/usr/bin/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/seq-mthreaded/rekh_aso.2.M4-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 01:10:27,473 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 01:10:27,475 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 01:10:27,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 01:10:27,494 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 01:10:27,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 01:10:27,497 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 01:10:27,509 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 01:10:27,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 01:10:27,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 01:10:27,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 01:10:27,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 01:10:27,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 01:10:27,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 01:10:27,521 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 01:10:27,523 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 01:10:27,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 01:10:27,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 01:10:27,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 01:10:27,529 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 01:10:27,531 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 01:10:27,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 01:10:27,533 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 01:10:27,533 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 01:10:27,535 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 01:10:27,536 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 01:10:27,536 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 01:10:27,537 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 01:10:27,537 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 01:10:27,538 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 01:10:27,538 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 01:10:27,539 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 01:10:27,539 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 01:10:27,540 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 01:10:27,541 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 01:10:27,541 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 01:10:27,542 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 01:10:27,542 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 01:10:27,542 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 01:10:27,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 01:10:27,544 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 01:10:27,544 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 01:10:27,558 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 01:10:27,558 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 01:10:27,559 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 01:10:27,559 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 01:10:27,559 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 01:10:27,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 01:10:27,560 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 01:10:27,560 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 01:10:27,560 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 01:10:27,560 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 01:10:27,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 01:10:27,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 01:10:27,561 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 01:10:27,561 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 01:10:27,561 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 01:10:27,562 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 01:10:27,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 01:10:27,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 01:10:27,562 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 01:10:27,562 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 01:10:27,563 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 01:10:27,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 01:10:27,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 01:10:27,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 01:10:27,563 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 01:10:27,564 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 01:10:27,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 01:10:27,564 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 01:10:27,564 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-07 01:10:27,830 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 01:10:27,846 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 01:10:27,850 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 01:10:27,851 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 01:10:27,851 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 01:10:27,852 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekh_aso.2.M4-1.c [2019-11-07 01:10:27,919 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3feda5977/7ec7ea583077419f8634842d135c5799/FLAG59f1de011 [2019-11-07 01:10:28,605 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 01:10:28,607 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekh_aso.2.M4-1.c [2019-11-07 01:10:28,626 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3feda5977/7ec7ea583077419f8634842d135c5799/FLAG59f1de011 [2019-11-07 01:10:28,757 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3feda5977/7ec7ea583077419f8634842d135c5799 [2019-11-07 01:10:28,764 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 01:10:28,766 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 01:10:28,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 01:10:28,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 01:10:28,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 01:10:28,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:10:28" (1/1) ... [2019-11-07 01:10:28,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5979ca24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:10:28, skipping insertion in model container [2019-11-07 01:10:28,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:10:28" (1/1) ... [2019-11-07 01:10:28,781 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 01:10:28,845 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 01:10:29,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 01:10:29,607 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 01:10:29,990 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 01:10:30,060 INFO L192 MainTranslator]: Completed translation [2019-11-07 01:10:30,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:10:30 WrapperNode [2019-11-07 01:10:30,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 01:10:30,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 01:10:30,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 01:10:30,062 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 01:10:30,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:10:30" (1/1) ... [2019-11-07 01:10:30,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:10:30" (1/1) ... [2019-11-07 01:10:30,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:10:30" (1/1) ... [2019-11-07 01:10:30,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:10:30" (1/1) ... [2019-11-07 01:10:30,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:10:30" (1/1) ... [2019-11-07 01:10:30,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:10:30" (1/1) ... [2019-11-07 01:10:30,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:10:30" (1/1) ... [2019-11-07 01:10:30,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 01:10:30,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 01:10:30,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 01:10:30,458 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 01:10:30,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:10:30" (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 [2019-11-07 01:10:30,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 01:10:30,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 01:10:30,524 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-11-07 01:10:30,524 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2019-11-07 01:10:30,524 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2019-11-07 01:10:30,525 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2019-11-07 01:10:30,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2019-11-07 01:10:30,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2019-11-07 01:10:30,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2019-11-07 01:10:30,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2019-11-07 01:10:30,526 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2019-11-07 01:10:30,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2019-11-07 01:10:30,526 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2019-11-07 01:10:30,527 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts3 [2019-11-07 01:10:30,527 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2019-11-07 01:10:30,528 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts3 [2019-11-07 01:10:30,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-11-07 01:10:30,530 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2019-11-07 01:10:30,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-11-07 01:10:30,530 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2019-11-07 01:10:30,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2019-11-07 01:10:30,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2019-11-07 01:10:30,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2019-11-07 01:10:30,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2019-11-07 01:10:30,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2019-11-07 01:10:30,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i0 [2019-11-07 01:10:30,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i1 [2019-11-07 01:10:30,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2019-11-07 01:10:30,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2019-11-07 01:10:30,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2019-11-07 01:10:30,532 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 01:10:30,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2019-11-07 01:10:30,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2019-11-07 01:10:30,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2019-11-07 01:10:30,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2019-11-07 01:10:30,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2019-11-07 01:10:30,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2019-11-07 01:10:30,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2019-11-07 01:10:30,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2019-11-07 01:10:30,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2019-11-07 01:10:30,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2019-11-07 01:10:30,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2019-11-07 01:10:30,534 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2019-11-07 01:10:30,534 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2019-11-07 01:10:30,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 01:10:30,535 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2019-11-07 01:10:30,535 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i1 [2019-11-07 01:10:30,535 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i0 [2019-11-07 01:10:30,535 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2019-11-07 01:10:30,535 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2019-11-07 01:10:30,535 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2019-11-07 01:10:30,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-11-07 01:10:30,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-11-07 01:10:30,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-11-07 01:10:30,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 01:10:30,536 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-07 01:10:30,536 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_lock [2019-11-07 01:10:30,536 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_unlock [2019-11-07 01:10:30,536 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-11-07 01:10:30,537 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2019-11-07 01:10:30,537 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2019-11-07 01:10:30,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 01:10:30,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 01:10:30,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 01:10:30,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 01:10:30,538 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-11-07 01:10:30,538 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2019-11-07 01:10:30,538 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2019-11-07 01:10:30,538 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2019-11-07 01:10:30,538 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2019-11-07 01:10:30,538 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2019-11-07 01:10:30,539 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2019-11-07 01:10:30,539 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2019-11-07 01:10:30,539 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2019-11-07 01:10:30,540 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2019-11-07 01:10:30,540 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2019-11-07 01:10:30,540 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2019-11-07 01:10:30,540 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2019-11-07 01:10:30,540 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2019-11-07 01:10:30,541 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2019-11-07 01:10:30,541 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2019-11-07 01:10:30,541 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2019-11-07 01:10:30,541 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2019-11-07 01:10:30,541 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2019-11-07 01:10:30,542 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2019-11-07 01:10:30,542 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2019-11-07 01:10:30,542 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts3 [2019-11-07 01:10:30,543 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2019-11-07 01:10:30,543 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts3 [2019-11-07 01:10:30,543 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-11-07 01:10:30,544 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2019-11-07 01:10:30,544 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-11-07 01:10:30,544 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2019-11-07 01:10:30,544 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2019-11-07 01:10:30,544 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2019-11-07 01:10:30,544 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2019-11-07 01:10:30,544 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2019-11-07 01:10:30,545 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2019-11-07 01:10:30,545 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 01:10:30,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 01:10:30,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 01:10:30,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 01:10:38,383 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 01:10:38,383 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 01:10:38,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:10:38 BoogieIcfgContainer [2019-11-07 01:10:38,385 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 01:10:38,386 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 01:10:38,386 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 01:10:38,389 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 01:10:38,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:10:28" (1/3) ... [2019-11-07 01:10:38,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77cf47f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:10:38, skipping insertion in model container [2019-11-07 01:10:38,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:10:30" (2/3) ... [2019-11-07 01:10:38,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77cf47f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:10:38, skipping insertion in model container [2019-11-07 01:10:38,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:10:38" (3/3) ... [2019-11-07 01:10:38,392 INFO L109 eAbstractionObserver]: Analyzing ICFG rekh_aso.2.M4-1.c [2019-11-07 01:10:38,401 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 01:10:38,412 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 01:10:38,422 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 01:10:38,452 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 01:10:38,452 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 01:10:38,452 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 01:10:38,452 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 01:10:38,453 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 01:10:38,453 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 01:10:38,453 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 01:10:38,453 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 01:10:38,485 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states. [2019-11-07 01:10:38,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-11-07 01:10:38,500 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:10:38,501 INFO L410 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] [2019-11-07 01:10:38,503 INFO L410 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:10:38,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:10:38,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1098623171, now seen corresponding path program 1 times [2019-11-07 01:10:38,518 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:10:38,518 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997573791] [2019-11-07 01:10:38,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:10:39,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat