./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_6acef07c-688b-4961-8edb-abb9e2876e55/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acef07c-688b-4961-8edb-abb9e2876e55/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acef07c-688b-4961-8edb-abb9e2876e55/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acef07c-688b-4961-8edb-abb9e2876e55/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acef07c-688b-4961-8edb-abb9e2876e55/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acef07c-688b-4961-8edb-abb9e2876e55/bin/utaipan-verify-DbMuA5NWw2 --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 d66bda3f947b403f01c3d2c281ac384b241cf0bf9299658426cacf75877297a8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 11:23:36,870 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 11:23:36,932 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acef07c-688b-4961-8edb-abb9e2876e55/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 11:23:36,936 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 11:23:36,937 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 11:23:36,960 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 11:23:36,960 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 11:23:36,961 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 11:23:36,961 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 11:23:36,962 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 11:23:36,962 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 11:23:36,963 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 11:23:36,963 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 11:23:36,964 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 11:23:36,964 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 11:23:36,965 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 11:23:36,965 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 11:23:36,966 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 11:23:36,966 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 11:23:36,967 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 11:23:36,967 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 11:23:36,968 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 11:23:36,969 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 11:23:36,969 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 11:23:36,970 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 11:23:36,970 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 11:23:36,971 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 11:23:36,971 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 11:23:36,972 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 11:23:36,976 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 11:23:36,977 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 11:23:36,977 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 11:23:36,978 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 11:23:36,978 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 11:23:36,978 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 11:23:36,982 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 11:23:36,982 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 11:23:36,983 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 11:23:36,983 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:23:36,984 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 11:23:36,984 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 11:23:36,988 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 11:23:36,989 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 11:23:36,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 11:23:36,989 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 11:23:36,990 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 11:23:36,990 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 11:23:36,990 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_6acef07c-688b-4961-8edb-abb9e2876e55/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acef07c-688b-4961-8edb-abb9e2876e55/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d66bda3f947b403f01c3d2c281ac384b241cf0bf9299658426cacf75877297a8 [2024-11-02 11:23:37,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 11:23:37,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 11:23:37,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 11:23:37,324 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 11:23:37,325 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 11:23:37,326 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acef07c-688b-4961-8edb-abb9e2876e55/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-1.c Unable to find full path for "g++" [2024-11-02 11:23:39,537 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 11:23:40,031 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 11:23:40,032 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acef07c-688b-4961-8edb-abb9e2876e55/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-1.c [2024-11-02 11:23:40,058 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acef07c-688b-4961-8edb-abb9e2876e55/bin/utaipan-verify-DbMuA5NWw2/data/29aabbbe6/807fe33addb84f3eb3f26c4d75e4bb22/FLAGef515c4cb [2024-11-02 11:23:40,078 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acef07c-688b-4961-8edb-abb9e2876e55/bin/utaipan-verify-DbMuA5NWw2/data/29aabbbe6/807fe33addb84f3eb3f26c4d75e4bb22 [2024-11-02 11:23:40,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 11:23:40,085 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 11:23:40,086 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 11:23:40,087 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 11:23:40,095 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 11:23:40,096 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:23:40" (1/1) ... [2024-11-02 11:23:40,098 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ddf5e58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:40, skipping insertion in model container [2024-11-02 11:23:40,098 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:23:40" (1/1) ... [2024-11-02 11:23:40,174 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 11:23:40,450 WARN L251 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_6acef07c-688b-4961-8edb-abb9e2876e55/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-1.c[1974,1987] [2024-11-02 11:23:41,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:23:41,199 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 11:23:41,211 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/aso.bug2.i","-S") [47] [2024-11-02 11:23:41,221 WARN L251 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_6acef07c-688b-4961-8edb-abb9e2876e55/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-1.c[1974,1987] [2024-11-02 11:23:41,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:23:41,591 INFO L204 MainTranslator]: Completed translation [2024-11-02 11:23:41,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:41 WrapperNode [2024-11-02 11:23:41,592 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 11:23:41,593 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 11:23:41,593 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 11:23:41,593 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 11:23:41,601 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:41" (1/1) ... [2024-11-02 11:23:41,737 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:41" (1/1) ... [2024-11-02 11:23:42,042 INFO L138 Inliner]: procedures = 61, calls = 3507, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 7646 [2024-11-02 11:23:42,043 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 11:23:42,044 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 11:23:42,044 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 11:23:42,044 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 11:23:42,054 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:41" (1/1) ... [2024-11-02 11:23:42,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:41" (1/1) ... [2024-11-02 11:23:42,233 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:41" (1/1) ... [2024-11-02 11:23:42,234 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:41" (1/1) ... [2024-11-02 11:23:42,437 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:41" (1/1) ... [2024-11-02 11:23:42,469 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:41" (1/1) ... [2024-11-02 11:23:42,508 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:41" (1/1) ... [2024-11-02 11:23:42,529 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:41" (1/1) ... [2024-11-02 11:23:42,589 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 11:23:42,591 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 11:23:42,591 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 11:23:42,591 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 11:23:42,592 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:41" (1/1) ... [2024-11-02 11:23:42,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:23:42,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acef07c-688b-4961-8edb-abb9e2876e55/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:23:42,633 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acef07c-688b-4961-8edb-abb9e2876e55/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 11:23:42,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6acef07c-688b-4961-8edb-abb9e2876e55/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 11:23:42,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 11:23:42,671 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2024-11-02 11:23:42,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2024-11-02 11:23:42,673 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2024-11-02 11:23:42,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2024-11-02 11:23:42,673 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2024-11-02 11:23:42,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2024-11-02 11:23:42,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 11:23:42,715 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2024-11-02 11:23:42,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2024-11-02 11:23:42,715 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2024-11-02 11:23:42,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2024-11-02 11:23:42,716 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2024-11-02 11:23:42,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2024-11-02 11:23:42,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 11:23:42,716 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2024-11-02 11:23:42,717 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2024-11-02 11:23:42,718 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2024-11-02 11:23:42,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2024-11-02 11:23:42,718 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2024-11-02 11:23:42,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2024-11-02 11:23:42,719 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2024-11-02 11:23:42,719 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2024-11-02 11:23:42,719 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2024-11-02 11:23:42,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2024-11-02 11:23:42,720 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2024-11-02 11:23:42,720 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2024-11-02 11:23:42,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 11:23:42,721 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2024-11-02 11:23:42,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2024-11-02 11:23:42,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 11:23:42,722 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2024-11-02 11:23:42,723 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2024-11-02 11:23:42,723 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2024-11-02 11:23:42,723 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2024-11-02 11:23:42,723 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2024-11-02 11:23:42,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2024-11-02 11:23:42,724 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2024-11-02 11:23:42,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2024-11-02 11:23:42,724 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 11:23:42,724 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 11:23:42,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 11:23:42,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 11:23:42,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 11:23:42,725 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2024-11-02 11:23:42,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2024-11-02 11:23:42,726 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2024-11-02 11:23:42,726 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2024-11-02 11:23:42,726 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2024-11-02 11:23:42,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2024-11-02 11:23:42,727 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2024-11-02 11:23:42,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2024-11-02 11:23:43,374 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 11:23:43,377 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 11:23:58,460 INFO L? ?]: Removed 414 outVars from TransFormulas that were not future-live. [2024-11-02 11:23:58,460 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 11:23:58,996 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 11:23:58,996 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 11:23:58,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:23:58 BoogieIcfgContainer [2024-11-02 11:23:58,997 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 11:23:59,001 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 11:23:59,001 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 11:23:59,004 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 11:23:59,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:23:40" (1/3) ... [2024-11-02 11:23:59,005 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bb392d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:23:59, skipping insertion in model container [2024-11-02 11:23:59,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:23:41" (2/3) ... [2024-11-02 11:23:59,007 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bb392d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:23:59, skipping insertion in model container [2024-11-02 11:23:59,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:23:58" (3/3) ... [2024-11-02 11:23:59,009 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_aso.2.M4-1.c [2024-11-02 11:23:59,027 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 11:23:59,027 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 11:23:59,184 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 11:23:59,192 INFO L333 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, 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;@9418d7f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 11:23:59,192 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 11:23:59,205 INFO L276 IsEmpty]: Start isEmpty. Operand has 2200 states, 1208 states have (on average 1.2193708609271523) internal successors, (1473), 1337 states have internal predecessors, (1473), 968 states have call successors, (968), 22 states have call predecessors, (968), 22 states have return successors, (968), 868 states have call predecessors, (968), 968 states have call successors, (968) [2024-11-02 11:23:59,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 913 [2024-11-02 11:23:59,289 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:23:59,291 INFO L215 NwaCegarLoop]: trace histogram [209, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:23:59,291 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:23:59,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:23:59,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1700327255, now seen corresponding path program 1 times [2024-11-02 11:23:59,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:23:59,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117901061] [2024-11-02 11:23:59,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:23:59,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms