./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M4.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_39cfb1da-a7a1-4359-bf17-f6f585df88ef/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cfb1da-a7a1-4359-bf17-f6f585df88ef/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cfb1da-a7a1-4359-bf17-f6f585df88ef/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cfb1da-a7a1-4359-bf17-f6f585df88ef/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cfb1da-a7a1-4359-bf17-f6f585df88ef/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cfb1da-a7a1-4359-bf17-f6f585df88ef/bin/utaipan-verify-t7M7D8N6sZ --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 88c381f80ede07771f395015e897371ba8d778e07b9cc24c64e290568f2e97f7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:17:47,950 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:17:48,038 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cfb1da-a7a1-4359-bf17-f6f585df88ef/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:17:48,044 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:17:48,044 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:17:48,071 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:17:48,072 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:17:48,073 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:17:48,074 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:17:48,074 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:17:48,075 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:17:48,076 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:17:48,076 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:17:48,077 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:17:48,077 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:17:48,078 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:17:48,079 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:17:48,079 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:17:48,080 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:17:48,080 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:17:48,081 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:17:48,082 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:17:48,083 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:17:48,083 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:17:48,084 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:17:48,084 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:17:48,085 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:17:48,085 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:17:48,085 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:17:48,086 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:17:48,086 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:17:48,087 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:17:48,087 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:17:48,088 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:17:48,088 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:17:48,089 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:17:48,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:17:48,090 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:17:48,090 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:17:48,091 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:17:48,091 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:17:48,092 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:17:48,092 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:17:48,093 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:17:48,093 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:17:48,093 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_39cfb1da-a7a1-4359-bf17-f6f585df88ef/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cfb1da-a7a1-4359-bf17-f6f585df88ef/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88c381f80ede07771f395015e897371ba8d778e07b9cc24c64e290568f2e97f7 [2023-11-19 04:17:48,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:17:48,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:17:48,418 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:17:48,419 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:17:48,420 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:17:48,423 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cfb1da-a7a1-4359-bf17-f6f585df88ef/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M4.c [2023-11-19 04:17:51,573 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:17:52,102 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:17:52,103 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cfb1da-a7a1-4359-bf17-f6f585df88ef/sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M4.c [2023-11-19 04:17:52,141 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cfb1da-a7a1-4359-bf17-f6f585df88ef/bin/utaipan-verify-t7M7D8N6sZ/data/bcd0056b4/1e9708f95ec44772913755430a7a05ee/FLAGfeca0bbd8 [2023-11-19 04:17:52,158 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cfb1da-a7a1-4359-bf17-f6f585df88ef/bin/utaipan-verify-t7M7D8N6sZ/data/bcd0056b4/1e9708f95ec44772913755430a7a05ee [2023-11-19 04:17:52,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:17:52,169 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:17:52,173 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:17:52,173 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:17:52,178 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:17:52,179 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:17:52" (1/1) ... [2023-11-19 04:17:52,181 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1138c86b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:52, skipping insertion in model container [2023-11-19 04:17:52,181 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:17:52" (1/1) ... [2023-11-19 04:17:52,298 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:17:52,526 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_39cfb1da-a7a1-4359-bf17-f6f585df88ef/sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M4.c[1806,1819] [2023-11-19 04:17:53,218 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:17:53,239 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:17:53,250 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/aso.bug3.i","-S") [39] [2023-11-19 04:17:53,256 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_39cfb1da-a7a1-4359-bf17-f6f585df88ef/sv-benchmarks/c/seq-mthreaded/rekh_aso.3.M4.c[1806,1819] [2023-11-19 04:17:53,613 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:17:53,640 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:17:53,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:53 WrapperNode [2023-11-19 04:17:53,640 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:17:53,642 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:17:53,642 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:17:53,642 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:17:53,649 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:53" (1/1) ... [2023-11-19 04:17:53,807 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:53" (1/1) ... [2023-11-19 04:17:54,330 INFO L138 Inliner]: procedures = 70, calls = 5239, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 10107 [2023-11-19 04:17:54,330 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:17:54,331 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:17:54,332 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:17:54,332 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:17:54,342 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:53" (1/1) ... [2023-11-19 04:17:54,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:53" (1/1) ... [2023-11-19 04:17:54,435 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:53" (1/1) ... [2023-11-19 04:17:54,435 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:53" (1/1) ... [2023-11-19 04:17:54,711 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:53" (1/1) ... [2023-11-19 04:17:54,746 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:53" (1/1) ... [2023-11-19 04:17:54,792 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:53" (1/1) ... [2023-11-19 04:17:54,815 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:53" (1/1) ... [2023-11-19 04:17:54,895 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:17:54,896 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:17:54,897 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:17:54,897 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:17:54,898 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:53" (1/1) ... [2023-11-19 04:17:54,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:17:54,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cfb1da-a7a1-4359-bf17-f6f585df88ef/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:17:54,937 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cfb1da-a7a1-4359-bf17-f6f585df88ef/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:17:54,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39cfb1da-a7a1-4359-bf17-f6f585df88ef/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:17:54,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:17:54,976 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2023-11-19 04:17:54,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2023-11-19 04:17:54,977 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-11-19 04:17:54,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-11-19 04:17:54,979 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-11-19 04:17:54,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-11-19 04:17:54,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:17:54,979 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-11-19 04:17:54,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-11-19 04:17:54,980 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-11-19 04:17:54,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-11-19 04:17:54,980 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2023-11-19 04:17:54,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2023-11-19 04:17:54,980 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-11-19 04:17:54,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-11-19 04:17:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:17:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-11-19 04:17:54,982 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-11-19 04:17:54,982 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_version [2023-11-19 04:17:54,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_version [2023-11-19 04:17:54,982 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-11-19 04:17:54,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-11-19 04:17:54,984 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2023-11-19 04:17:54,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2023-11-19 04:17:54,984 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2023-11-19 04:17:54,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2023-11-19 04:17:54,985 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-11-19 04:17:54,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-11-19 04:17:54,986 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_version [2023-11-19 04:17:54,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_version [2023-11-19 04:17:54,986 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-11-19 04:17:54,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-11-19 04:17:54,986 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2023-11-19 04:17:54,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2023-11-19 04:17:54,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:17:54,987 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2023-11-19 04:17:54,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2023-11-19 04:17:54,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:17:54,987 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-11-19 04:17:54,988 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-11-19 04:17:54,988 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-11-19 04:17:54,988 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-11-19 04:17:54,988 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2023-11-19 04:17:54,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2023-11-19 04:17:54,989 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2023-11-19 04:17:54,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2023-11-19 04:17:54,989 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:17:54,989 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:17:54,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:17:54,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:17:54,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:17:54,990 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-11-19 04:17:54,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-11-19 04:17:54,990 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-11-19 04:17:54,990 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-11-19 04:17:54,991 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-11-19 04:17:54,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-11-19 04:17:54,991 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2023-11-19 04:17:54,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2023-11-19 04:17:55,849 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:17:55,852 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:18:38,081 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:18:38,705 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:18:38,705 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:18:38,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:18:38 BoogieIcfgContainer [2023-11-19 04:18:38,731 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:18:38,735 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:18:38,735 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:18:38,738 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:18:38,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:17:52" (1/3) ... [2023-11-19 04:18:38,741 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25d8f15a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:18:38, skipping insertion in model container [2023-11-19 04:18:38,741 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:17:53" (2/3) ... [2023-11-19 04:18:38,743 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25d8f15a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:18:38, skipping insertion in model container [2023-11-19 04:18:38,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:18:38" (3/3) ... [2023-11-19 04:18:38,745 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_aso.3.M4.c [2023-11-19 04:18:38,766 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:18:38,766 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:18:38,903 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:18:38,912 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=FINITE_AUTOMATA, 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;@53e8ee60, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:18:38,913 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:18:38,937 INFO L276 IsEmpty]: Start isEmpty. Operand has 3537 states, 1998 states have (on average 1.165165165165165) internal successors, (2328), 2003 states have internal predecessors, (2328), 1511 states have call successors, (1511), 26 states have call predecessors, (1511), 26 states have return successors, (1511), 1509 states have call predecessors, (1511), 1511 states have call successors, (1511) [2023-11-19 04:18:39,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 954 [2023-11-19 04:18:39,014 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:18:39,016 INFO L195 NwaCegarLoop]: trace histogram [210, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:18:39,016 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:18:39,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:18:39,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1127506965, now seen corresponding path program 1 times [2023-11-19 04:18:39,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:18:39,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756788195] [2023-11-19 04:18:39,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:18:39,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms