java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/rekh_aso.1.M4-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 03:38:31,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 03:38:31,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 03:38:31,447 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 03:38:31,448 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 03:38:31,449 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 03:38:31,450 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 03:38:31,452 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 03:38:31,454 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 03:38:31,455 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 03:38:31,455 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 03:38:31,456 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 03:38:31,457 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 03:38:31,458 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 03:38:31,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 03:38:31,460 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 03:38:31,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 03:38:31,462 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 03:38:31,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 03:38:31,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 03:38:31,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 03:38:31,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 03:38:31,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 03:38:31,471 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 03:38:31,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 03:38:31,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 03:38:31,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 03:38:31,475 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 03:38:31,475 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 03:38:31,476 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 03:38:31,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 03:38:31,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 03:38:31,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 03:38:31,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 03:38:31,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 03:38:31,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 03:38:31,484 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 03:38:31,485 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 03:38:31,485 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 03:38:31,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 03:38:31,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 03:38:31,490 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 03:38:31,517 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 03:38:31,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 03:38:31,518 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 03:38:31,518 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 03:38:31,519 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 03:38:31,519 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 03:38:31,520 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 03:38:31,520 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 03:38:31,520 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 03:38:31,520 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 03:38:31,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 03:38:31,523 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 03:38:31,523 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 03:38:31,523 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 03:38:31,524 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 03:38:31,524 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 03:38:31,524 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 03:38:31,524 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 03:38:31,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 03:38:31,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 03:38:31,525 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 03:38:31,525 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 03:38:31,525 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 03:38:31,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 03:38:31,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 03:38:31,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 03:38:31,526 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 03:38:31,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 03:38:31,527 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 03:38:31,527 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 03:38:31,580 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 03:38:31,593 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 03:38:31,598 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 03:38:31,599 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 03:38:31,599 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 03:38:31,600 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekh_aso.1.M4-1.c [2019-10-03 03:38:31,664 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df1add616/bff5fd2a7b18404a9c3f1ca226a495b2/FLAG3ca62b681 [2019-10-03 03:38:32,394 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 03:38:32,395 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekh_aso.1.M4-1.c [2019-10-03 03:38:32,416 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df1add616/bff5fd2a7b18404a9c3f1ca226a495b2/FLAG3ca62b681 [2019-10-03 03:38:32,538 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df1add616/bff5fd2a7b18404a9c3f1ca226a495b2 [2019-10-03 03:38:32,549 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 03:38:32,550 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 03:38:32,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 03:38:32,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 03:38:32,555 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 03:38:32,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 03:38:32" (1/1) ... [2019-10-03 03:38:32,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52b61f0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 03:38:32, skipping insertion in model container [2019-10-03 03:38:32,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 03:38:32" (1/1) ... [2019-10-03 03:38:32,567 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 03:38:32,641 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 03:38:33,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 03:38:33,502 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 03:38:33,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 03:38:33,899 INFO L192 MainTranslator]: Completed translation [2019-10-03 03:38:33,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 03:38:33 WrapperNode [2019-10-03 03:38:33,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 03:38:33,901 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 03:38:33,901 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 03:38:33,902 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 03:38:33,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 03:38:33" (1/1) ... [2019-10-03 03:38:33,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 03:38:33" (1/1) ... [2019-10-03 03:38:34,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 03:38:33" (1/1) ... [2019-10-03 03:38:34,030 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 03:38:33" (1/1) ... [2019-10-03 03:38:34,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 03:38:33" (1/1) ... [2019-10-03 03:38:34,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 03:38:33" (1/1) ... [2019-10-03 03:38:34,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 03:38:33" (1/1) ... [2019-10-03 03:38:34,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 03:38:34,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 03:38:34,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 03:38:34,380 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 03:38:34,382 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 03:38:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 03:38:34,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 03:38:34,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 03:38:34,469 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-10-03 03:38:34,469 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2019-10-03 03:38:34,469 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2019-10-03 03:38:34,469 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2019-10-03 03:38:34,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2019-10-03 03:38:34,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2019-10-03 03:38:34,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2019-10-03 03:38:34,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2019-10-03 03:38:34,470 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2019-10-03 03:38:34,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2019-10-03 03:38:34,471 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2019-10-03 03:38:34,472 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts3 [2019-10-03 03:38:34,472 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2019-10-03 03:38:34,473 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts3 [2019-10-03 03:38:34,473 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-10-03 03:38:34,473 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2019-10-03 03:38:34,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-10-03 03:38:34,474 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2019-10-03 03:38:34,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2019-10-03 03:38:34,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2019-10-03 03:38:34,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2019-10-03 03:38:34,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2019-10-03 03:38:34,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2019-10-03 03:38:34,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i0 [2019-10-03 03:38:34,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2019-10-03 03:38:34,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2019-10-03 03:38:34,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2019-10-03 03:38:34,476 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 03:38:34,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2019-10-03 03:38:34,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2019-10-03 03:38:34,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2019-10-03 03:38:34,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2019-10-03 03:38:34,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2019-10-03 03:38:34,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2019-10-03 03:38:34,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2019-10-03 03:38:34,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2019-10-03 03:38:34,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2019-10-03 03:38:34,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2019-10-03 03:38:34,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2019-10-03 03:38:34,479 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2019-10-03 03:38:34,479 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2019-10-03 03:38:34,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 03:38:34,479 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2019-10-03 03:38:34,479 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i0 [2019-10-03 03:38:34,480 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2019-10-03 03:38:34,480 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2019-10-03 03:38:34,480 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2019-10-03 03:38:34,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-03 03:38:34,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-03 03:38:34,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-10-03 03:38:34,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 03:38:34,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-03 03:38:34,481 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_lock [2019-10-03 03:38:34,481 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_unlock [2019-10-03 03:38:34,481 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-10-03 03:38:34,481 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2019-10-03 03:38:34,481 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2019-10-03 03:38:34,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 03:38:34,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 03:38:34,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 03:38:34,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 03:38:34,482 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-03 03:38:34,482 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2019-10-03 03:38:34,483 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2019-10-03 03:38:34,483 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2019-10-03 03:38:34,483 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2019-10-03 03:38:34,484 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2019-10-03 03:38:34,484 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2019-10-03 03:38:34,484 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2019-10-03 03:38:34,484 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2019-10-03 03:38:34,484 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2019-10-03 03:38:34,485 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2019-10-03 03:38:34,485 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2019-10-03 03:38:34,485 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2019-10-03 03:38:34,485 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2019-10-03 03:38:34,486 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2019-10-03 03:38:34,486 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2019-10-03 03:38:34,486 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2019-10-03 03:38:34,486 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2019-10-03 03:38:34,487 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2019-10-03 03:38:34,487 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2019-10-03 03:38:34,487 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2019-10-03 03:38:34,487 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts3 [2019-10-03 03:38:34,488 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2019-10-03 03:38:34,488 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts3 [2019-10-03 03:38:34,489 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-10-03 03:38:34,489 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2019-10-03 03:38:34,489 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-10-03 03:38:34,489 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2019-10-03 03:38:34,489 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2019-10-03 03:38:34,489 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2019-10-03 03:38:34,490 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2019-10-03 03:38:34,490 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2019-10-03 03:38:34,490 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2019-10-03 03:38:34,490 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 03:38:34,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 03:38:34,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 03:38:34,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 03:38:42,643 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 03:38:42,643 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-03 03:38:42,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 03:38:42 BoogieIcfgContainer [2019-10-03 03:38:42,645 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 03:38:42,646 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 03:38:42,646 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 03:38:42,649 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 03:38:42,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 03:38:32" (1/3) ... [2019-10-03 03:38:42,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c90c3bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 03:38:42, skipping insertion in model container [2019-10-03 03:38:42,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 03:38:33" (2/3) ... [2019-10-03 03:38:42,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c90c3bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 03:38:42, skipping insertion in model container [2019-10-03 03:38:42,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 03:38:42" (3/3) ... [2019-10-03 03:38:42,658 INFO L109 eAbstractionObserver]: Analyzing ICFG rekh_aso.1.M4-1.c [2019-10-03 03:38:42,668 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 03:38:42,677 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 03:38:42,695 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 03:38:42,720 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 03:38:42,720 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 03:38:42,721 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 03:38:42,721 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 03:38:42,721 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 03:38:42,721 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 03:38:42,721 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 03:38:42,721 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 03:38:42,750 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states. [2019-10-03 03:38:42,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-10-03 03:38:42,769 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 03:38:42,771 INFO L411 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 03:38:42,773 INFO L418 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 03:38:42,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 03:38:42,778 INFO L82 PathProgramCache]: Analyzing trace with hash -425733996, now seen corresponding path program 1 times [2019-10-03 03:38:42,781 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 03:38:42,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 03:38:42,844 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 03:38:42,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 03:38:42,844 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 03:38:43,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat