./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19042460-7bc5-4502-89ac-e21262f4f4db/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19042460-7bc5-4502-89ac-e21262f4f4db/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19042460-7bc5-4502-89ac-e21262f4f4db/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19042460-7bc5-4502-89ac-e21262f4f4db/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19042460-7bc5-4502-89ac-e21262f4f4db/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19042460-7bc5-4502-89ac-e21262f4f4db/bin/uautomizer-verify-WvqO1wxjHP --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 90b68e26a5af3ce5617cd52d8dc6ef78c48b8482383cda056e3d7235d8bf007f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:11:46,125 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:11:46,227 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19042460-7bc5-4502-89ac-e21262f4f4db/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 23:11:46,231 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:11:46,232 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:11:46,274 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:11:46,276 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:11:46,277 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:11:46,278 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:11:46,284 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:11:46,285 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:11:46,286 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:11:46,286 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:11:46,288 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:11:46,289 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:11:46,289 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:11:46,290 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:11:46,290 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:11:46,291 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:11:46,291 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:11:46,292 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:11:46,292 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:11:46,293 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:11:46,293 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:11:46,294 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:11:46,295 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:11:46,295 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:11:46,296 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:11:46,296 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:11:46,297 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:11:46,298 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:11:46,299 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:11:46,299 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:11:46,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:11:46,300 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:11:46,300 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:11:46,300 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:11:46,301 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:11:46,301 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:11:46,301 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_19042460-7bc5-4502-89ac-e21262f4f4db/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19042460-7bc5-4502-89ac-e21262f4f4db/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90b68e26a5af3ce5617cd52d8dc6ef78c48b8482383cda056e3d7235d8bf007f [2023-11-06 23:11:46,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:11:46,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:11:46,639 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:11:46,642 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:11:46,643 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:11:46,644 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19042460-7bc5-4502-89ac-e21262f4f4db/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M1.c [2023-11-06 23:11:49,855 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:11:50,361 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:11:50,361 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19042460-7bc5-4502-89ac-e21262f4f4db/sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M1.c [2023-11-06 23:11:50,399 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19042460-7bc5-4502-89ac-e21262f4f4db/bin/uautomizer-verify-WvqO1wxjHP/data/2ff46750c/fcd7a0bf453247ecb1b580db5cbe928f/FLAG4bd308b61 [2023-11-06 23:11:50,420 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19042460-7bc5-4502-89ac-e21262f4f4db/bin/uautomizer-verify-WvqO1wxjHP/data/2ff46750c/fcd7a0bf453247ecb1b580db5cbe928f [2023-11-06 23:11:50,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:11:50,427 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:11:50,431 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:11:50,431 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:11:50,437 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:11:50,438 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:11:50" (1/1) ... [2023-11-06 23:11:50,439 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a52cce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:50, skipping insertion in model container [2023-11-06 23:11:50,439 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:11:50" (1/1) ... [2023-11-06 23:11:50,568 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:11:50,836 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_19042460-7bc5-4502-89ac-e21262f4f4db/sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M1.c[1806,1819] [2023-11-06 23:11:51,595 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:11:51,613 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:11:51,623 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/aso.bug3.i","-S") [39] [2023-11-06 23:11:51,642 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_19042460-7bc5-4502-89ac-e21262f4f4db/sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M1.c[1806,1819] [2023-11-06 23:11:51,983 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:11:52,009 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:11:52,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:52 WrapperNode [2023-11-06 23:11:52,010 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:11:52,011 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:11:52,011 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:11:52,012 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:11:52,019 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:52" (1/1) ... [2023-11-06 23:11:52,172 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:52" (1/1) ... [2023-11-06 23:11:52,519 INFO L138 Inliner]: procedures = 70, calls = 5190, calls flagged for inlining = 25, calls inlined = 25, statements flattened = 10031 [2023-11-06 23:11:52,522 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:11:52,523 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:11:52,524 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:11:52,524 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:11:52,536 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:52" (1/1) ... [2023-11-06 23:11:52,536 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:52" (1/1) ... [2023-11-06 23:11:52,725 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:52" (1/1) ... [2023-11-06 23:11:52,725 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:52" (1/1) ... [2023-11-06 23:11:53,101 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:52" (1/1) ... [2023-11-06 23:11:53,140 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:52" (1/1) ... [2023-11-06 23:11:53,176 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:52" (1/1) ... [2023-11-06 23:11:53,235 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:52" (1/1) ... [2023-11-06 23:11:53,295 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:11:53,296 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:11:53,296 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:11:53,296 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:11:53,297 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:52" (1/1) ... [2023-11-06 23:11:53,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:11:53,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19042460-7bc5-4502-89ac-e21262f4f4db/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:11:53,334 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19042460-7bc5-4502-89ac-e21262f4f4db/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:11:53,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19042460-7bc5-4502-89ac-e21262f4f4db/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:11:53,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:11:53,381 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2023-11-06 23:11:53,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2023-11-06 23:11:53,381 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-11-06 23:11:53,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-11-06 23:11:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-11-06 23:11:53,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-11-06 23:11:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 23:11:53,382 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-11-06 23:11:53,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-11-06 23:11:53,383 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-11-06 23:11:53,384 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-11-06 23:11:53,385 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2023-11-06 23:11:53,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2023-11-06 23:11:53,385 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-11-06 23:11:53,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-11-06 23:11:53,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 23:11:53,385 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-11-06 23:11:53,385 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-11-06 23:11:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_version [2023-11-06 23:11:53,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_version [2023-11-06 23:11:53,386 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-11-06 23:11:53,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-11-06 23:11:53,387 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2023-11-06 23:11:53,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2023-11-06 23:11:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2023-11-06 23:11:53,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2023-11-06 23:11:53,388 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-11-06 23:11:53,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-11-06 23:11:53,389 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_version [2023-11-06 23:11:53,390 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_version [2023-11-06 23:11:53,390 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-11-06 23:11:53,390 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-11-06 23:11:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2023-11-06 23:11:53,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2023-11-06 23:11:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 23:11:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 23:11:53,391 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-11-06 23:11:53,392 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-11-06 23:11:53,392 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-11-06 23:11:53,393 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-11-06 23:11:53,393 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2023-11-06 23:11:53,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2023-11-06 23:11:53,393 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2023-11-06 23:11:53,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2023-11-06 23:11:53,393 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 23:11:53,394 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 23:11:53,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 23:11:53,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:11:53,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:11:53,394 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-11-06 23:11:53,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-11-06 23:11:53,395 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-11-06 23:11:53,395 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-11-06 23:11:53,395 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-11-06 23:11:53,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-11-06 23:11:53,395 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2023-11-06 23:11:53,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2023-11-06 23:11:54,176 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:11:54,195 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:12:29,170 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:12:29,202 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:12:29,202 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 23:12:29,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:12:29 BoogieIcfgContainer [2023-11-06 23:12:29,208 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:12:29,212 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:12:29,213 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:12:29,216 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:12:29,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:11:50" (1/3) ... [2023-11-06 23:12:29,219 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24aeedcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:12:29, skipping insertion in model container [2023-11-06 23:12:29,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:52" (2/3) ... [2023-11-06 23:12:29,220 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24aeedcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:12:29, skipping insertion in model container [2023-11-06 23:12:29,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:12:29" (3/3) ... [2023-11-06 23:12:29,222 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_aso.3.M1.c [2023-11-06 23:12:29,242 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:12:29,243 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 23:12:29,400 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:12:29,409 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;@213e9c8b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:12:29,410 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 23:12:29,429 INFO L276 IsEmpty]: Start isEmpty. Operand has 3583 states, 2047 states have (on average 1.1656082071323888) internal successors, (2386), 2052 states have internal predecessors, (2386), 1509 states have call successors, (1509), 25 states have call predecessors, (1509), 25 states have return successors, (1509), 1507 states have call predecessors, (1509), 1509 states have call successors, (1509) [2023-11-06 23:12:29,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1377 [2023-11-06 23:12:29,551 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:29,553 INFO L195 NwaCegarLoop]: trace histogram [210, 210, 210, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:12:29,553 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:12:29,560 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:29,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1031046555, now seen corresponding path program 1 times [2023-11-06 23:12:29,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:12:29,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112044625] [2023-11-06 23:12:29,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:29,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms