./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_nxt.3.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_d3414899-e30c-4f25-8049-6b00eaf248ff/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3414899-e30c-4f25-8049-6b00eaf248ff/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_d3414899-e30c-4f25-8049-6b00eaf248ff/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3414899-e30c-4f25-8049-6b00eaf248ff/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_nxt.3.M4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3414899-e30c-4f25-8049-6b00eaf248ff/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_d3414899-e30c-4f25-8049-6b00eaf248ff/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 5816b6ee4c54982d6c4f363e51f69070026ee50b2ef95cedbe859f62dcbecd24 --- 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 16:45:22,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:45:22,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:45:22,158 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:45:22,158 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:45:22,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:45:22,160 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:45:22,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:45:22,162 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:45:22,163 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:45:22,163 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:45:22,164 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:45:22,165 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:45:22,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:45:22,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:45:22,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:45:22,167 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:45:22,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:45:22,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:45:22,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:45:22,172 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:45:22,173 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:45:22,175 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:45:22,176 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:45:22,180 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:45:22,180 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:45:22,181 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:45:22,181 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:45:22,182 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:45:22,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:45:22,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:45:22,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:45:22,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:45:22,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:45:22,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:45:22,185 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:45:22,186 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:45:22,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:45:22,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:45:22,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:45:22,187 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:45:22,188 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3414899-e30c-4f25-8049-6b00eaf248ff/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 16:45:22,204 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:45:22,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:45:22,204 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:45:22,204 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:45:22,205 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:45:22,205 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:45:22,205 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:45:22,205 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:45:22,205 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:45:22,206 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:45:22,206 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 16:45:22,206 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:45:22,206 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 16:45:22,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:45:22,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:45:22,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:45:22,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:45:22,207 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 16:45:22,207 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:45:22,207 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:45:22,207 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:45:22,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:45:22,207 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:45:22,207 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:45:22,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:45:22,208 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:45:22,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:45:22,208 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:45:22,208 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:45:22,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:45:22,208 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:45:22,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:45:22,208 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:45:22,209 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:45:22,209 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:45:22,209 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_d3414899-e30c-4f25-8049-6b00eaf248ff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3414899-e30c-4f25-8049-6b00eaf248ff/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5816b6ee4c54982d6c4f363e51f69070026ee50b2ef95cedbe859f62dcbecd24 [2022-12-13 16:45:22,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:45:22,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:45:22,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:45:22,385 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:45:22,385 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:45:22,386 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3414899-e30c-4f25-8049-6b00eaf248ff/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/seq-mthreaded/rekh_nxt.3.M4.c [2022-12-13 16:45:24,909 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:45:25,172 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:45:25,173 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3414899-e30c-4f25-8049-6b00eaf248ff/sv-benchmarks/c/seq-mthreaded/rekh_nxt.3.M4.c [2022-12-13 16:45:25,183 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3414899-e30c-4f25-8049-6b00eaf248ff/bin/uautomizer-uyxdKDjOR8/data/e44aa6742/4ea646e127eb476f99e030ebc8c84e59/FLAG9cb81c1c2 [2022-12-13 16:45:25,521 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3414899-e30c-4f25-8049-6b00eaf248ff/bin/uautomizer-uyxdKDjOR8/data/e44aa6742/4ea646e127eb476f99e030ebc8c84e59 [2022-12-13 16:45:25,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:45:25,534 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:45:25,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:45:25,537 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:45:25,542 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:45:25,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:45:25" (1/1) ... [2022-12-13 16:45:25,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@669dfc08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:45:25, skipping insertion in model container [2022-12-13 16:45:25,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:45:25" (1/1) ... [2022-12-13 16:45:25,551 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:45:25,596 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:45:25,721 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_d3414899-e30c-4f25-8049-6b00eaf248ff/sv-benchmarks/c/seq-mthreaded/rekh_nxt.3.M4.c[1762,1775] [2022-12-13 16:45:25,776 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 16:45:25,777 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 16:45:25,779 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-13 16:45:25,784 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 16:45:25,784 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 16:45:25,785 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-13 16:45:25,785 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 16:45:25,786 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 16:45:25,799 WARN L623 FunctionHandler]: Unknown extern function ecrobot_status_monitor [2022-12-13 16:45:25,799 WARN L623 FunctionHandler]: Unknown extern function write_mode_on_lcd [2022-12-13 16:45:25,979 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:45:25,991 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:45:26,002 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_d3414899-e30c-4f25-8049-6b00eaf248ff/sv-benchmarks/c/seq-mthreaded/rekh_nxt.3.M4.c[1762,1775] [2022-12-13 16:45:26,018 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 16:45:26,019 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_count [2022-12-13 16:45:26,020 WARN L623 FunctionHandler]: Unknown extern function ecrobot_sound_tone [2022-12-13 16:45:26,022 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 16:45:26,022 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 16:45:26,022 WARN L623 FunctionHandler]: Unknown extern function ecrobot_bt_data_logger [2022-12-13 16:45:26,023 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 16:45:26,023 WARN L623 FunctionHandler]: Unknown extern function nxt_motor_set_speed [2022-12-13 16:45:26,027 WARN L623 FunctionHandler]: Unknown extern function ecrobot_status_monitor [2022-12-13 16:45:26,027 WARN L623 FunctionHandler]: Unknown extern function write_mode_on_lcd [2022-12-13 16:45:26,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:45:26,176 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:45:26,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:45:26 WrapperNode [2022-12-13 16:45:26,176 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:45:26,177 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:45:26,177 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:45:26,178 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:45:26,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:45:26" (1/1) ... [2022-12-13 16:45:26,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:45:26" (1/1) ... [2022-12-13 16:45:26,306 INFO L138 Inliner]: procedures = 60, calls = 2543, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 4814 [2022-12-13 16:45:26,306 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:45:26,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:45:26,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:45:26,307 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:45:26,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:45:26" (1/1) ... [2022-12-13 16:45:26,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:45:26" (1/1) ... [2022-12-13 16:45:26,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:45:26" (1/1) ... [2022-12-13 16:45:26,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:45:26" (1/1) ... [2022-12-13 16:45:26,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:45:26" (1/1) ... [2022-12-13 16:45:26,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:45:26" (1/1) ... [2022-12-13 16:45:26,397 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:45:26" (1/1) ... [2022-12-13 16:45:26,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:45:26" (1/1) ... [2022-12-13 16:45:26,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:45:26,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:45:26,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:45:26,419 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:45:26,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:45:26" (1/1) ... [2022-12-13 16:45:26,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:45:26,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3414899-e30c-4f25-8049-6b00eaf248ff/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:45:26,472 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3414899-e30c-4f25-8049-6b00eaf248ff/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:45:26,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3414899-e30c-4f25-8049-6b00eaf248ff/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:45:26,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:45:26,505 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-12-13 16:45:26,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-12-13 16:45:26,506 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-12-13 16:45:26,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-12-13 16:45:26,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 16:45:26,506 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-12-13 16:45:26,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-12-13 16:45:26,506 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-12-13 16:45:26,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-12-13 16:45:26,506 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_observer_obstacle_flag [2022-12-13 16:45:26,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_observer_obstacle_flag [2022-12-13 16:45:26,507 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-12-13 16:45:26,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-12-13 16:45:26,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 16:45:26,507 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-12-13 16:45:26,507 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-12-13 16:45:26,507 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-12-13 16:45:26,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-12-13 16:45:26,508 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-13 16:45:26,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-12-13 16:45:26,508 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-13 16:45:26,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-12-13 16:45:26,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 16:45:26,508 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-12-13 16:45:26,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-12-13 16:45:26,508 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2022-12-13 16:45:26,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2022-12-13 16:45:26,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 16:45:26,509 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-12-13 16:45:26,509 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-12-13 16:45:26,509 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-12-13 16:45:26,509 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-12-13 16:45:26,509 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-12-13 16:45:26,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-12-13 16:45:26,509 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 16:45:26,509 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 16:45:26,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:45:26,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:45:26,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:45:26,510 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-12-13 16:45:26,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-12-13 16:45:26,510 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-12-13 16:45:26,510 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-12-13 16:45:26,510 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-12-13 16:45:26,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-12-13 16:45:26,827 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:45:26,829 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:45:34,279 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:45:34,295 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:45:34,296 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 16:45:34,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:45:34 BoogieIcfgContainer [2022-12-13 16:45:34,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:45:34,302 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:45:34,302 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:45:34,304 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:45:34,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:45:25" (1/3) ... [2022-12-13 16:45:34,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd696d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:45:34, skipping insertion in model container [2022-12-13 16:45:34,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:45:26" (2/3) ... [2022-12-13 16:45:34,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd696d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:45:34, skipping insertion in model container [2022-12-13 16:45:34,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:45:34" (3/3) ... [2022-12-13 16:45:34,307 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_nxt.3.M4.c [2022-12-13 16:45:34,321 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:45:34,321 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 16:45:34,397 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:45:34,402 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;@30146b46, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:45:34,403 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 16:45:34,411 INFO L276 IsEmpty]: Start isEmpty. Operand has 1944 states, 1149 states have (on average 1.2027850304612706) internal successors, (1382), 1153 states have internal predecessors, (1382), 774 states have call successors, (774), 19 states have call predecessors, (774), 19 states have return successors, (774), 772 states have call predecessors, (774), 774 states have call successors, (774) [2022-12-13 16:45:34,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1311 [2022-12-13 16:45:34,480 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:45:34,481 INFO L195 NwaCegarLoop]: trace histogram [209, 209, 209, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:45:34,482 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:45:34,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:45:34,486 INFO L85 PathProgramCache]: Analyzing trace with hash 502494177, now seen corresponding path program 1 times [2022-12-13 16:45:34,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:45:34,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756352399] [2022-12-13 16:45:34,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:45:34,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms