./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203695b7-6b28-4e96-89fa-8bc3fcb67de2/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203695b7-6b28-4e96-89fa-8bc3fcb67de2/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203695b7-6b28-4e96-89fa-8bc3fcb67de2/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203695b7-6b28-4e96-89fa-8bc3fcb67de2/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203695b7-6b28-4e96-89fa-8bc3fcb67de2/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203695b7-6b28-4e96-89fa-8bc3fcb67de2/bin/utaipan-verify-sOmjnqqW8E --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 20976b2d8a648a632a55cb7b6a072d8c835d658a3592a366af91723667ead694 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:43:04,736 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:43:04,839 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203695b7-6b28-4e96-89fa-8bc3fcb67de2/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-13 23:43:04,844 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:43:04,845 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:43:04,882 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:43:04,883 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:43:04,884 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:43:04,884 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:43:04,884 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:43:04,885 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:43:04,886 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:43:04,886 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:43:04,886 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:43:04,886 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:43:04,886 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:43:04,886 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:43:04,887 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:43:04,887 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:43:04,887 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:43:04,887 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:43:04,888 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:43:04,888 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:43:04,888 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:43:04,888 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:43:04,888 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:43:04,889 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:43:04,889 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:43:04,889 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:43:04,889 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:43:04,889 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:43:04,890 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:43:04,890 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:43:04,890 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:43:04,890 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:43:04,890 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:43:04,891 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:43:04,891 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:43:04,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:43:04,891 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:43:04,892 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:43:04,892 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:43:04,892 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:43:04,892 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:43:04,892 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:43:04,892 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:43:04,892 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:43:04,893 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_203695b7-6b28-4e96-89fa-8bc3fcb67de2/bin/utaipan-verify-sOmjnqqW8E 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 -> 20976b2d8a648a632a55cb7b6a072d8c835d658a3592a366af91723667ead694 [2024-11-13 23:43:05,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:43:05,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:43:05,248 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:43:05,250 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:43:05,250 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:43:05,252 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203695b7-6b28-4e96-89fa-8bc3fcb67de2/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c Unable to find full path for "g++" [2024-11-13 23:43:07,239 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:43:07,750 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:43:07,751 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203695b7-6b28-4e96-89fa-8bc3fcb67de2/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c [2024-11-13 23:43:07,788 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203695b7-6b28-4e96-89fa-8bc3fcb67de2/bin/utaipan-verify-sOmjnqqW8E/data/d44e35280/910b3987eb32490b8494558f88cec03f/FLAG8adcc1e1e [2024-11-13 23:43:07,805 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203695b7-6b28-4e96-89fa-8bc3fcb67de2/bin/utaipan-verify-sOmjnqqW8E/data/d44e35280/910b3987eb32490b8494558f88cec03f [2024-11-13 23:43:07,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:43:07,810 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:43:07,812 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:43:07,812 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:43:07,817 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:43:07,818 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:43:07" (1/1) ... [2024-11-13 23:43:07,819 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@642abd3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:07, skipping insertion in model container [2024-11-13 23:43:07,820 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:43:07" (1/1) ... [2024-11-13 23:43:07,922 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:43:08,129 WARN L250 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_203695b7-6b28-4e96-89fa-8bc3fcb67de2/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c[1807,1820] [2024-11-13 23:43:08,840 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:43:08,879 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:43:08,890 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/aso.ok2.i","-S") [39] [2024-11-13 23:43:08,899 WARN L250 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_203695b7-6b28-4e96-89fa-8bc3fcb67de2/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c[1807,1820] [2024-11-13 23:43:09,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:43:09,384 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:43:09,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:09 WrapperNode [2024-11-13 23:43:09,386 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:43:09,387 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:43:09,387 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:43:09,388 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:43:09,395 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:09" (1/1) ... [2024-11-13 23:43:09,506 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:09" (1/1) ... [2024-11-13 23:43:10,081 INFO L138 Inliner]: procedures = 70, calls = 5777, calls flagged for inlining = 25, calls inlined = 25, statements flattened = 12726 [2024-11-13 23:43:10,083 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:43:10,083 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:43:10,084 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:43:10,084 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:43:10,093 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:09" (1/1) ... [2024-11-13 23:43:10,093 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:09" (1/1) ... [2024-11-13 23:43:10,173 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:09" (1/1) ... [2024-11-13 23:43:10,174 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:09" (1/1) ... [2024-11-13 23:43:10,515 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:09" (1/1) ... [2024-11-13 23:43:10,536 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:09" (1/1) ... [2024-11-13 23:43:10,562 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:09" (1/1) ... [2024-11-13 23:43:10,585 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:09" (1/1) ... [2024-11-13 23:43:10,639 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:43:10,640 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:43:10,640 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:43:10,640 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:43:10,641 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:09" (1/1) ... [2024-11-13 23:43:10,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:43:10,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203695b7-6b28-4e96-89fa-8bc3fcb67de2/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:43:10,676 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203695b7-6b28-4e96-89fa-8bc3fcb67de2/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:43:10,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203695b7-6b28-4e96-89fa-8bc3fcb67de2/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:43:10,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:43:10,715 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_trans [2024-11-13 23:43:10,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_trans [2024-11-13 23:43:10,715 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2024-11-13 23:43:10,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2024-11-13 23:43:10,716 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2024-11-13 23:43:10,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2024-11-13 23:43:10,716 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2024-11-13 23:43:10,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2024-11-13 23:43:10,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 23:43:10,716 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2024-11-13 23:43:10,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2024-11-13 23:43:10,716 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2024-11-13 23:43:10,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2024-11-13 23:43:10,716 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2024-11-13 23:43:10,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2024-11-13 23:43:10,716 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2024-11-13 23:43:10,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2024-11-13 23:43:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 23:43:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2024-11-13 23:43:10,717 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2024-11-13 23:43:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2024-11-13 23:43:10,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2024-11-13 23:43:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2024-11-13 23:43:10,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2024-11-13 23:43:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2024-11-13 23:43:10,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2024-11-13 23:43:10,717 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2024-11-13 23:43:10,717 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2024-11-13 23:43:10,718 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2024-11-13 23:43:10,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2024-11-13 23:43:10,718 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2024-11-13 23:43:10,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2024-11-13 23:43:10,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 23:43:10,718 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2024-11-13 23:43:10,718 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2024-11-13 23:43:10,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 23:43:10,718 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2024-11-13 23:43:10,718 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2024-11-13 23:43:10,722 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2024-11-13 23:43:10,722 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2024-11-13 23:43:10,722 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2024-11-13 23:43:10,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2024-11-13 23:43:10,723 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2024-11-13 23:43:10,723 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2024-11-13 23:43:10,723 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 23:43:10,723 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 23:43:10,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:43:10,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:43:10,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:43:10,723 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2024-11-13 23:43:10,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2024-11-13 23:43:10,723 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2024-11-13 23:43:10,723 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2024-11-13 23:43:10,723 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2024-11-13 23:43:10,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2024-11-13 23:43:10,724 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2024-11-13 23:43:10,724 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2024-11-13 23:43:11,716 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:43:11,719 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:43:37,620 INFO L? ?]: Removed 503 outVars from TransFormulas that were not future-live. [2024-11-13 23:43:37,621 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:43:38,296 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:43:38,296 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 23:43:38,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:43:38 BoogieIcfgContainer [2024-11-13 23:43:38,297 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:43:38,302 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:43:38,302 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:43:38,315 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:43:38,316 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:43:07" (1/3) ... [2024-11-13 23:43:38,316 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dd4ae2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:43:38, skipping insertion in model container [2024-11-13 23:43:38,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:09" (2/3) ... [2024-11-13 23:43:38,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dd4ae2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:43:38, skipping insertion in model container [2024-11-13 23:43:38,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:43:38" (3/3) ... [2024-11-13 23:43:38,318 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_aso.2.M4-2.c [2024-11-13 23:43:38,345 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:43:38,351 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG rekh_aso.2.M4-2.c that has 26 procedures, 3403 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 23:43:38,615 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:43:38,648 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;@2f0637a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:43:38,653 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 23:43:38,689 INFO L276 IsEmpty]: Start isEmpty. Operand has 3403 states, 1868 states have (on average 1.176659528907923) internal successors, (2198), 1998 states have internal predecessors, (2198), 1508 states have call successors, (1508), 25 states have call predecessors, (1508), 25 states have return successors, (1508), 1408 states have call predecessors, (1508), 1508 states have call successors, (1508) [2024-11-13 23:43:38,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 954 [2024-11-13 23:43:38,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:43:38,824 INFO L215 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] [2024-11-13 23:43:38,828 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:43:38,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:43:38,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1607748420, now seen corresponding path program 1 times [2024-11-13 23:43:38,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:43:38,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681996491] [2024-11-13 23:43:38,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:43:38,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:54:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:55:39,337 INFO L134 CoverageAnalysis]: Checked inductivity of 43890 backedges. 208 proven. 1 refuted. 0 times theorem prover too weak. 43681 trivial. 0 not checked. [2024-11-13 23:55:39,340 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:55:39,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681996491] [2024-11-13 23:55:39,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681996491] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:55:39,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473037825] [2024-11-13 23:55:39,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:55:39,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:55:39,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203695b7-6b28-4e96-89fa-8bc3fcb67de2/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:55:39,349 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203695b7-6b28-4e96-89fa-8bc3fcb67de2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:55:39,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203695b7-6b28-4e96-89fa-8bc3fcb67de2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process