/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.2-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 15:38:41,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 15:38:41,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 15:38:41,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 15:38:41,817 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 15:38:41,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 15:38:41,826 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 15:38:41,835 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 15:38:41,838 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 15:38:41,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 15:38:41,848 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 15:38:41,851 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 15:38:41,851 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 15:38:41,854 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 15:38:41,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 15:38:41,880 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 15:38:41,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 15:38:41,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 15:38:41,886 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 15:38:41,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 15:38:41,890 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 15:38:41,891 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 15:38:41,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 15:38:41,894 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 15:38:41,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 15:38:41,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 15:38:41,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 15:38:41,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 15:38:41,922 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 15:38:41,983 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 15:38:41,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 15:38:41,985 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 15:38:41,985 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 15:38:41,986 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 15:38:41,987 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 15:38:41,989 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 15:38:41,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 15:38:41,990 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 15:38:41,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 15:38:41,991 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 15:38:41,992 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 15:38:41,992 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 15:38:41,992 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 15:38:41,992 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 15:38:41,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 15:38:41,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 15:38:41,993 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 15:38:41,993 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 15:38:41,993 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 15:38:41,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 15:38:41,994 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 15:38:41,994 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 15:38:41,994 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 15:38:41,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 15:38:41,995 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 15:38:41,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:38:41,995 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 15:38:41,995 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 15:38:41,996 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 15:38:41,996 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 15:38:41,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 15:38:41,997 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 15:38:41,997 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 15:38:42,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 15:38:42,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 15:38:42,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 15:38:42,436 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 15:38:42,437 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 15:38:42,438 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2022-10-16 15:38:42,514 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bafb2a6c/8147d7a0319c4010b2c8afb4d999a07c/FLAG185d122ed [2022-10-16 15:38:43,600 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 15:38:43,600 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-2.c [2022-10-16 15:38:43,633 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bafb2a6c/8147d7a0319c4010b2c8afb4d999a07c/FLAG185d122ed [2022-10-16 15:38:44,074 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0bafb2a6c/8147d7a0319c4010b2c8afb4d999a07c [2022-10-16 15:38:44,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 15:38:44,086 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 15:38:44,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 15:38:44,089 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 15:38:44,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 15:38:44,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:38:44" (1/1) ... [2022-10-16 15:38:44,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56662147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:38:44, skipping insertion in model container [2022-10-16 15:38:44,098 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:38:44" (1/1) ... [2022-10-16 15:38:44,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 15:38:44,191 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 15:38:44,450 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.2-2.c[1870,1883] [2022-10-16 15:38:45,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:38:45,303 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 15:38:45,321 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.2-2.c[1870,1883] [2022-10-16 15:38:45,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 15:38:45,652 INFO L208 MainTranslator]: Completed translation [2022-10-16 15:38:45,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:38:45 WrapperNode [2022-10-16 15:38:45,653 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 15:38:45,654 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 15:38:45,654 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 15:38:45,655 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 15:38:45,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:38:45" (1/1) ... [2022-10-16 15:38:45,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:38:45" (1/1) ... [2022-10-16 15:38:46,059 INFO L138 Inliner]: procedures = 99, calls = 2725, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 8257 [2022-10-16 15:38:46,060 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 15:38:46,061 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 15:38:46,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 15:38:46,062 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 15:38:46,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:38:45" (1/1) ... [2022-10-16 15:38:46,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:38:45" (1/1) ... [2022-10-16 15:38:46,188 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:38:45" (1/1) ... [2022-10-16 15:38:46,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:38:45" (1/1) ... [2022-10-16 15:38:46,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:38:45" (1/1) ... [2022-10-16 15:38:46,491 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:38:45" (1/1) ... [2022-10-16 15:38:46,524 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:38:45" (1/1) ... [2022-10-16 15:38:46,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:38:45" (1/1) ... [2022-10-16 15:38:46,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 15:38:46,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 15:38:46,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 15:38:46,597 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 15:38:46,598 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:38:45" (1/1) ... [2022-10-16 15:38:46,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 15:38:46,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 15:38:46,644 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 15:38:46,673 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 15:38:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-10-16 15:38:46,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-10-16 15:38:46,726 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-10-16 15:38:46,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-10-16 15:38:46,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 15:38:46,726 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-10-16 15:38:46,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-10-16 15:38:46,727 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-10-16 15:38:46,727 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-10-16 15:38:46,727 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-10-16 15:38:46,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-10-16 15:38:46,728 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-10-16 15:38:46,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-10-16 15:38:46,728 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-10-16 15:38:46,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-10-16 15:38:46,728 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-10-16 15:38:46,728 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-10-16 15:38:46,729 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-10-16 15:38:46,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-10-16 15:38:46,729 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-10-16 15:38:46,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-10-16 15:38:46,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 15:38:46,729 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-10-16 15:38:46,729 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-10-16 15:38:46,730 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-10-16 15:38:46,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-10-16 15:38:46,730 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-10-16 15:38:46,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-10-16 15:38:46,730 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-10-16 15:38:46,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-10-16 15:38:46,730 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-10-16 15:38:46,731 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-10-16 15:38:46,731 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-10-16 15:38:46,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-10-16 15:38:46,731 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-10-16 15:38:46,731 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-10-16 15:38:46,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 15:38:46,731 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-10-16 15:38:46,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-10-16 15:38:46,732 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-10-16 15:38:46,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-10-16 15:38:46,732 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-10-16 15:38:46,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-10-16 15:38:46,732 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-10-16 15:38:46,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-10-16 15:38:46,732 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-10-16 15:38:46,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-10-16 15:38:46,733 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-10-16 15:38:46,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-10-16 15:38:46,733 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-10-16 15:38:46,734 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-10-16 15:38:46,734 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-10-16 15:38:46,734 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-10-16 15:38:46,734 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-10-16 15:38:46,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-10-16 15:38:46,735 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-10-16 15:38:46,736 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-10-16 15:38:46,736 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-10-16 15:38:46,736 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-10-16 15:38:46,736 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-10-16 15:38:46,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-10-16 15:38:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-10-16 15:38:46,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-10-16 15:38:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-10-16 15:38:46,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-10-16 15:38:46,737 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-10-16 15:38:46,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-10-16 15:38:46,738 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-10-16 15:38:46,738 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-10-16 15:38:46,739 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-10-16 15:38:46,739 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-10-16 15:38:46,739 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-10-16 15:38:46,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-10-16 15:38:46,740 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-10-16 15:38:46,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-10-16 15:38:46,741 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-10-16 15:38:46,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-10-16 15:38:46,742 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-10-16 15:38:46,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-10-16 15:38:46,742 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-10-16 15:38:46,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-10-16 15:38:46,742 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-10-16 15:38:46,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-10-16 15:38:46,742 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-10-16 15:38:46,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-10-16 15:38:46,743 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-10-16 15:38:46,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-10-16 15:38:46,743 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-10-16 15:38:46,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-10-16 15:38:46,744 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2022-10-16 15:38:46,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2022-10-16 15:38:46,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 15:38:46,744 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-10-16 15:38:46,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-10-16 15:38:46,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 15:38:46,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 15:38:47,432 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 15:38:47,439 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 15:39:04,877 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 15:39:04,917 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 15:39:04,917 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-16 15:39:04,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:39:04 BoogieIcfgContainer [2022-10-16 15:39:04,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 15:39:04,928 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 15:39:04,928 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 15:39:04,932 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 15:39:04,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:38:44" (1/3) ... [2022-10-16 15:39:04,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@544ce202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:39:04, skipping insertion in model container [2022-10-16 15:39:04,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:38:45" (2/3) ... [2022-10-16 15:39:04,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@544ce202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:39:04, skipping insertion in model container [2022-10-16 15:39:04,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:39:04" (3/3) ... [2022-10-16 15:39:04,935 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-2.c [2022-10-16 15:39:04,959 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 15:39:04,960 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2022-10-16 15:39:05,101 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 15:39:05,115 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;@34316c85, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 15:39:05,115 INFO L358 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2022-10-16 15:39:05,134 INFO L276 IsEmpty]: Start isEmpty. Operand has 2555 states, 2157 states have (on average 1.4914232730644414) internal successors, (3217), 2228 states have internal predecessors, (3217), 304 states have call successors, (304), 45 states have call predecessors, (304), 45 states have return successors, (304), 294 states have call predecessors, (304), 304 states have call successors, (304) [2022-10-16 15:39:05,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-10-16 15:39:05,187 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 15:39:05,189 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 15:39:05,191 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 15:39:05,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 15:39:05,199 INFO L85 PathProgramCache]: Analyzing trace with hash -825012938, now seen corresponding path program 1 times [2022-10-16 15:39:05,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 15:39:05,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567788318] [2022-10-16 15:39:05,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 15:39:05,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms