./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.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_a6bb5121-3afd-4402-81b6-9a4081c6abab/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bb5121-3afd-4402-81b6-9a4081c6abab/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_a6bb5121-3afd-4402-81b6-9a4081c6abab/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bb5121-3afd-4402-81b6-9a4081c6abab/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bb5121-3afd-4402-81b6-9a4081c6abab/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_a6bb5121-3afd-4402-81b6-9a4081c6abab/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 f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:58:07,232 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:58:07,367 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bb5121-3afd-4402-81b6-9a4081c6abab/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:58:07,372 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:58:07,375 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:58:07,412 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:58:07,414 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:58:07,414 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:58:07,415 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:58:07,420 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:58:07,421 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:58:07,422 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:58:07,422 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:58:07,424 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:58:07,424 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:58:07,425 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:58:07,425 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:58:07,425 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:58:07,426 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:58:07,427 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:58:07,427 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:58:07,428 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:58:07,428 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:58:07,428 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:58:07,429 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:58:07,430 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:58:07,430 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:58:07,431 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:58:07,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:58:07,431 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:58:07,433 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:58:07,433 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:58:07,433 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:58:07,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:58:07,434 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:58:07,434 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:58:07,434 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:58:07,434 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:58:07,435 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:58:07,435 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_a6bb5121-3afd-4402-81b6-9a4081c6abab/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bb5121-3afd-4402-81b6-9a4081c6abab/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1e7a931f8678a52ab26f5a1b74bb59e33ef4ed9c03430a4d28342e1a824b13d [2023-11-19 07:58:07,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:58:07,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:58:07,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:58:07,756 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:58:07,756 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:58:07,760 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bb5121-3afd-4402-81b6-9a4081c6abab/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2023-11-19 07:58:10,873 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:58:11,362 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:58:11,363 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bb5121-3afd-4402-81b6-9a4081c6abab/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2023-11-19 07:58:11,403 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bb5121-3afd-4402-81b6-9a4081c6abab/bin/uautomizer-verify-uCwYo4JHxu/data/05ef62abe/d48e3aecb51b41dcbf8e000bae9c7ec2/FLAG31e5b4968 [2023-11-19 07:58:11,422 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bb5121-3afd-4402-81b6-9a4081c6abab/bin/uautomizer-verify-uCwYo4JHxu/data/05ef62abe/d48e3aecb51b41dcbf8e000bae9c7ec2 [2023-11-19 07:58:11,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:58:11,431 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:58:11,434 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:58:11,435 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:58:11,440 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:58:11,441 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:11" (1/1) ... [2023-11-19 07:58:11,442 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@715ce001 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:11, skipping insertion in model container [2023-11-19 07:58:11,442 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:11" (1/1) ... [2023-11-19 07:58:11,565 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:58:11,834 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_a6bb5121-3afd-4402-81b6-9a4081c6abab/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c[1870,1883] [2023-11-19 07:58:12,508 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:58:12,534 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:58:12,545 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/ctm.ok2.i","-S") [42] [2023-11-19 07:58:12,551 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_a6bb5121-3afd-4402-81b6-9a4081c6abab/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c[1870,1883] [2023-11-19 07:58:12,864 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:58:12,935 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:58:12,935 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:12 WrapperNode [2023-11-19 07:58:12,936 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:58:12,937 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:58:12,937 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:58:12,937 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:58:12,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:12" (1/1) ... [2023-11-19 07:58:13,119 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:12" (1/1) ... [2023-11-19 07:58:13,390 INFO L138 Inliner]: procedures = 99, calls = 2725, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 8386 [2023-11-19 07:58:13,391 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:58:13,392 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:58:13,392 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:58:13,392 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:58:13,402 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:12" (1/1) ... [2023-11-19 07:58:13,402 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:12" (1/1) ... [2023-11-19 07:58:13,473 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:12" (1/1) ... [2023-11-19 07:58:13,474 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:12" (1/1) ... [2023-11-19 07:58:13,708 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:12" (1/1) ... [2023-11-19 07:58:13,756 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:12" (1/1) ... [2023-11-19 07:58:13,789 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:12" (1/1) ... [2023-11-19 07:58:13,815 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:12" (1/1) ... [2023-11-19 07:58:13,866 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:58:13,867 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:58:13,868 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:58:13,868 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:58:13,869 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:12" (1/1) ... [2023-11-19 07:58:13,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:58:13,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bb5121-3afd-4402-81b6-9a4081c6abab/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:13,904 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bb5121-3afd-4402-81b6-9a4081c6abab/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:13,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6bb5121-3afd-4402-81b6-9a4081c6abab/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:58:14,011 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2023-11-19 07:58:14,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2023-11-19 07:58:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2023-11-19 07:58:14,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2023-11-19 07:58:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:58:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2023-11-19 07:58:14,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2023-11-19 07:58:14,012 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-11-19 07:58:14,013 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-11-19 07:58:14,013 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2023-11-19 07:58:14,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2023-11-19 07:58:14,014 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2023-11-19 07:58:14,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2023-11-19 07:58:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2023-11-19 07:58:14,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2023-11-19 07:58:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2023-11-19 07:58:14,015 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2023-11-19 07:58:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2023-11-19 07:58:14,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2023-11-19 07:58:14,015 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2023-11-19 07:58:14,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2023-11-19 07:58:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:58:14,016 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-11-19 07:58:14,016 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-11-19 07:58:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2023-11-19 07:58:14,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2023-11-19 07:58:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2023-11-19 07:58:14,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2023-11-19 07:58:14,017 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2023-11-19 07:58:14,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2023-11-19 07:58:14,018 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2023-11-19 07:58:14,018 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2023-11-19 07:58:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2023-11-19 07:58:14,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2023-11-19 07:58:14,019 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-11-19 07:58:14,020 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-11-19 07:58:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:58:14,020 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-11-19 07:58:14,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-11-19 07:58:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2023-11-19 07:58:14,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2023-11-19 07:58:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2023-11-19 07:58:14,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2023-11-19 07:58:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2023-11-19 07:58:14,021 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2023-11-19 07:58:14,021 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-11-19 07:58:14,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-11-19 07:58:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2023-11-19 07:58:14,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2023-11-19 07:58:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-11-19 07:58:14,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-11-19 07:58:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2023-11-19 07:58:14,022 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2023-11-19 07:58:14,022 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2023-11-19 07:58:14,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2023-11-19 07:58:14,023 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2023-11-19 07:58:14,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2023-11-19 07:58:14,023 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2023-11-19 07:58:14,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2023-11-19 07:58:14,023 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2023-11-19 07:58:14,023 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2023-11-19 07:58:14,023 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2023-11-19 07:58:14,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2023-11-19 07:58:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2023-11-19 07:58:14,024 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2023-11-19 07:58:14,024 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2023-11-19 07:58:14,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2023-11-19 07:58:14,025 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2023-11-19 07:58:14,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2023-11-19 07:58:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2023-11-19 07:58:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2023-11-19 07:58:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2023-11-19 07:58:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2023-11-19 07:58:14,026 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2023-11-19 07:58:14,026 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2023-11-19 07:58:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2023-11-19 07:58:14,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2023-11-19 07:58:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2023-11-19 07:58:14,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2023-11-19 07:58:14,027 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2023-11-19 07:58:14,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2023-11-19 07:58:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2023-11-19 07:58:14,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2023-11-19 07:58:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2023-11-19 07:58:14,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2023-11-19 07:58:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2023-11-19 07:58:14,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2023-11-19 07:58:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2023-11-19 07:58:14,028 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2023-11-19 07:58:14,028 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2023-11-19 07:58:14,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2023-11-19 07:58:14,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:58:14,029 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2023-11-19 07:58:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2023-11-19 07:58:14,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:58:14,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:58:14,621 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:58:14,627 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:58:41,289 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:58:41,331 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:58:41,332 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 07:58:41,353 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:41 BoogieIcfgContainer [2023-11-19 07:58:41,354 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:58:41,357 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:58:41,357 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:58:41,362 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:58:41,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:58:11" (1/3) ... [2023-11-19 07:58:41,364 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f9bd09b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:41, skipping insertion in model container [2023-11-19 07:58:41,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:12" (2/3) ... [2023-11-19 07:58:41,364 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f9bd09b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:41, skipping insertion in model container [2023-11-19 07:58:41,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:41" (3/3) ... [2023-11-19 07:58:41,366 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-2.c [2023-11-19 07:58:41,392 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:58:41,393 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:58:41,527 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:58:41,536 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;@337fc8f1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:58:41,536 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:58:41,556 INFO L276 IsEmpty]: Start isEmpty. Operand has 2460 states, 2109 states have (on average 1.4803224276908487) internal successors, (3122), 2133 states have internal predecessors, (3122), 304 states have call successors, (304), 45 states have call predecessors, (304), 45 states have return successors, (304), 294 states have call predecessors, (304), 304 states have call successors, (304) [2023-11-19 07:58:41,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-19 07:58:41,584 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:41,585 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 07:58:41,586 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:58:41,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:41,593 INFO L85 PathProgramCache]: Analyzing trace with hash -646402178, now seen corresponding path program 1 times [2023-11-19 07:58:41,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:41,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465577839] [2023-11-19 07:58:41,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:41,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms