./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_2807b680-15b2-4ab6-99c2-ef1d8706575b/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807b680-15b2-4ab6-99c2-ef1d8706575b/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807b680-15b2-4ab6-99c2-ef1d8706575b/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807b680-15b2-4ab6-99c2-ef1d8706575b/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807b680-15b2-4ab6-99c2-ef1d8706575b/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807b680-15b2-4ab6-99c2-ef1d8706575b/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --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 cdfe8cdf5ef6acb015ae980f200d66be6855e21e0a93c803bebabec43209e961 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:45:13,101 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:45:13,204 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807b680-15b2-4ab6-99c2-ef1d8706575b/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:45:13,213 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:45:13,214 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:45:13,271 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:45:13,272 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:45:13,273 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:45:13,274 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:45:13,279 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:45:13,280 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:45:13,281 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:45:13,281 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:45:13,283 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:45:13,283 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:45:13,284 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:45:13,284 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:45:13,285 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:45:13,285 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:45:13,286 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:45:13,286 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:45:13,287 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:45:13,287 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:45:13,289 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:45:13,289 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:45:13,290 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:45:13,291 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:45:13,291 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:45:13,291 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:45:13,292 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:45:13,293 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:45:13,293 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:45:13,294 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:45:13,294 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:45:13,294 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:45:13,294 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:45:13,295 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:45:13,295 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:45:13,295 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:45:13,295 INFO L153 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_2807b680-15b2-4ab6-99c2-ef1d8706575b/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807b680-15b2-4ab6-99c2-ef1d8706575b/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdfe8cdf5ef6acb015ae980f200d66be6855e21e0a93c803bebabec43209e961 [2023-11-19 07:45:13,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:45:13,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:45:13,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:45:13,664 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:45:13,664 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:45:13,666 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807b680-15b2-4ab6-99c2-ef1d8706575b/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2023-11-19 07:45:16,795 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:45:17,310 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:45:17,311 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807b680-15b2-4ab6-99c2-ef1d8706575b/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2023-11-19 07:45:17,353 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807b680-15b2-4ab6-99c2-ef1d8706575b/bin/uautomizer-verify-uCwYo4JHxu/data/fba93b41d/b15cf28e0c4c46439317170163f86e0d/FLAG5251fffc9 [2023-11-19 07:45:17,373 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807b680-15b2-4ab6-99c2-ef1d8706575b/bin/uautomizer-verify-uCwYo4JHxu/data/fba93b41d/b15cf28e0c4c46439317170163f86e0d [2023-11-19 07:45:17,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:45:17,382 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:45:17,386 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:45:17,386 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:45:17,392 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:45:17,393 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:45:17" (1/1) ... [2023-11-19 07:45:17,394 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2131292f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:17, skipping insertion in model container [2023-11-19 07:45:17,395 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:45:17" (1/1) ... [2023-11-19 07:45:17,513 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:45:17,756 WARN L240 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_2807b680-15b2-4ab6-99c2-ef1d8706575b/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c[1871,1884] [2023-11-19 07:45:18,488 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:45:18,523 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:45:18,535 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/ctm.bug2.i","-S") [42] [2023-11-19 07:45:18,540 WARN L240 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_2807b680-15b2-4ab6-99c2-ef1d8706575b/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c[1871,1884] [2023-11-19 07:45:18,756 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:45:18,805 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:45:18,805 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:18 WrapperNode [2023-11-19 07:45:18,806 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:45:18,807 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:45:18,807 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:45:18,807 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:45:18,816 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:18" (1/1) ... [2023-11-19 07:45:18,981 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:18" (1/1) ... [2023-11-19 07:45:19,222 INFO L138 Inliner]: procedures = 99, calls = 2724, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8419 [2023-11-19 07:45:19,223 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:45:19,224 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:45:19,224 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:45:19,224 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:45:19,235 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:18" (1/1) ... [2023-11-19 07:45:19,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:18" (1/1) ... [2023-11-19 07:45:19,307 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:18" (1/1) ... [2023-11-19 07:45:19,308 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:18" (1/1) ... [2023-11-19 07:45:19,622 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:18" (1/1) ... [2023-11-19 07:45:19,667 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:18" (1/1) ... [2023-11-19 07:45:19,712 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:18" (1/1) ... [2023-11-19 07:45:19,737 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:18" (1/1) ... [2023-11-19 07:45:19,780 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:45:19,782 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:45:19,782 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:45:19,783 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:45:19,784 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:18" (1/1) ... [2023-11-19 07:45:19,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:45:19,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807b680-15b2-4ab6-99c2-ef1d8706575b/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:45:19,821 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807b680-15b2-4ab6-99c2-ef1d8706575b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:45:19,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2807b680-15b2-4ab6-99c2-ef1d8706575b/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:45:19,877 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2023-11-19 07:45:19,877 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2023-11-19 07:45:19,878 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2023-11-19 07:45:19,878 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2023-11-19 07:45:19,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:45:19,878 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2023-11-19 07:45:19,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2023-11-19 07:45:19,879 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-11-19 07:45:19,879 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-11-19 07:45:19,879 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2023-11-19 07:45:19,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2023-11-19 07:45:19,881 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2023-11-19 07:45:19,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2023-11-19 07:45:19,882 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2023-11-19 07:45:19,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2023-11-19 07:45:19,882 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2023-11-19 07:45:19,882 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2023-11-19 07:45:19,882 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2023-11-19 07:45:19,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2023-11-19 07:45:19,883 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2023-11-19 07:45:19,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2023-11-19 07:45:19,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:45:19,884 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-11-19 07:45:19,884 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-11-19 07:45:19,885 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2023-11-19 07:45:19,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2023-11-19 07:45:19,885 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2023-11-19 07:45:19,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2023-11-19 07:45:19,885 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2023-11-19 07:45:19,886 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2023-11-19 07:45:19,887 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2023-11-19 07:45:19,887 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2023-11-19 07:45:19,887 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2023-11-19 07:45:19,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2023-11-19 07:45:19,888 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-11-19 07:45:19,888 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-11-19 07:45:19,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:45:19,889 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-11-19 07:45:19,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-11-19 07:45:19,889 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2023-11-19 07:45:19,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2023-11-19 07:45:19,889 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2023-11-19 07:45:19,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2023-11-19 07:45:19,890 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2023-11-19 07:45:19,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2023-11-19 07:45:19,890 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-11-19 07:45:19,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-11-19 07:45:19,890 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2023-11-19 07:45:19,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2023-11-19 07:45:19,891 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-11-19 07:45:19,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-11-19 07:45:19,891 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2023-11-19 07:45:19,891 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2023-11-19 07:45:19,892 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2023-11-19 07:45:19,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2023-11-19 07:45:19,892 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2023-11-19 07:45:19,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2023-11-19 07:45:19,892 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2023-11-19 07:45:19,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2023-11-19 07:45:19,893 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2023-11-19 07:45:19,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2023-11-19 07:45:19,893 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2023-11-19 07:45:19,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2023-11-19 07:45:19,893 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2023-11-19 07:45:19,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2023-11-19 07:45:19,894 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2023-11-19 07:45:19,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2023-11-19 07:45:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2023-11-19 07:45:19,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2023-11-19 07:45:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2023-11-19 07:45:19,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2023-11-19 07:45:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2023-11-19 07:45:19,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2023-11-19 07:45:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2023-11-19 07:45:19,897 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2023-11-19 07:45:19,897 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2023-11-19 07:45:19,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2023-11-19 07:45:19,898 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2023-11-19 07:45:19,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2023-11-19 07:45:19,898 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2023-11-19 07:45:19,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2023-11-19 07:45:19,899 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2023-11-19 07:45:19,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2023-11-19 07:45:19,899 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2023-11-19 07:45:19,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2023-11-19 07:45:19,899 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2023-11-19 07:45:19,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2023-11-19 07:45:19,900 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2023-11-19 07:45:19,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2023-11-19 07:45:19,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:45:19,901 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2023-11-19 07:45:19,901 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2023-11-19 07:45:19,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:45:19,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:45:20,533 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:45:20,538 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:45:45,663 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:45:45,700 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:45:45,700 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 07:45:45,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:45:45 BoogieIcfgContainer [2023-11-19 07:45:45,716 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:45:45,718 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:45:45,719 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:45:45,722 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:45:45,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:45:17" (1/3) ... [2023-11-19 07:45:45,723 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7047907f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:45:45, skipping insertion in model container [2023-11-19 07:45:45,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:45:18" (2/3) ... [2023-11-19 07:45:45,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7047907f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:45:45, skipping insertion in model container [2023-11-19 07:45:45,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:45:45" (3/3) ... [2023-11-19 07:45:45,726 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-1.c [2023-11-19 07:45:45,747 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:45:45,747 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:45:45,893 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:45:45,899 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=LoopHeads, 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;@1800f463, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:45:45,899 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:45:45,917 INFO L276 IsEmpty]: Start isEmpty. Operand has 2453 states, 2105 states have (on average 1.4807600950118764) internal successors, (3117), 2129 states have internal predecessors, (3117), 302 states have call successors, (302), 44 states have call predecessors, (302), 44 states have return successors, (302), 292 states have call predecessors, (302), 302 states have call successors, (302) [2023-11-19 07:45:45,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-19 07:45:45,938 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:45:45,939 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:45:45,939 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:45:45,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:45:45,946 INFO L85 PathProgramCache]: Analyzing trace with hash -134003326, now seen corresponding path program 1 times [2023-11-19 07:45:45,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:45:45,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190517049] [2023-11-19 07:45:45,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:45:45,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms