/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 15:38:38,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 15:38:38,271 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 15:38:38,340 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 15:38:38,341 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 15:38:38,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 15:38:38,350 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 15:38:38,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 15:38:38,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 15:38:38,364 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 15:38:38,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 15:38:38,369 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 15:38:38,370 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 15:38:38,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 15:38:38,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 15:38:38,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 15:38:38,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 15:38:38,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 15:38:38,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 15:38:38,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 15:38:38,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 15:38:38,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 15:38:38,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 15:38:38,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 15:38:38,420 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 15:38:38,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 15:38:38,426 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 15:38:38,428 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 15:38:38,429 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 15:38:38,431 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 15:38:38,431 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 15:38:38,432 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 15:38:38,432 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 15:38:38,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 15:38:38,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 15:38:38,434 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 15:38:38,440 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 15:38:38,495 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 15:38:38,495 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 15:38:38,496 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 15:38:38,496 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 15:38:38,498 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 15:38:38,498 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 15:38:38,501 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 15:38:38,502 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 15:38:38,502 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 15:38:38,502 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 15:38:38,503 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 15:38:38,504 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 15:38:38,504 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 15:38:38,504 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 15:38:38,504 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 15:38:38,504 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 15:38:38,505 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 15:38:38,505 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 15:38:38,505 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 15:38:38,505 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 15:38:38,505 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 15:38:38,506 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 15:38:38,506 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 15:38:38,506 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 15:38:38,506 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 15:38:38,506 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 15:38:38,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:38:38,507 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 15:38:38,507 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 15:38:38,507 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 15:38:38,507 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 15:38:38,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 15:38:38,508 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 15:38:38,508 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 15:38:38,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 15:38:38,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 15:38:38,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 15:38:38,984 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 15:38:38,985 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 15:38:38,987 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2022-10-16 15:38:39,078 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb46abb13/440c42564ba04214ae12a8e5f0825088/FLAGd515889cf [2022-10-16 15:38:40,014 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 15:38:40,015 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2022-10-16 15:38:40,070 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb46abb13/440c42564ba04214ae12a8e5f0825088/FLAGd515889cf [2022-10-16 15:38:40,540 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb46abb13/440c42564ba04214ae12a8e5f0825088 [2022-10-16 15:38:40,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 15:38:40,554 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 15:38:40,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 15:38:40,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 15:38:40,566 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 15:38:40,567 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:38:40" (1/1) ... [2022-10-16 15:38:40,568 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33794fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:38:40, skipping insertion in model container [2022-10-16 15:38:40,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:38:40" (1/1) ... [2022-10-16 15:38:40,577 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 15:38:40,690 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 15:38:40,942 WARN L230 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/rekh_ctm.2-1.c[1871,1884] [2022-10-16 15:38:41,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:38:41,730 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 15:38:41,746 WARN L230 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/rekh_ctm.2-1.c[1871,1884] [2022-10-16 15:38:42,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:38:42,197 INFO L208 MainTranslator]: Completed translation [2022-10-16 15:38:42,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:38:42 WrapperNode [2022-10-16 15:38:42,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 15:38:42,200 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 15:38:42,200 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 15:38:42,200 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 15:38:42,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:38:42" (1/1) ... [2022-10-16 15:38:42,313 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:38:42" (1/1) ... [2022-10-16 15:38:42,690 INFO L138 Inliner]: procedures = 99, calls = 2724, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8290 [2022-10-16 15:38:42,690 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 15:38:42,691 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 15:38:42,691 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 15:38:42,691 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 15:38:42,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:38:42" (1/1) ... [2022-10-16 15:38:42,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:38:42" (1/1) ... [2022-10-16 15:38:42,754 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:38:42" (1/1) ... [2022-10-16 15:38:42,755 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:38:42" (1/1) ... [2022-10-16 15:38:42,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:38:42" (1/1) ... [2022-10-16 15:38:43,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:38:42" (1/1) ... [2022-10-16 15:38:43,036 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:38:42" (1/1) ... [2022-10-16 15:38:43,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:38:42" (1/1) ... [2022-10-16 15:38:43,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 15:38:43,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 15:38:43,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 15:38:43,099 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 15:38:43,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:38:42" (1/1) ... [2022-10-16 15:38:43,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:38:43,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:38:43,158 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) [2022-10-16 15:38:43,205 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 [2022-10-16 15:38:43,279 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-10-16 15:38:43,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-10-16 15:38:43,280 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-10-16 15:38:43,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-10-16 15:38:43,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 15:38:43,281 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-10-16 15:38:43,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-10-16 15:38:43,281 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-10-16 15:38:43,281 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-10-16 15:38:43,281 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-10-16 15:38:43,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-10-16 15:38:43,281 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-10-16 15:38:43,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-10-16 15:38:43,282 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-10-16 15:38:43,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-10-16 15:38:43,282 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-10-16 15:38:43,282 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-10-16 15:38:43,282 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-10-16 15:38:43,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-10-16 15:38:43,283 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-10-16 15:38:43,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-10-16 15:38:43,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 15:38:43,283 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-10-16 15:38:43,283 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-10-16 15:38:43,283 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-10-16 15:38:43,283 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-10-16 15:38:43,284 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-10-16 15:38:43,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-10-16 15:38:43,284 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-10-16 15:38:43,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-10-16 15:38:43,284 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-10-16 15:38:43,284 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-10-16 15:38:43,284 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-10-16 15:38:43,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-10-16 15:38:43,285 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-10-16 15:38:43,285 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-10-16 15:38:43,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 15:38:43,285 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-10-16 15:38:43,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-10-16 15:38:43,286 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-10-16 15:38:43,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-10-16 15:38:43,286 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-10-16 15:38:43,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-10-16 15:38:43,286 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-10-16 15:38:43,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-10-16 15:38:43,287 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-10-16 15:38:43,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-10-16 15:38:43,287 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-10-16 15:38:43,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-10-16 15:38:43,287 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-10-16 15:38:43,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-10-16 15:38:43,287 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-10-16 15:38:43,288 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-10-16 15:38:43,288 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-10-16 15:38:43,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-10-16 15:38:43,288 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-10-16 15:38:43,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-10-16 15:38:43,288 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-10-16 15:38:43,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-10-16 15:38:43,289 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-10-16 15:38:43,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-10-16 15:38:43,289 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-10-16 15:38:43,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-10-16 15:38:43,289 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-10-16 15:38:43,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-10-16 15:38:43,290 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-10-16 15:38:43,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-10-16 15:38:43,290 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-10-16 15:38:43,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-10-16 15:38:43,290 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-10-16 15:38:43,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-10-16 15:38:43,291 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-10-16 15:38:43,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-10-16 15:38:43,291 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-10-16 15:38:43,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-10-16 15:38:43,291 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-10-16 15:38:43,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-10-16 15:38:43,292 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-10-16 15:38:43,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-10-16 15:38:43,292 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-10-16 15:38:43,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-10-16 15:38:43,292 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-10-16 15:38:43,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-10-16 15:38:43,292 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-10-16 15:38:43,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-10-16 15:38:43,293 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-10-16 15:38:43,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-10-16 15:38:43,293 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2022-10-16 15:38:43,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2022-10-16 15:38:43,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 15:38:43,294 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-10-16 15:38:43,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-10-16 15:38:43,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 15:38:43,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 15:38:43,988 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 15:38:43,992 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 15:39:02,911 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 15:39:02,947 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 15:39:02,947 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-16 15:39:02,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:39:02 BoogieIcfgContainer [2022-10-16 15:39:02,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 15:39:02,956 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 15:39:02,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 15:39:02,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 15:39:02,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:38:40" (1/3) ... [2022-10-16 15:39:02,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42f6b436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:39:02, skipping insertion in model container [2022-10-16 15:39:02,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:38:42" (2/3) ... [2022-10-16 15:39:02,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42f6b436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:39:02, skipping insertion in model container [2022-10-16 15:39:02,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:39:02" (3/3) ... [2022-10-16 15:39:02,963 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-1.c [2022-10-16 15:39:02,984 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 15:39:02,985 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2022-10-16 15:39:03,121 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 15:39:03,133 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;@3ca16646, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 15:39:03,134 INFO L358 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2022-10-16 15:39:03,151 INFO L276 IsEmpty]: Start isEmpty. Operand has 2548 states, 2153 states have (on average 1.4918718067812355) internal successors, (3212), 2224 states have internal predecessors, (3212), 302 states have call successors, (302), 44 states have call predecessors, (302), 44 states have return successors, (302), 292 states have call predecessors, (302), 302 states have call successors, (302) [2022-10-16 15:39:03,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-10-16 15:39:03,196 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:39:03,197 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:39:03,198 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __startrek_entry_pt_WriterErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [__startrek_entry_pt_ReaderErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __startrek_entry_pt_ReaderErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 46 more)] === [2022-10-16 15:39:03,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:39:03,205 INFO L85 PathProgramCache]: Analyzing trace with hash -537522510, now seen corresponding path program 1 times [2022-10-16 15:39:03,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:39:03,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027760066] [2022-10-16 15:39:03,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:39:03,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms