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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/seq-mthreaded/rekh_nxt.1.M1-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:29:37,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:29:37,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:29:37,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:29:37,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:29:37,542 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:29:37,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:29:37,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:29:37,547 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:29:37,548 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:29:37,549 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:29:37,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:29:37,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:29:37,551 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:29:37,552 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:29:37,553 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:29:37,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:29:37,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:29:37,557 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:29:37,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:29:37,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:29:37,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:29:37,563 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:29:37,564 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:29:37,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:29:37,570 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:29:37,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:29:37,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:29:37,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:29:37,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:29:37,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:29:37,579 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:29:37,580 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:29:37,581 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:29:37,582 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:29:37,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:29:37,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:29:37,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:29:37,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:29:37,587 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:29:37,588 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:29:37,591 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 03:29:37,614 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:29:37,615 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:29:37,617 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:29:37,617 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:29:37,617 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:29:37,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:29:37,618 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:29:37,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:29:37,618 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:29:37,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:29:37,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:29:37,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:29:37,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:29:37,621 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:29:37,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:29:37,621 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:29:37,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:29:37,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:29:37,622 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:29:37,622 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:29:37,622 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:29:37,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:29:37,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:29:37,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:29:37,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:29:37,623 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:29:37,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:29:37,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:29:37,624 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:29:37,890 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:29:37,908 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:29:37,911 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:29:37,913 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:29:37,913 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:29:37,914 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekh_nxt.1.M1-1.c [2019-10-15 03:29:37,989 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31be3a124/d9fbe58ff70a4de78d161451e6e1d5c8/FLAG55b7dc185 [2019-10-15 03:29:38,691 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:29:38,693 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekh_nxt.1.M1-1.c [2019-10-15 03:29:38,716 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31be3a124/d9fbe58ff70a4de78d161451e6e1d5c8/FLAG55b7dc185 [2019-10-15 03:29:38,856 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31be3a124/d9fbe58ff70a4de78d161451e6e1d5c8 [2019-10-15 03:29:38,865 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:29:38,866 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:29:38,867 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:29:38,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:29:38,874 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:29:38,875 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:29:38" (1/1) ... [2019-10-15 03:29:38,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b91cb92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:38, skipping insertion in model container [2019-10-15 03:29:38,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:29:38" (1/1) ... [2019-10-15 03:29:38,891 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:29:38,964 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:29:39,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:29:39,751 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:29:39,987 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:29:40,026 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:29:40,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:40 WrapperNode [2019-10-15 03:29:40,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:29:40,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:29:40,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:29:40,028 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:29:40,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:40" (1/1) ... [2019-10-15 03:29:40,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:40" (1/1) ... [2019-10-15 03:29:40,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:40" (1/1) ... [2019-10-15 03:29:40,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:40" (1/1) ... [2019-10-15 03:29:40,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:40" (1/1) ... [2019-10-15 03:29:40,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:40" (1/1) ... [2019-10-15 03:29:40,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:40" (1/1) ... [2019-10-15 03:29:40,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:29:40,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:29:40,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:29:40,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:29:40,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:40" (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 03:29:40,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:29:40,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:29:40,404 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-10-15 03:29:40,404 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2019-10-15 03:29:40,404 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2019-10-15 03:29:40,406 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2019-10-15 03:29:40,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2019-10-15 03:29:40,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2019-10-15 03:29:40,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2019-10-15 03:29:40,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2019-10-15 03:29:40,407 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2019-10-15 03:29:40,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2019-10-15 03:29:40,409 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2019-10-15 03:29:40,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2019-10-15 03:29:40,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-10-15 03:29:40,409 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2019-10-15 03:29:40,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-10-15 03:29:40,412 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2019-10-15 03:29:40,413 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2019-10-15 03:29:40,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2019-10-15 03:29:40,413 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2019-10-15 03:29:40,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2019-10-15 03:29:40,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2019-10-15 03:29:40,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2019-10-15 03:29:40,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2019-10-15 03:29:40,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2019-10-15 03:29:40,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2019-10-15 03:29:40,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2019-10-15 03:29:40,415 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:29:40,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2019-10-15 03:29:40,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2019-10-15 03:29:40,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2019-10-15 03:29:40,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2019-10-15 03:29:40,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2019-10-15 03:29:40,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2019-10-15 03:29:40,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2019-10-15 03:29:40,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2019-10-15 03:29:40,417 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2019-10-15 03:29:40,417 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2019-10-15 03:29:40,418 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2019-10-15 03:29:40,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:29:40,418 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2019-10-15 03:29:40,418 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2019-10-15 03:29:40,418 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2019-10-15 03:29:40,419 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2019-10-15 03:29:40,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-15 03:29:40,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-10-15 03:29:40,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:29:40,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 03:29:40,420 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-10-15 03:29:40,420 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2019-10-15 03:29:40,420 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2019-10-15 03:29:40,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:29:40,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:29:40,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:29:40,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:29:40,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-15 03:29:40,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-15 03:29:40,421 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2019-10-15 03:29:40,422 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2019-10-15 03:29:40,422 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2019-10-15 03:29:40,423 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2019-10-15 03:29:40,423 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2019-10-15 03:29:40,423 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2019-10-15 03:29:40,423 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2019-10-15 03:29:40,423 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2019-10-15 03:29:40,424 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2019-10-15 03:29:40,424 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2019-10-15 03:29:40,424 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2019-10-15 03:29:40,424 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2019-10-15 03:29:40,425 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2019-10-15 03:29:40,425 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2019-10-15 03:29:40,425 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2019-10-15 03:29:40,426 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2019-10-15 03:29:40,426 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2019-10-15 03:29:40,426 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2019-10-15 03:29:40,427 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-10-15 03:29:40,427 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2019-10-15 03:29:40,427 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-10-15 03:29:40,428 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2019-10-15 03:29:40,428 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2019-10-15 03:29:40,428 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2019-10-15 03:29:40,429 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2019-10-15 03:29:40,429 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2019-10-15 03:29:40,429 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2019-10-15 03:29:40,429 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2019-10-15 03:29:40,429 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2019-10-15 03:29:40,430 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2019-10-15 03:29:40,430 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:29:40,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:29:40,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:29:40,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:30:15,684 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:30:15,685 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 03:30:15,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:30:15 BoogieIcfgContainer [2019-10-15 03:30:15,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:30:15,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:30:15,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:30:15,854 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:30:15,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:29:38" (1/3) ... [2019-10-15 03:30:15,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c090c4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:30:15, skipping insertion in model container [2019-10-15 03:30:15,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:29:40" (2/3) ... [2019-10-15 03:30:15,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c090c4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:30:15, skipping insertion in model container [2019-10-15 03:30:15,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:30:15" (3/3) ... [2019-10-15 03:30:15,862 INFO L109 eAbstractionObserver]: Analyzing ICFG rekh_nxt.1.M1-1.c [2019-10-15 03:30:15,877 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:30:15,896 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:30:15,915 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:30:15,978 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:30:15,978 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:30:15,979 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:30:15,979 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:30:15,979 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:30:15,979 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:30:15,980 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:30:15,980 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:30:16,025 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states. [2019-10-15 03:30:16,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 583 [2019-10-15 03:30:16,102 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:30:16,105 INFO L380 BasicCegarLoop]: trace histogram [27, 27, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:30:16,109 INFO L410 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:30:16,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:30:16,119 INFO L82 PathProgramCache]: Analyzing trace with hash 2116585798, now seen corresponding path program 1 times [2019-10-15 03:30:16,134 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:30:16,135 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539794052] [2019-10-15 03:30:16,136 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:16,137 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:30:16,138 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:30:16,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat