./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e675ee2-f69b-4523-ba0e-97b56414899c/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e675ee2-f69b-4523-ba0e-97b56414899c/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_6e675ee2-f69b-4523-ba0e-97b56414899c/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e675ee2-f69b-4523-ba0e-97b56414899c/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e675ee2-f69b-4523-ba0e-97b56414899c/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_6e675ee2-f69b-4523-ba0e-97b56414899c/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 64d7e25d2b411aa83621d9b12af66c6bbf36b903d9ea3c8a9dc9ced9d60fa3c1 --- 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 13:59:40,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:59:40,073 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:59:40,092 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:59:40,092 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:59:40,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:59:40,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:59:40,096 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:59:40,098 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:59:40,098 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:59:40,099 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:59:40,100 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:59:40,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:59:40,102 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:59:40,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:59:40,104 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:59:40,105 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:59:40,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:59:40,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:59:40,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:59:40,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:59:40,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:59:40,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:59:40,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:59:40,117 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:59:40,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:59:40,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:59:40,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:59:40,119 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:59:40,119 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:59:40,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:59:40,120 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:59:40,121 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:59:40,122 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:59:40,123 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:59:40,123 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:59:40,124 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:59:40,124 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:59:40,124 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:59:40,125 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:59:40,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:59:40,126 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e675ee2-f69b-4523-ba0e-97b56414899c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 13:59:40,146 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:59:40,146 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:59:40,147 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:59:40,147 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:59:40,147 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:59:40,148 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:59:40,148 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:59:40,148 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:59:40,148 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:59:40,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:59:40,149 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:59:40,149 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:59:40,149 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:59:40,149 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:59:40,150 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:59:40,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:59:40,150 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:59:40,150 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:59:40,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:59:40,150 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:59:40,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:59:40,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:59:40,151 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:59:40,151 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:59:40,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:59:40,152 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:59:40,152 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:59:40,152 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:59:40,152 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:59:40,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:59:40,152 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:59:40,152 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:59:40,153 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:59:40,153 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:59:40,153 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:59:40,153 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_6e675ee2-f69b-4523-ba0e-97b56414899c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e675ee2-f69b-4523-ba0e-97b56414899c/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64d7e25d2b411aa83621d9b12af66c6bbf36b903d9ea3c8a9dc9ced9d60fa3c1 [2022-12-13 13:59:40,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:59:40,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:59:40,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:59:40,370 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:59:40,370 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:59:40,372 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e675ee2-f69b-4523-ba0e-97b56414899c/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-2.c [2022-12-13 13:59:42,920 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:59:43,393 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:59:43,394 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e675ee2-f69b-4523-ba0e-97b56414899c/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-2.c [2022-12-13 13:59:43,432 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e675ee2-f69b-4523-ba0e-97b56414899c/bin/uautomizer-uyxdKDjOR8/data/82839cd5d/7a5ee49e813d40cb975ea6f6bfcd2a35/FLAG4ae6c224b [2022-12-13 13:59:43,446 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e675ee2-f69b-4523-ba0e-97b56414899c/bin/uautomizer-uyxdKDjOR8/data/82839cd5d/7a5ee49e813d40cb975ea6f6bfcd2a35 [2022-12-13 13:59:43,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:59:43,450 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:59:43,451 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:59:43,451 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:59:43,455 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:59:43,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:59:43" (1/1) ... [2022-12-13 13:59:43,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38a2376e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:59:43, skipping insertion in model container [2022-12-13 13:59:43,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:59:43" (1/1) ... [2022-12-13 13:59:43,463 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:59:43,604 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:59:43,814 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_6e675ee2-f69b-4523-ba0e-97b56414899c/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-2.c[2232,2245] [2022-12-13 13:59:43,935 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 13:59:43,936 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 13:59:43,938 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-13 13:59:43,941 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 13:59:43,942 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 13:59:43,942 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 13:59:43,943 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 13:59:43,963 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-13 13:59:44,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:59:44,615 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:59:44,629 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_6e675ee2-f69b-4523-ba0e-97b56414899c/sv-benchmarks/c/seq-mthreaded/rekcba_aso.1.M4-2.c[2232,2245] [2022-12-13 13:59:44,643 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 13:59:44,643 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 13:59:44,644 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-13 13:59:44,645 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 13:59:44,646 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 13:59:44,646 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 13:59:44,646 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 13:59:44,650 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-13 13:59:45,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:59:45,301 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:59:45,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:59:45 WrapperNode [2022-12-13 13:59:45,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:59:45,303 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:59:45,303 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:59:45,303 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:59:45,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:59:45" (1/1) ... [2022-12-13 13:59:45,518 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:59:45" (1/1) ... [2022-12-13 13:59:46,157 INFO L138 Inliner]: procedures = 60, calls = 19341, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 41957 [2022-12-13 13:59:46,157 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:59:46,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:59:46,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:59:46,158 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:59:46,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:59:45" (1/1) ... [2022-12-13 13:59:46,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:59:45" (1/1) ... [2022-12-13 13:59:46,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:59:45" (1/1) ... [2022-12-13 13:59:46,352 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:59:45" (1/1) ... [2022-12-13 13:59:46,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:59:45" (1/1) ... [2022-12-13 13:59:46,844 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:59:45" (1/1) ... [2022-12-13 13:59:46,894 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:59:45" (1/1) ... [2022-12-13 13:59:46,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:59:45" (1/1) ... [2022-12-13 13:59:47,080 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:59:47,080 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:59:47,080 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:59:47,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:59:47,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:59:45" (1/1) ... [2022-12-13 13:59:47,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:59:47,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e675ee2-f69b-4523-ba0e-97b56414899c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:59:47,104 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e675ee2-f69b-4523-ba0e-97b56414899c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:59:47,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e675ee2-f69b-4523-ba0e-97b56414899c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:59:47,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:59:47,148 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-12-13 13:59:47,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-12-13 13:59:47,148 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-12-13 13:59:47,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-12-13 13:59:47,148 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-12-13 13:59:47,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-12-13 13:59:47,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:59:47,149 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-12-13 13:59:47,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-12-13 13:59:47,149 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-12-13 13:59:47,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-12-13 13:59:47,149 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-12-13 13:59:47,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-12-13 13:59:47,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 13:59:47,149 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-12-13 13:59:47,150 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-12-13 13:59:47,150 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-12-13 13:59:47,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-12-13 13:59:47,150 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-12-13 13:59:47,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-12-13 13:59:47,150 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-13 13:59:47,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-13 13:59:47,150 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-13 13:59:47,150 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-13 13:59:47,150 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-12-13 13:59:47,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-12-13 13:59:47,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:59:47,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 13:59:47,151 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-12-13 13:59:47,151 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-12-13 13:59:47,151 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-12-13 13:59:47,151 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-12-13 13:59:47,151 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-12-13 13:59:47,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-12-13 13:59:47,151 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-12-13 13:59:47,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-12-13 13:59:47,152 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 13:59:47,152 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 13:59:47,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:59:47,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:59:47,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:59:47,152 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-12-13 13:59:47,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-12-13 13:59:47,152 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-12-13 13:59:47,152 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-12-13 13:59:47,153 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-12-13 13:59:47,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-12-13 13:59:47,153 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-12-13 13:59:47,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-12-13 13:59:48,443 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:59:48,444 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:00:43,080 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:00:43,109 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:00:43,109 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 14:00:43,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:00:43 BoogieIcfgContainer [2022-12-13 14:00:43,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:00:43,119 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:00:43,119 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:00:43,121 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:00:43,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:59:43" (1/3) ... [2022-12-13 14:00:43,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e8436eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:00:43, skipping insertion in model container [2022-12-13 14:00:43,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:59:45" (2/3) ... [2022-12-13 14:00:43,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e8436eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:00:43, skipping insertion in model container [2022-12-13 14:00:43,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:00:43" (3/3) ... [2022-12-13 14:00:43,123 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_aso.1.M4-2.c [2022-12-13 14:00:43,137 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:00:43,137 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 14:00:43,314 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:00:43,320 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;@4c1cc5cc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:00:43,320 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 14:00:43,346 INFO L276 IsEmpty]: Start isEmpty. Operand has 12638 states, 8207 states have (on average 1.3098574387717803) internal successors, (10750), 8320 states have internal predecessors, (10750), 4408 states have call successors, (4408), 21 states have call predecessors, (4408), 21 states have return successors, (4408), 4406 states have call predecessors, (4408), 4408 states have call successors, (4408) [2022-12-13 14:00:43,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5901 [2022-12-13 14:00:43,739 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:00:43,742 INFO L195 NwaCegarLoop]: trace histogram [551, 551, 551, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 14:00:43,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:00:43,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1922117985, now seen corresponding path program 1 times [2022-12-13 14:00:43,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:00:43,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077040380] [2022-12-13 14:00:43,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:00:43,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms