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_nxt.3.M4.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:27:08,640 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:27:08,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:27:08,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:27:08,657 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:27:08,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:27:08,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:27:08,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:27:08,671 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:27:08,672 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:27:08,673 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:27:08,674 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:27:08,675 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:27:08,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:27:08,680 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:27:08,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:27:08,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:27:08,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:27:08,687 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:27:08,692 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:27:08,697 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:27:08,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:27:08,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:27:08,699 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:27:08,701 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:27:08,701 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:27:08,701 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:27:08,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:27:08,702 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:27:08,703 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:27:08,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:27:08,704 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:27:08,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:27:08,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:27:08,706 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:27:08,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:27:08,707 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:27:08,707 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:27:08,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:27:08,708 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:27:08,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:27:08,710 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 [2019-10-15 01:27:08,737 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:27:08,737 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:27:08,738 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:27:08,739 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:27:08,739 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:27:08,739 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:27:08,739 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:27:08,739 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:27:08,740 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:27:08,740 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:27:08,740 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:27:08,740 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:27:08,740 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:27:08,741 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:27:08,741 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:27:08,741 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:27:08,742 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:27:08,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:27:08,742 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:27:08,742 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:27:08,743 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:27:08,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:27:08,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:27:08,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:27:08,743 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:27:08,744 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:27:08,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:27:08,744 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:27:08,744 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 [2019-10-15 01:27:09,010 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:27:09,028 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:27:09,031 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:27:09,032 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:27:09,033 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:27:09,033 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekh_nxt.3.M4.c [2019-10-15 01:27:09,104 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24bd9f0d7/efbde2368f9d46cf83ba26131ef562de/FLAG1cdbc3adb [2019-10-15 01:27:09,727 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:27:09,727 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekh_nxt.3.M4.c [2019-10-15 01:27:09,748 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24bd9f0d7/efbde2368f9d46cf83ba26131ef562de/FLAG1cdbc3adb [2019-10-15 01:27:09,928 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24bd9f0d7/efbde2368f9d46cf83ba26131ef562de [2019-10-15 01:27:09,937 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:27:09,939 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:27:09,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:27:09,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:27:09,943 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:27:09,944 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:27:09" (1/1) ... [2019-10-15 01:27:09,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ef0aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:27:09, skipping insertion in model container [2019-10-15 01:27:09,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:27:09" (1/1) ... [2019-10-15 01:27:09,954 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:27:10,026 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:27:10,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:27:10,821 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:27:11,090 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:27:11,140 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:27:11,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:27:11 WrapperNode [2019-10-15 01:27:11,141 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:27:11,142 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:27:11,142 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:27:11,142 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:27:11,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:27:11" (1/1) ... [2019-10-15 01:27:11,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:27:11" (1/1) ... [2019-10-15 01:27:11,240 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:27:11" (1/1) ... [2019-10-15 01:27:11,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:27:11" (1/1) ... [2019-10-15 01:27:11,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:27:11" (1/1) ... [2019-10-15 01:27:11,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:27:11" (1/1) ... [2019-10-15 01:27:11,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:27:11" (1/1) ... [2019-10-15 01:27:11,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:27:11,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:27:11,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:27:11,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:27:11,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:27:11" (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 [2019-10-15 01:27:11,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:27:11,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:27:11,609 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-10-15 01:27:11,609 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2019-10-15 01:27:11,609 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2019-10-15 01:27:11,609 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2019-10-15 01:27:11,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2019-10-15 01:27:11,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2019-10-15 01:27:11,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2019-10-15 01:27:11,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2019-10-15 01:27:11,612 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2019-10-15 01:27:11,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2019-10-15 01:27:11,612 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2019-10-15 01:27:11,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-10-15 01:27:11,613 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2019-10-15 01:27:11,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-10-15 01:27:11,614 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2019-10-15 01:27:11,614 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2019-10-15 01:27:11,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2019-10-15 01:27:11,615 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2019-10-15 01:27:11,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2019-10-15 01:27:11,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2019-10-15 01:27:11,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2019-10-15 01:27:11,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2019-10-15 01:27:11,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2019-10-15 01:27:11,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i0 [2019-10-15 01:27:11,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2019-10-15 01:27:11,617 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2019-10-15 01:27:11,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2019-10-15 01:27:11,618 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:27:11,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2019-10-15 01:27:11,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2019-10-15 01:27:11,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_observer_obstacle_flag [2019-10-15 01:27:11,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2019-10-15 01:27:11,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2019-10-15 01:27:11,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_observer_obstacle_flag [2019-10-15 01:27:11,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2019-10-15 01:27:11,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2019-10-15 01:27:11,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2019-10-15 01:27:11,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2019-10-15 01:27:11,620 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2019-10-15 01:27:11,620 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2019-10-15 01:27:11,620 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2019-10-15 01:27:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:27:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2019-10-15 01:27:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i0 [2019-10-15 01:27:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2019-10-15 01:27:11,621 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2019-10-15 01:27:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2019-10-15 01:27:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-15 01:27:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-10-15 01:27:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:27:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 01:27:11,622 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_lock [2019-10-15 01:27:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_unlock [2019-10-15 01:27:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-10-15 01:27:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2019-10-15 01:27:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2019-10-15 01:27:11,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:27:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:27:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:27:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:27:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-15 01:27:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-15 01:27:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2019-10-15 01:27:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2019-10-15 01:27:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2019-10-15 01:27:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2019-10-15 01:27:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_observer_obstacle_flag [2019-10-15 01:27:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_observer_obstacle_flag [2019-10-15 01:27:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2019-10-15 01:27:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2019-10-15 01:27:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2019-10-15 01:27:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2019-10-15 01:27:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2019-10-15 01:27:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2019-10-15 01:27:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2019-10-15 01:27:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2019-10-15 01:27:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2019-10-15 01:27:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2019-10-15 01:27:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2019-10-15 01:27:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2019-10-15 01:27:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2019-10-15 01:27:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-10-15 01:27:11,631 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2019-10-15 01:27:11,631 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-10-15 01:27:11,631 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2019-10-15 01:27:11,632 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2019-10-15 01:27:11,632 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2019-10-15 01:27:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2019-10-15 01:27:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2019-10-15 01:27:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2019-10-15 01:27:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2019-10-15 01:27:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2019-10-15 01:27:11,633 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2019-10-15 01:27:11,634 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2019-10-15 01:27:11,634 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:27:11,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:27:11,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:27:11,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:27:19,109 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:27:19,110 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 01:27:19,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:27:19 BoogieIcfgContainer [2019-10-15 01:27:19,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:27:19,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:27:19,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:27:19,118 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:27:19,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:27:09" (1/3) ... [2019-10-15 01:27:19,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a99bace and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:27:19, skipping insertion in model container [2019-10-15 01:27:19,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:27:11" (2/3) ... [2019-10-15 01:27:19,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a99bace and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:27:19, skipping insertion in model container [2019-10-15 01:27:19,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:27:19" (3/3) ... [2019-10-15 01:27:19,122 INFO L109 eAbstractionObserver]: Analyzing ICFG rekh_nxt.3.M4.c [2019-10-15 01:27:19,136 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:27:19,147 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:27:19,163 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:27:19,200 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:27:19,200 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:27:19,201 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:27:19,201 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:27:19,201 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:27:19,201 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:27:19,201 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:27:19,201 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:27:19,240 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states. [2019-10-15 01:27:19,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-15 01:27:19,255 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:27:19,256 INFO L380 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] [2019-10-15 01:27:19,259 INFO L410 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:27:19,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:27:19,268 INFO L82 PathProgramCache]: Analyzing trace with hash 311834023, now seen corresponding path program 1 times [2019-10-15 01:27:19,282 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:27:19,283 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970048848] [2019-10-15 01:27:19,283 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:27:19,284 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:27:19,284 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:27:19,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat