./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-1.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_25d7b656-783c-4b3b-a16e-2d92b8a11e16/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d7b656-783c-4b3b-a16e-2d92b8a11e16/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_25d7b656-783c-4b3b-a16e-2d92b8a11e16/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d7b656-783c-4b3b-a16e-2d92b8a11e16/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d7b656-783c-4b3b-a16e-2d92b8a11e16/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_25d7b656-783c-4b3b-a16e-2d92b8a11e16/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 0cc4860b4f5a0d0365cbcd156b11008fe087fa6dc867cdd4b4d117ba6b8a4a03 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:11:14,480 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:11:14,552 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d7b656-783c-4b3b-a16e-2d92b8a11e16/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 04:11:14,558 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:11:14,558 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:11:14,582 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:11:14,583 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:11:14,583 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:11:14,583 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:11:14,583 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:11:14,584 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:11:14,584 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:11:14,584 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:11:14,584 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:11:14,584 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:11:14,584 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:11:14,585 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:11:14,585 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:11:14,585 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:11:14,585 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:11:14,585 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:11:14,585 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:11:14,586 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:11:14,586 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:11:14,586 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:11:14,586 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:11:14,587 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:11:14,587 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:11:14,587 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:11:14,587 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:11:14,587 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:11:14,587 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:11:14,587 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:11:14,588 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:11:14,588 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:11:14,588 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:11:14,588 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:11:14,588 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:11:14,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:11:14,589 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:11:14,589 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:11:14,589 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:11:14,589 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:11:14,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:11:14,589 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:11:14,589 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:11:14,590 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:11:14,590 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_25d7b656-783c-4b3b-a16e-2d92b8a11e16/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 -> 0cc4860b4f5a0d0365cbcd156b11008fe087fa6dc867cdd4b4d117ba6b8a4a03 [2024-11-14 04:11:14,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:11:14,897 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:11:14,900 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:11:14,901 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:11:14,901 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:11:14,903 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d7b656-783c-4b3b-a16e-2d92b8a11e16/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-1.c Unable to find full path for "g++" [2024-11-14 04:11:16,830 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:11:17,425 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:11:17,428 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d7b656-783c-4b3b-a16e-2d92b8a11e16/sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-1.c [2024-11-14 04:11:17,478 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d7b656-783c-4b3b-a16e-2d92b8a11e16/bin/utaipan-verify-sOmjnqqW8E/data/7001e737c/87fa51ca6d5b4c2d89beed4a001e2ec3/FLAG18f6632cc [2024-11-14 04:11:17,509 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d7b656-783c-4b3b-a16e-2d92b8a11e16/bin/utaipan-verify-sOmjnqqW8E/data/7001e737c/87fa51ca6d5b4c2d89beed4a001e2ec3 [2024-11-14 04:11:17,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:11:17,514 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:11:17,517 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:11:17,517 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:11:17,525 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:11:17,526 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:11:17" (1/1) ... [2024-11-14 04:11:17,527 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3924200e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:11:17, skipping insertion in model container [2024-11-14 04:11:17,527 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:11:17" (1/1) ... [2024-11-14 04:11:17,665 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:11:17,928 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_25d7b656-783c-4b3b-a16e-2d92b8a11e16/sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-1.c[2216,2229] [2024-11-14 04:11:18,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:11:18,912 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:11:18,925 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/ctm.bug2.i","-S") [51] [2024-11-14 04:11:18,935 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_25d7b656-783c-4b3b-a16e-2d92b8a11e16/sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-1.c[2216,2229] [2024-11-14 04:11:19,548 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:11:19,718 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:11:19,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:11:19 WrapperNode [2024-11-14 04:11:19,720 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:11:19,721 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:11:19,722 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:11:19,722 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:11:19,730 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:11:19" (1/1) ... [2024-11-14 04:11:19,931 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:11:19" (1/1) ... [2024-11-14 04:11:20,884 INFO L138 Inliner]: procedures = 101, calls = 7875, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 23177 [2024-11-14 04:11:20,884 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:11:20,886 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:11:20,886 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:11:20,886 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:11:20,914 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:11:19" (1/1) ... [2024-11-14 04:11:20,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:11:19" (1/1) ... [2024-11-14 04:11:21,238 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:11:19" (1/1) ... [2024-11-14 04:11:21,244 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:11:19" (1/1) ... [2024-11-14 04:11:21,767 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:11:19" (1/1) ... [2024-11-14 04:11:21,900 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:11:19" (1/1) ... [2024-11-14 04:11:22,005 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:11:19" (1/1) ... [2024-11-14 04:11:22,053 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:11:19" (1/1) ... [2024-11-14 04:11:22,221 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:11:22,223 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:11:22,223 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:11:22,223 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:11:22,224 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:11:19" (1/1) ... [2024-11-14 04:11:22,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:11:22,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d7b656-783c-4b3b-a16e-2d92b8a11e16/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:11:22,263 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d7b656-783c-4b3b-a16e-2d92b8a11e16/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:11:22,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25d7b656-783c-4b3b-a16e-2d92b8a11e16/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:11:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2024-11-14 04:11:22,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2024-11-14 04:11:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2024-11-14 04:11:22,299 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2024-11-14 04:11:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 04:11:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2024-11-14 04:11:22,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2024-11-14 04:11:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2024-11-14 04:11:22,300 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2024-11-14 04:11:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2024-11-14 04:11:22,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2024-11-14 04:11:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2024-11-14 04:11:22,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2024-11-14 04:11:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2024-11-14 04:11:22,301 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2024-11-14 04:11:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2024-11-14 04:11:22,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2024-11-14 04:11:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2024-11-14 04:11:22,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2024-11-14 04:11:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 04:11:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2024-11-14 04:11:22,303 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2024-11-14 04:11:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2024-11-14 04:11:22,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2024-11-14 04:11:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2024-11-14 04:11:22,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2024-11-14 04:11:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2024-11-14 04:11:22,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2024-11-14 04:11:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2024-11-14 04:11:22,304 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2024-11-14 04:11:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2024-11-14 04:11:22,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2024-11-14 04:11:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2024-11-14 04:11:22,304 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2024-11-14 04:11:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:11:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2024-11-14 04:11:22,304 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2024-11-14 04:11:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2024-11-14 04:11:22,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2024-11-14 04:11:22,307 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2024-11-14 04:11:22,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2024-11-14 04:11:22,307 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2024-11-14 04:11:22,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2024-11-14 04:11:22,307 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2024-11-14 04:11:22,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2024-11-14 04:11:22,307 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2024-11-14 04:11:22,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2024-11-14 04:11:22,308 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2024-11-14 04:11:22,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2024-11-14 04:11:22,308 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2024-11-14 04:11:22,308 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2024-11-14 04:11:22,308 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2024-11-14 04:11:22,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2024-11-14 04:11:22,308 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2024-11-14 04:11:22,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2024-11-14 04:11:22,308 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2024-11-14 04:11:22,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2024-11-14 04:11:22,308 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2024-11-14 04:11:22,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2024-11-14 04:11:22,308 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2024-11-14 04:11:22,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2024-11-14 04:11:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2024-11-14 04:11:22,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2024-11-14 04:11:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2024-11-14 04:11:22,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2024-11-14 04:11:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2024-11-14 04:11:22,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2024-11-14 04:11:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2024-11-14 04:11:22,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2024-11-14 04:11:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2024-11-14 04:11:22,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2024-11-14 04:11:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2024-11-14 04:11:22,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2024-11-14 04:11:22,310 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2024-11-14 04:11:22,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2024-11-14 04:11:22,310 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2024-11-14 04:11:22,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2024-11-14 04:11:22,310 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2024-11-14 04:11:22,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2024-11-14 04:11:22,310 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2024-11-14 04:11:22,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2024-11-14 04:11:22,310 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2024-11-14 04:11:22,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2024-11-14 04:11:22,310 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2024-11-14 04:11:22,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2024-11-14 04:11:22,313 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2024-11-14 04:11:22,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2024-11-14 04:11:22,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:11:22,313 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2024-11-14 04:11:22,313 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2024-11-14 04:11:22,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:11:22,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:11:23,885 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:11:23,887 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:13:38,508 INFO L? ?]: Removed 919 outVars from TransFormulas that were not future-live. [2024-11-14 04:13:38,508 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:14:10,890 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:14:10,890 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-14 04:14:10,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:14:10 BoogieIcfgContainer [2024-11-14 04:14:10,891 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:14:10,898 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:14:10,898 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:14:10,919 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:14:10,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:11:17" (1/3) ... [2024-11-14 04:14:10,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b4698ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:14:10, skipping insertion in model container [2024-11-14 04:14:10,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:11:19" (2/3) ... [2024-11-14 04:14:10,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b4698ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:14:10, skipping insertion in model container [2024-11-14 04:14:10,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:14:10" (3/3) ... [2024-11-14 04:14:10,922 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_ctm.2-1.c [2024-11-14 04:14:10,939 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:14:10,941 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG rekcba_ctm.2-1.c that has 44 procedures, 1083 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-14 04:14:11,076 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:14:11,111 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;@656ab941, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:14:11,111 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:14:11,127 INFO L276 IsEmpty]: Start isEmpty. Operand has 1083 states, 698 states have (on average 1.3739255014326648) internal successors, (959), 722 states have internal predecessors, (959), 340 states have call successors, (340), 43 states have call predecessors, (340), 43 states have return successors, (340), 330 states have call predecessors, (340), 340 states have call successors, (340) [2024-11-14 04:14:11,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-14 04:14:11,205 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:14:11,205 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:14:11,210 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:14:11,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:14:11,218 INFO L85 PathProgramCache]: Analyzing trace with hash 531990149, now seen corresponding path program 1 times [2024-11-14 04:14:11,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:14:11,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546914679] [2024-11-14 04:14:11,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:14:11,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms