/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/rekh_aso.1.M4-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 01:21:45,561 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 01:21:45,563 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 01:21:45,629 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 01:21:45,629 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 01:21:45,633 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 01:21:45,635 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 01:21:45,637 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 01:21:45,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 01:21:45,642 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 01:21:45,643 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 01:21:45,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 01:21:45,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 01:21:45,646 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 01:21:45,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 01:21:45,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 01:21:45,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 01:21:45,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 01:21:45,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 01:21:45,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 01:21:45,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 01:21:45,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 01:21:45,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 01:21:45,660 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 01:21:45,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 01:21:45,665 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 01:21:45,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 01:21:45,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 01:21:45,667 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 01:21:45,667 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 01:21:45,667 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 01:21:45,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 01:21:45,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 01:21:45,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 01:21:45,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 01:21:45,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 01:21:45,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 01:21:45,671 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 01:21:45,671 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 01:21:45,671 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 01:21:45,672 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 01:21:45,673 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 01:21:45,698 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 01:21:45,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 01:21:45,698 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 01:21:45,698 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 01:21:45,699 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 01:21:45,699 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 01:21:45,699 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 01:21:45,699 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 01:21:45,699 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 01:21:45,700 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 01:21:45,700 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 01:21:45,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 01:21:45,700 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 01:21:45,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 01:21:45,701 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 01:21:45,701 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 01:21:45,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 01:21:45,701 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 01:21:45,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 01:21:45,701 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 01:21:45,701 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 01:21:45,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:21:45,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 01:21:45,701 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 01:21:45,702 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 01:21:45,702 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 01:21:45,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 01:21:45,703 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 01:21:45,703 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 01:21:45,703 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 01:21:45,703 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 01:21:45,874 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 01:21:45,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 01:21:45,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 01:21:45,893 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 01:21:45,893 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 01:21:45,894 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekh_aso.1.M4-2.c [2022-01-10 01:21:45,955 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac831fa45/5b60a8a8e49b43369f7f683e9b600b97/FLAG5c5106fae [2022-01-10 01:21:46,513 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 01:21:46,513 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekh_aso.1.M4-2.c [2022-01-10 01:21:46,533 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac831fa45/5b60a8a8e49b43369f7f683e9b600b97/FLAG5c5106fae [2022-01-10 01:21:46,929 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac831fa45/5b60a8a8e49b43369f7f683e9b600b97 [2022-01-10 01:21:46,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 01:21:46,933 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 01:21:46,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 01:21:46,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 01:21:46,937 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 01:21:46,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:21:46" (1/1) ... [2022-01-10 01:21:46,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36f9495d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:46, skipping insertion in model container [2022-01-10 01:21:46,939 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:21:46" (1/1) ... [2022-01-10 01:21:46,943 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 01:21:46,996 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 01:21:47,194 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/rekh_aso.1.M4-2.c[1719,1732] [2022-01-10 01:21:47,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:21:47,512 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 01:21:47,524 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/rekh_aso.1.M4-2.c[1719,1732] [2022-01-10 01:21:47,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:21:47,733 INFO L208 MainTranslator]: Completed translation [2022-01-10 01:21:47,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:47 WrapperNode [2022-01-10 01:21:47,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 01:21:47,735 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 01:21:47,735 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 01:21:47,735 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 01:21:47,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:47" (1/1) ... [2022-01-10 01:21:47,800 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:47" (1/1) ... [2022-01-10 01:21:47,937 INFO L137 Inliner]: procedures = 58, calls = 3478, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 6281 [2022-01-10 01:21:47,938 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 01:21:47,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 01:21:47,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 01:21:47,939 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 01:21:47,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:47" (1/1) ... [2022-01-10 01:21:47,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:47" (1/1) ... [2022-01-10 01:21:47,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:47" (1/1) ... [2022-01-10 01:21:47,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:47" (1/1) ... [2022-01-10 01:21:48,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:47" (1/1) ... [2022-01-10 01:21:48,126 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:47" (1/1) ... [2022-01-10 01:21:48,142 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:47" (1/1) ... [2022-01-10 01:21:48,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 01:21:48,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 01:21:48,165 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 01:21:48,165 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 01:21:48,166 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:47" (1/1) ... [2022-01-10 01:21:48,171 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:21:48,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 01:21:48,190 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 01:21:48,197 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 01:21:48,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 01:21:48,229 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2022-01-10 01:21:48,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2022-01-10 01:21:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-01-10 01:21:48,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-01-10 01:21:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-01-10 01:21:48,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-01-10 01:21:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-10 01:21:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-01-10 01:21:48,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-01-10 01:21:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-01-10 01:21:48,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-01-10 01:21:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-01-10 01:21:48,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-01-10 01:21:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-10 01:21:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-01-10 01:21:48,230 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-01-10 01:21:48,230 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-01-10 01:21:48,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-01-10 01:21:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2022-01-10 01:21:48,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2022-01-10 01:21:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-01-10 01:21:48,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-01-10 01:21:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-01-10 01:21:48,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-01-10 01:21:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-01-10 01:21:48,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2022-01-10 01:21:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 01:21:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-01-10 01:21:48,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-01-10 01:21:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-10 01:21:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-01-10 01:21:48,231 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-01-10 01:21:48,231 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-01-10 01:21:48,231 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-01-10 01:21:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2022-01-10 01:21:48,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2022-01-10 01:21:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-01-10 01:21:48,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-01-10 01:21:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-01-10 01:21:48,232 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-01-10 01:21:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-10 01:21:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 01:21:48,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 01:21:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-01-10 01:21:48,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-01-10 01:21:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-01-10 01:21:48,232 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-01-10 01:21:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-01-10 01:21:48,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-01-10 01:21:48,232 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2022-01-10 01:21:48,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2022-01-10 01:21:48,737 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 01:21:48,739 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 01:21:56,712 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 01:21:56,741 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 01:21:56,741 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 01:21:56,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:21:56 BoogieIcfgContainer [2022-01-10 01:21:56,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 01:21:56,746 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 01:21:56,746 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 01:21:56,748 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 01:21:56,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:21:46" (1/3) ... [2022-01-10 01:21:56,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@321bb8da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:21:56, skipping insertion in model container [2022-01-10 01:21:56,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:47" (2/3) ... [2022-01-10 01:21:56,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@321bb8da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:21:56, skipping insertion in model container [2022-01-10 01:21:56,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:21:56" (3/3) ... [2022-01-10 01:21:56,751 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_aso.1.M4-2.c [2022-01-10 01:21:56,754 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 01:21:56,755 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 01:21:56,795 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 01:21:56,799 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 01:21:56,800 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 01:21:56,859 INFO L276 IsEmpty]: Start isEmpty. Operand has 2339 states, 1375 states have (on average 1.1985454545454546) internal successors, (1648), 1380 states have internal predecessors, (1648), 940 states have call successors, (940), 22 states have call predecessors, (940), 22 states have return successors, (940), 938 states have call predecessors, (940), 940 states have call successors, (940) [2022-01-10 01:21:56,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1339 [2022-01-10 01:21:56,964 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:21:56,965 INFO L514 BasicCegarLoop]: trace histogram [209, 209, 209, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:21:56,966 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:21:56,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:21:56,972 INFO L85 PathProgramCache]: Analyzing trace with hash 181886461, now seen corresponding path program 1 times [2022-01-10 01:21:56,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:21:56,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133298506] [2022-01-10 01:21:56,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:21:56,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms