./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.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_e612b85b-ee30-4d1a-9939-179cf31c162d/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e612b85b-ee30-4d1a-9939-179cf31c162d/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_e612b85b-ee30-4d1a-9939-179cf31c162d/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e612b85b-ee30-4d1a-9939-179cf31c162d/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e612b85b-ee30-4d1a-9939-179cf31c162d/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_e612b85b-ee30-4d1a-9939-179cf31c162d/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 c3ec7c03a28dc415c6db5fadbfd8dcd491b1a493cd1bf88ef12d02131cd13437 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:22:22,517 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:22:22,633 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e612b85b-ee30-4d1a-9939-179cf31c162d/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 04:22:22,645 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:22:22,645 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:22:22,673 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:22:22,674 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:22:22,674 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:22:22,675 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:22:22,675 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:22:22,675 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:22:22,675 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:22:22,675 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:22:22,675 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:22:22,676 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:22:22,676 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:22:22,676 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:22:22,676 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:22:22,676 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:22:22,677 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:22:22,677 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:22:22,677 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:22:22,677 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:22:22,678 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:22:22,678 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:22:22,678 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:22:22,678 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:22:22,678 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:22:22,679 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:22:22,679 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:22:22,679 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:22:22,679 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:22:22,679 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:22:22,679 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:22:22,680 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:22:22,680 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:22:22,680 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:22:22,680 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:22:22,680 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:22:22,681 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:22:22,681 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:22:22,681 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:22:22,681 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:22:22,681 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:22:22,682 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:22:22,682 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:22:22,682 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:22:22,682 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_e612b85b-ee30-4d1a-9939-179cf31c162d/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 -> c3ec7c03a28dc415c6db5fadbfd8dcd491b1a493cd1bf88ef12d02131cd13437 [2024-11-14 04:22:23,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:22:23,068 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:22:23,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:22:23,074 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:22:23,075 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:22:23,078 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e612b85b-ee30-4d1a-9939-179cf31c162d/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c Unable to find full path for "g++" [2024-11-14 04:22:25,277 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:22:25,963 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:22:25,965 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e612b85b-ee30-4d1a-9939-179cf31c162d/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c [2024-11-14 04:22:26,010 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e612b85b-ee30-4d1a-9939-179cf31c162d/bin/utaipan-verify-sOmjnqqW8E/data/51f49825b/12ec0eb3eb484b8f92719916e33d0f51/FLAGecc380dbf [2024-11-14 04:22:26,348 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e612b85b-ee30-4d1a-9939-179cf31c162d/bin/utaipan-verify-sOmjnqqW8E/data/51f49825b/12ec0eb3eb484b8f92719916e33d0f51 [2024-11-14 04:22:26,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:22:26,353 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:22:26,355 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:22:26,355 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:22:26,360 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:22:26,361 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:22:26" (1/1) ... [2024-11-14 04:22:26,362 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23f82b3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:26, skipping insertion in model container [2024-11-14 04:22:26,362 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:22:26" (1/1) ... [2024-11-14 04:22:26,459 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:22:26,776 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_e612b85b-ee30-4d1a-9939-179cf31c162d/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c[1868,1881] [2024-11-14 04:22:27,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:22:27,769 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:22:27,781 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/ctm.ok1.i","-S") [42] [2024-11-14 04:22:27,790 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_e612b85b-ee30-4d1a-9939-179cf31c162d/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c[1868,1881] [2024-11-14 04:22:28,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:22:28,292 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:22:28,293 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:28 WrapperNode [2024-11-14 04:22:28,294 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:22:28,295 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:22:28,296 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:22:28,296 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:22:28,305 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:28" (1/1) ... [2024-11-14 04:22:28,401 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:28" (1/1) ... [2024-11-14 04:22:28,734 INFO L138 Inliner]: procedures = 99, calls = 2727, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8497 [2024-11-14 04:22:28,736 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:22:28,737 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:22:28,738 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:22:28,738 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:22:28,748 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:28" (1/1) ... [2024-11-14 04:22:28,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:28" (1/1) ... [2024-11-14 04:22:28,813 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:28" (1/1) ... [2024-11-14 04:22:28,814 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:28" (1/1) ... [2024-11-14 04:22:29,068 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:28" (1/1) ... [2024-11-14 04:22:29,134 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:28" (1/1) ... [2024-11-14 04:22:29,172 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:28" (1/1) ... [2024-11-14 04:22:29,202 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:28" (1/1) ... [2024-11-14 04:22:29,255 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:22:29,258 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:22:29,259 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:22:29,259 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:22:29,260 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:28" (1/1) ... [2024-11-14 04:22:29,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:22:29,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e612b85b-ee30-4d1a-9939-179cf31c162d/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:22:29,311 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e612b85b-ee30-4d1a-9939-179cf31c162d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:22:29,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e612b85b-ee30-4d1a-9939-179cf31c162d/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:22:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2024-11-14 04:22:29,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2024-11-14 04:22:29,351 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2024-11-14 04:22:29,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2024-11-14 04:22:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 04:22:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2024-11-14 04:22:29,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2024-11-14 04:22:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2024-11-14 04:22:29,353 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2024-11-14 04:22:29,353 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2024-11-14 04:22:29,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2024-11-14 04:22:29,353 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2024-11-14 04:22:29,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2024-11-14 04:22:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2024-11-14 04:22:29,354 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2024-11-14 04:22:29,354 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2024-11-14 04:22:29,355 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2024-11-14 04:22:29,355 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2024-11-14 04:22:29,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2024-11-14 04:22:29,355 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2024-11-14 04:22:29,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2024-11-14 04:22:29,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 04:22:29,356 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2024-11-14 04:22:29,357 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2024-11-14 04:22:29,357 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2024-11-14 04:22:29,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2024-11-14 04:22:29,357 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2024-11-14 04:22:29,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2024-11-14 04:22:29,357 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2024-11-14 04:22:29,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2024-11-14 04:22:29,358 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2024-11-14 04:22:29,358 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2024-11-14 04:22:29,361 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2024-11-14 04:22:29,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2024-11-14 04:22:29,361 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2024-11-14 04:22:29,361 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2024-11-14 04:22:29,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:22:29,362 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2024-11-14 04:22:29,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2024-11-14 04:22:29,362 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2024-11-14 04:22:29,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2024-11-14 04:22:29,362 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2024-11-14 04:22:29,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2024-11-14 04:22:29,362 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2024-11-14 04:22:29,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2024-11-14 04:22:29,362 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2024-11-14 04:22:29,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2024-11-14 04:22:29,362 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2024-11-14 04:22:29,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2024-11-14 04:22:29,362 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2024-11-14 04:22:29,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2024-11-14 04:22:29,362 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2024-11-14 04:22:29,362 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2024-11-14 04:22:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2024-11-14 04:22:29,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2024-11-14 04:22:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2024-11-14 04:22:29,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2024-11-14 04:22:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2024-11-14 04:22:29,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2024-11-14 04:22:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2024-11-14 04:22:29,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2024-11-14 04:22:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2024-11-14 04:22:29,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2024-11-14 04:22:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2024-11-14 04:22:29,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2024-11-14 04:22:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2024-11-14 04:22:29,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2024-11-14 04:22:29,363 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2024-11-14 04:22:29,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2024-11-14 04:22:29,364 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2024-11-14 04:22:29,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2024-11-14 04:22:29,364 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2024-11-14 04:22:29,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2024-11-14 04:22:29,364 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2024-11-14 04:22:29,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2024-11-14 04:22:29,364 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2024-11-14 04:22:29,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2024-11-14 04:22:29,368 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2024-11-14 04:22:29,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2024-11-14 04:22:29,368 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2024-11-14 04:22:29,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2024-11-14 04:22:29,368 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2024-11-14 04:22:29,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2024-11-14 04:22:29,369 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2024-11-14 04:22:29,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2024-11-14 04:22:29,369 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2024-11-14 04:22:29,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2024-11-14 04:22:29,369 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2024-11-14 04:22:29,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2024-11-14 04:22:29,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:22:29,369 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2024-11-14 04:22:29,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2024-11-14 04:22:29,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:22:29,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:22:30,379 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:22:30,383 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:22:54,203 INFO L? ?]: Removed 947 outVars from TransFormulas that were not future-live. [2024-11-14 04:22:54,203 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:23:02,595 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:23:02,595 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-14 04:23:02,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:23:02 BoogieIcfgContainer [2024-11-14 04:23:02,596 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:23:02,599 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:23:02,600 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:23:02,606 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:23:02,607 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:22:26" (1/3) ... [2024-11-14 04:23:02,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62641dfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:23:02, skipping insertion in model container [2024-11-14 04:23:02,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:22:28" (2/3) ... [2024-11-14 04:23:02,608 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62641dfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:23:02, skipping insertion in model container [2024-11-14 04:23:02,609 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:23:02" (3/3) ... [2024-11-14 04:23:02,610 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.1.c [2024-11-14 04:23:02,636 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:23:02,642 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG rekh_ctm.1.c that has 45 procedures, 962 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2024-11-14 04:23:02,788 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:23:02,810 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;@556165e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:23:02,810 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:23:02,823 INFO L276 IsEmpty]: Start isEmpty. Operand has 962 states, 611 states have (on average 1.386252045826514) internal successors, (847), 635 states have internal predecessors, (847), 305 states have call successors, (305), 44 states have call predecessors, (305), 44 states have return successors, (305), 295 states have call predecessors, (305), 305 states have call successors, (305) [2024-11-14 04:23:02,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-14 04:23:02,834 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:23:02,835 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] [2024-11-14 04:23:02,836 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:23:02,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:23:02,844 INFO L85 PathProgramCache]: Analyzing trace with hash 1820184142, now seen corresponding path program 1 times [2024-11-14 04:23:02,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:23:02,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519732931] [2024-11-14 04:23:02,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:23:02,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:30:57,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:31:05,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:31:05,999 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:31:06,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519732931] [2024-11-14 04:31:06,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519732931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:31:06,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:31:06,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:31:06,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099054214] [2024-11-14 04:31:06,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:31:06,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 04:31:06,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:31:06,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 04:31:06,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:31:06,030 INFO L87 Difference]: Start difference. First operand has 962 states, 611 states have (on average 1.386252045826514) internal successors, (847), 635 states have internal predecessors, (847), 305 states have call successors, (305), 44 states have call predecessors, (305), 44 states have return successors, (305), 295 states have call predecessors, (305), 305 states have call successors, (305) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 04:31:08,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:31:10,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 04:31:10,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:31:10,851 INFO L93 Difference]: Finished difference Result 1922 states and 2929 transitions. [2024-11-14 04:31:10,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 04:31:10,853 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2024-11-14 04:31:10,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:31:10,879 INFO L225 Difference]: With dead ends: 1922 [2024-11-14 04:31:10,879 INFO L226 Difference]: Without dead ends: 960 [2024-11-14 04:31:10,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:31:10,891 INFO L432 NwaCegarLoop]: 1370 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1370 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:31:10,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1370 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 2 Unknown, 0 Unchecked, 4.7s Time] [2024-11-14 04:31:10,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 960 states. [2024-11-14 04:31:11,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 960. [2024-11-14 04:31:11,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 960 states, 610 states have (on average 1.3786885245901639) internal successors, (841), 634 states have internal predecessors, (841), 305 states have call successors, (305), 44 states have call predecessors, (305), 44 states have return successors, (304), 294 states have call predecessors, (304), 304 states have call successors, (304) [2024-11-14 04:31:11,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 960 states to 960 states and 1450 transitions. [2024-11-14 04:31:11,075 INFO L78 Accepts]: Start accepts. Automaton has 960 states and 1450 transitions. Word has length 23 [2024-11-14 04:31:11,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:31:11,079 INFO L471 AbstractCegarLoop]: Abstraction has 960 states and 1450 transitions. [2024-11-14 04:31:11,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 04:31:11,079 INFO L276 IsEmpty]: Start isEmpty. Operand 960 states and 1450 transitions. [2024-11-14 04:31:11,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-14 04:31:11,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:31:11,090 INFO L215 NwaCegarLoop]: trace histogram [7, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:31:11,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:31:11,090 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:31:11,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:31:11,094 INFO L85 PathProgramCache]: Analyzing trace with hash 738097211, now seen corresponding path program 1 times [2024-11-14 04:31:11,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:31:11,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598924419] [2024-11-14 04:31:11,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:31:11,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms