./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_fefcff44-972a-4879-b798-1713914d34d7/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefcff44-972a-4879-b798-1713914d34d7/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefcff44-972a-4879-b798-1713914d34d7/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefcff44-972a-4879-b798-1713914d34d7/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefcff44-972a-4879-b798-1713914d34d7/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefcff44-972a-4879-b798-1713914d34d7/bin/uautomizer-verify-uTZkv6EMXl --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 c3ec7c03a28dc415c6db5fadbfd8dcd491b1a493cd1bf88ef12d02131cd13437 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:30:17,057 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:30:17,181 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefcff44-972a-4879-b798-1713914d34d7/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:30:17,186 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:30:17,187 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:30:17,226 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:30:17,228 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:30:17,230 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:30:17,231 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:30:17,236 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:30:17,238 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:30:17,238 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:30:17,239 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:30:17,241 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:30:17,241 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:30:17,242 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:30:17,242 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:30:17,243 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:30:17,243 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:30:17,244 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:30:17,244 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:30:17,245 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:30:17,246 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:30:17,246 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:30:17,247 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:30:17,248 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:30:17,248 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:30:17,249 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:30:17,249 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:30:17,250 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:30:17,251 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:30:17,252 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:30:17,252 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:30:17,252 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:30:17,253 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:30:17,253 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:30:17,253 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:30:17,254 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:30:17,254 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:30:17,254 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_fefcff44-972a-4879-b798-1713914d34d7/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefcff44-972a-4879-b798-1713914d34d7/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3ec7c03a28dc415c6db5fadbfd8dcd491b1a493cd1bf88ef12d02131cd13437 [2023-11-12 02:30:17,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:30:17,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:30:17,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:30:17,640 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:30:17,641 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:30:17,642 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefcff44-972a-4879-b798-1713914d34d7/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c [2023-11-12 02:30:20,791 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:30:21,231 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:30:21,233 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefcff44-972a-4879-b798-1713914d34d7/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c [2023-11-12 02:30:21,273 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefcff44-972a-4879-b798-1713914d34d7/bin/uautomizer-verify-uTZkv6EMXl/data/bcc26c764/72b93390e0db46e9a26646e758dc7498/FLAG511acd13d [2023-11-12 02:30:21,292 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefcff44-972a-4879-b798-1713914d34d7/bin/uautomizer-verify-uTZkv6EMXl/data/bcc26c764/72b93390e0db46e9a26646e758dc7498 [2023-11-12 02:30:21,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:30:21,300 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:30:21,304 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:30:21,304 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:30:21,309 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:30:21,310 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:30:21" (1/1) ... [2023-11-12 02:30:21,311 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d46e962 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:21, skipping insertion in model container [2023-11-12 02:30:21,312 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:30:21" (1/1) ... [2023-11-12 02:30:21,436 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:30:21,674 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_fefcff44-972a-4879-b798-1713914d34d7/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c[1868,1881] [2023-11-12 02:30:22,500 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:30:22,544 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:30:22,555 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/ctm.ok1.i","-S") [42] [2023-11-12 02:30:22,566 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_fefcff44-972a-4879-b798-1713914d34d7/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c[1868,1881] [2023-11-12 02:30:22,849 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:30:22,916 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:30:22,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:22 WrapperNode [2023-11-12 02:30:22,917 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:30:22,918 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:30:22,923 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:30:22,923 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:30:22,931 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:22" (1/1) ... [2023-11-12 02:30:23,049 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:22" (1/1) ... [2023-11-12 02:30:23,393 INFO L138 Inliner]: procedures = 99, calls = 2727, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8412 [2023-11-12 02:30:23,394 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:30:23,394 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:30:23,394 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:30:23,395 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:30:23,409 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:22" (1/1) ... [2023-11-12 02:30:23,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:22" (1/1) ... [2023-11-12 02:30:23,523 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:22" (1/1) ... [2023-11-12 02:30:23,523 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:22" (1/1) ... [2023-11-12 02:30:23,851 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:22" (1/1) ... [2023-11-12 02:30:23,893 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:22" (1/1) ... [2023-11-12 02:30:23,920 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:22" (1/1) ... [2023-11-12 02:30:23,945 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:22" (1/1) ... [2023-11-12 02:30:23,984 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:30:23,985 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:30:23,985 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:30:23,985 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:30:23,986 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:22" (1/1) ... [2023-11-12 02:30:23,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:30:24,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefcff44-972a-4879-b798-1713914d34d7/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:30:24,025 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefcff44-972a-4879-b798-1713914d34d7/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:30:24,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fefcff44-972a-4879-b798-1713914d34d7/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:30:24,071 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2023-11-12 02:30:24,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2023-11-12 02:30:24,071 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2023-11-12 02:30:24,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2023-11-12 02:30:24,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:30:24,072 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2023-11-12 02:30:24,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2023-11-12 02:30:24,072 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-11-12 02:30:24,072 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-11-12 02:30:24,073 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2023-11-12 02:30:24,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2023-11-12 02:30:24,074 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2023-11-12 02:30:24,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2023-11-12 02:30:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2023-11-12 02:30:24,075 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2023-11-12 02:30:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2023-11-12 02:30:24,075 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2023-11-12 02:30:24,075 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2023-11-12 02:30:24,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2023-11-12 02:30:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2023-11-12 02:30:24,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2023-11-12 02:30:24,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:30:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-11-12 02:30:24,077 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-11-12 02:30:24,077 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2023-11-12 02:30:24,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2023-11-12 02:30:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2023-11-12 02:30:24,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2023-11-12 02:30:24,078 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2023-11-12 02:30:24,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2023-11-12 02:30:24,079 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2023-11-12 02:30:24,079 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2023-11-12 02:30:24,080 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2023-11-12 02:30:24,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2023-11-12 02:30:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-11-12 02:30:24,081 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-11-12 02:30:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:30:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-11-12 02:30:24,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-11-12 02:30:24,081 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2023-11-12 02:30:24,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2023-11-12 02:30:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2023-11-12 02:30:24,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2023-11-12 02:30:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2023-11-12 02:30:24,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2023-11-12 02:30:24,082 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-11-12 02:30:24,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-11-12 02:30:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2023-11-12 02:30:24,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2023-11-12 02:30:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-11-12 02:30:24,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-11-12 02:30:24,083 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2023-11-12 02:30:24,084 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2023-11-12 02:30:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2023-11-12 02:30:24,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2023-11-12 02:30:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2023-11-12 02:30:24,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2023-11-12 02:30:24,084 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2023-11-12 02:30:24,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2023-11-12 02:30:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2023-11-12 02:30:24,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2023-11-12 02:30:24,085 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2023-11-12 02:30:24,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2023-11-12 02:30:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2023-11-12 02:30:24,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2023-11-12 02:30:24,086 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2023-11-12 02:30:24,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2023-11-12 02:30:24,087 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2023-11-12 02:30:24,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2023-11-12 02:30:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2023-11-12 02:30:24,088 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2023-11-12 02:30:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2023-11-12 02:30:24,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2023-11-12 02:30:24,089 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2023-11-12 02:30:24,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2023-11-12 02:30:24,090 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2023-11-12 02:30:24,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2023-11-12 02:30:24,090 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2023-11-12 02:30:24,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2023-11-12 02:30:24,091 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2023-11-12 02:30:24,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2023-11-12 02:30:24,091 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2023-11-12 02:30:24,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2023-11-12 02:30:24,091 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2023-11-12 02:30:24,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2023-11-12 02:30:24,092 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2023-11-12 02:30:24,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2023-11-12 02:30:24,092 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2023-11-12 02:30:24,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2023-11-12 02:30:24,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:30:24,093 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2023-11-12 02:30:24,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2023-11-12 02:30:24,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:30:24,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:30:24,707 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:30:24,710 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:30:48,893 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:30:48,920 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:30:48,921 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 02:30:48,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:30:48 BoogieIcfgContainer [2023-11-12 02:30:48,926 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:30:48,929 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:30:48,929 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:30:48,933 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:30:48,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:30:21" (1/3) ... [2023-11-12 02:30:48,934 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1faa5547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:30:48, skipping insertion in model container [2023-11-12 02:30:48,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:30:22" (2/3) ... [2023-11-12 02:30:48,934 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1faa5547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:30:48, skipping insertion in model container [2023-11-12 02:30:48,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:30:48" (3/3) ... [2023-11-12 02:30:48,936 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.1.c [2023-11-12 02:30:48,956 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:30:48,956 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:30:49,050 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:30:49,057 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;@75887e7d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:30:49,058 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:30:49,072 INFO L276 IsEmpty]: Start isEmpty. Operand has 2464 states, 2113 states have (on average 1.480832938949361) internal successors, (3129), 2137 states have internal predecessors, (3129), 305 states have call successors, (305), 44 states have call predecessors, (305), 44 states have return successors, (305), 295 states have call predecessors, (305), 305 states have call successors, (305) [2023-11-12 02:30:49,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-12 02:30:49,096 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:30:49,096 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] [2023-11-12 02:30:49,097 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:30:49,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:30:49,103 INFO L85 PathProgramCache]: Analyzing trace with hash 463341211, now seen corresponding path program 1 times [2023-11-12 02:30:49,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:30:49,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615394405] [2023-11-12 02:30:49,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:30:49,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms