java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/seq-mthreaded/rekh_aso.1.M4-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:25:44,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:25:44,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:25:44,896 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:25:44,897 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:25:44,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:25:44,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:25:44,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:25:44,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:25:44,904 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:25:44,905 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:25:44,906 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:25:44,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:25:44,907 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:25:44,908 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:25:44,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:25:44,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:25:44,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:25:44,912 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:25:44,914 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:25:44,916 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:25:44,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:25:44,918 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:25:44,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:25:44,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:25:44,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:25:44,921 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:25:44,922 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:25:44,923 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:25:44,924 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:25:44,924 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:25:44,925 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:25:44,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:25:44,926 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:25:44,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:25:44,927 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:25:44,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:25:44,928 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:25:44,928 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:25:44,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:25:44,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:25:44,934 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 01:25:44,955 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:25:44,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:25:44,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:25:44,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:25:44,958 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:25:44,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:25:44,959 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:25:44,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:25:44,959 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:25:44,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:25:44,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:25:44,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:25:44,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:25:44,961 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:25:44,961 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:25:44,961 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:25:44,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:25:44,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:25:44,962 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:25:44,962 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:25:44,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:25:44,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:25:44,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:25:44,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:25:44,963 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:25:44,964 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:25:44,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:25:44,964 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:25:44,964 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 01:25:45,268 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:25:45,281 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:25:45,284 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:25:45,286 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:25:45,286 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:25:45,290 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekh_aso.1.M4-1.c [2019-10-15 01:25:45,366 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e92f821d4/a1f49816b163445bbe55e5429399cb3c/FLAGd6bae0481 [2019-10-15 01:25:46,032 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:25:46,033 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekh_aso.1.M4-1.c [2019-10-15 01:25:46,055 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e92f821d4/a1f49816b163445bbe55e5429399cb3c/FLAGd6bae0481 [2019-10-15 01:25:46,213 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e92f821d4/a1f49816b163445bbe55e5429399cb3c [2019-10-15 01:25:46,223 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:25:46,225 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:25:46,226 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:25:46,226 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:25:46,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:25:46,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:25:46" (1/1) ... [2019-10-15 01:25:46,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13c5ffca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:46, skipping insertion in model container [2019-10-15 01:25:46,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:25:46" (1/1) ... [2019-10-15 01:25:46,245 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:25:46,326 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:25:47,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:25:47,201 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:25:47,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:25:47,670 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:25:47,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:47 WrapperNode [2019-10-15 01:25:47,672 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:25:47,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:25:47,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:25:47,673 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:25:47,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:47" (1/1) ... [2019-10-15 01:25:47,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:47" (1/1) ... [2019-10-15 01:25:47,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:47" (1/1) ... [2019-10-15 01:25:47,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:47" (1/1) ... [2019-10-15 01:25:48,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:47" (1/1) ... [2019-10-15 01:25:48,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:47" (1/1) ... [2019-10-15 01:25:48,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:47" (1/1) ... [2019-10-15 01:25:48,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:25:48,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:25:48,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:25:48,107 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:25:48,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:47" (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 01:25:48,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:25:48,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:25:48,191 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-10-15 01:25:48,191 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2019-10-15 01:25:48,191 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2019-10-15 01:25:48,192 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2019-10-15 01:25:48,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2019-10-15 01:25:48,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2019-10-15 01:25:48,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2019-10-15 01:25:48,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2019-10-15 01:25:48,193 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2019-10-15 01:25:48,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2019-10-15 01:25:48,194 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2019-10-15 01:25:48,195 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts3 [2019-10-15 01:25:48,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2019-10-15 01:25:48,195 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts3 [2019-10-15 01:25:48,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-10-15 01:25:48,198 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2019-10-15 01:25:48,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-10-15 01:25:48,198 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2019-10-15 01:25:48,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2019-10-15 01:25:48,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2019-10-15 01:25:48,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2019-10-15 01:25:48,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2019-10-15 01:25:48,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2019-10-15 01:25:48,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i0 [2019-10-15 01:25:48,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2019-10-15 01:25:48,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2019-10-15 01:25:48,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2019-10-15 01:25:48,200 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:25:48,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2019-10-15 01:25:48,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2019-10-15 01:25:48,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2019-10-15 01:25:48,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2019-10-15 01:25:48,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2019-10-15 01:25:48,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2019-10-15 01:25:48,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2019-10-15 01:25:48,201 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2019-10-15 01:25:48,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2019-10-15 01:25:48,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2019-10-15 01:25:48,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2019-10-15 01:25:48,202 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2019-10-15 01:25:48,203 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2019-10-15 01:25:48,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:25:48,203 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2019-10-15 01:25:48,203 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i0 [2019-10-15 01:25:48,203 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2019-10-15 01:25:48,203 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2019-10-15 01:25:48,203 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2019-10-15 01:25:48,204 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-10-15 01:25:48,204 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-15 01:25:48,204 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-10-15 01:25:48,204 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:25:48,204 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 01:25:48,205 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_lock [2019-10-15 01:25:48,205 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_unlock [2019-10-15 01:25:48,205 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-10-15 01:25:48,205 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2019-10-15 01:25:48,205 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2019-10-15 01:25:48,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:25:48,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:25:48,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:25:48,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:25:48,207 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-15 01:25:48,207 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2019-10-15 01:25:48,207 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2019-10-15 01:25:48,207 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2019-10-15 01:25:48,207 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2019-10-15 01:25:48,207 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2019-10-15 01:25:48,208 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2019-10-15 01:25:48,208 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2019-10-15 01:25:48,208 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2019-10-15 01:25:48,208 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2019-10-15 01:25:48,209 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2019-10-15 01:25:48,209 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2019-10-15 01:25:48,209 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2019-10-15 01:25:48,209 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2019-10-15 01:25:48,209 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2019-10-15 01:25:48,209 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2019-10-15 01:25:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2019-10-15 01:25:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2019-10-15 01:25:48,210 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2019-10-15 01:25:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2019-10-15 01:25:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2019-10-15 01:25:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts3 [2019-10-15 01:25:48,212 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2019-10-15 01:25:48,212 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts3 [2019-10-15 01:25:48,213 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2019-10-15 01:25:48,213 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2019-10-15 01:25:48,213 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2019-10-15 01:25:48,213 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2019-10-15 01:25:48,213 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2019-10-15 01:25:48,213 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2019-10-15 01:25:48,214 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2019-10-15 01:25:48,214 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2019-10-15 01:25:48,214 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2019-10-15 01:25:48,214 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:25:48,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:25:48,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:25:48,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:25:56,627 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:25:56,627 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 01:25:56,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:25:56 BoogieIcfgContainer [2019-10-15 01:25:56,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:25:56,630 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:25:56,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:25:56,634 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:25:56,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:25:46" (1/3) ... [2019-10-15 01:25:56,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b33738d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:25:56, skipping insertion in model container [2019-10-15 01:25:56,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:25:47" (2/3) ... [2019-10-15 01:25:56,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b33738d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:25:56, skipping insertion in model container [2019-10-15 01:25:56,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:25:56" (3/3) ... [2019-10-15 01:25:56,638 INFO L109 eAbstractionObserver]: Analyzing ICFG rekh_aso.1.M4-1.c [2019-10-15 01:25:56,649 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:25:56,660 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:25:56,671 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:25:56,706 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:25:56,706 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:25:56,706 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:25:56,706 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:25:56,706 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:25:56,706 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:25:56,707 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:25:56,707 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:25:56,740 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states. [2019-10-15 01:25:56,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-10-15 01:25:56,755 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:25:56,756 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, 1, 1, 1, 1, 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 01:25:56,758 INFO L410 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:25:56,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:25:56,764 INFO L82 PathProgramCache]: Analyzing trace with hash -425733996, now seen corresponding path program 1 times [2019-10-15 01:25:56,774 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:25:56,774 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740358395] [2019-10-15 01:25:56,775 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:25:56,775 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:25:56,775 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:25:57,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat