./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.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_65b393fe-948f-4207-96a4-4e0612a75a3c/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b393fe-948f-4207-96a4-4e0612a75a3c/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_65b393fe-948f-4207-96a4-4e0612a75a3c/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b393fe-948f-4207-96a4-4e0612a75a3c/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b393fe-948f-4207-96a4-4e0612a75a3c/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_65b393fe-948f-4207-96a4-4e0612a75a3c/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 436e6e57c04bd43264564f478c3aa92ec3799e6c36d71ae9bac6692f2873338f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:57:04,854 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:57:04,973 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b393fe-948f-4207-96a4-4e0612a75a3c/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:57:04,982 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:57:04,983 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:57:05,018 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:57:05,019 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:57:05,019 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:57:05,020 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:57:05,021 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:57:05,022 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:57:05,022 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:57:05,023 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:57:05,024 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:57:05,025 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:57:05,025 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:57:05,026 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:57:05,027 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:57:05,027 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:57:05,028 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:57:05,029 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:57:05,034 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:57:05,034 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:57:05,035 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:57:05,035 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:57:05,036 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:57:05,037 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:57:05,037 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:57:05,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:57:05,038 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:57:05,040 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:57:05,040 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:57:05,040 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:57:05,040 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:57:05,041 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:57:05,041 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:57:05,041 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:57:05,042 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:57:05,042 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:57:05,042 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_65b393fe-948f-4207-96a4-4e0612a75a3c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b393fe-948f-4207-96a4-4e0612a75a3c/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 436e6e57c04bd43264564f478c3aa92ec3799e6c36d71ae9bac6692f2873338f [2023-11-19 07:57:05,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:57:05,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:57:05,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:57:05,402 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:57:05,403 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:57:05,404 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b393fe-948f-4207-96a4-4e0612a75a3c/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c [2023-11-19 07:57:08,812 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:57:09,263 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:57:09,265 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b393fe-948f-4207-96a4-4e0612a75a3c/sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c [2023-11-19 07:57:09,300 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b393fe-948f-4207-96a4-4e0612a75a3c/bin/uautomizer-verify-uCwYo4JHxu/data/5db01f143/c2f7d890c3874c7eb7bda741ab6510d2/FLAGe42bef1ad [2023-11-19 07:57:09,320 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b393fe-948f-4207-96a4-4e0612a75a3c/bin/uautomizer-verify-uCwYo4JHxu/data/5db01f143/c2f7d890c3874c7eb7bda741ab6510d2 [2023-11-19 07:57:09,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:57:09,329 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:57:09,334 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:57:09,334 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:57:09,340 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:57:09,342 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:09" (1/1) ... [2023-11-19 07:57:09,344 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11053f2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:09, skipping insertion in model container [2023-11-19 07:57:09,344 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:57:09" (1/1) ... [2023-11-19 07:57:09,498 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:57:09,693 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_65b393fe-948f-4207-96a4-4e0612a75a3c/sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c[1868,1881] [2023-11-19 07:57:10,382 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:57:10,418 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:57:10,428 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/ctm.ok4.i","-S") [42] [2023-11-19 07:57:10,437 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_65b393fe-948f-4207-96a4-4e0612a75a3c/sv-benchmarks/c/seq-mthreaded/rekh_ctm.4.c[1868,1881] [2023-11-19 07:57:10,752 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:57:10,812 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:57:10,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10 WrapperNode [2023-11-19 07:57:10,813 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:57:10,814 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:57:10,814 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:57:10,814 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:57:10,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:10,908 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:11,178 INFO L138 Inliner]: procedures = 99, calls = 2906, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8677 [2023-11-19 07:57:11,178 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:57:11,179 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:57:11,179 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:57:11,179 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:57:11,189 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:11,189 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:11,249 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:11,249 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:11,422 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:11,461 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:11,503 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:11,623 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:11,679 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:57:11,681 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:57:11,681 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:57:11,681 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:57:11,682 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (1/1) ... [2023-11-19 07:57:11,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:57:11,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b393fe-948f-4207-96a4-4e0612a75a3c/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:57:11,714 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b393fe-948f-4207-96a4-4e0612a75a3c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:57:11,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_65b393fe-948f-4207-96a4-4e0612a75a3c/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:57:11,811 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2023-11-19 07:57:11,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2023-11-19 07:57:11,812 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2023-11-19 07:57:11,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2023-11-19 07:57:11,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:57:11,812 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2023-11-19 07:57:11,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2023-11-19 07:57:11,813 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-11-19 07:57:11,813 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-11-19 07:57:11,813 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2023-11-19 07:57:11,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2023-11-19 07:57:11,818 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2023-11-19 07:57:11,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2023-11-19 07:57:11,819 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2023-11-19 07:57:11,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2023-11-19 07:57:11,819 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2023-11-19 07:57:11,819 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2023-11-19 07:57:11,819 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2023-11-19 07:57:11,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2023-11-19 07:57:11,820 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2023-11-19 07:57:11,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2023-11-19 07:57:11,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:57:11,820 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-11-19 07:57:11,821 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-11-19 07:57:11,822 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2023-11-19 07:57:11,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2023-11-19 07:57:11,822 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2023-11-19 07:57:11,822 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2023-11-19 07:57:11,822 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2023-11-19 07:57:11,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2023-11-19 07:57:11,823 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2023-11-19 07:57:11,824 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2023-11-19 07:57:11,824 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2023-11-19 07:57:11,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2023-11-19 07:57:11,825 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-11-19 07:57:11,825 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-11-19 07:57:11,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:57:11,825 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-11-19 07:57:11,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-11-19 07:57:11,825 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2023-11-19 07:57:11,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2023-11-19 07:57:11,826 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2023-11-19 07:57:11,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2023-11-19 07:57:11,826 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2023-11-19 07:57:11,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2023-11-19 07:57:11,826 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-11-19 07:57:11,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-11-19 07:57:11,827 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2023-11-19 07:57:11,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2023-11-19 07:57:11,827 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-11-19 07:57:11,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-11-19 07:57:11,827 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2023-11-19 07:57:11,827 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2023-11-19 07:57:11,828 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2023-11-19 07:57:11,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2023-11-19 07:57:11,828 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2023-11-19 07:57:11,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2023-11-19 07:57:11,828 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2023-11-19 07:57:11,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2023-11-19 07:57:11,829 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2023-11-19 07:57:11,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2023-11-19 07:57:11,829 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2023-11-19 07:57:11,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2023-11-19 07:57:11,829 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2023-11-19 07:57:11,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2023-11-19 07:57:11,830 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2023-11-19 07:57:11,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2023-11-19 07:57:11,831 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2023-11-19 07:57:11,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2023-11-19 07:57:11,832 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2023-11-19 07:57:11,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2023-11-19 07:57:11,832 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2023-11-19 07:57:11,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2023-11-19 07:57:11,832 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2023-11-19 07:57:11,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2023-11-19 07:57:11,833 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2023-11-19 07:57:11,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2023-11-19 07:57:11,834 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2023-11-19 07:57:11,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2023-11-19 07:57:11,834 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2023-11-19 07:57:11,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2023-11-19 07:57:11,835 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2023-11-19 07:57:11,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2023-11-19 07:57:11,835 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2023-11-19 07:57:11,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2023-11-19 07:57:11,835 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2023-11-19 07:57:11,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2023-11-19 07:57:11,836 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2023-11-19 07:57:11,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2023-11-19 07:57:11,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:57:11,837 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2023-11-19 07:57:11,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2023-11-19 07:57:11,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:57:11,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:57:12,439 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:57:12,442 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:57:48,498 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:57:48,530 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:57:48,530 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 07:57:48,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:48 BoogieIcfgContainer [2023-11-19 07:57:48,543 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:57:48,545 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:57:48,546 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:57:48,549 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:57:48,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:57:09" (1/3) ... [2023-11-19 07:57:48,550 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f357e60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:57:48, skipping insertion in model container [2023-11-19 07:57:48,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:57:10" (2/3) ... [2023-11-19 07:57:48,551 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f357e60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:57:48, skipping insertion in model container [2023-11-19 07:57:48,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:57:48" (3/3) ... [2023-11-19 07:57:48,552 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.4.c [2023-11-19 07:57:48,573 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:57:48,573 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:57:48,679 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:57:48,685 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;@2f4e8d3b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:57:48,686 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:57:48,698 INFO L276 IsEmpty]: Start isEmpty. Operand has 2469 states, 2115 states have (on average 1.4799054373522458) internal successors, (3130), 2139 states have internal predecessors, (3130), 308 states have call successors, (308), 44 states have call predecessors, (308), 44 states have return successors, (308), 298 states have call predecessors, (308), 308 states have call successors, (308) [2023-11-19 07:57:48,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-19 07:57:48,719 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:57:48,720 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:57:48,720 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:57:48,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:57:48,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1151272851, now seen corresponding path program 1 times [2023-11-19 07:57:48,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:57:48,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071524373] [2023-11-19 07:57:48,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:57:48,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms