./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_cd5445b1-b501-4e99-bf0d-883ec2b1438c/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5445b1-b501-4e99-bf0d-883ec2b1438c/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_cd5445b1-b501-4e99-bf0d-883ec2b1438c/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5445b1-b501-4e99-bf0d-883ec2b1438c/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5445b1-b501-4e99-bf0d-883ec2b1438c/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_cd5445b1-b501-4e99-bf0d-883ec2b1438c/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 a6fb157ae499b257dadbdfdc38e5d4454494023bad31f4939a5eb0b429ddb260 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:59:47,260 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:59:47,370 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5445b1-b501-4e99-bf0d-883ec2b1438c/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:59:47,380 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:59:47,380 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:59:47,425 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:59:47,428 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:59:47,429 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:59:47,430 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:59:47,437 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:59:47,439 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:59:47,439 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:59:47,440 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:59:47,442 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:59:47,442 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:59:47,443 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:59:47,443 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:59:47,444 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:59:47,444 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:59:47,445 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:59:47,445 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:59:47,446 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:59:47,446 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:59:47,446 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:59:47,447 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:59:47,448 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:59:47,448 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:59:47,449 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:59:47,449 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:59:47,450 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:59:47,451 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:59:47,451 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:59:47,452 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:59:47,452 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:59:47,452 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:59:47,452 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:59:47,453 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:59:47,453 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:59:47,453 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:59:47,453 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_cd5445b1-b501-4e99-bf0d-883ec2b1438c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5445b1-b501-4e99-bf0d-883ec2b1438c/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6fb157ae499b257dadbdfdc38e5d4454494023bad31f4939a5eb0b429ddb260 [2023-11-19 07:59:47,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:59:47,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:59:47,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:59:47,778 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:59:47,779 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:59:47,780 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5445b1-b501-4e99-bf0d-883ec2b1438c/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c [2023-11-19 07:59:51,050 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:59:51,494 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:59:51,494 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5445b1-b501-4e99-bf0d-883ec2b1438c/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c [2023-11-19 07:59:51,544 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5445b1-b501-4e99-bf0d-883ec2b1438c/bin/uautomizer-verify-uCwYo4JHxu/data/244df013d/a4cac02f564d40db87600ff85d6e157b/FLAG0f53f8391 [2023-11-19 07:59:51,561 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5445b1-b501-4e99-bf0d-883ec2b1438c/bin/uautomizer-verify-uCwYo4JHxu/data/244df013d/a4cac02f564d40db87600ff85d6e157b [2023-11-19 07:59:51,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:59:51,568 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:59:51,570 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:59:51,570 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:59:51,576 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:59:51,578 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:51" (1/1) ... [2023-11-19 07:59:51,580 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13f78dd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:51, skipping insertion in model container [2023-11-19 07:59:51,580 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:51" (1/1) ... [2023-11-19 07:59:51,698 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:59:51,893 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_cd5445b1-b501-4e99-bf0d-883ec2b1438c/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c[1871,1884] [2023-11-19 07:59:52,658 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:59:52,684 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:59:52,695 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/ctm.bug3.i","-S") [42] [2023-11-19 07:59:52,701 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_cd5445b1-b501-4e99-bf0d-883ec2b1438c/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c[1871,1884] [2023-11-19 07:59:53,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:59:53,066 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:59:53,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:53 WrapperNode [2023-11-19 07:59:53,067 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:59:53,068 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:59:53,068 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:59:53,069 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:59:53,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:53" (1/1) ... [2023-11-19 07:59:53,171 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:53" (1/1) ... [2023-11-19 07:59:53,550 INFO L138 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8541 [2023-11-19 07:59:53,551 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:59:53,552 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:59:53,552 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:59:53,553 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:59:53,562 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:53" (1/1) ... [2023-11-19 07:59:53,563 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:53" (1/1) ... [2023-11-19 07:59:53,615 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:53" (1/1) ... [2023-11-19 07:59:53,615 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:53" (1/1) ... [2023-11-19 07:59:53,774 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:53" (1/1) ... [2023-11-19 07:59:53,858 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:53" (1/1) ... [2023-11-19 07:59:53,901 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:53" (1/1) ... [2023-11-19 07:59:53,925 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:53" (1/1) ... [2023-11-19 07:59:53,975 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:59:53,977 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:59:53,977 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:59:53,977 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:59:53,978 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:53" (1/1) ... [2023-11-19 07:59:53,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:59:53,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5445b1-b501-4e99-bf0d-883ec2b1438c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:59:54,011 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5445b1-b501-4e99-bf0d-883ec2b1438c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:59:54,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd5445b1-b501-4e99-bf0d-883ec2b1438c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:59:54,056 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2023-11-19 07:59:54,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2023-11-19 07:59:54,057 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2023-11-19 07:59:54,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2023-11-19 07:59:54,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:59:54,057 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2023-11-19 07:59:54,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2023-11-19 07:59:54,058 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-11-19 07:59:54,058 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-11-19 07:59:54,058 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2023-11-19 07:59:54,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2023-11-19 07:59:54,060 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2023-11-19 07:59:54,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2023-11-19 07:59:54,060 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2023-11-19 07:59:54,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2023-11-19 07:59:54,061 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2023-11-19 07:59:54,061 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2023-11-19 07:59:54,061 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2023-11-19 07:59:54,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2023-11-19 07:59:54,061 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2023-11-19 07:59:54,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2023-11-19 07:59:54,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:59:54,062 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-11-19 07:59:54,062 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-11-19 07:59:54,063 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2023-11-19 07:59:54,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2023-11-19 07:59:54,063 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2023-11-19 07:59:54,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2023-11-19 07:59:54,063 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2023-11-19 07:59:54,064 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2023-11-19 07:59:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2023-11-19 07:59:54,065 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2023-11-19 07:59:54,065 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2023-11-19 07:59:54,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2023-11-19 07:59:54,066 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-11-19 07:59:54,066 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-11-19 07:59:54,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:59:54,066 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-11-19 07:59:54,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-11-19 07:59:54,067 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2023-11-19 07:59:54,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2023-11-19 07:59:54,067 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2023-11-19 07:59:54,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2023-11-19 07:59:54,067 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2023-11-19 07:59:54,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2023-11-19 07:59:54,068 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-11-19 07:59:54,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-11-19 07:59:54,068 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2023-11-19 07:59:54,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2023-11-19 07:59:54,068 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-11-19 07:59:54,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-11-19 07:59:54,069 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2023-11-19 07:59:54,069 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2023-11-19 07:59:54,069 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2023-11-19 07:59:54,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2023-11-19 07:59:54,069 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2023-11-19 07:59:54,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2023-11-19 07:59:54,070 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2023-11-19 07:59:54,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2023-11-19 07:59:54,070 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2023-11-19 07:59:54,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2023-11-19 07:59:54,070 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2023-11-19 07:59:54,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2023-11-19 07:59:54,071 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2023-11-19 07:59:54,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2023-11-19 07:59:54,071 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2023-11-19 07:59:54,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2023-11-19 07:59:54,072 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2023-11-19 07:59:54,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2023-11-19 07:59:54,073 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2023-11-19 07:59:54,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2023-11-19 07:59:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2023-11-19 07:59:54,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2023-11-19 07:59:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2023-11-19 07:59:54,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2023-11-19 07:59:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2023-11-19 07:59:54,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2023-11-19 07:59:54,076 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2023-11-19 07:59:54,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2023-11-19 07:59:54,076 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2023-11-19 07:59:54,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2023-11-19 07:59:54,076 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2023-11-19 07:59:54,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2023-11-19 07:59:54,077 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2023-11-19 07:59:54,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2023-11-19 07:59:54,077 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2023-11-19 07:59:54,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2023-11-19 07:59:54,077 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2023-11-19 07:59:54,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2023-11-19 07:59:54,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:59:54,078 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2023-11-19 07:59:54,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2023-11-19 07:59:54,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:59:54,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:59:54,650 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:59:54,657 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:00:23,580 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:00:23,618 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:00:23,618 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 08:00:23,638 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:23 BoogieIcfgContainer [2023-11-19 08:00:23,639 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:00:23,643 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:00:23,644 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:00:23,648 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:00:23,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:59:51" (1/3) ... [2023-11-19 08:00:23,649 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@118c63cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:00:23, skipping insertion in model container [2023-11-19 08:00:23,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:53" (2/3) ... [2023-11-19 08:00:23,652 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@118c63cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:00:23, skipping insertion in model container [2023-11-19 08:00:23,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:23" (3/3) ... [2023-11-19 08:00:23,654 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-2.c [2023-11-19 08:00:23,678 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:00:23,678 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 08:00:23,807 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:00:23,815 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;@2fba4e09, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:00:23,816 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 08:00:23,832 INFO L276 IsEmpty]: Start isEmpty. Operand has 2465 states, 2113 states have (on average 1.4803596781826787) internal successors, (3128), 2137 states have internal predecessors, (3128), 306 states have call successors, (306), 44 states have call predecessors, (306), 44 states have return successors, (306), 296 states have call predecessors, (306), 306 states have call successors, (306) [2023-11-19 08:00:23,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-19 08:00:23,868 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:00:23,869 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 08:00:23,870 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:00:23,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:23,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1381223433, now seen corresponding path program 1 times [2023-11-19 08:00:23,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:23,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222625751] [2023-11-19 08:00:23,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:23,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms