/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.3.M4.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 01:21:37,591 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 01:21:37,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 01:21:37,634 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 01:21:37,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 01:21:37,636 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 01:21:37,637 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 01:21:37,638 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 01:21:37,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 01:21:37,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 01:21:37,640 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 01:21:37,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 01:21:37,641 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 01:21:37,641 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 01:21:37,642 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 01:21:37,642 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 01:21:37,643 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 01:21:37,644 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 01:21:37,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 01:21:37,646 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 01:21:37,647 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 01:21:37,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 01:21:37,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 01:21:37,659 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 01:21:37,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 01:21:37,669 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 01:21:37,669 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 01:21:37,669 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 01:21:37,670 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 01:21:37,670 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-01-10 01:21:37,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 01:21:37,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 01:21:37,674 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 01:21:37,675 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 01:21:37,691 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 01:21:37,692 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 01:21:37,692 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 01:21:37,692 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 01:21:37,692 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 01:21:37,693 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 01:21:37,693 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 01:21:37,693 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 01:21:37,693 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 01:21:37,693 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 01:21:37,693 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 01:21:37,694 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 01:21:37,694 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 01:21:37,694 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 01:21:37,694 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 01:21:37,694 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 01:21:37,694 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 01:21:37,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 01:21:37,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 01:21:37,695 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 01:21:37,695 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 01:21:37,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:21:37,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 01:21:37,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 01:21:37,695 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 01:21:37,695 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 01:21:37,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 01:21:37,696 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 01:21:37,696 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 01:21:37,696 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 01:21:37,696 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 01:21:37,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 01:21:37,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 01:21:37,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 01:21:37,899 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 01:21:37,899 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 01:21:37,900 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.3.M4.c [2022-01-10 01:21:37,951 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf0a5e692/24c6fbcb8d554d898b7237fd25a20076/FLAG3ea2b4aac [2022-01-10 01:21:38,563 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 01:21:38,564 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/rekcba_nxt.3.M4.c [2022-01-10 01:21:38,604 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf0a5e692/24c6fbcb8d554d898b7237fd25a20076/FLAG3ea2b4aac [2022-01-10 01:21:39,027 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf0a5e692/24c6fbcb8d554d898b7237fd25a20076 [2022-01-10 01:21:39,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 01:21:39,033 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 01:21:39,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 01:21:39,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 01:21:39,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 01:21:39,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:21:39" (1/1) ... [2022-01-10 01:21:39,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7979f883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:39, skipping insertion in model container [2022-01-10 01:21:39,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:21:39" (1/1) ... [2022-01-10 01:21:39,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 01:21:39,150 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 01:21:39,330 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.3.M4.c[2275,2288] [2022-01-10 01:21:40,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:21:40,071 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 01:21:40,086 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.3.M4.c[2275,2288] [2022-01-10 01:21:40,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:21:40,654 INFO L208 MainTranslator]: Completed translation [2022-01-10 01:21:40,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:40 WrapperNode [2022-01-10 01:21:40,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 01:21:40,656 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 01:21:40,657 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 01:21:40,657 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 01:21:40,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:40" (1/1) ... [2022-01-10 01:21:40,964 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:40" (1/1) ... [2022-01-10 01:21:41,989 INFO L137 Inliner]: procedures = 62, calls = 19692, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 41777 [2022-01-10 01:21:41,989 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 01:21:41,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 01:21:41,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 01:21:41,990 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 01:21:42,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:40" (1/1) ... [2022-01-10 01:21:42,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:40" (1/1) ... [2022-01-10 01:21:42,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:40" (1/1) ... [2022-01-10 01:21:42,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:40" (1/1) ... [2022-01-10 01:21:43,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:40" (1/1) ... [2022-01-10 01:21:43,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:40" (1/1) ... [2022-01-10 01:21:43,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:40" (1/1) ... [2022-01-10 01:21:43,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 01:21:43,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 01:21:43,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 01:21:43,338 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 01:21:43,339 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:40" (1/1) ... [2022-01-10 01:21:43,344 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:21:43,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 01:21:43,362 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 01:21:43,373 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 01:21:43,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 01:21:43,391 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-01-10 01:21:43,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-01-10 01:21:43,391 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2022-01-10 01:21:43,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2022-01-10 01:21:43,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-10 01:21:43,392 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-01-10 01:21:43,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-01-10 01:21:43,392 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-01-10 01:21:43,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-01-10 01:21:43,392 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_observer_obstacle_flag [2022-01-10 01:21:43,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_observer_obstacle_flag [2022-01-10 01:21:43,392 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2022-01-10 01:21:43,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2022-01-10 01:21:43,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-10 01:21:43,392 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-01-10 01:21:43,393 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-01-10 01:21:43,393 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2022-01-10 01:21:43,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2022-01-10 01:21:43,393 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-01-10 01:21:43,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2022-01-10 01:21:43,393 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-01-10 01:21:43,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2022-01-10 01:21:43,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 01:21:43,393 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2022-01-10 01:21:43,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2022-01-10 01:21:43,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-10 01:21:43,393 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-01-10 01:21:43,393 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-01-10 01:21:43,393 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2022-01-10 01:21:43,393 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2022-01-10 01:21:43,393 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2022-01-10 01:21:43,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2022-01-10 01:21:43,394 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-01-10 01:21:43,394 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-01-10 01:21:43,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-10 01:21:43,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 01:21:43,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 01:21:43,394 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2022-01-10 01:21:43,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2022-01-10 01:21:43,394 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-01-10 01:21:43,395 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-01-10 01:21:43,395 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2022-01-10 01:21:43,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2022-01-10 01:21:44,951 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 01:21:44,952 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 01:22:43,486 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 01:22:43,526 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 01:22:43,526 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 01:22:43,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:22:43 BoogieIcfgContainer [2022-01-10 01:22:43,538 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 01:22:43,540 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 01:22:43,540 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 01:22:43,542 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 01:22:43,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:21:39" (1/3) ... [2022-01-10 01:22:43,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca39a70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:22:43, skipping insertion in model container [2022-01-10 01:22:43,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:21:40" (2/3) ... [2022-01-10 01:22:43,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ca39a70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:22:43, skipping insertion in model container [2022-01-10 01:22:43,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:22:43" (3/3) ... [2022-01-10 01:22:43,547 INFO L111 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.3.M4.c [2022-01-10 01:22:43,552 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 01:22:43,552 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 01:22:43,627 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 01:22:43,637 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 01:22:43,637 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 01:22:43,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 12489 states, 8126 states have (on average 1.311469357617524) internal successors, (10657), 8238 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 01:22:44,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5259 [2022-01-10 01:22:44,150 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:22:44,153 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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01:22:44,154 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 01:22:44,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:22:44,159 INFO L85 PathProgramCache]: Analyzing trace with hash 411216939, now seen corresponding path program 1 times [2022-01-10 01:22:44,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:22:44,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569838304] [2022-01-10 01:22:44,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:22:44,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms