/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_nxt.1.M4-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 01:11:54,908 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 01:11:54,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 01:11:54,923 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 01:11:54,923 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 01:11:54,924 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 01:11:54,925 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 01:11:54,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 01:11:54,928 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 01:11:54,929 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 01:11:54,930 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 01:11:54,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 01:11:54,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 01:11:54,937 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 01:11:54,938 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 01:11:54,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 01:11:54,940 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 01:11:54,943 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 01:11:54,945 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 01:11:54,949 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 01:11:54,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 01:11:54,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 01:11:54,954 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 01:11:54,955 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 01:11:54,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 01:11:54,960 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 01:11:54,960 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 01:11:54,962 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 01:11:54,962 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 01:11:54,964 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 01:11:54,965 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 01:11:54,965 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 01:11:54,966 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 01:11:54,968 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 01:11:54,971 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 01:11:54,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 01:11:54,972 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 01:11:54,972 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 01:11:54,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 01:11:54,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 01:11:54,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 01:11:54,976 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 01:11:54,995 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 01:11:54,995 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 01:11:54,996 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 01:11:54,997 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 01:11:54,997 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 01:11:54,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 01:11:54,997 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 01:11:54,998 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 01:11:54,998 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 01:11:54,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 01:11:54,999 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 01:11:54,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 01:11:54,999 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 01:11:55,000 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 01:11:55,000 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 01:11:55,000 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 01:11:55,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 01:11:55,001 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 01:11:55,001 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 01:11:55,001 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 01:11:55,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 01:11:55,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 01:11:55,002 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 01:11:55,002 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 01:11:55,002 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 01:11:55,002 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 01:11:55,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 01:11:55,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 01:11:55,003 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 01:11:55,288 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 01:11:55,300 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 01:11:55,304 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 01:11:55,305 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 01:11:55,305 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 01:11:55,306 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekh_nxt.1.M4-1.c [2019-11-07 01:11:55,363 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb46f7bb9/31a49db8d7a24197aadc8999a8e9f33b/FLAG2e49e1e2a [2019-11-07 01:11:55,925 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 01:11:55,926 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekh_nxt.1.M4-1.c [2019-11-07 01:11:55,941 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb46f7bb9/31a49db8d7a24197aadc8999a8e9f33b/FLAG2e49e1e2a [2019-11-07 01:11:56,194 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb46f7bb9/31a49db8d7a24197aadc8999a8e9f33b [2019-11-07 01:11:56,221 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 01:11:56,223 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 01:11:56,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 01:11:56,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 01:11:56,240 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 01:11:56,241 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:11:56" (1/1) ... [2019-11-07 01:11:56,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32ed9561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:56, skipping insertion in model container [2019-11-07 01:11:56,248 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:11:56" (1/1) ... [2019-11-07 01:11:56,256 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 01:11:56,314 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 01:11:57,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 01:11:57,039 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 01:11:57,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 01:11:57,319 INFO L192 MainTranslator]: Completed translation [2019-11-07 01:11:57,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:57 WrapperNode [2019-11-07 01:11:57,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 01:11:57,321 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 01:11:57,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 01:11:57,321 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 01:11:57,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:57" (1/1) ... [2019-11-07 01:11:57,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:57" (1/1) ... [2019-11-07 01:11:57,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:57" (1/1) ... [2019-11-07 01:11:57,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:57" (1/1) ... [2019-11-07 01:11:57,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:57" (1/1) ... [2019-11-07 01:11:57,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:57" (1/1) ... [2019-11-07 01:11:57,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:57" (1/1) ... [2019-11-07 01:11:57,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 01:11:57,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 01:11:57,597 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 01:11:57,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 01:11:57,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:57" (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 01:11:57,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 01:11:57,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 01:11:57,679 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-11-07 01:11:57,679 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2019-11-07 01:11:57,679 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2019-11-07 01:11:57,680 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2019-11-07 01:11:57,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2019-11-07 01:11:57,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2019-11-07 01:11:57,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2019-11-07 01:11:57,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2019-11-07 01:11:57,681 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2019-11-07 01:11:57,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2019-11-07 01:11:57,682 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2019-11-07 01:11:57,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2019-11-07 01:11:57,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-11-07 01:11:57,683 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2019-11-07 01:11:57,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-11-07 01:11:57,684 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2019-11-07 01:11:57,685 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2019-11-07 01:11:57,685 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2019-11-07 01:11:57,685 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2019-11-07 01:11:57,685 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2019-11-07 01:11:57,686 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2019-11-07 01:11:57,686 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2019-11-07 01:11:57,686 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2019-11-07 01:11:57,686 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2019-11-07 01:11:57,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2019-11-07 01:11:57,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2019-11-07 01:11:57,687 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 01:11:57,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2019-11-07 01:11:57,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2019-11-07 01:11:57,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2019-11-07 01:11:57,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2019-11-07 01:11:57,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2019-11-07 01:11:57,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2019-11-07 01:11:57,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2019-11-07 01:11:57,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2019-11-07 01:11:57,689 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2019-11-07 01:11:57,689 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2019-11-07 01:11:57,689 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2019-11-07 01:11:57,690 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 01:11:57,690 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2019-11-07 01:11:57,690 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2019-11-07 01:11:57,690 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2019-11-07 01:11:57,690 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2019-11-07 01:11:57,690 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-11-07 01:11:57,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-11-07 01:11:57,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 01:11:57,691 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-07 01:11:57,692 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-11-07 01:11:57,692 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2019-11-07 01:11:57,692 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2019-11-07 01:11:57,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 01:11:57,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 01:11:57,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 01:11:57,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 01:11:57,693 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-11-07 01:11:57,693 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-11-07 01:11:57,693 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2019-11-07 01:11:57,694 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2019-11-07 01:11:57,694 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2019-11-07 01:11:57,694 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2019-11-07 01:11:57,694 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2019-11-07 01:11:57,695 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2019-11-07 01:11:57,695 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2019-11-07 01:11:57,695 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2019-11-07 01:11:57,695 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2019-11-07 01:11:57,695 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2019-11-07 01:11:57,695 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2019-11-07 01:11:57,696 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2019-11-07 01:11:57,696 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2019-11-07 01:11:57,696 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2019-11-07 01:11:57,696 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2019-11-07 01:11:57,697 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2019-11-07 01:11:57,697 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2019-11-07 01:11:57,697 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2019-11-07 01:11:57,698 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-11-07 01:11:57,698 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2019-11-07 01:11:57,698 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-11-07 01:11:57,699 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2019-11-07 01:11:57,699 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2019-11-07 01:11:57,699 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2019-11-07 01:11:57,699 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2019-11-07 01:11:57,699 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2019-11-07 01:11:57,700 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2019-11-07 01:11:57,700 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2019-11-07 01:11:57,701 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2019-11-07 01:11:57,701 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2019-11-07 01:11:57,701 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 01:11:57,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 01:11:57,702 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 01:11:57,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 01:12:04,850 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 01:12:04,850 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 01:12:04,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:12:04 BoogieIcfgContainer [2019-11-07 01:12:04,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 01:12:04,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 01:12:04,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 01:12:04,857 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 01:12:04,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:11:56" (1/3) ... [2019-11-07 01:12:04,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c6fa223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:12:04, skipping insertion in model container [2019-11-07 01:12:04,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:11:57" (2/3) ... [2019-11-07 01:12:04,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c6fa223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:12:04, skipping insertion in model container [2019-11-07 01:12:04,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:12:04" (3/3) ... [2019-11-07 01:12:04,861 INFO L109 eAbstractionObserver]: Analyzing ICFG rekh_nxt.1.M4-1.c [2019-11-07 01:12:04,873 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 01:12:04,883 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 01:12:04,898 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 01:12:04,933 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 01:12:04,933 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 01:12:04,934 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 01:12:04,934 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 01:12:04,934 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 01:12:04,934 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 01:12:04,935 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 01:12:04,935 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 01:12:04,968 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states. [2019-11-07 01:12:05,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2943 [2019-11-07 01:12:05,251 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:12:05,253 INFO L410 BasicCegarLoop]: trace histogram [108, 108, 108, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 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 01:12:05,256 INFO L410 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:12:05,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:12:05,263 INFO L82 PathProgramCache]: Analyzing trace with hash 139427707, now seen corresponding path program 1 times [2019-11-07 01:12:05,271 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 01:12:05,271 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843407531] [2019-11-07 01:12:05,272 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:12:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat