacf/sv-benchmarks/c/seq-mthreaded/rekcba_aso.3.M4.c[2319,2332] [2022-11-25 18:26:42,902 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-11-25 18:26:42,903 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-11-25 18:26:42,906 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-11-25 18:26:42,926 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-25 18:26:42,927 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-25 18:26:42,927 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-25 18:26:42,931 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-25 18:26:42,969 WARN L623 FunctionHandler]: Unknown extern function __startrek_get_pi_lock [2022-11-25 18:26:42,975 WARN L623 FunctionHandler]: Unknown extern function __startrek_release_pi_lock [2022-11-25 18:26:42,976 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-11-25 18:26:44,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:26:44,462 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 18:26:44,493 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_d523b23b-6c8b-4aea-8f23-fcab0769dacf/sv-benchmarks/c/seq-mthreaded/rekcba_aso.3.M4.c[2319,2332] [2022-11-25 18:26:44,526 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-11-25 18:26:44,530 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-11-25 18:26:44,531 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-11-25 18:26:44,534 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-25 18:26:44,534 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-25 18:26:44,535 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-25 18:26:44,536 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-11-25 18:26:44,541 WARN L623 FunctionHandler]: Unknown extern function __startrek_get_pi_lock [2022-11-25 18:26:44,545 WARN L623 FunctionHandler]: Unknown extern function __startrek_release_pi_lock [2022-11-25 18:26:44,546 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-11-25 18:26:45,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 18:26:45,768 INFO L208 MainTranslator]: Completed translation [2022-11-25 18:26:45,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:45 WrapperNode [2022-11-25 18:26:45,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 18:26:45,772 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 18:26:45,773 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 18:26:45,773 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 18:26:45,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:45" (1/1) ... [2022-11-25 18:26:46,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:45" (1/1) ... [2022-11-25 18:26:48,186 INFO L138 Inliner]: procedures = 72, calls = 21284, calls flagged for inlining = 27, calls inlined = 27, statements flattened = 45639 [2022-11-25 18:26:48,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 18:26:48,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 18:26:48,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 18:26:48,187 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 18:26:48,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:45" (1/1) ... [2022-11-25 18:26:48,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:45" (1/1) ... [2022-11-25 18:26:48,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:45" (1/1) ... [2022-11-25 18:26:48,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:45" (1/1) ... [2022-11-25 18:26:50,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:45" (1/1) ... [2022-11-25 18:26:50,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:45" (1/1) ... [2022-11-25 18:26:50,371 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:45" (1/1) ... [2022-11-25 18:26:50,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:45" (1/1) ... [2022-11-25 18:26:50,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 18:26:50,625 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 18:26:50,625 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 18:26:50,625 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 18:26:50,626 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:45" (1/1) ... [2022-11-25 18:26:50,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 18:26:50,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d523b23b-6c8b-4aea-8f23-fcab0769dacf/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 18:26:50,665 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d523b23b-6c8b-4aea-8f23-fcab0769dacf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 18:26:50,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d523b23b-6c8b-4aea-8f23-fcab0769dacf/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 18:26:50,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 18:26:50,716 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-11-25 18:26:50,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-11-25 18:26:50,717 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-25 18:26:50,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-25 18:26:50,717 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-11-25 18:26:50,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-11-25 18:26:50,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 18:26:50,718 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-25 18:26:50,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-25 18:26:50,718 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-25 18:26:50,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-25 18:26:50,719 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-11-25 18:26:50,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-11-25 18:26:50,719 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-11-25 18:26:50,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-11-25 18:26:50,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 18:26:50,720 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-25 18:26:50,720 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-25 18:26:50,720 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_version [2022-11-25 18:26:50,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_version [2022-11-25 18:26:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-11-25 18:26:50,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-11-25 18:26:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-11-25 18:26:50,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-11-25 18:26:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-11-25 18:26:50,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-11-25 18:26:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-25 18:26:50,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-11-25 18:26:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_version [2022-11-25 18:26:50,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_version [2022-11-25 18:26:50,723 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-25 18:26:50,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-11-25 18:26:50,723 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-11-25 18:26:50,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-11-25 18:26:50,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 18:26:50,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 18:26:50,724 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-25 18:26:50,724 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-25 18:26:50,724 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-11-25 18:26:50,725 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-11-25 18:26:50,725 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-11-25 18:26:50,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-11-25 18:26:50,725 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-11-25 18:26:50,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-11-25 18:26:50,725 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 18:26:50,726 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 18:26:50,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 18:26:50,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 18:26:50,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 18:26:50,726 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-11-25 18:26:50,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-11-25 18:26:50,727 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-25 18:26:50,727 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-25 18:26:50,727 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-11-25 18:26:50,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-11-25 18:26:50,728 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-11-25 18:26:50,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-11-25 18:26:54,053 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 18:26:54,056 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 18:30:58,613 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 18:30:58,700 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 18:30:58,701 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 18:30:58,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:30:58 BoogieIcfgContainer [2022-11-25 18:30:58,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 18:30:58,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 18:30:58,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 18:30:58,727 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 18:30:58,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:26:41" (1/3) ... [2022-11-25 18:30:58,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b3e6a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:30:58, skipping insertion in model container [2022-11-25 18:30:58,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:26:45" (2/3) ... [2022-11-25 18:30:58,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b3e6a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:30:58, skipping insertion in model container [2022-11-25 18:30:58,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:30:58" (3/3) ... [2022-11-25 18:30:58,734 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_aso.3.M4.c [2022-11-25 18:30:58,759 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 18:30:58,760 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 18:30:59,111 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 18:30:59,126 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;@757880e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 18:30:59,126 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 18:30:59,176 INFO L276 IsEmpty]: Start isEmpty. Operand has 13155 states, 8487 states have (on average 1.302698244373748) internal successors, (11056), 8600 states have internal predecessors, (11056), 4641 states have call successors, (4641), 25 states have call predecessors, (4641), 25 states have return successors, (4641), 4639 states have call predecessors, (4641), 4641 states have call successors, (4641) [2022-11-25 18:31:00,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8469 [2022-11-25 18:31:00,786 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 18:31:00,790 INFO L195 NwaCegarLoop]: trace histogram [979, 979, 979, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 18:31:00,802 INFO L85 PathProgramCache]: Analyzing trace with hash -2039053156, now seen corresponding path program 1 times [2022-11-25 18:31:00,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 18:31:00,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956741948] [2022-11-25 18:31:00,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 18:31:00,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms