./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29171686-916f-4976-98c8-094731b51fe1/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29171686-916f-4976-98c8-094731b51fe1/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29171686-916f-4976-98c8-094731b51fe1/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29171686-916f-4976-98c8-094731b51fe1/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29171686-916f-4976-98c8-094731b51fe1/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29171686-916f-4976-98c8-094731b51fe1/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2db6eb55010ab7d3a1a946055e6deb2837efdfd8388654051519bf5d1a66e523 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:52:33,632 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:52:33,776 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29171686-916f-4976-98c8-094731b51fe1/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:52:33,788 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:52:33,788 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:52:33,823 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:52:33,824 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:52:33,825 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:52:33,826 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:52:33,827 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:52:33,828 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:52:33,829 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:52:33,830 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:52:33,831 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:52:33,831 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:52:33,832 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:52:33,833 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:52:33,834 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:52:33,835 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:52:33,836 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:52:33,837 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:52:33,838 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:52:33,839 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:52:33,840 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:52:33,841 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:52:33,842 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:52:33,842 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:52:33,843 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:52:33,844 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:52:33,844 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:52:33,845 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:52:33,846 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:52:33,846 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:52:33,847 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:52:33,847 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:52:33,848 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:52:33,848 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:52:33,849 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:52:33,849 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:52:33,850 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:52:33,850 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:52:33,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:52:33,851 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:52:33,852 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:52:33,852 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:52:33,853 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29171686-916f-4976-98c8-094731b51fe1/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29171686-916f-4976-98c8-094731b51fe1/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2db6eb55010ab7d3a1a946055e6deb2837efdfd8388654051519bf5d1a66e523 [2023-11-19 04:52:34,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:52:34,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:52:34,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:52:34,227 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:52:34,228 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:52:34,230 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29171686-916f-4976-98c8-094731b51fe1/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-1.c [2023-11-19 04:52:37,757 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:52:38,206 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:52:38,206 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29171686-916f-4976-98c8-094731b51fe1/sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-1.c [2023-11-19 04:52:38,255 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29171686-916f-4976-98c8-094731b51fe1/bin/utaipan-verify-t7M7D8N6sZ/data/9132c0cb8/7842daed42d74a328af7e6bf0dc4ef17/FLAG75f8d97db [2023-11-19 04:52:38,269 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29171686-916f-4976-98c8-094731b51fe1/bin/utaipan-verify-t7M7D8N6sZ/data/9132c0cb8/7842daed42d74a328af7e6bf0dc4ef17 [2023-11-19 04:52:38,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:52:38,273 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:52:38,274 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:52:38,274 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:52:38,280 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:52:38,282 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:52:38" (1/1) ... [2023-11-19 04:52:38,283 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69df49cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:38, skipping insertion in model container [2023-11-19 04:52:38,283 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:52:38" (1/1) ... [2023-11-19 04:52:38,376 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:52:38,547 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29171686-916f-4976-98c8-094731b51fe1/sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-1.c[1800,1813] [2023-11-19 04:52:39,085 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:52:39,108 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:52:39,118 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/aso.ok1.i","-S") [43] [2023-11-19 04:52:39,127 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29171686-916f-4976-98c8-094731b51fe1/sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-1.c[1800,1813] [2023-11-19 04:52:39,477 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:52:39,506 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:52:39,507 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:39 WrapperNode [2023-11-19 04:52:39,507 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:52:39,508 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:52:39,509 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:52:39,510 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:52:39,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:39" (1/1) ... [2023-11-19 04:52:39,593 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:39" (1/1) ... [2023-11-19 04:52:39,942 INFO L138 Inliner]: procedures = 60, calls = 3129, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 6150 [2023-11-19 04:52:39,943 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:52:39,944 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:52:39,944 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:52:39,944 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:52:39,956 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:39" (1/1) ... [2023-11-19 04:52:39,956 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:39" (1/1) ... [2023-11-19 04:52:40,012 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:39" (1/1) ... [2023-11-19 04:52:40,012 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:39" (1/1) ... [2023-11-19 04:52:40,184 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:39" (1/1) ... [2023-11-19 04:52:40,304 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:39" (1/1) ... [2023-11-19 04:52:40,328 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:39" (1/1) ... [2023-11-19 04:52:40,347 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:39" (1/1) ... [2023-11-19 04:52:40,380 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:52:40,381 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:52:40,381 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:52:40,381 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:52:40,382 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:39" (1/1) ... [2023-11-19 04:52:40,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:52:40,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29171686-916f-4976-98c8-094731b51fe1/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:52:40,419 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29171686-916f-4976-98c8-094731b51fe1/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:52:40,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29171686-916f-4976-98c8-094731b51fe1/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:52:40,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:52:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2023-11-19 04:52:40,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2023-11-19 04:52:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-11-19 04:52:40,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-11-19 04:52:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-11-19 04:52:40,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-11-19 04:52:40,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:52:40,478 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-11-19 04:52:40,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-11-19 04:52:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-11-19 04:52:40,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-11-19 04:52:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-11-19 04:52:40,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-11-19 04:52:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:52:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-11-19 04:52:40,480 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-11-19 04:52:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-11-19 04:52:40,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-11-19 04:52:40,481 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2023-11-19 04:52:40,481 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2023-11-19 04:52:40,482 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-11-19 04:52:40,482 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-11-19 04:52:40,483 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-11-19 04:52:40,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-11-19 04:52:40,484 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2023-11-19 04:52:40,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2023-11-19 04:52:40,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:52:40,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:52:40,485 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-11-19 04:52:40,486 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-11-19 04:52:40,486 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-11-19 04:52:40,486 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-11-19 04:52:40,486 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2023-11-19 04:52:40,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2023-11-19 04:52:40,487 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2023-11-19 04:52:40,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2023-11-19 04:52:40,487 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:52:40,487 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:52:40,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:52:40,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:52:40,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:52:40,488 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-11-19 04:52:40,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-11-19 04:52:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-11-19 04:52:40,489 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-11-19 04:52:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-11-19 04:52:40,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-11-19 04:52:40,489 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2023-11-19 04:52:40,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2023-11-19 04:52:41,031 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:52:41,034 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:52:54,369 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:52:54,807 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:52:54,808 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:52:54,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:52:54 BoogieIcfgContainer [2023-11-19 04:52:54,822 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:52:54,824 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:52:54,824 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:52:54,827 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:52:54,827 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:52:38" (1/3) ... [2023-11-19 04:52:54,828 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5308c468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:52:54, skipping insertion in model container [2023-11-19 04:52:54,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:52:39" (2/3) ... [2023-11-19 04:52:54,829 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5308c468 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:52:54, skipping insertion in model container [2023-11-19 04:52:54,829 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:52:54" (3/3) ... [2023-11-19 04:52:54,830 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_aso.1.M1-1.c [2023-11-19 04:52:54,848 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:52:54,849 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:52:54,943 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:52:54,950 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5c9ab665, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:52:54,950 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:52:54,963 INFO L276 IsEmpty]: Start isEmpty. Operand has 2291 states, 1330 states have (on average 1.199248120300752) internal successors, (1595), 1334 states have internal predecessors, (1595), 938 states have call successors, (938), 21 states have call predecessors, (938), 21 states have return successors, (938), 936 states have call predecessors, (938), 938 states have call successors, (938) [2023-11-19 04:52:55,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 911 [2023-11-19 04:52:55,040 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:52:55,041 INFO L195 NwaCegarLoop]: trace histogram [209, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:52:55,042 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:52:55,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:52:55,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1898604167, now seen corresponding path program 1 times [2023-11-19 04:52:55,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:52:55,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219631567] [2023-11-19 04:52:55,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:52:55,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms