./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M4.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_f5f397cd-e792-462a-9787-9ac34649d206/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5f397cd-e792-462a-9787-9ac34649d206/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_f5f397cd-e792-462a-9787-9ac34649d206/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5f397cd-e792-462a-9787-9ac34649d206/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5f397cd-e792-462a-9787-9ac34649d206/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_f5f397cd-e792-462a-9787-9ac34649d206/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 057eb0aaa167d4a282deedb942f5c49b15cbcbec76af173c98e3ad8ae158d7c4 --- 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 15:03:29,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:03:29,169 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:03:29,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:03:29,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:03:29,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:03:29,184 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:03:29,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:03:29,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:03:29,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:03:29,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:03:29,188 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:03:29,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:03:29,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:03:29,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:03:29,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:03:29,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:03:29,191 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:03:29,192 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:03:29,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:03:29,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:03:29,195 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:03:29,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:03:29,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:03:29,198 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:03:29,198 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:03:29,198 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:03:29,199 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:03:29,199 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:03:29,200 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:03:29,200 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:03:29,200 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:03:29,201 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:03:29,201 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:03:29,202 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:03:29,202 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:03:29,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:03:29,203 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:03:29,203 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:03:29,203 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:03:29,204 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:03:29,204 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5f397cd-e792-462a-9787-9ac34649d206/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 15:03:29,227 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:03:29,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:03:29,227 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:03:29,227 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:03:29,228 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:03:29,228 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:03:29,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:03:29,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:03:29,228 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:03:29,232 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:03:29,232 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:03:29,232 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:03:29,232 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:03:29,233 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:03:29,233 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:03:29,233 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:03:29,233 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:03:29,233 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:03:29,233 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:03:29,233 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:03:29,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:03:29,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:03:29,233 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:03:29,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:03:29,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:03:29,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:03:29,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:03:29,234 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:03:29,234 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:03:29,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:03:29,234 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:03:29,234 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:03:29,234 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:03:29,234 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:03:29,235 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:03:29,235 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_f5f397cd-e792-462a-9787-9ac34649d206/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5f397cd-e792-462a-9787-9ac34649d206/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 057eb0aaa167d4a282deedb942f5c49b15cbcbec76af173c98e3ad8ae158d7c4 [2022-12-13 15:03:29,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:03:29,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:03:29,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:03:29,413 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:03:29,413 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:03:29,414 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5f397cd-e792-462a-9787-9ac34649d206/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M4.c [2022-12-13 15:03:31,957 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:03:32,260 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:03:32,261 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5f397cd-e792-462a-9787-9ac34649d206/sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M4.c [2022-12-13 15:03:32,278 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5f397cd-e792-462a-9787-9ac34649d206/bin/uautomizer-uyxdKDjOR8/data/8c5ac6230/ec80d7e817c1466b9189fbd97a2606cd/FLAG82d6c96a7 [2022-12-13 15:03:32,529 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5f397cd-e792-462a-9787-9ac34649d206/bin/uautomizer-uyxdKDjOR8/data/8c5ac6230/ec80d7e817c1466b9189fbd97a2606cd [2022-12-13 15:03:32,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:03:32,533 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:03:32,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:03:32,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:03:32,538 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:03:32,538 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:03:32" (1/1) ... [2022-12-13 15:03:32,539 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3269403b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:03:32, skipping insertion in model container [2022-12-13 15:03:32,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:03:32" (1/1) ... [2022-12-13 15:03:32,545 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:03:32,616 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:03:32,761 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_f5f397cd-e792-462a-9787-9ac34649d206/sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M4.c[1806,1819] [2022-12-13 15:03:32,823 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 15:03:32,824 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 15:03:32,825 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-13 15:03:32,828 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 15:03:32,828 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 15:03:32,829 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 15:03:32,829 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 15:03:32,838 WARN L623 FunctionHandler]: Unknown extern function __startrek_get_pi_lock [2022-12-13 15:03:32,839 WARN L623 FunctionHandler]: Unknown extern function __startrek_release_pi_lock [2022-12-13 15:03:32,839 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-13 15:03:33,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:03:33,117 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:03:33,127 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_f5f397cd-e792-462a-9787-9ac34649d206/sv-benchmarks/c/seq-mthreaded/rekh_aso.4.M4.c[1806,1819] [2022-12-13 15:03:33,139 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 15:03:33,139 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 15:03:33,140 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-13 15:03:33,141 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 15:03:33,141 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 15:03:33,142 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 15:03:33,142 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 15:03:33,144 WARN L623 FunctionHandler]: Unknown extern function __startrek_get_pi_lock [2022-12-13 15:03:33,144 WARN L623 FunctionHandler]: Unknown extern function __startrek_release_pi_lock [2022-12-13 15:03:33,145 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-13 15:03:33,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:03:33,326 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:03:33,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:03:33 WrapperNode [2022-12-13 15:03:33,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:03:33,327 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:03:33,327 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:03:33,327 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:03:33,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:03:33" (1/1) ... [2022-12-13 15:03:33,392 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:03:33" (1/1) ... [2022-12-13 15:03:33,607 INFO L138 Inliner]: procedures = 70, calls = 5236, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 9829 [2022-12-13 15:03:33,608 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:03:33,608 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:03:33,608 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:03:33,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:03:33,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:03:33" (1/1) ... [2022-12-13 15:03:33,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:03:33" (1/1) ... [2022-12-13 15:03:33,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:03:33" (1/1) ... [2022-12-13 15:03:33,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:03:33" (1/1) ... [2022-12-13 15:03:33,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:03:33" (1/1) ... [2022-12-13 15:03:33,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:03:33" (1/1) ... [2022-12-13 15:03:33,819 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:03:33" (1/1) ... [2022-12-13 15:03:33,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:03:33" (1/1) ... [2022-12-13 15:03:33,862 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:03:33,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:03:33,863 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:03:33,864 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:03:33,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:03:33" (1/1) ... [2022-12-13 15:03:33,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:03:33,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5f397cd-e792-462a-9787-9ac34649d206/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:03:33,887 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5f397cd-e792-462a-9787-9ac34649d206/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:03:33,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5f397cd-e792-462a-9787-9ac34649d206/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:03:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:03:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-12-13 15:03:33,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-12-13 15:03:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-12-13 15:03:33,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-12-13 15:03:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-12-13 15:03:33,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-12-13 15:03:33,923 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 15:03:33,923 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-12-13 15:03:33,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-12-13 15:03:33,923 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-12-13 15:03:33,923 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-12-13 15:03:33,923 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-12-13 15:03:33,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-12-13 15:03:33,924 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-12-13 15:03:33,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-12-13 15:03:33,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 15:03:33,924 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-12-13 15:03:33,924 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-12-13 15:03:33,924 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-12-13 15:03:33,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-12-13 15:03:33,925 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-12-13 15:03:33,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-12-13 15:03:33,925 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-12-13 15:03:33,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-12-13 15:03:33,925 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-13 15:03:33,925 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-13 15:03:33,925 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-13 15:03:33,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-13 15:03:33,926 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-12-13 15:03:33,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-12-13 15:03:33,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 15:03:33,926 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-12-13 15:03:33,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-12-13 15:03:33,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 15:03:33,926 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-12-13 15:03:33,927 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-12-13 15:03:33,927 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-12-13 15:03:33,927 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-12-13 15:03:33,927 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-12-13 15:03:33,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-12-13 15:03:33,927 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-12-13 15:03:33,927 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-12-13 15:03:33,927 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 15:03:33,928 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 15:03:33,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:03:33,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:03:33,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:03:33,928 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-12-13 15:03:33,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-12-13 15:03:33,928 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-12-13 15:03:33,928 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-12-13 15:03:33,929 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-12-13 15:03:33,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-12-13 15:03:33,929 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-12-13 15:03:33,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-12-13 15:03:34,442 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:03:34,445 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:03:45,965 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:03:45,981 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:03:45,981 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 15:03:45,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:03:45 BoogieIcfgContainer [2022-12-13 15:03:45,985 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:03:45,986 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:03:45,986 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:03:45,989 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:03:45,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:03:32" (1/3) ... [2022-12-13 15:03:45,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1230fe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:03:45, skipping insertion in model container [2022-12-13 15:03:45,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:03:33" (2/3) ... [2022-12-13 15:03:45,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1230fe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:03:45, skipping insertion in model container [2022-12-13 15:03:45,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:03:45" (3/3) ... [2022-12-13 15:03:45,991 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_aso.4.M4.c [2022-12-13 15:03:46,005 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:03:46,005 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 15:03:46,117 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:03:46,124 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;@25d0489d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:03:46,124 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 15:03:46,138 INFO L276 IsEmpty]: Start isEmpty. Operand has 3576 states, 2044 states have (on average 1.1653620352250489) internal successors, (2382), 2048 states have internal predecessors, (2382), 1506 states have call successors, (1506), 24 states have call predecessors, (1506), 24 states have return successors, (1506), 1504 states have call predecessors, (1506), 1506 states have call successors, (1506) [2022-12-13 15:03:46,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1379 [2022-12-13 15:03:46,222 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:03:46,224 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 15:03:46,224 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 15:03:46,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:03:46,229 INFO L85 PathProgramCache]: Analyzing trace with hash 2131596560, now seen corresponding path program 1 times [2022-12-13 15:03:46,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:03:46,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48957405] [2022-12-13 15:03:46,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:03:46,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms