/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.2.M4-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 01:21:36,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 01:21:36,301 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 01:21:36,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 01:21:36,368 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 01:21:36,369 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 01:21:36,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 01:21:36,371 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 01:21:36,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 01:21:36,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 01:21:36,374 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 01:21:36,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 01:21:36,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 01:21:36,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 01:21:36,379 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 01:21:36,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 01:21:36,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 01:21:36,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 01:21:36,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 01:21:36,392 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 01:21:36,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 01:21:36,396 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 01:21:36,397 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 01:21:36,398 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 01:21:36,401 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 01:21:36,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 01:21:36,402 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 01:21:36,402 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 01:21:36,402 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 01:21:36,403 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 01:21:36,403 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 01:21:36,404 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 01:21:36,404 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 01:21:36,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 01:21:36,405 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 01:21:36,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 01:21:36,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 01:21:36,406 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 01:21:36,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 01:21:36,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 01:21:36,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 01:21:36,413 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf [2022-01-10 01:21:36,431 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 01:21:36,433 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 01:21:36,434 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 01:21:36,434 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 01:21:36,434 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 01:21:36,434 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 01:21:36,435 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 01:21:36,435 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 01:21:36,435 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 01:21:36,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 01:21:36,436 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 01:21:36,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 01:21:36,436 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 01:21:36,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 01:21:36,436 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 01:21:36,436 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 01:21:36,436 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 01:21:36,436 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 01:21:36,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 01:21:36,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 01:21:36,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 01:21:36,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:21:36,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 01:21:36,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 01:21:36,437 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 01:21:36,437 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 01:21:36,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 01:21:36,437 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 01:21:36,437 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 01:21:36,437 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 01:21:36,438 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 01:21:36,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 01:21:36,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 01:21:36,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 01:21:36,623 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 01:21:36,624 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 01:21:36,625 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.2.M4-2.c [2022-01-10 01:21:36,673 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f7add857/17a7086405ec4ed8a236a48b605feb33/FLAG712835986 [2022-01-10 01:21:37,299 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 01:21:37,300 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.2.M4-2.c [2022-01-10 01:21:37,334 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f7add857/17a7086405ec4ed8a236a48b605feb33/FLAG712835986 [2022-01-10 01:21:37,423 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f7add857/17a7086405ec4ed8a236a48b605feb33 [2022-01-10 01:21:37,426 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 01:21:37,427 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 01:21:37,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 01:21:37,428 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 01:21:37,430 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 01:21:37,431 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:21:37" (1/1) ... [2022-01-10 01:21:37,432 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eac2635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:37, skipping insertion in model container [2022-01-10 01:21:37,432 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:21:37" (1/1) ... [2022-01-10 01:21:37,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 01:21:37,531 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 01:21:37,764 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.2.M4-2.c[2278,2291] [2022-01-10 01:21:38,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:21:38,770 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 01:21:38,793 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.2.M4-2.c[2278,2291] [2022-01-10 01:21:39,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:21:39,444 INFO L208 MainTranslator]: Completed translation [2022-01-10 01:21:39,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:39 WrapperNode [2022-01-10 01:21:39,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 01:21:39,447 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 01:21:39,447 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 01:21:39,447 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 01:21:39,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:39" (1/1) ... [2022-01-10 01:21:39,759 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:39" (1/1) ... [2022-01-10 01:21:40,715 INFO L137 Inliner]: procedures = 62, calls = 19692, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 41777 [2022-01-10 01:21:40,715 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 01:21:40,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 01:21:40,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 01:21:40,716 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 01:21:40,722 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:39" (1/1) ... [2022-01-10 01:21:40,722 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:39" (1/1) ... [2022-01-10 01:21:41,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:39" (1/1) ... [2022-01-10 01:21:41,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:39" (1/1) ... [2022-01-10 01:21:41,514 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:39" (1/1) ... [2022-01-10 01:21:41,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:39" (1/1) ... [2022-01-10 01:21:41,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:39" (1/1) ... [2022-01-10 01:21:41,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 01:21:41,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 01:21:41,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 01:21:41,895 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 01:21:41,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:39" (1/1) ... [2022-01-10 01:21:41,902 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:21:41,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 01:21:41,920 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) [2022-01-10 01:21:41,934 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 [2022-01-10 01:21:41,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 01:21:41,952 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-01-10 01:21:41,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-01-10 01:21:41,952 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-01-10 01:21:41,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-01-10 01:21:41,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-10 01:21:41,953 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-01-10 01:21:41,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-01-10 01:21:41,953 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-01-10 01:21:41,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-01-10 01:21:41,953 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_observer_obstacle_flag [2022-01-10 01:21:41,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_observer_obstacle_flag [2022-01-10 01:21:41,953 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-01-10 01:21:41,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-01-10 01:21:41,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-10 01:21:41,953 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-01-10 01:21:41,953 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-01-10 01:21:41,953 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-01-10 01:21:41,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-01-10 01:21:41,953 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-01-10 01:21:41,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-01-10 01:21:41,953 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-01-10 01:21:41,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-01-10 01:21:41,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 01:21:41,954 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2022-01-10 01:21:41,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2022-01-10 01:21:41,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-10 01:21:41,954 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-01-10 01:21:41,954 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-01-10 01:21:41,954 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-01-10 01:21:41,954 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-01-10 01:21:41,954 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-01-10 01:21:41,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-01-10 01:21:41,954 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-01-10 01:21:41,954 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-01-10 01:21:41,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-10 01:21:41,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 01:21:41,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 01:21:41,954 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-01-10 01:21:41,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-01-10 01:21:41,955 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-01-10 01:21:41,955 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-01-10 01:21:41,955 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-01-10 01:21:41,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-01-10 01:21:43,421 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 01:21:43,422 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 01:22:42,092 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 01:22:42,138 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 01:22:42,139 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 01:22:42,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:22:42 BoogieIcfgContainer [2022-01-10 01:22:42,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 01:22:42,153 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 01:22:42,153 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 01:22:42,156 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 01:22:42,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:21:37" (1/3) ... [2022-01-10 01:22:42,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b1243cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:22:42, skipping insertion in model container [2022-01-10 01:22:42,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:39" (2/3) ... [2022-01-10 01:22:42,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b1243cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:22:42, skipping insertion in model container [2022-01-10 01:22:42,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:22:42" (3/3) ... [2022-01-10 01:22:42,159 INFO L111 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.2.M4-2.c [2022-01-10 01:22:42,163 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 01:22:42,164 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 01:22:42,235 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 01:22:42,242 INFO L339 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=PETRI_NET, 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 01:22:42,242 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 01:22:42,404 INFO L276 IsEmpty]: Start isEmpty. Operand has 12489 states, 8126 states have (on average 1.311469357617524) internal successors, (10657), 8239 states have internal predecessors, (10657), 4343 states have call successors, (4343), 18 states have call predecessors, (4343), 18 states have return successors, (4343), 4341 states have call predecessors, (4343), 4343 states have call successors, (4343) [2022-01-10 01:22:42,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5259 [2022-01-10 01:22:42,897 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:22:42,900 INFO L514 BasicCegarLoop]: trace histogram [444, 444, 444, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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01:22:42,901 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:22:42,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:22:42,908 INFO L85 PathProgramCache]: Analyzing trace with hash 411216939, now seen corresponding path program 1 times [2022-01-10 01:22:42,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:22:42,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460519472] [2022-01-10 01:22:42,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:22:42,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms