/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.3-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 15:38:57,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 15:38:57,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 15:38:57,249 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 15:38:57,250 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 15:38:57,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 15:38:57,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 15:38:57,256 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 15:38:57,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 15:38:57,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 15:38:57,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 15:38:57,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 15:38:57,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 15:38:57,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 15:38:57,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 15:38:57,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 15:38:57,287 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 15:38:57,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 15:38:57,291 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 15:38:57,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 15:38:57,296 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 15:38:57,298 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 15:38:57,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 15:38:57,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 15:38:57,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 15:38:57,306 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 15:38:57,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 15:38:57,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 15:38:57,309 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 15:38:57,310 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 15:38:57,311 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 15:38:57,312 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 15:38:57,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 15:38:57,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 15:38:57,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 15:38:57,316 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 15:38:57,317 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 15:38:57,317 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 15:38:57,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 15:38:57,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 15:38:57,320 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 15:38:57,321 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 15:38:57,356 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 15:38:57,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 15:38:57,357 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 15:38:57,357 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 15:38:57,358 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 15:38:57,358 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 15:38:57,359 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 15:38:57,359 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 15:38:57,359 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 15:38:57,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 15:38:57,360 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 15:38:57,360 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 15:38:57,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 15:38:57,362 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 15:38:57,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 15:38:57,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 15:38:57,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 15:38:57,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 15:38:57,363 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 15:38:57,364 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 15:38:57,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 15:38:57,364 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 15:38:57,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 15:38:57,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 15:38:57,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 15:38:57,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 15:38:57,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:38:57,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 15:38:57,367 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 15:38:57,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 15:38:57,368 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 15:38:57,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 15:38:57,369 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 15:38:57,369 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 15:38:57,824 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 15:38:57,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 15:38:57,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 15:38:57,862 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 15:38:57,863 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 15:38:57,865 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c [2022-10-16 15:38:57,948 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1824bfe7/1f807c1177b7499ba66933506050173a/FLAG96f2455bd [2022-10-16 15:38:58,898 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 15:38:58,899 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.3-2.c [2022-10-16 15:38:58,942 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1824bfe7/1f807c1177b7499ba66933506050173a/FLAG96f2455bd [2022-10-16 15:38:59,009 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1824bfe7/1f807c1177b7499ba66933506050173a [2022-10-16 15:38:59,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 15:38:59,021 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 15:38:59,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 15:38:59,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 15:38:59,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 15:38:59,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:38:59" (1/1) ... [2022-10-16 15:38:59,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56a1f35d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:38:59, skipping insertion in model container [2022-10-16 15:38:59,040 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:38:59" (1/1) ... [2022-10-16 15:38:59,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 15:38:59,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 15:38:59,536 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.3-2.c[1871,1884] [2022-10-16 15:39:00,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:39:00,438 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 15:39:00,461 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.3-2.c[1871,1884] [2022-10-16 15:39:00,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:39:00,828 INFO L208 MainTranslator]: Completed translation [2022-10-16 15:39:00,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:00 WrapperNode [2022-10-16 15:39:00,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 15:39:00,830 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 15:39:00,830 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 15:39:00,830 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 15:39:00,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:00" (1/1) ... [2022-10-16 15:39:00,940 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:00" (1/1) ... [2022-10-16 15:39:01,283 INFO L138 Inliner]: procedures = 99, calls = 2816, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8412 [2022-10-16 15:39:01,284 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 15:39:01,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 15:39:01,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 15:39:01,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 15:39:01,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:00" (1/1) ... [2022-10-16 15:39:01,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:00" (1/1) ... [2022-10-16 15:39:01,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:00" (1/1) ... [2022-10-16 15:39:01,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:00" (1/1) ... [2022-10-16 15:39:01,625 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:00" (1/1) ... [2022-10-16 15:39:01,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:00" (1/1) ... [2022-10-16 15:39:01,683 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:00" (1/1) ... [2022-10-16 15:39:01,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:00" (1/1) ... [2022-10-16 15:39:01,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 15:39:01,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 15:39:01,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 15:39:01,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 15:39:01,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:00" (1/1) ... [2022-10-16 15:39:01,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:39:01,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:39:01,867 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 15:39:01,881 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 15:39:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-10-16 15:39:01,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-10-16 15:39:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-10-16 15:39:01,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-10-16 15:39:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 15:39:01,934 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-10-16 15:39:01,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-10-16 15:39:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-10-16 15:39:01,935 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-10-16 15:39:01,935 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-10-16 15:39:01,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-10-16 15:39:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-10-16 15:39:01,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-10-16 15:39:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-10-16 15:39:01,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-10-16 15:39:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-10-16 15:39:01,936 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-10-16 15:39:01,936 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-10-16 15:39:01,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-10-16 15:39:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-10-16 15:39:01,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-10-16 15:39:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 15:39:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-10-16 15:39:01,937 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-10-16 15:39:01,937 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-10-16 15:39:01,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-10-16 15:39:01,938 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-10-16 15:39:01,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-10-16 15:39:01,938 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-10-16 15:39:01,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-10-16 15:39:01,938 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-10-16 15:39:01,938 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-10-16 15:39:01,938 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-10-16 15:39:01,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-10-16 15:39:01,939 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-10-16 15:39:01,939 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-10-16 15:39:01,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 15:39:01,939 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-10-16 15:39:01,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-10-16 15:39:01,939 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-10-16 15:39:01,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-10-16 15:39:01,940 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-10-16 15:39:01,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-10-16 15:39:01,940 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-10-16 15:39:01,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-10-16 15:39:01,940 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-10-16 15:39:01,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-10-16 15:39:01,940 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-10-16 15:39:01,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-10-16 15:39:01,941 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-10-16 15:39:01,941 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-10-16 15:39:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-10-16 15:39:01,942 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-10-16 15:39:01,942 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-10-16 15:39:01,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-10-16 15:39:01,943 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-10-16 15:39:01,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-10-16 15:39:01,944 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-10-16 15:39:01,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-10-16 15:39:01,944 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-10-16 15:39:01,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-10-16 15:39:01,945 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-10-16 15:39:01,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-10-16 15:39:01,945 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-10-16 15:39:01,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-10-16 15:39:01,945 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-10-16 15:39:01,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-10-16 15:39:01,946 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-10-16 15:39:01,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-10-16 15:39:01,947 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-10-16 15:39:01,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-10-16 15:39:01,947 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-10-16 15:39:01,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-10-16 15:39:01,948 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-10-16 15:39:01,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-10-16 15:39:01,949 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-10-16 15:39:01,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-10-16 15:39:01,949 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-10-16 15:39:01,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-10-16 15:39:01,950 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-10-16 15:39:01,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-10-16 15:39:01,950 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-10-16 15:39:01,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-10-16 15:39:01,950 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-10-16 15:39:01,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-10-16 15:39:01,951 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-10-16 15:39:01,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-10-16 15:39:01,951 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-10-16 15:39:01,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-10-16 15:39:01,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 15:39:01,952 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-10-16 15:39:01,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-10-16 15:39:01,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 15:39:01,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 15:39:02,612 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 15:39:02,616 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 15:39:23,917 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 15:39:23,956 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 15:39:23,957 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-16 15:39:23,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:39:23 BoogieIcfgContainer [2022-10-16 15:39:23,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 15:39:23,971 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 15:39:23,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 15:39:23,976 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 15:39:23,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:38:59" (1/3) ... [2022-10-16 15:39:23,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e89fe4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:39:23, skipping insertion in model container [2022-10-16 15:39:23,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:39:00" (2/3) ... [2022-10-16 15:39:23,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e89fe4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:39:23, skipping insertion in model container [2022-10-16 15:39:23,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:39:23" (3/3) ... [2022-10-16 15:39:23,980 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.3-2.c [2022-10-16 15:39:24,005 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 15:39:24,006 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2022-10-16 15:39:24,149 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 15:39:24,158 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;@49980fdc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 15:39:24,159 INFO L358 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2022-10-16 15:39:24,174 INFO L276 IsEmpty]: Start isEmpty. Operand has 2560 states, 2161 states have (on average 1.4914391485423415) internal successors, (3223), 2232 states have internal predecessors, (3223), 306 states have call successors, (306), 44 states have call predecessors, (306), 44 states have return successors, (306), 296 states have call predecessors, (306), 306 states have call successors, (306) [2022-10-16 15:39:24,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-10-16 15:39:24,210 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:39:24,211 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 15:39:24,212 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __startrek_entry_pt_WriterErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [__startrek_entry_pt_ReaderErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, __startrek_entry_pt_ReaderErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 46 more)] === [2022-10-16 15:39:24,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:39:24,218 INFO L85 PathProgramCache]: Analyzing trace with hash 2104003966, now seen corresponding path program 1 times [2022-10-16 15:39:24,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:39:24,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378552935] [2022-10-16 15:39:24,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:39:24,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms