/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain EqDomain -i ../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 12:30:20,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 12:30:20,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 12:30:20,181 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 12:30:20,181 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 12:30:20,184 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 12:30:20,187 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 12:30:20,189 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 12:30:20,191 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 12:30:20,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 12:30:20,197 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 12:30:20,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 12:30:20,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 12:30:20,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 12:30:20,204 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 12:30:20,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 12:30:20,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 12:30:20,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 12:30:20,208 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 12:30:20,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 12:30:20,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 12:30:20,214 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 12:30:20,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 12:30:20,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 12:30:20,227 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 12:30:20,228 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 12:30:20,228 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 12:30:20,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 12:30:20,229 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 12:30:20,230 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 12:30:20,230 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 12:30:20,231 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 12:30:20,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 12:30:20,232 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 12:30:20,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 12:30:20,233 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 12:30:20,233 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 12:30:20,234 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 12:30:20,234 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 12:30:20,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 12:30:20,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 12:30:20,240 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 12:30:20,266 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 12:30:20,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 12:30:20,267 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 12:30:20,267 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 12:30:20,268 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 12:30:20,268 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 12:30:20,268 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 12:30:20,268 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 12:30:20,268 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 12:30:20,268 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 12:30:20,268 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 12:30:20,269 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 12:30:20,269 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 12:30:20,269 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 12:30:20,269 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 12:30:20,269 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 12:30:20,269 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 12:30:20,269 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 12:30:20,270 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 12:30:20,270 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 12:30:20,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 12:30:20,270 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 12:30:20,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 12:30:20,271 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 12:30:20,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 12:30:20,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 12:30:20,271 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 12:30:20,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 12:30:20,271 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 12:30:20,271 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 12:30:20,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 12:30:20,272 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 12:30:20,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 12:30:20,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 12:30:20,272 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 12:30:20,272 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 12:30:20,272 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 12:30:20,272 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 12:30:20,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 12:30:20,273 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 12:30:20,273 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 12:30:20,273 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 12:30:20,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 12:30:20,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 12:30:20,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 12:30:20,498 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 12:30:20,499 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 12:30:20,500 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M1.c [2023-04-01 12:30:21,723 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 12:30:22,034 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 12:30:22,035 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M1.c [2023-04-01 12:30:22,051 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb8dc7f24/0c33f8bcebdb42a78f5e88ba0c374a0f/FLAGd80e1d54e [2023-04-01 12:30:22,066 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb8dc7f24/0c33f8bcebdb42a78f5e88ba0c374a0f [2023-04-01 12:30:22,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 12:30:22,070 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 12:30:22,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 12:30:22,074 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 12:30:22,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 12:30:22,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:30:22" (1/1) ... [2023-04-01 12:30:22,079 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@393d3ea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:22, skipping insertion in model container [2023-04-01 12:30:22,079 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 12:30:22" (1/1) ... [2023-04-01 12:30:22,087 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 12:30:22,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 12:30:22,321 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M1.c[2017,2030] [2023-04-01 12:30:22,638 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 12:30:22,653 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 12:30:22,666 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.3.M1.c[2017,2030] [2023-04-01 12:30:22,917 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 12:30:22,948 INFO L208 MainTranslator]: Completed translation [2023-04-01 12:30:22,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:22 WrapperNode [2023-04-01 12:30:22,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 12:30:22,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 12:30:22,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 12:30:22,950 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 12:30:22,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:22" (1/1) ... [2023-04-01 12:30:22,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:22" (1/1) ... [2023-04-01 12:30:23,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:22" (1/1) ... [2023-04-01 12:30:23,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:22" (1/1) ... [2023-04-01 12:30:23,137 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:22" (1/1) ... [2023-04-01 12:30:23,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:22" (1/1) ... [2023-04-01 12:30:23,162 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:22" (1/1) ... [2023-04-01 12:30:23,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:22" (1/1) ... [2023-04-01 12:30:23,207 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 12:30:23,208 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 12:30:23,208 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 12:30:23,209 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 12:30:23,210 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:22" (1/1) ... [2023-04-01 12:30:23,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 12:30:23,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 12:30:23,244 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 12:30:23,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 12:30:23,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 12:30:23,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 12:30:23,287 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 12:30:23,287 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 12:30:23,287 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-04-01 12:30:23,288 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_init [2023-04-01 12:30:23,288 INFO L138 BoogieDeclarations]: Found implementation of procedure balance_control [2023-04-01 12:30:23,288 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2023-04-01 12:30:23,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2023-04-01 12:30:23,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2023-04-01 12:30:23,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_read_bt_packet [2023-04-01 12:30:23,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_battery_voltage [2023-04-01 12:30:23,288 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts1 [2023-04-01 12:30:23,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_sonar_sensor [2023-04-01 12:30:23,288 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_ts2 [2023-04-01 12:30:23,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-01 12:30:23,289 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts2 [2023-04-01 12:30:23,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-01 12:30:23,289 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_ts1 [2023-04-01 12:30:23,289 INFO L138 BoogieDeclarations]: Found implementation of procedure OSEK_Task_Background [2023-04-01 12:30:23,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2023-04-01 12:30:23,289 INFO L138 BoogieDeclarations]: Found implementation of procedure cil_keeperOSEK_Task_Background [2023-04-01 12:30:23,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_schedule_jobs [2023-04-01 12:30:23,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_globals [2023-04-01 12:30:23,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2023-04-01 12:30:23,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2023-04-01 12:30:23,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2023-04-01 12:30:23,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_assert_i0 [2023-04-01 12:30:23,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assumptions [2023-04-01 12:30:23,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_init [2023-04-01 12:30:23,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_user_final [2023-04-01 12:30:23,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_check_assertions [2023-04-01 12:30:23,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __main [2023-04-01 12:30:23,290 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 12:30:23,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2023-04-01 12:30:23,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2023-04-01 12:30:23,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_observer_obstacle_flag [2023-04-01 12:30:23,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2023-04-01 12:30:23,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2023-04-01 12:30:23,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_observer_obstacle_flag [2023-04-01 12:30:23,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_init_shared [2023-04-01 12:30:23,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_bt_data_logger [2023-04-01 12:30:23,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_sound_tone [2023-04-01 12:30:23,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_status_monitor [2023-04-01 12:30:23,292 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2023-04-01 12:30:23,293 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2023-04-01 12:30:23,293 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_on_lcd [2023-04-01 12:30:23,293 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 12:30:23,293 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 12:30:23,293 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 12:30:23,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 12:30:23,294 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_shared [2023-04-01 12:30:23,294 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_assert_i0 [2023-04-01 12:30:23,294 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2023-04-01 12:30:23,294 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2023-04-01 12:30:23,294 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2023-04-01 12:30:23,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-01 12:30:23,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2023-04-01 12:30:23,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 12:30:23,295 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 12:30:23,295 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_lock [2023-04-01 12:30:23,295 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cpu_unlock [2023-04-01 12:30:23,295 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-04-01 12:30:23,295 INFO L130 BoogieDeclarations]: Found specification of procedure balance_init [2023-04-01 12:30:23,295 INFO L130 BoogieDeclarations]: Found specification of procedure balance_control [2023-04-01 12:30:23,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 12:30:23,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 12:30:23,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 12:30:23,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 12:30:23,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-01 12:30:23,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-04-01 12:30:23,296 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2023-04-01 12:30:23,296 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2023-04-01 12:30:23,296 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2023-04-01 12:30:23,296 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2023-04-01 12:30:23,296 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_observer_obstacle_flag [2023-04-01 12:30:23,296 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_observer_obstacle_flag [2023-04-01 12:30:23,297 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2023-04-01 12:30:23,297 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2023-04-01 12:30:23,297 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2023-04-01 12:30:23,297 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2023-04-01 12:30:23,297 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_sound_tone [2023-04-01 12:30:23,297 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_status_monitor [2023-04-01 12:30:23,298 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_read_bt_packet [2023-04-01 12:30:23,298 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_battery_voltage [2023-04-01 12:30:23,298 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2023-04-01 12:30:23,298 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_bt_data_logger [2023-04-01 12:30:23,298 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts1 [2023-04-01 12:30:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_sonar_sensor [2023-04-01 12:30:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_ts2 [2023-04-01 12:30:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2023-04-01 12:30:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts2 [2023-04-01 12:30:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2023-04-01 12:30:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_ts1 [2023-04-01 12:30:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_on_lcd [2023-04-01 12:30:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure OSEK_Task_Background [2023-04-01 12:30:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2023-04-01 12:30:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure cil_keeperOSEK_Task_Background [2023-04-01 12:30:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_schedule_jobs [2023-04-01 12:30:23,299 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_init_globals [2023-04-01 12:30:23,300 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assumptions [2023-04-01 12:30:23,300 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_init [2023-04-01 12:30:23,300 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_user_final [2023-04-01 12:30:23,300 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_check_assertions [2023-04-01 12:30:23,300 INFO L130 BoogieDeclarations]: Found specification of procedure __main [2023-04-01 12:30:23,300 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 12:30:23,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 12:30:23,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 12:30:23,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 12:30:23,718 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 12:30:23,723 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 12:30:31,086 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 12:30:31,249 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 12:30:31,249 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 12:30:31,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:30:31 BoogieIcfgContainer [2023-04-01 12:30:31,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 12:30:31,257 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 12:30:31,257 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 12:30:31,260 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 12:30:31,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 12:30:22" (1/3) ... [2023-04-01 12:30:31,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26f7b241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:30:31, skipping insertion in model container [2023-04-01 12:30:31,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 12:30:22" (2/3) ... [2023-04-01 12:30:31,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26f7b241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 12:30:31, skipping insertion in model container [2023-04-01 12:30:31,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 12:30:31" (3/3) ... [2023-04-01 12:30:31,263 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.3.M1.c [2023-04-01 12:30:31,280 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 12:30:31,280 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 12:30:31,349 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 12:30:31,355 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3dc1f35b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 12:30:31,355 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 12:30:31,365 INFO L276 IsEmpty]: Start isEmpty. Operand has 1324 states, 798 states have (on average 1.2656641604010026) internal successors, (1010), 832 states have internal predecessors, (1010), 479 states have call successors, (479), 42 states have call predecessors, (479), 42 states have return successors, (479), 476 states have call predecessors, (479), 479 states have call successors, (479) [2023-04-01 12:30:31,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 676 [2023-04-01 12:30:31,428 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 12:30:31,430 INFO L195 NwaCegarLoop]: trace histogram [111, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 12:30:31,431 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 12:30:31,436 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 12:30:31,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1466012345, now seen corresponding path program 1 times [2023-04-01 12:30:31,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 12:30:31,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305607975] [2023-04-01 12:30:31,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 12:30:31,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms